My Antenna System.
The antennas principally used at my QTH are vertical type antennas with omni direction transmitting characteristics, as I have only a 700 square foot roof space I must maximize the utilization of the space available to install as many antennas possible for the different ham bands possible. The objective is to be on every single band from 3.7Mhz through to 2400mhz. 
The present system here is as follows:-
High Frequency:
80 Meter - Not Installed, not decided.
40 Meter - Home brew Vertical
20 / 15 / 10 Meters - Fritzel GPA-30 Vetrical Antenna from Germany.
17 / 12 Meters WARC - GP-2W Vertical Antenna from Wimo Germany - SWR is 1.1 !!!!
12 Meter mono band Vertical Antenna from Ranger USA
The present system here is as follows:-
High Frequency:
80 Meter - Not Installed, not decided.
40 Meter - Home brew Vertical
20 / 15 / 10 Meters - Fritzel GPA-30 Vetrical Antenna from Germany.
17 / 12 Meters WARC - GP-2W Vertical Antenna from Wimo Germany - SWR is 1.1 !!!!
12 Meter mono band Vertical Antenna from Ranger USA
7 - 30MHz + 50MHz Vertical Antenna - Diamond BB2M
15M & 20M Rigid Aluminium Dipole - Using a pair of Reyco 20M (14MHz) Traps - 2Kw rating (under construction)
Very High Frequency and Ultra High Frequency:
6M / 2M / 70cm - GP-15 Vertical Antenna from Comet of Japan
Very High Frequency and Ultra High Frequency:
6M / 2M / 70cm - GP-15 Vertical Antenna from Comet of Japan
6m Folded dipole Halo Loop
29Mhz (FM) / 51Mhz (FM) / 144Mhz / 430Mhz CR8900 Vertical Antenna from Diamond Antenna of Japan (converted for base use and weather proofed)
1/4 wave whip 144Mhz Vertical Antenna
29Mhz (FM) / 51Mhz (FM) / 144Mhz / 430Mhz CR8900 Vertical Antenna from Diamond Antenna of Japan (converted for base use and weather proofed)
1/4 wave whip 144Mhz Vertical Antenna
144MHz/430MHz/1.2GHz Diamond X-7000 Vertical
COMET ANTENNA DS-15 25~1500MHZ WIDE BAND DISCONE
RX FREQUENCY :25 to 1500MHZ
TX FREQUENCY :50, 145, 900 & 1200MHZ
GAIN : 5.12dbi
MAX. POWER : 100W
IMPEDANCE : 50 ohm
V.S.W.R. :LESS THAN 1.5
(AT CENTER OF TX-FREQ)
LENGTH :1.4M
WEGHT :1.45KG
TX FREQUENCY :50, 145, 900 & 1200MHZ
GAIN : 5.12dbi
MAX. POWER : 100W
IMPEDANCE : 50 ohm
V.S.W.R. :LESS THAN 1.5
(AT CENTER OF TX-FREQ)
LENGTH :1.4M
WEGHT :1.45KG
Yagis:
Diamond 2 element HB9CV yagi for 50Mhz
Diamond 4 element HB9CV yagi for 50MHz
Create 5 Element 50MHz yagi, 12 ft. boom, 3Kw rating
Diamond 5 Element 144MHz yagi - 9.1dBi gain - A144S5R- 70 Deg. V. Pol.
Home brew 5 element 430 Mhz yagi based on ON6MU design [see below]:
This is a modified version of the ON6MU design-
Home brew 10 element 430 Mhz yagi based on ON6MU design [in progress]
Wires:
2 long wires for SWL / BCL Rx work
1 x 10 Meter Dipole [Not installed]
This is a modified version of the ON6MU design-
Home brew 10 element 430 Mhz yagi based on ON6MU design [in progress]
Wires:
2 long wires for SWL / BCL Rx work
1 x 10 Meter Dipole [Not installed]
Magnetic Balun End Feed Zepp Wire Antenna 35' and 1.5" long -300 watts
MW Reception Loops:
Terk Technologies AM Loop [see below]:
Radio Shack AM Loop [see below]:
Chinese made BCL AM Loop
Antenna Tuners:
Welz AC-35M Matching Network
Murch Electronics UT-2000A "The Ultimate Transmatch" High Power Roller Inductor Tuner
Tokyo High Power HC-500A Antenna Tuner
LAR VHF Omni-Match 750 watt rating 2 Meter Tuner
Leader LAR-896 50Mhz 100 watt rating Antenna Coupler
Daiwa CNW-919 2 Meter Antenna Tuner
Howes CTU-9 for SWL / BCL work
Gilfer Associates Preselector for SWL / BCL work
Mizuho SX-59 HF Transceiver Preselector
Kenwwood SWT-1 144-148MHz Antenna Tuning Unit
Kenwwood SWT-2 430-450MHz Antenna Tuning Unit
Goldline 13Mhz-75MHz Antenna Tuning Unit (see below)
Filters:
Bencher Low Pass Filter, 3Kw
7Mhz Band Pass Filter designed by BG1HCS / BG1CEP / BG1JA
14Mhz Band Pass Filter designed by BG1HCS / BG1CEP / BG1JA
ICE 50MHz Low Pass Filter, 3Kw
MW Reception Loops:
Terk Technologies AM Loop [see below]:
Radio Shack AM Loop [see below]:
Chinese made BCL AM Loop
Antenna Tuners:
Welz AC-35M Matching Network
Murch Electronics UT-2000A "The Ultimate Transmatch" High Power Roller Inductor Tuner
Tokyo High Power HC-500A Antenna Tuner
LAR VHF Omni-Match 750 watt rating 2 Meter Tuner
Leader LAR-896 50Mhz 100 watt rating Antenna Coupler
Daiwa CNW-919 2 Meter Antenna Tuner
Howes CTU-9 for SWL / BCL work
Gilfer Associates Preselector for SWL / BCL work
Mizuho SX-59 HF Transceiver Preselector
Kenwwood SWT-1 144-148MHz Antenna Tuning Unit
Kenwwood SWT-2 430-450MHz Antenna Tuning Unit
Goldline 13Mhz-75MHz Antenna Tuning Unit (see below)
Filters:
Bencher Low Pass Filter, 3Kw
7Mhz Band Pass Filter designed by BG1HCS / BG1CEP / BG1JA
14Mhz Band Pass Filter designed by BG1HCS / BG1CEP / BG1JA
ICE 50MHz Low Pass Filter, 3Kw
ICE 412W 50MHz Bandpass Filter 200 Watts
DuneStar 300-18 Bandpass Filter - 18Mhz - 17 meters
Shinwa 50 MHz Filter
144MHz Home brew Band Reject Filter
Kuranishi 430 MHz Band Pass Filter
Erickson Engineering 1.8Mhz 9-Pole High Pass Filter BCF-18S
RF Inquiry HF Common Mode Filter CF250E
RF Inquiry Common Ground Strap Filter System
Shinwa 50 MHz Filter
144MHz Home brew Band Reject Filter
Kuranishi 430 MHz Band Pass Filter
Erickson Engineering 1.8Mhz 9-Pole High Pass Filter BCF-18S
RF Inquiry HF Common Mode Filter CF250E
RF Inquiry Common Ground Strap Filter System
Comet CFX-514J Triplexer - 50MHz/144MHz//430MHz
Welz Duplexer DF-72A x 2 pcs. 144MHz/430MHz
Diamond Duplexer MX-37DM 430MHz/1.2GHz
Diamond Triplexer MX-2000 1.6-60MHz (800 W PEP), 110 -170 MHz (800 W PEP), 300 - 950 MHz (500 W PEP)
TVI High-pass Filters:
2 nos. AKD no. HPF-2
Preamplifiers:
2 Meter - 3SK129 GaAs FET Ultra Low Noise
6 Meter - BF-960 FET Very Low Noise
6 Meter - 3SK121 GaAs FET Ultra Low Noise
6 Meter - 3SK129 GaAs FET Ultra Low Noise
HF-6 Meter Datong preamplifier
Antenna Analyzer:
Feature Tech Antenna Analyzer model AW-06A 2.6~65 Mhz
Antenna Rotor for HB9CV:
Philips digital programmable rotator system with 12 memory preset.
Diamond Triplexer MX-2000 1.6-60MHz (800 W PEP), 110 -170 MHz (800 W PEP), 300 - 950 MHz (500 W PEP)
TVI High-pass Filters:
2 nos. AKD no. HPF-2
Preamplifiers:
2 Meter - 3SK129 GaAs FET Ultra Low Noise
6 Meter - BF-960 FET Very Low Noise
6 Meter - 3SK121 GaAs FET Ultra Low Noise
6 Meter - 3SK129 GaAs FET Ultra Low Noise
HF-6 Meter Datong preamplifier
Antenna Analyzer:
Feature Tech Antenna Analyzer model AW-06A 2.6~65 Mhz
Antenna Rotor for HB9CV:
Philips digital programmable rotator system with 12 memory preset.
Diamond Antenna BB2M Wide Band Vertical
| BB2M Wide band mobile antenna Frequency: TX 7 to 30MHz/50 to 54MHz(with antenna tuner) RX 3 to 100MHz / Max. power rating: 120W(SSB), 40W(FM) / Length: 1.98m / Weight: 800g / Impedance: 50ohms / VSWR: Less than 2.0:1 / Connector: M-P |
Photo 1:
Close up of my BB2M that was weatherproofed on 6th February, 2008 by adding a double section of uPVC
tube encasing the radiating element. The uPVC tube are bonded using epoxy glue.
Photo 2:
Overall view of my weatherproofed BB2M modified and installed on 6th February, 2007.
Only 7MHz was about 1.5:1 SWR, the other band above 7MHz were below 1.5:1!
Magnetic Balun End Fed Zepp Wire Antenna
Installed on 8th February, 2008
The Magnetic Balun End Fed Zepp Wire Antenna:
Background:
Most built-in antenna tuners have a limited range for impedance matching. They often
only match impedances between 10-200 ohms. A End Feed Zepp Wire Antenna (LW)
with it's high impedance is not possible to match. Since a longwire antenna in most cases
is located at a distance from the station/tuner, you cannot connect a low-impedance
coaxial cable at the antenna feedpoint.
The Solution:
Is to use a broadband transformer, which transforms the impedance down to 10 times
and brings down the high impedance to a value close to 50 ohms and which the tuner
can match. Because of low SWR, the losses are now kept to a minimum.
In this case:
I ordered a Magenetic Balun fron UK - The DX System Radio MLB balun is rated for
300 Watts. As I wanted to be able to operate on 7MHz, I therefore cut the wire length to
33 feet and 1.5 inches in length and installed it on 8th February, 2008. The coaxial cable
will never experience a SWR of more than 3:1 . The wire used was 2.5mm diameter,
the coaxial cable used was the 50 Ohm grey coloured 5D2V from Kansai Tsushin Densen.
A magnetic transformer should not be used with an antenna, which is alomst resonant at the operating frequency and thus very close to 50 ohm impedance . In that case the impedance will be transformed down to 50/10 = 5 ohm which may be difficult for the tuner to handle.
The beauty of this MLB balun is that it could be connected up to any large metallic object such as a fence, the body of a car, a large roll of wire. The best and most efficeint way is to connect it up to a length of wire (as long as possible), but should at least be a 1/4 wavelength of the lowest frequency to be operated on
The antenna is useable on 7, 10, 14, 18, 21, 24, 28 and 50MHz.
40 Meter Vertical Antenna Construction
This is stage one of my 40M Veritical Project - Conversion from a 27MHz 5/8
lambda vertical antenna started on 15/02/2008.
Stage 1:
1. Removal of the 27MHz coil from inside the antenna base;
2. Removal of the SO-239 socket from the base as it is not used;
3. Drilling holes and attachement of small nylon cutting board to base - this will
be used to glue the 100 mm diameter 7MHz loading coil (on the underside of
the board). The coil is made from a 100 mm uPVC section of pipe with 6
turns of insulated 6 mm single strand copper wire for Hi-Q. The coil is now
being wound.
4. Length of the antenna is 5.35 meters. This resonates at 14.1750 MHz exactly
so without a coil you could have a mono band vertical for 20 meters.
See the photos of stage one below:
Photo 1 above: The loading coil and the SO-239 socket from the base of the
27 MHz vertical has been removed as it will not be used. The nylon board has
been fixed to the base of the vertical. The 100 mm uPVC loading coil for 7 Mhz
that is 6 turns of insulated 6 mm single stand copper wire (for Higher Q) with then
be glued to the bottom of the nylon board coil platform with expoxy resin glue.
Photo 2 above: side section showing the mounted nylon coil platform and the
RF connection point from coil to radiator element. The 100 mm diameter 6
turn 7MHz coil will be mounted underneath the nylon coil platform.
Stage 2 is the making and winding of the 7MHz loading coil.
THE COIL
This is used to make the antenna resonate at lower frequencies. I wound my coil using 6 mm
insulated copper wire, the oruginal version by SM0VPO called for 4 mm wire. I choose 6 mm
for a higher "Q" factor which should make some difference on a low band such as 7 MHZ.
The coil is 100 mm Dia (the same as a tin of Del Monte pineapple chunks)! The coil pitch is 1cm
per turn. I used a length of white uPVC pipe as the coil former to support the coil. Copper tube
can easily be soldered also.
FEEDING THE ANTENNA
Feed the antenna with 50 ohm coaxial cable, braid connected to the bracket and the center
conductor conneted via solder lug to the coil. Coils can be wound for the following bands:-
0 turns = 14 MHz (20 meter band) (VSWR - almost 1:1)
2 turns = 10 MHz (30 meter band) (VSWR - almost 1:1)
6 turns = 7 MHz (40 meter band) (VSWR - about 1.1:1)
51 turns = 3.8 MHz (80 meter band) (VSWR - about 1.4:1)
52 turns = 3.75 MHz (80 meter band) (VSWR - about 1.4:1)
53 turns = 3.7 MHz (80 meter band) (VSWR - about 1.4:1)
54 turns = 3.65 MHz (80 meter band) (VSWR - about 1.4:1)
55 turns = 3.6 MHz (80 meter band) (VSWR - about 1.4:1)
56 turns = 3.55 MHz (80 meter band) (VSWR - about 1.4:1)
57 turns = 3.5 MHz (80 meter band) (VSWR - about 1.4:1)
In my case I decided to solder a solder lug to the center pin of an SO-239 Socket
which would then be attched to the stainless steel nut and bolt terminal at the bottom
of the loading coil and again fixed solid with some aradite expoxy glue. The electrical
connections will all then be sealed in silicone for weatherproofing.
Stage 2: The 7 MHz Loading Coil
The completion of winding of the HQ loading coil was made on 16/02/2008.
The photos below show the completion of the loading coil for the 40 Meter
Vertical Antenna.
The coil is wound on a 100 mm uPVC pipe that is used as the coil former.
Stainless steel nuts and bolts used for the coil connection points and 6mm insulated
copper wire is used to wind the 6 turns for the coil.
The coil was first set in place using "Sellery" nylon cable clips setting the coil pitch
spacing at 1 cm, these are stuck into place using AA glue. Once this is done the coil
is then smothered in expoxy glue to ensure no movement and that it is robust.
The shiny surface you see is the dried epoxy glue, although it is not asthetic,
it serves the purpose of strengthening the coil.
Photo above: Somewhat ugly (encased in epoxy), the 7 MHz HQ loading coil. The coil
connection points on left are staineless nuts and bolts.
Photo above: Close up of the "Sellery" nylon cable clips used to hold down the coil and
determine the 1 cm coil pitch.
Stage 3: Attaching the loading coil to the coil platform. Saturday 23/02/2008
Today I went to Reclamation Street to buy a piece of 150mm x 190mm Bakelite to
finish the modular coil platform. I also purchased some nylon nuts and bolts for the
fastening of the coil platform to the underside of the antenna.
The bakelite sheet was HK$10.00 and cut to order, nylon nuts and bolts were HK$1.50
each.
The two photos show the coil now glued to the bakelite and fastened to the nylon
platorm. A weatherproof case is also attached which has the SO-239 connector
affixed. This is almost now finished except for the wiring connections to the antenna
itself.
Photo above: Vertical view of the 7MHz coil glued to the baklite sheet and the afixed to the
nylon coil platform using nylon nuts and bolts. The SO-239 Connector box is also attached.
Photo Above: Side view of the 7MHz Coil Platform Assembly completed on 23/02/2009. Now for the wiring
work.
Stage 4 ~ 8th and 9th March, 2008 - Final Stages.
On Saturday I mounted the antenna pole on the roof along with the ground connecor.
A 5 foot heavy duty aluminium pole is used for the mast, tis was mounted to an existing
railing using 4 nos. of 4" staineless steel hose clamps.
I also reinforced the main vertical bracket section of the vertical by attaching a uPVC
bottom section in order to give additional strength to this section as the original diameter
of aluminium tubing used was thought to be a little under engineered. The photos below
show the strengthening of the bottom section of the aluminim braket section. The uPVC
tube is fixed rigidly to the aluminium tube by use of epoxy glue and silicone sealant.
Sunday 9th March I will concentrate on the final electrical connections of the coil to the
vertical element and if time and weather permits, the final assembly of the vertical,
measuring and erection of the antenna onto the mounting pole.
Photo Above: Shows the uPVC tube glued to the top element section using epoxy and silcone glue to
ensure no movement. The purpose id to strenghen the lower portion of the vertical antenna.
Photo Above: showing the top section of the uPVC reinforcement section just before the connection points
for the upper tubing sections.
Photo Above: Shows the bottom Vertical Antenna mounting bracket in relation to the reiforced section.
The photos below show the 7MHz Antenna Mounting Pole and grounding put into place
and ready to receive the antenna.
Below are two photos showing the antenna first mounted on it's pole late afternoon on
9/3/2008, the Hi-Q base loading coil and platform can be clearly seen underneath.
Finally, the whole antenna was erected, connected up and coaxial cable connected at 5:45pm
on 9/3/2008 and I was able to test out the SWR. A flat 1.5:1 SWR across the SSB portion of
7MHz, not to bad for a homebrew antenna effort. With a little tuning on the antenna tuner it is
1:1 on the SWR meter. Now I need some propagation to test it. The photos below show the
antenna completed at twilight, it stand over 17.5 feet in the air.
POST INSTALLATION NOTE: 11/3/2008 ~ Further Adjustment of the connection leads and
the ground return wire yielded an SWR reading of 1.15:1 !!! I can't expect more.
15M & 20M Aluminium Rigid Dipole using a pair of Reyco Unadilla 2Kw 20M Traps.
1 pair of Unadilla Reyco 20m (14Mhz) Traps
Rated for 2KW PEP
Built from high quality stainless steel and aluminum hardware to resist corrosion, these rugged traps have a pull strength of over 600 lbs.
Trap coils are waterproofed and the condensers are epoxy-sealed.
(Work in progress - to be continued)
Rated for 2KW PEP
Trap coils are waterproofed and the condensers are epoxy-sealed.
Shorty Forty Dipole Antenna (Under Construction)
The following information is for a dipole for 10M/40M called the Shorty Forty which is under construction.
Original design from Dino, SV1XY
Favorite VSWR Meters
1. Daiwa CN-720B
2. Alinco EM-300 Dual Meter SWR/Power & Modulation Meter with on the air red LED.
Frequency Range: 3.5MHz to 145MHz. Power Range: 20W/200W
3. Daiwa CN-460M
140-450MHz Compact Cross Needle SWR Meter. 15/150 Watt ranges with illuminated meter
and SO-239 connectors.
4. Luso SWR-X II
Luso SWR-X II swr meter made in Japan circa 1986.
Frequency range: 1.9MHz to 50MHz Range 1 and 144MHz range 2.
Power Range: Low 20W / High 200W
Bird 43 Meter / Elements.
Bird 43 Thruline RF Wattmeter
- Bird Model 43 Thruline RF Wattmeter
- Measures Forward and Reverse Power
- Quick Change Connectors
- Accuracy +/- 5% of full scale
- Rugged and light weight for field use
- 450 kHz to 2.7 GHz 100 mW to 10 kW
- Elements sold separately
|
Product Specifications: | |||||||||||||||||
|
The Bird Model 43 is the industry standard for Thruline RF power measurements with a wide
selection of elements available to cover a wide choice of frequency ranges and power ranges.
Coaxial Dynamics Model: 82019
- 1000 Watts 25-60 MHz (82019) (Qty 1)
- Equivalent to Bird Model 43 Watt Meter Element 1000A
- Gold Plated For High Conductivity
- Interchangeable With Other Elements
- NIST Traceable Standards For Accuracy
- Bird Model 43 Watt Meter Compatible
The 82000 series of Coaxial Dynamics Plug-In Elements are calibrated to exacting specifications to
assure interchangeability with one another, and with any instrument in the 7/8" line size - whether
purchased today or 20 years ago. Element accuracy is insured using RF Power Standards (NIST traceable)
that are supported by more than 30 years of history and experience.
Bird Model: 5A Element
25-60 MHz 5 Watts (Qty 1)
NIST Traceable Standards For Accuracy
Bird Model 43 & Coaxial Dynamics Watt Meter Equivalent Compatible
| 82000 Series Plug-In Elements (30µA) |
|
Power |
Frequency Range (MHz) | |||||||
|
2-30 |
25-60 |
50-125 |
100-250 |
200-500 |
400-1000 |
950-1300 |
1100-1800 | |
|
5 W |
--- |
82012 |
82020 |
82028 |
82036 |
82045 |
82068 |
82079 |
|
10 W |
--- |
82013 |
82021 |
82029 |
82037 |
82046 |
82069 |
82080 |
|
25 W |
--- |
82014 |
82022 |
82030 |
82038 |
82047 |
82070 |
82081 |
|
50 W |
82004 |
82015 |
82023 |
82031 |
82039 |
82048 |
82071 |
82082 |
|
100 W |
82005 |
82016 |
82024 |
82032 |
82041 |
82049 |
82072 |
82083 |
|
250 W |
82006 |
82017 |
82025 |
82033 |
82042 |
82050 |
82073 |
--- |
|
500 W |
82007 |
82018 |
82026 |
82034 |
82043 |
82051 |
82074 |
--- |
|
1000 W |
82008 |
82019 |
82027 |
82035 |
82044 |
82052 |
82075 |
--- |
|
2500 W |
82009 |
--- |
--- |
--- |
--- |
--- |
--- |
--- |
|
5000 W |
82010 |
--- |
--- |
--- |
--- |
--- |
--- |
--- |
Bird Elements
| Table 1 - Standard Elements 30 µA | ||||||
|
Frequency Bands (MHz) | ||||||
|
Power Range |
2-30 |
25-60 |
50-125 |
100-250 |
200-500 |
400-1000 |
|
5 W |
- |
5A |
5B |
5C |
5D |
5E |
|
10 W |
- |
10A |
10B |
10C |
10D |
10E |
|
25 W |
- |
25A |
25B |
25C |
25D |
25E |
|
50 W |
50H |
50A |
50B |
50C |
50D |
50E |
|
100 W |
100H |
100A |
100B |
100C |
100D |
100E |
|
250 W |
250H |
250A |
250B |
250C |
250D |
250E |
|
500 W |
500H |
500A |
500B |
500C |
500D |
500E |
|
1000 W |
1000H |
1000A |
1000B |
1000C |
1000D |
1000E |
|
2500 W |
2500H |
- |
- |
- |
- |
- |
|
5000 W |
5000H |
- |
- |
- |
- |
- |
Antenna Tuners.
1. My old trusty Murch Electronics "Ultimate Transmatch" Roller Inductor Antenna Tuner Model UT-2000A:
Below: Inside the Murch UT-2000A
Below: The Schematic for the UT-2000A
2. The "Plain Jane" Tokyo Hy-Power HC-500A Antenna Coupler:
3. The Welz AC-35M Matching Network:
RX Antenna Distribution - 6 Way Splitter System
A simple project underway to make a splitter distribution board for one Antenna input
and 6 RX outputs to various receivers using:-
1 x Super Star Splitter Model 1022 [2 way splitter, 5-1000MHz, F Female Connectors];
2 x Super Star Splitter Model 1023 [3 way splitter, 5-1000MHz, F Female Connectors].
These will be fixed to a bakelite board and interconnected with 50 ohm coaxial cable
and then the input and outputs will be terminated in 50 ohm SO-239 sockets. The
splitters all have grounding terminals and are made of die cast housings, all of which
will be terminated to common ground.
| Coaxial Cable Type | Out diam. |
Bend radius |
Imp. | Vel. |
Kg/ 100m |
pF/m | 10 | 14 | 28 | 30 | 50 | 144 | 435 | 1296 | 2400 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aircell 7 | 7.3 | 25 | 50 | 0.83 | 7.2 | 74 | 3.4 | 3.7 | 4.8 | 7.9 | 14.0 | 26.1 | 38.0 | |||||||||||||||
| Aircom Plus | 10.8 | 55 | 50 | 0.85 | 15.0 | 84 | 0.9 | 4.5 | 8.2 | 14.5 | 23.0 | |||||||||||||||||
|
Cellflex LCF12- 50 |
16.2 | 70 | 50 | ? | 22 | ? | 0.67 | 1.17 | ||||||||||||||||||||
|
Cellflex LCF58- 50 |
21.4 | 90 | 50 | ? | 37 | ? | 0.5 | 0.88 | ||||||||||||||||||||
|
Cellflex LCF78- 50 |
28 | 120 | 50 | ? | 53 | ? | 0.35 | 0.62 | ||||||||||||||||||||
| Cellflex LCF114-50 | 39.4 | 200 | 50 | ? | 105 | ? | 0.28 | 0.49 | ||||||||||||||||||||
| Cellflex LCF158-50 | 51 | 300 | 50 | ? | 153 | ? | 0.21 | 0.37 | ||||||||||||||||||||
|
Cellflex SCF14- 50 |
7.8 | 25 | 50 | ? | 7 | ? | 1.81 | 3.2 | ||||||||||||||||||||
|
Cellflex SCF38- 50 |
10.2 | 25 | 50 | ? | 12 | ? | 1.31 | 2.29 | ||||||||||||||||||||
| Cellflex SCF 12-50 | 13.7 | 32 | 50 | ? | 21 | ? | 1.03 | 1.8 | ||||||||||||||||||||
| Ecoflex 10 | 10.2 | 40 | 50 | 0.86 | 13.1 | 77 | 4.8 | 8.9 | 16.5 | 23.1 | ||||||||||||||||||
| H-43 | 9.8 | 100 | 75 | 0.85 | 9.1 | 52 | 1.2 | 2.5 | 8.0 | 14.3 | 23.7 | |||||||||||||||||
| H-100 | 9.8 | 50 | 0.84 | 80 | ||||||||||||||||||||||||
| H-500 | 9.8 | 75 | 50 | 0.81 | 13.5 | 82 | 1.3 | 2.9 | 9.3 | 16.8 | 24.5 | |||||||||||||||||
| H-1000 | 10.3 | 75 | 50 | 0.83 | 14.0 | 80 | 1.4 | 2.0 | 2.7 | 4.8 | 8.5 | 15.7 | 23.0 | |||||||||||||||
| H-2000 Flex | 10.3 | 50 | 50 | 0.83 | 14.0 | 80 | 1.4 | 2.0 | 2.7 | 4.8 | 8.5 | 15.7 | 23.0 | |||||||||||||||
| RG-11 | 10.3 | 50 | 75 | 0.66 | 13.9 | 67 | 4.6 | 18.0 | 30.0 | |||||||||||||||||||
| RG-58 others | 4.9 | 32 | 50 | 0.78 | 3.2 | 82 | 8.3 | 23.0 | 44.8 | |||||||||||||||||||
|
RG-58 CU |
5.0 | 30 | 50 | 0.66 | 4.0 | 101 | 6.2 | 8.0 | 11.0 | 17.8 | 33.0 | 65.0 | 100.0 | |||||||||||||||
|
RG- 59 |
6.15 | 30 | 75 | 0.66 | 5.7 | 67 | 25.0 | 33.6 | ||||||||||||||||||||
|
RG- 174U |
2.8 | 15 | 50 | 0.66 | 101 | |||||||||||||||||||||||
|
RG- 213U |
10.3 | 110 | 50 | 0.66 | 15.5 | 101 | 2.2 | 3.1 | 4.4 | 7.9 | 15.0 | 27.5 | 47.0 | |||||||||||||||
|
RG- 214U |
10.8 | ? | 50 | ? | ? | 100 | 2 | 3.7 | ||||||||||||||||||||
|
RG- 217U |
13.8 | ? | 50 | 0.66 | ? | 97 | 1.4 | 3.3 | ||||||||||||||||||||
|
RG- 223 |
5.4 | 25 | 50 | 0.66 | 6.0 | 101 | 6.1 | 7.9 | 11.0 | 17.6 | ||||||||||||||||||
|
Suhner S 12272-04 |
15 | 150 | 50 | 0.82 | 19.1 | 82 | 1.0 | 2.0 | 3.5 | 6.6 | 19 | |||||||||||||||||
|
Suhner Sucofeed 1/2" |
16 | 70 | 50 | 0.88 | 25 | 76 | 2.7 | 4.8 | 7.8 | 12 | ||||||||||||||||||
|
Suhner Sucofeed 7/8" |
27.8 | 120 | 50 | 0.87 | 59.8 | 76.5 | 1.5 | 2.8 | 4.8 | 6.9 | ||||||||||||||||||
|
Suhner Sucofeed 1-1/4" |
39.5 | 200 | 50 | 0.87 | 94 | 78 | 1.1 | 1.9 | 3.5 | 5.0 | ||||||||||||||||||
|
Suhner Sucofeed 1-5/8" |
50 | 300 | 50 | 0.87 | 145 | 77.5 | 0.8 | 1.6 |
Typical RF Transmission Line Loss Models
Scenario 1: 50 MHz
50MHz Coax Loss Calculation 1
| Parameters | |
| Transmission Line | 10D-FB |
| Code | 10D-FB |
| Data source | |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.09 Ù |
| Velocity Factor | 0.851 |
| Length | 2151.53 °, 5.976 ë, 30.480 m |
| Line Loss (matched) | 0.667 dB |
| ã | 7.677e-4+j3.755e-1 |
| k1, k2 | 8.854e-7, 8.146e-12 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) |
0.999607 |
50MHz Coax Loss Calculation 2
| Parameters | |
| Transmission Line | 8D-FB |
| Code | 8D-FB |
| Data source | |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.12 Ù |
| Velocity Factor | 0.851 |
| Length | 2151.54 °, 5.976 ë, 30.480 m |
| Line Loss (matched) | 0.875 dB |
| ã | 1.007e-3+j3.755e-1 |
| k1, k2 | 1.177e-6, 8.506e-12 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999706 |
50MHz Coax Loss Calculation 3
| Parameters | |
| Transmission Line | 5D-FB |
| Code | 5D-FB |
| Data source | |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.19 Ù |
| Velocity Factor | 0.851 |
| Length | 2151.54 °, 5.977 ë, 30.480 m |
| Line Loss (matched) | 1.308 dB |
| ã | 1.506e-3+j3.755e-1 |
| k1, k2 | 1.778e-6, 1.007e-11 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999841 |
50MHz Coax Loss Calculation 4
| Parameters | |
| Transmission Line | Belden 8237 (RG8/U) |
| Code | B8237 |
| Data source | Belden |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 52.00-j0.14 Ù |
| Velocity Factor | 0.660 |
| Length | 2770.92 °, 7.697 ë, 30.480 m |
| Line Loss (matched) | 1.306 dB |
| ã | 1.504e-3+j4.836e-1 |
| k1, k2 | 1.709e-6, 1.964e-11 |
| Loss model source data frequency range | 1.000 MHz - 700.000 MHz |
| Correlation coefficient (r) | 0.999900 |
50MHz Coax Loss Calculation 5
| Parameters | |
| Transmission Line | Belden 8259 (RG58A/U) |
| Code | B8259 |
| Data source | Belden |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.33 Ù |
| Velocity Factor | 0.660 |
| Length | 2770.97 °, 7.697 ë, 30.480 m |
| Line Loss (matched) | 3.622 dB |
| ã | 4.170e-3+j4.836e-1 |
| k1, k2 | 4.531e-6, 8.362e-11 |
| Loss model source data frequency range | 1.000 MHz - 1000.000 MHz |
| Correlation coefficient (r) | 0.999924 |
50MHz Coax Loss Calculation 6
| Parameters | |
| Transmission Line | Belden 8267 (RG-213/U) |
| Code | B8267 |
| Data source | Belden |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.14 Ù |
| Velocity Factor | 0.660 |
| Length | 2770.92 °, 7.697 ë, 30.480 m |
| Line Loss (matched) | 1.403 dB |
| ã | 1.616e-3+j4.836e-1 |
| k1, k2 | 1.807e-6, 2.510e-11 |
| Loss model source data frequency range | 1.000 MHz - 4000.000 MHz |
| Correlation coefficient (r) | 0.999842 |
50MHz Coax Loss Calculation 7
| Parameters | |
| Transmission Line | Belden 8268 (RG-214/U) |
| Code | B8268 |
| Data source | Belden |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.14 Ù |
| Velocity Factor | 0.660 |
| Length | 2770.92 °, 7.697 ë, 30.480 m |
| Line Loss (matched) | 1.376 dB |
| ã | 1.584e-3+j4.836e-1 |
| k1, k2 | 1.791e-6, 2.186e-11 |
| Loss model source data frequency range | 1.000 MHz - 4000.000 MHz |
| Correlation coefficient (r) | 0.998846 |
50MHz Coax Loss Calculation 8
| Parameters | |
| Transmission Line | Times Microwave LMR-400 |
| Code | LMR-400 |
| Data source | TMS |
| Frequency | 50.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.13 Ù |
| Velocity Factor | 0.851 |
| Length | 2151.54 °, 5.976 ë, 30.480 m |
| Line Loss (matched) | 0.865 dB |
| ã | 9.961e-4+j3.755e-1 |
| k1, k2 | 1.201e-6, 3.144e-12 |
| Loss model source data frequency range | 30.000 MHz - 2500.000 MHz |
| Correlation coefficient (r) | 0.999841 |
Scenario 2: 430 MHz
430MHz Coax Loss Calculation 1
| Parameters | |
| Transmission Line | 10D-FB |
| Code | 10D-FB |
| Data source | DUMEI |
| Frequency | 430.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.03 Ù |
| Velocity Factor | 0.851 |
| Length | 18503.16 °, 51.398 ë, 30.480 m |
| Line Loss (matched) | 2.186 dB |
| ã | 2.517e-3+j3.229e+0 |
| k1, k2 | 8.854e-7, 8.146e-12 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999607 |
430MHz Coax Loss Calculation 2
| Parameters | |
| Transmission Line | 8D-FB |
| Code | 8D-FB |
| Data source | DUMEI |
| Frequency | 430.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.04 Ù |
| Velocity Factor | 0.851 |
| Length | 18503.16 °, 51.398 ë, 30.480 m |
| Line Loss (matched) | 2.807 dB |
| ã | 3.232e-3+j3.229e+0 |
| k1, k2 | 1.177e-6, 8.506e-12 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999706 |
430MHz Coax Loss Calculation 3
| Parameters | |
| Transmission Line | 5D-FB |
| Code | 5D-FB |
| Data source | DUMEI |
| Frequency | 430.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.06 Ù |
| Velocity Factor | 0.851 |
| Length | 18503.17 °, 51.398 ë, 30.480 m |
| Line Loss (matched) | 4.121 dB |
| ã | 4.744e-3+j3.229e+0 |
| k1, k2 | 1.778e-6, 1.007e-11 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999841 |
430MHz Coax Loss Calculation 4
| Parameters | |
| Transmission Line | RG-8/U |
| Code | RG-8/U |
| Data source | DSE |
| Frequency | 430.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 52.00-j0.04 Ù |
| Velocity Factor | 0.660 |
| Length | 23829.82 °, 66.194 ë, 30.480 m |
| Line Loss (matched) | 5.101 dB |
| ã | 5.873e-3+j4.159e+0 |
| k1, k2 | 1.819e-6, 3.093e-11 |
| Loss model source data frequency range | 50.000 MHz - 1000.000 MHz |
| Correlation coefficient (r) | 0.998211 |
430MHz Coax Loss Calculation 5
| Parameters | |
| Transmission Line | RG-58A/U |
| Code | RG-58A/U |
| Data source | DSE |
| Frequency | 430.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.06 Ù |
| Velocity Factor | 0.660 |
| Length | 23829.84 °, 66.194 ë, 30.480 m |
| Line Loss (matched) | 12.051 dB |
| ã | 1.387e-2+j4.159e+0 |
| k1, k2 | 3.943e-6, 9.010e-11 |
| Loss model source data frequency range | 50.000 MHz - 1000.000 MHz |
| Correlation coefficient (r) | 0.999926 |
430MHz Coax Loss Calculation 6
| Parameters | |
| Transmission Line | Times Microwave LMR-400 |
| Code | LMR-400 |
| Data source | TMS |
| Frequency | 430.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.04 Ù |
| Velocity Factor | 0.851 |
| Length | 18503.16 °, 51.398 ë, 30.480 m |
| Line Loss (matched) | 2.626 dB |
| ã | 3.024e-3+j3.229e+0 |
| k1, k2 | 1.201e-6, 3.144e-12 |
| Loss model source data frequency range | 30.000 MHz - 2500.000 MHz |
| Correlation coefficient (r) | 0.999841 |
Scenario 3: 1200 MHz
1200MHz Coax Loss Calculation 1
| Parameters | |
| Transmission Line | 10D-FB |
| Code | 10D-FB |
| Data source | DUMEI |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.01 Ù |
| Velocity Factor | 0.851 |
| Length | 51808.83 °, 143.913 ë, 30.480 m |
| Line Loss (matched) | 4.053 dB |
| ã | 4.666e-3+j9.042e+0 |
| k1, k2 | 8.854e-7, 8.146e-12 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999607 |
1200MHz Coax Loss Calculation 2
| Parameters | |
| Transmission Line | 8D-FB |
| Code | 8D-FB |
| Data source | DUMEI |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.02 Ù |
| Velocity Factor | 0.851 |
| Length | 51808.83 °, 143.913 ë, 30.480 m |
| Line Loss (matched) | 5.109 dB |
| ã | 5.882e-3+j9.042e+0 |
| k1, k2 | 1.177e-6, 8.506e-12 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999706 |
1200MHz Coax Loss Calculation 3
| Parameters | |
| Transmission Line | 5D-FB |
| Code | 5D-FB |
| Data source | DUMEI |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.03 Ù |
| Velocity Factor | 0.851 |
| Length | 51808.84 °, 143.913 ë, 30.480 m |
| Line Loss (matched) | 7.383 dB |
| ã | 8.500e-3+j9.042e+0 |
| k1, k2 | 1.778e-6, 1.007e-11 |
| Loss model source data frequency range | 1.000 MHz - 1900.000 MHz |
| Correlation coefficient (r) | 0.999841 |
1200MHz Coax Loss Calculation 4
| Parameters | |
| Transmission Line | Belden 8267 (RG-213/U) |
| Code | B8267 |
| Data source | Belden |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.02 Ù |
| Velocity Factor | 0.660 |
| Length | 66723.49 °, 185.343 ë, 30.480 m |
| Line Loss (matched) | 9.293 dB |
| ã | 1.070e-2+j1.165e+1 |
| k1, k2 | 1.807e-6, 2.510e-11 |
| Loss model source data frequency range | 1.000 MHz - 4000.000 MHz |
| Correlation coefficient (r) | 0.999842 |
1200MHz Coax Loss Calculation 5
| Parameters | |
| Transmission Line | Belden 8268 (RG-214/U) |
| Code | B8268 |
| Data source | Belden |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.02 Ù |
| Velocity Factor | 0.660 |
| Length | 66723.50 °, 185.343 ë, 30.480 m |
| Line Loss (matched) | 8.846 dB |
| ã | 1.018e-2+j1.165e+1 |
| k1, k2 | 1.791e-6, 2.186e-11 |
| Loss model source data frequency range | 1.000 MHz - 4000.000 MHz |
| Correlation coefficient (r) | 0.998846 |
1200MHz Coax Loss Calculation 6
| Parameters | |
| Transmission Line | Belden 9913 |
| Code | B9913 |
| Data source | Belden |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.02 Ù |
| Velocity Factor | 0.841 |
| Length | 52425.60 °, 145.627 ë, 30.480 m |
| Line Loss (matched) | 5.071 dB |
| ã | 5.838e-3+j9.150e+0 |
| k1, k2 | 1.127e-6, 9.636e-12 |
| Loss model source data frequency range | 1.000 MHz - 4000.000 MHz |
| Correlation coefficient (r) | 0.999776 |
1200MHz Coax Loss Calculation 7
| Parameters | |
| Transmission Line | RG-58A/U |
| Code | RG-58A/U |
| Data source | DSE |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.01 Ù |
| Velocity Factor | 0.660 |
| Length | 66723.49 °, 185.343 ë, 30.480 m |
| Line Loss (matched) | 24.530 dB |
| ã | 2.824e-2+j1.165e+1 |
| k1, k2 | 3.943e-6, 9.010e-11 |
| Loss model source data frequency range | 50.000 MHz - 1000.000 MHz |
| Correlation coefficient (r) | 0.999926 |
1200MHz Coax Loss Calculation 8
| Parameters | |
| Transmission Line | RG-8/U |
| Code | RG-8/U |
| Data source | DSE |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 52.00-j0.01 Ù |
| Velocity Factor | 0.660 |
| Length | 66723.49 °, 185.343 ë, 30.480 m |
| Line Loss (matched) | 10.034 dB |
| ã | 1.155e-2+j1.165e+1 |
| k1, k2 | 1.819e-6, 3.093e-11 |
| Loss model source data frequency range | 50.000 MHz - 1000.000 MHz |
| Correlation coefficient (r) | 0.998211 |
1200MHz Coax Loss Calculation 9
| Parameters | |
| Transmission Line | Times Microwave LMR-400 |
| Code | LMR-400 |
| Data source | TMS |
| Frequency | 1204.000 MHz |
| Length | 100.000 ft |
| Results | |
| Zo | 50.00-j0.02 Ù |
| Velocity Factor | 0.851 |
| Length | 51808.83 °, 143.913 ë, 30.480 m |
| Line Loss (matched) | 4.547 dB |
| ã | 5.235e-3+j9.042e+0 |
| k1, k2 | 1.201e-6, 3.144e-12 |
| Loss model source data frequency range | 30.000 MHz - 2500.000 MHz |
| Correlation coefficient (r) | 0.999841 |
G/T-Comparisson List of VE7BQH for 2m-Yagis
G/T Simulations by VE7BQH, Issue 58, 12-May-2007
G/T is an important figure-of-merit for the antenna's overall receive performance, because it balances forward gain (G) against received thermal noise (T).
Here you will find information on how antennas behave when stacked. The antennas found in the table are the ones currently used by people on EME. For an antenna to qualify for a place in the table it must have been built by someone, antennas that only live as computer files are not accepted.
TYPE OF L GAIN E H Ga Tlos Ta G/T
ANTENNA (WL) (dBd) (M) (M) (dBd) (K) (K)
W1JR 8 MOD 1.80 11.17 3.09 2.76 17.15 3.04 266.57 -4.96 DJ9BV 1.8 1.81 11.38 3.16 2.80 17.31 3.16 267.12 -4.81 YU7EF 8 1.87 11.28 3.02 2.69 17.22 4.47 253.52 -4.68 BQH8B 1.88 11.66 3.29 2.98 17.67 4.96 263.60 -4.39 I0JXX 8 2.04 12.16 3.46 3.17 18.18 11.33 267.91 -3.95 DK7ZB 8 2.09 12.15 3.41 3.12 18.08 4.34 260.41 -3.93 M2 9 2.12 12.08 3.34 3.04 18.08 8.77 254.38 -3.83 DJ9BV 2.1 2.14 11.92 3.33 3.04 17.92 4.66 260.72 -4.10 *OZ5HF 9 2.16 11.75 2.70 2.50 17.21 2.95 264.46 -4.87 OZ5HF 9 2.16 11.75 3.25 2.96 17.71 2.99 262.13 -4.33 YU7EF 9 2.16 11.86 3.18 2.87 17.79 3.23 243.83 -3.94 F9FT 11 2.17 11.71 3.27 2.97 17.70 5.21 262.64 -4.35 *CC 13B2 2.17 11.83 2.90 2.79 17.67 4.40 256.63 -4.28 CC 13B2 2.17 11.83 3.33 3.04 17.83 4.46 263.15 -4.23 *CC 215WB 2.19 11.86 3.05 3.05 17.80 4.34 286.14 -4.62 CC 215WB 2.19 11.86 3.48 3.19 17.87 4.40 287.83 -4.58 RA3AQ-9 2.35 12.34 3.40 3.11 18.30 4.45 238.76 -3.33 #RA3AQ-9 2.35 12.34 3.26 3.26 18.37 4.44 240.91 -3.30 Eagle 10 2.38 12.28 3.44 3.15 18.29 6.07 249.46 -3.54 DK7ZB 9 2.39 12.49 3.62 3.35 18.53 4.93 262.30 -3.51 *Flexa 224 2.49 11.90 3.50 3.30 18.01 8.29 264.66 -4.07 Flexa 224 2.48 11.90 3.30 3.31 17.87 8.32 257.77 -4.10 K5GW 10 2.49 12.57 3.45 3.16 18.53 5.72 241.20 -3.15 #K5GW 10 2.49 12.57 3.30 3.30 18.58 5.76 242.35 -3.12 K1FO 12 2.53 12.49 3.46 3.18 18.44 3.51 245.43 -3.31 YU7EF 10 2.54 12.48 3.38 3.09 18.42 4.72 233.43 -3.12 *YU7EF 10 2.54 12.48 3.35 3.15 18.44 4.72 233.82 -3.10 I0JXX 12 2.68 12.69 3.59 3.32 18.68 4.45 247.49 -3.11 BQH 12J 2.80 12.82 3.66 3.40 18.85 3.09 252.88 -3.03 #BQH 12J 2.80 12.82 3.53 3.53 18.88 3.06 252.93 -3.06 *M2 12 2.84 12.79 3.05 3.05 18.59 5.19 237.40 -3.02 M2 12 2.84 12.79 3.48 3.21 18.71 5.15 237.98 -2.91 BQH 10 2.86 13.07 3.70 3.44 19.05 6.59 240.48 -2.62 #BQH 10 2.86 13.07 3.57 3.57 19.11 6.56 242.58 -2.59 DK7ZB 10 2.87 13.19 3.89 3.65 19.20 5.94 259.91 -2.80 YU7EF 11B 2.87 12.90 3.55 3.28 18.85 4.18 239.00 -2.62 WB9UWA 12 2.90 12.82 3.45 3.17 18.73 6.93 227.71 -2.70 BQH 13 2.92 13.09 3.69 3.44 19.07 3.92 241.77 -2.62 #BQH 13 2.92 13.09 3.57 3.57 19.11 3.95 243.09 -2.60 *M2 20 XPOL 2.97 13.19 3.65 3.65 19.20 6.74 252.79 -2.68 #M2 20 XPOL 2.97 13.19 3.65 3.65 19.20 6.74 252.79 -2.68 M2 20 XPOL 2.97 13.19 3.77 3.52 19.16 6.77 251.00 -2.69 *BVO-3WL 3.00 13.50 3.90 3.70 19.48 5.35 264.59 -2.60 BVO-3WL 3.00 13.50 4.01 3.77 19.49 5.38 266.39 -2.62 #BVO-3WL 3.00 13.50 3.89 3.89 19.52 5.45 265.97 -2.58 YU7EF 11 3.04 13.07 3.56 3.30 18.99 3.32 226.79 -2.42 *CD15LQD 3.11 12.87 4.00 3.80 18.96 4.57 261.85 -3.08 CD15LQD 3.11 12.87 3.68 3.42 18.86 4.49 259.53 -3.14 CD15LQD MOD 3.11 13.24 3.83 3.58 19.24 3.73 253.86 -2.66 MBI FT17 3.12 13.34 3.84 3.59 19.31 6.02 246.36 -2.46 *CC3219 3.14 12.66 4.27 3.66 18.64 4.62 349.69 -4.65 CC3219 3.14 12.66 4.05 3.80 18.65 4.65 354.61 -4.70 CC3219 MOD 3.14 13.32 3.91 3.67 19.32 3.74 258.52 -2.66 *F9FT 17 3.15 12.87 3.68 3.50 18.92 5.74 243.96 -2.81 F9FT 17 3.15 12.87 3.57 3.30 18.84 5.74 240.69 -2.83 DJ9BV 3.2 3.22 13.36 3.85 3.58 19.34 3.99 246.42 -2.42 K1FO 14 3.25 13.36 3.78 3.54 19.30 4.26 243.48 -2.42 MBI 3.4 3.41 13.69 3.88 3.63 19.63 7.68 235.12 -1.94 YU7EF 12 3.49 13.67 3.83 3.58 19.60 4.40 224.97 -1.78 *SM5BSZ 11 3.51 13.86 3.50 3.50 19.71 3.16 232.02 -1.80 SM5BSZ 11 3.51 13.86 3.96 3.72 19.79 3.13 238.58 -1.84 *SM5BSZ 11A 3.52 13.97 4.00 4.00 19.96 3.13 244.17 -1.77 SM5BSZ 11A 3.52 13.97 4.05 3.81 19.91 3.07 244.00 -1.82 17LQD EKM 3.59 13.37 3.83 3.59 19.35 4.57 252.49 -2.53 17LQDE BQH 3.59 13.79 4.04 3.81 19.77 3.95 248.40 -2.04 DJ9BV 3.6 3.61 13.73 4.00 3.77 19.64 4.25 258.21 -2.33 K1FO 15 3.65 13.78 3.94 3.70 19.70 3.33 238.55 -1.93 DK7ZB 12 3.83 14.25 4.30 4.08 20.26 5.69 250.62 -1.64 YU7EF 13 3.92 14.09 4.01 3.77 20.03 5.13 222.70 -1.30 DJ9BV OPT 3.99 14.22 4.29 4.08 20.18 4.99 248.48 -1.63 #DJ9BV OPT 3.99 14.22 4.19 4.19 20.21 5.03 247.16 -1.57 #SV 2SA13 4.01 14.46 4.20 4.20 20.44 4.67 246.84 -1.34 SV 2SA13 4.01 14.46 4.37 4.16 20.43 4.67 247.35 -1.36 DJ9BV 4.0 4.02 14.07 4.15 3.92 19.98 5.67 255.50 -1.95 HG215DX 4.02 14.20 4.25 4.03 20.14 6.44 258.47 -1.84 CC3219 MOD 4.05 14.20 4.34 4.13 20.17 4.28 256.17 -1.77 *CC4218XL 4.15 14.14 4.08 3.85 20.03 7.25 265.93 -2.07 CC4218XL 4.15 14.14 4.45 4.23 20.11 7.17 266.22 -2.00 WB9UWA 15 4.18 13.62 3.69 3.43 19.48 8.00 214.69 -1.69 CC4218 MOD 4.18 14.29 4.24 4.02 20.24 5.25 244.97 -1.51 YU7EF 14 4.37 14.58 4.23 4.00 20.51 4.63 223.20 -0.83 K1FO 17 4.41 14.44 4.22 4.00 20.35 4.34 234.51 -1.21 DJ9BV 4.4 4.42 14.36 4.28 4.06 20.25 6.19 256.51 -1.70 SHARK 20 4.46 14.39 4.32 4.10 20.26 2.90 264.04 -1.81 I0JXX 16 4.47 14.39 4.17 3.94 20.32 6.09 223.60 -1.03 #I0JXX 16 4.47 14.39 4.06 4.06 20.35 6.11 223.23 -0.99 *CC17B2 4.51 14.53 3.66 3.51 20.22 4.83 233.29 -1.31 CC17B2 4.51 14.53 4.28 4.06 20.47 4.99 234.82 -1.08 DK7ZB 14 4.71 15.04 4.73 4.54 21.02 6.90 245.10 -0.73 K1FO 18 4.77 14.72 4.35 4.14 20.63 4.54 234.66 -0.93 *M2 28 XPOL 4.80 15.22 4.50 4.50 21.14 17.04 258.67 -0.84 #M2 28 XPOL 4.80 15.22 4.76 4.76 21.22 17.15 257.77 -0.76 M2 28 XPOL 4.80 15.22 4.86 4.66 21.19 17.11 257.51 -0.77 HG217DX 4.82 14.81 4.63 4.43 20.78 8.14 256.05 -1.16 DJ9BV 4.8 4.83 14.65 4.40 4.18 20.57 5.85 255.84 -1.37 *M2 5WL 4.83 14.80 4.15 3.84 20.56 8.49 254.92 -1.36 M2 5WL 4.83 14.80 4.56 4.35 20.74 8.70 251.18 -1.11 YU7EF 15 4.84 14.98 4.44 4.23 20.92 4.89 221.29 -0.38 *SM5BSZ 14A 4.89 15.14 4.00 4.00 20.93 4.33 232.02 -0.58 SM5BSZ 14A 4.89 15.14 4.54 4.33 21.03 4.43 238.02 -0.59 RA3AQ-15 4.92 15.14 4.67 4.48 21.10 4.42 239.26 -0.54 #RA3AQ-15 4.92 15.14 4.56 4.56 21.12 4.43 239.19 -0.52 *SM5BSZ 14 4.95 15.29 5.20 5.20 21.37 3.13 246.72 -0.41 SM5BSZ 14 4.95 15.29 4.72 4.51 21.19 3.02 233.77 -0.68 SM2CEW 19 4.98 14.91 4.47 4.26 20.84 9.38 233.77 -0.70 #SM2CEW 19 4.98 14.91 4.37 4.37 20.87 9.00 232.88 -0.66 *BVO-5WL 5.02 15.05 4.58 4.40 20.99 5.21 243.42 -0.73 #BVO-5WL 5.02 15.05 4.59 4.59 21.04 5.24 242.36 -0.66 BVO-5WL 5.02 15.05 4.69 4.49 21.01 5.23 242.70 -0.70 K5GW 17 5.06 14.99 4.64 4.44 20.96 6.16 244.55 -0.78 K1FO 19 5.18 15.01 4.47 4.27 20.92 4.04 232.19 -0.59 #RU1AA 15 5.27 15.55 4.85 4.85 21.55 6.02 235.76 -0.03 RU1AA 15 5.27 15.55 4.85 4.65 21.50 5.99 236.28 -0.09 *M2 18XXX 5.32 15.07 4.27 3.96 20.85 7.90 243.30 -0.87 M2 18XXX 5.32 15.07 4.55 4.35 21.01 7.95 240.56 -0.66 YU7EF 16 5.42 15.22 4.49 4.28 21.10 5.41 223.39 -0.25 M2 32 XPOL 5.62 15.70 5.23 5.04 21.69 15.02 250.74 -0.16 #M2 32 XPOL 5.62 15.70 5.13 5.13 21.71 15.04 251.20 -0.15 *M2 19XXX 5.73 15.41 4.27 4.04 21.15 8.75 238.80 -0.49 M2 19XXX 5.73 15.41 4.70 4.51 21.36 8.75 235.52 -0.22 #M2 32 XPOL 5.73 15.88 5.07 5.07 21.87 16.03 248.46 +0.06 M2 32 XPOL 5.73 15.88 5.16 4.98 21.84 16.03 248.11 +0.04 DK7ZB 17 5.81 15.69 5.16 4.98 21.68 6.16 234.46 +0.12 YU7EF 17 5.87 15.78 4.84 4.64 21.68 5.29 229.75 +0.21 #YU7EF 17 5.87 15.78 4.74 4.74 21.71 5.31 229.47 +0.25 BVO-6WL 6.00 15.69 4.75 4.93 21.63 5.12 231.63 +0.13 #BVO-6WL 6.00 15.69 4.84 4.84 21.66 5.13 231.84 +0.15 AF9Y 22 6.15 15.75 5.04 4.86 21.72 10.04 230.73 +0.23 RA3AQ-18 6.28 16.11 5.13 4.96 22.05 4.97 227.80 +0.62 *RA3AQ-18 6.28 16.11 5.30 5.30 22.13 4.99 227.28 +0.71 #RA3AQ-18 6.28 16.11 5.05 5.05 22.08 4.98 227.31 +0.64 DK7ZB 19 6.58 16.17 5.39 5.22 22.16 7.63 236.90 +0.56 MBI 6.6 6.6 16.14 5.46 5.29 22.14 13.09 238.73 +0.51 #MBI 6.6 6.6 16.14 5.38 5.38 22.17 13.07 239.28 +0.53 BQH 25 7.29 16.31 5.22 5.04 22.25 9.83 224.18 +0.89 #BQH 25 7.29 16.31 5.13 5.13 22.28 9.86 224.61 +0.91 K2GAL 21 7.65 16.80 5.75 5.59 22.75 19.58 245.81 +0.99 M2 8WL(old) 7.71 16.55 5.28 5.10 22.40 9.52 231.46 +0.90 M2 8WL(new) 8.05 17.05 5.82 5.67 23.01 11.53 237.20 +1.40
Legend:
L = Length in Wavelengths
Gain = Gain in dBd of a single antenna
E = E plane (Horizontal) stacking in Meters.
H = H plane (Vertical) stacking in Meters.
Ga = Gain in dBd of a 4 bay array
Tlos = The internal resistance of the antenna in degrees Kelvin.
Ta = The total temperature of the antenna or array in degrees Kelvin. This
includes all the side lobes, rear lobes and internal resistance of the
antenna or array.
G/T = Figure of merit used to determine the receive capability of the antenna
or array = (Ga + 2.15) - (10*log Ta). The more positive figure the
better. Notes:
1. The Program used to calculate E/H Stacking,G,Ga and G/T is YAGI
ANALYSIS 3.54 by Goran Stenberg,SM2IEV.
2. Temperatures used: Tsky=200 degrees;Tearth=1000 degrees
3. All dipoles have been adjusted to give a J of under +/- .5
4. No stacking harness losses or H frame effects are included in the
gain figures.
5. All stacking dimensions EXCEPT those marked with a "*" and "#" are
calculated from the DL6WU stacking formula.
6. Antennas marked with a "*" have stacking dimensions recommended by
the manufacturer or designer.
7. Antennas marked with a "#" have stacking dimensions for XPOL
antennas by VE7BQH.
8. Antennas marked with a "@" have some or all 10MM elements. All others
are 4MM to 6MM.
9. Manufacturer/Designer Legend:
AF9Y = AF9Y I0JXX = I0JXX
BVO = Eagle/DJ9BV K1FO = K1FO
BQH = VE7BQH K2GAL = K2GAL
CC = Cushcraft K5GW = Texas Towers/K5GW
CC MOD = VE7BQH M2 = M^2
CD = CUE DEE MBI = F/G8MBI
CD MOD = VE7BQH OZ5HF = Vargarda
DJ9BV = DJ9BV RA3AQ = RA3AQ
DJ9BV OPT = DJ9BV RU1AA = RU1AA
DK7ZB = DK7ZB SHARK = SHARK (Italian)
EKM MOD = SM2EKM SM2CEW = SM2CEW/VE7BQH
F9FT = F9FT SV = Svenska Antennspecialisten AB
HG = HYGAIN W1JR = VE7BQH (Mininec error)
Flexa = FlexaYagi WB9UWA = WB9UWA
YU7EF = YU7EF LIONEL H. EDWARDS
VE7BQH
Issue 58 May 12, 2008
Issue 51: Add YU7EF Antennas
Issue 52: Update all DK7ZB antennas to latest published data. Add DK7ZB 8
Issue 53: Replace BQH8A with BQH8B a 50 ohm antenna
Issue 54: Add YU7EF 8
Issue 55: Add YU7EF 17 & YU7EF 11B
Issue 56: Add YU7EF 16
Issue 57: Add a revised YU7EF 10
Issue 58: Add DK7ZB 19
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