My first 50MHz Linear Amplifier - NAGAI NAG-50XL.
|
 The NAIGAI NAG-50XL was the first 50MHz linear that I ever owned, back in the early 1980s. This Japanese made tube linear was built for 50MHz and employed a pair of RCA 6146 tubes. Max drive was 10 watts for 100 watt output. The linear was sold to me by Klaus, VS6FX together with a Trio TS-600.
|
HARDXA 2M & 70cm Field Days in the 1990's
The following are some old photographs of our club propagation tests field days
up a Tate's Cairn in the 1990's for 2 meters and 70 centimeters to BV (Taiwan)
and JA (Japan).
Photo 1:
2 Meter band and 6 Meter Band Yagi Uda Antennas up at Tates Cairn with looming thunder clouds
overhead.
Photo 2:
The 2 Meter Yagi Uda up at Tates Cairn pointed towards Japan.
Photo 3:
HF Vertical Antenna comprising of a Fritzel GPA-30 for 10/15 & 20 Meters.
Photo 4:
Overall view of HF, 2M and 6M antenna. Base Camp can just be seen below.
Photo 5:
Setting up of Base Camp for the Propagation Tests.
Photo 6:
Base Camp slowly taking shape.
Photo 7:
The "Continental" Sleeping Quarters???
Photo 8:
Pass the Mosquito Repellant!
Photo 9:
Time out under the 430 MHz array.
Photo 10:
You can tell I had a rough night of operating.
VHF / UHF DX TV Reception.
Equipment: Likone 6" Color Monitor
Standard: Various PAL & SECAM
Bands VHF Low Channel 2 to 5
VHF Hi Channel 5 to 13
UHF 20 to 69
VHF Low Band: VHF High Band:
Channel Frequency (MHz) | Channel Frequency (MHz)
2 54-60 7 174-180
3 60-66 8 180-186
4 66-72 9 186-192
10 192-198
5 76-82 11 198-204
6 82-88 12 204-210
13 210-216
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chan Freq (MHz) | Chan Freq (MHz) | Chan Freq (MHz) | Chan Freq (MHz)
14 470-476 | 32 578-584 | 50 686-692 | 68 794-800
15 476-482 | 33 584-590 | 51 692-698 | 69 800-806
16 482-488 | 34 590-596 | 52 698-704 | 70 806-812
17 488-494 | 35 596-602 | 53 704-710 | 71 812-818
18 494-500 | 36 602-608 | 54 710-716 | 72 818-824
19 500-506 | 37 608-614 | 55 716-722 | 73 824-830
20 506-512 | 38 614-620 | 56 722-728 | 74 830-836
21 512-518 | 39 620-626 | 57 728-734 | 75 836-842
22 518-524 | 40 626-632 | 58 734-740 | 76 842-848
23 524-530 | 41 632-638 | 59 740-746 | 77 848-854
24 530-536 | 42 638-644 | 60 746-752 | 78 854-860
25 536-542 | 43 644-650 | 61 752-758 | 79 860-866
26 542-548 | 44 650-656 | 62 758-764 | 80 866-872
27 548-554 | 45 656-662 | 63 764-770 | 81 872-878
28 554-560 | 46 662-668 | 64 770-776 | 82 878-884
29 560-566 | 47 668-674 | 65 776-782 | 83 884-890
30 566-572 | 48 674-680 | 66 782-788 |
31 572-578 | 49 680-686 | 67 788-794 |
Internet Links
My Amateur Radio Blogspot:
http://vr2xmq-stevesblog.blogspot.com/
Organisations:
HARDXA Home Site: http://www.qsl.net/vr2dxa/
RSGB Home Site: http://www.rsgb.org/
ARRL Home Site: http://www.arrl.org/
WIA Home Site: http://www.wia.org.au/
JARL Home Site: http://www.jarl.or.jp/English/
DARC Home Site: http://www.darc.de/
AMSAT UK: http://www.uk.amsat.org/
AMSAT US: http://www.amsat.org/amsat-new/index.php
UKSMG: http://www.uksmg.org/news.php
SIX ITALIA: http://www.sixitalia.org/
NO CODE INTERNATIONAL: http://www.nocode.org/
OFTA: http://www.ofta.gov.hk/en/index.html
DX Clusters:
DX Summit: http://oh2aq.kolumbus.com/dxs/
50Mhz Propagation Logger: http://dxworld.com/50prop.html
DXScape: http://www.dxscape.com/
DXWatch: http://www.dxwatch.com/dx
eHam DX Cluster: http://www.eham.net/DX/
RadioCQ Cluster: http://www.radiocq.com/
ODXC: http://dx.obninsk.org/
50MHz DX Cluster: http://www.qsl.net/pe1dh/dx50.html