Hi all - I have been using one of Kent's Log Periodic antennas as feed for a 13+9 cm dish for some years now. As I run power on both bands (240W on 13cm and 80W on 9 cm, unfortunately only half at the

Hi this morning a 47GHz qso was achieved from JN01MF to IM98WQ at a distance of 303km in SSB. The stations have been EA5CV, EA5JF, EA5DOM on the EA5 side with EA3HMJ and me EB3FRN on the EA3

Now dealing with it.... Sam Sent from Yahoo Mail for iPad

Ok I'll contact Sam and see if I can purchase one, as to cooking the antenna it's likely to be used on SSB and some DATV so I'll let you know hi. Once again thanks for the advice. Cheers John

Since I gave Sam an handful just a few weeks ago, he should have the 1.5-15's. And at reduced performance they do work down to 800 MHz. Wish I had enough power to test them to destruction. 50 watts of

Hi Kent thanks for a very informative reply I have one of your log periodic pcb antenna's so will give that a try. I see G4DDK does not stock your 1.5 to 15Ghz Vivaldi antenna, is there any likely

Log Periodics do work well as a dish feed. I agree, not quite as well as an optimized scalar feed, but the difference is about 1 dB on a small dish. And you get 3 or 4 ham bands. The feedpoint of a

Ok thanks Chris, it's looking more and more likely that I'll have to make separate feeds and just have to swap to change band. It started off as a nice easy option for multi band portable use but

Hello John In a word, I'd suggest no. The 'ring' feed will have too great a beamwidth to feed an offset dish with a 0.6 - 0.7f/D ratio efficiently. That will result in spillover

just came across this site which has a multi band ring feed http://gvnweb.ddns.net:8081/dish1.html and links to some design software as well. the only thing is this is used on a prime focus dish are

Thanks to those who have replied I'm guessing I'll just have to test the length of 250 and just see, but guess the losses may be too high. I'd still like to know if anyone else uses a dish this size

Andy, I found in the hardcopy Radcom and the Electronic Compass Module article. I like your two-wire interface with optional polarity. I have used PICs in the past, but I may go posh and try

This is off-topic, though I think members of this group are the most likely to be able to help with data for a Hatfield Instruments Coaxial relay type 2701/2/6. This appears to be a 6-way coaxial

Hi Andy, Jim's right, it would have been one of us. Various info on Marks website, and I still have some. 73 David

Andy Try GM6BIG and or GM4ISM Regards Jim,GI1CET Sent from TypeApp

Asking here on behalf of G3PLXBoth Peter and I have forgotten who it was who supplied the old Trimble Palisade GSP receivers. It was a GM station, but beyond that ... He needs some information on it

I had a similar experience once with GB3SCK. In a period of heavy rain, I pointed a small horn, 18dBi ish, out of the window vaguely at the rooftop ridges in the beacon direction. Set WSJT running

I've just come back from a Saturday afternoon walk. Out towards the east and North Sea there is a very distinct 'smokey looking' layer above the horizon. There could be a a duct out there. I'm not in

Thanks for the information on 24ghz John ....looking to get active on 24ghz from JO01JN this summer ...so you may have someone else to work ....outside of a contest !! Also noticed on beaconspot that

Since 1114 UTC today,and despite no visible trace whatsoever on the WSJT-X waterfall display I've been getting continuous, averaged decodes from GB3PKT's 24GHz JT4G signal via "Drizzle scatter" :-)