The GM3WOJ personal 10 GHz beacon is back on after an absence of a couple of months due to a power supply fault. It is on 10368.400 MHz. Further details are at: https://gm8bjf.joomla.com/articles/3-th

The website is now open for bookings. It is at http://www.gmroundtable.org.uk/ To book a place follow the link in the right hand side bar "Links to forms" and it will take you to the booking page. The

I have been using one of the "green PCBs" with the ADF5355. I agree with Neil the the layout is possibly not quite ideal. It is also on double sided 1.6 mm FR4 so the there will be some losses and imp

Hi Dave, Attached is my hacked version of the OZ4M arduino sketch for the ADF5355. Don't worry about the odd frequency have it programmed for. It is for using an Endwave unit on 24048.080 MHz as a per

Dave, I have been building a personal beacon for 24G using an ADF5355. I have been using the AD demo software to test it with a Cypress USB to SPI adapter board. That is good for checking out the boar

Hi Martin, I am the beacon keeper for EDN. At present it is running on the old hardware which just sends its call sign. The newer RDDS hardware has been having some problems in that it tends to drift

The ones I bought came from here and I am happy with them. Maybe I was lucky! http://www.ebay.co.uk/itm/331930492156?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT 73s Brian GM8BJF.

OK. That one should work. It looks like a Geeetech.com one. The important thing is that they use the Cypress chip as that it the one that is compatable with the AD drivers. Like the call sign! 73s Bri

Well done on the chip change. I recently bought three of these boards, one with an ADF4350 and two with ADF4351s. Perhaps I was lucky but all seemed to function as expected. Their PN performance is as

I have a piece about controlling AD$XXX synthesiser chips with the AD demo software on my website. See: https://gm8bjf.joomla.com/2-uncategorised/9-pc-control-of-analog-devices-adf4xxx-synthesiser-chi

Hi Andy, Barry and Mark, I can see Mark's suggestion will be good enough for most practical cases, but as I teach this stuff I have to show the students how to do it "properly", ;-) . By the time the

Hi Andy, I get involved in this a bit. I have always read off the impedance/admittance and re-normalised. I have never come across the procedure you suggest. I do this fairly regularly to design quart

I am glad people are keeping an eye out for it. Currently I am registered on Beaconspot.eu to get notification of any spots. I forward them onto Graham. I had become concerned that it was still on as

It being a nice day yesterday Briain GM8PKL and myself took ourselves out to Telegraph Hill (IO85UW) near St Abb's head to listen for the signal from GM8FFX (IO87WB) on 10,368.450 MHz.The signal was 5

We have just reinstated the 10G GM3WOJ personal beacon and it is back on the air. The Tx has been re-built in a lighter box and is now about 15 M AGL and about 5 m higher than the previous location. I

Hi John, Just worked Alan GM0USI/P in IO75OR 99.1 km on 24 GHZ. First QSO for 2016! I am in IO85JV. (Edinburgh). 73s Brian GM8BJF

Thanks Roger that is useful. Save me going up a blind alley! 73s Brian, GM8BJF.

Just a note to say that the GM3WOJ 3 cm personal beacon is off the air until further notice. Chris switched it off today. A problem has occurred with a birch tree growing up in front of the dish over

Does anybody on the group know if the Eyal Gal 10.4 GHz units that were on EBay can be used with high side LO injection? eg 10368 - 10800 = -432 to give a reverse tuning IF on 432. I am unsure it thes

Yesterday Alan GM0USI and I went to Gatehouse (IO74WV) and had contacts on 24 GHz with Tony G(W)4CBW in IO83HH near Prestatyn. Signals were 59 each way and we ended up working on FM. There appeared to