With Airscout plane feeds becoming increasingly difficult to rely on, even if registered with Opensky, I tried an ADS-B receiver of my own just as an experiment. Using an RTL-SDR.com dongle and a simp

Thank you to all who have registered for the Microwave Round Table on 16th April, we have about 65 attending at the last count. There is still time to register for the Round Table, the cut off date fo

An online search has failed to find any information about this device. I’d be grateful for any help in getting hold of a specification. Many thanks, 73, Martin GM8IEM – IO78HF

GM uW Folk On Wednesday I was busy updating the local 70cm voice Repeater (GB3TF) in its attic location (IO82RP) in Little Wenlock, Shrops.. Today I cannot hear the 13cm Bcn GB3ZME (2032.870 MHz). Eit

Attached plot of GB3ZME on 6cm - good RS at moment ( light rain-v windy) using my 60cm offset at 7m on mast , 66m asl , in IO80XS77JR ,Dorset . 73 John G0API

Hi Ben, I try playing with a 10ghz and 200mw since mai 2022. During last year I made 239 QSO with it and 7 dxcc, odx Rain scatter 750kms... Finally the measurements shown 160mw at the maximum 😉 The on

Dear All, I have a PST2051D, which has developed a fault. Angular readout is incorrect, both on the controller display and remotely via ethernet board, and drifts by large amounts, many 10s of degrees

Some of you may recall that right at the start of 2021 I expressed an interest in getting on 10GHz as a foundation licence holder, it being a band I was licenced to use but not exactly 'readily availa

hi All, I was wondering if anyone has used the out of spec GaAs fets from J. Birkett on 70cm and 23cms ? Not the "black spot" or "red spot" but the gold type ? (eg,,, no spot) About 20 years ago I bui

Today I took delivery of some military surplus radar kit. It is WR90 waveguide and reputedly it was a ground based radar in ~10 GHz and at one time in use with the Dutch army. Given that it is of Brit

Hello all, before I start trying to diagnose an intermittent problem with the IF returning to RX after TX on my MKU 13 G3 can I ask if anyone has experienced a similar problem? The ‘cure’ is to activa

Good information all around here. I hadn't properly considered Lehane's point earlier. These CPM20/CPM46 may be generally user-unrepairable for internals, unlike some older, larger gear with greater d

Now that I have a functional 10 GHz station in the attic, and due to severe to profound hearing loss in both ears, I would like to add digital modes to the station. Here is the 10 GHz station equipmen

There's several Marconi/IFR CPM20 online, some going quite cheaply. As I lack a microwave frequency counter and also a power meter for my modern Marconi sensors and cable, it seems a good fit. Apparen

Stupidly I have blown up the SMA load fro my NanoVNA. I put accidentally about 20W into it. It blew instantly. Does any one have any spares I could purchase? It is just the load I need. Neil G3RIR

I have had several enquiries about kits for the high power harmonic filter described here: https://www.qsl.net/g3xdy/QRO%2023cm%20Harmonic%20Filter%20and%20Reflectometer.htm At present I don't have an

GB3KBQ went off air in the middle of August 2022 and it was hoped that it would return to the original site however the land owner decided 35 years was enough. A new site was found and negotiations ar

Bit of a tight deadline (Tuesday) due to my holidays. Any input / ideas by Monday morning will be appreciated as usual. 73 John

We are also looking for a volunteer to conduct an independent examination or audit of the Group’s accounts at year end in order to provide third-party assurance to members that the accounts are free f

Apart from the things I should be doing, but am distracted from doing ... I have been working on control software to drive my military dish and mount. This has involved much beating with hammers and d