As much as I prefer to make my own PCBs, it's about time I tested out the low volume low cost commercial jobbies. So I've laid out a test board (*), digital and audio frequencies, ready to give one of

I'm selling working test equipment used by the late G8CMU. Test equipment like ... HP 8657A 0.1-1024MHz signal generator HP 8569B 0.01 - 22GHz spectrum analyser HP 8754A network analyser HP 8748A S-pa

I am at a military vehicle show in IO91UD & for thast 2 days have been monitoring GB3SEE which has been very strong. At about 1615 it went off air, I can hear no other beacons in this rather screened

I've been contacted by one person who bought one of the 40MHz OCXO boards from me at RAL. The osillator had no output, this has been resolved to his satisfaction. If anyone lese bought one and the osc

Good morning, Newly registered on this list, i wanted to introduce myself to you. Michel F1src, I have been using hypers for a few years now, first with the 6 cm, now I'm building a 3 cm transverter a

At the recent Newbury rally I picked up this X Band Milliwattmeter. Other than Z4/00000-08166 there is no maker/model number (unless it’s beneath the handwritten cal sticker). I’m guessing it’s Ex MOD

Hi, I haven't heard the GB3LEX beacon for nearly a week now. Normally it is around S1-2. Can anyone confirm that is is running ok at the same strength normally received. The last spot on BeaconSpot wa

The LDMOS device PD85004 as used in my 70 and 23cm 3W driver board kits is now obsolete and no stock has been available anywhere for around 2 years. I now have around 15 devices remaining so order the

Hi All I have a couple of Plisch '50W' analogue TV amplifiers available + spares tubes and accessories, free to a good home. It is reported that powers in excess of 300W can be achieved at 23cm with t

I have a waveguide directional coupler I am not using. It looks like it was part of some test setup, as someone has put it in a wooden frame. Make me an offer if interested. -- Dr. David Kirkby, Kirkb

I was using this 1980s vintage Spec An. to measure the frequency my iPhone was putting out. PCB yagi on SA, phone held near it. My provider is Three, which according to one frequency listing dating ba

I have a number of relays like these. I can’t find an Agilent data sheet, but some tests with a VNA indicate >90 dB isolation and < 0.5 dB insertion loss to 20 GHz. I have not measured the peak curren

As you might be aware, the LDMOS device PD85004 as used in my 70 and 23cm 3W driver board kits is now obsolete and no stock has been available anywhere for around 2 years. This has left me with parts

The second in the series of UKuG 5.7GHz and 10GHz contests takes place this Sunday 26th June froom 0600-1800 GMT (0700-1900 BST). Entrants can operate for a maximum of 8 hours during the contest perio

Thank you to eveyone involved in organising the roundtable event at Finningley today. I hope tomorrow will be another good day as well. I'll not be able to make it tomorrow as my sister is driving dow

I have for sale a Triax DAP611 60 cm fibreglass off-set dish. It has been used twice for a few hours each time, on a camera tripod in my garden. Complete with all parts. It is like new. It was not sui

I'm having another clear out and have a pair of Matsushi S2001A valves to give away. They are the PA valves for the Kenwood TS830S, which I sold many years ago. Untested, if they don't work, my appolo

As per the title, Does anyone have one of the XDY filter/directional coupler kits or PCB's lying around that they would part with?. Alternatively a directional coupler that would handle legal limit po

It was nice to see the amount of 122 testing at RAL on Sunday last. A refresh on UK 122 centre of activity. Frequencies(s) have been mentioned quite a few times for 122 in the past but I dont recall a

Folks, I am intending to bring some stuff down to sell/trade on the 19th. I am not intending to bring any of my usual kits. If anyone is interested in an as-new G450 rotator (never used) with USB ERC