This spread spectrum racket has appeared today from 433.0 to 434.7 - you can see the usual keyfobs at 433.92. Anyone recognise this? - Phil G3YPQ

Quite a poor night here. Many thanks to those who actually replied to my meeps, nice to work you and sorry for ones we did not complete, mainly northerly, a bad direction for me. Had to resort to CW w

I'll attempt 3cm and 6cm SSB from home, for the January SHF UKAC. Will have KST, Zello and 144.390MHz SSB. Not holding out for many QSO's, but we shall see. Hopefully the snow will have melted by then

On 26/01/2021 15:45, Mike Willis wrote: Eltek Flatpack2 PSU I have loads of 3KW set to 48V or whatever you want. £72 each plus postage. This price only to forum members. 73 Dave G4IUG Ex G8EAO

Hi guys Im looking for some help regarding the HP141 spectrum analyser and thought the best place to look for some help is here. There is a cable (08443-60009) required to inter-connect the 8443A to t

Brexit parcel price shock: 'I had to pay £30 for a gift' Brexit parcel price shock: 'I had to pay £30 for a gift' It's not just shoppers facing surprise costs when EU parcels arrive, but what is behin

I have one of these PSUs type PE2114/242. I think it came with a 13cm PA purchase. Googling found another type number of NTQA91HA which seems to be Nortel, pehaps this is an equivalent. Seems to be fo

I don't believe gap WGs will have much application in amateur microwaves unless low-cost micromachining becomes available. What is attractive and not currently used in any amateur designs AFAIK is 'Su

Does anyone have experience of using the ERA-02 as a tripler from around 3.5 GHz to around 10.5 GHz? I know they work in triplers up to 3 GHz, but I was wondering whether they have a respectable perfo

I have just built a G4DDK PGA-103 preamp to use for ADSB receive on 1090MHz. The preamp will be mounted up on a pole, directly underneath a PCB antenna, in a plastic tube. I feed 12V up to the preamp

As my uw antennas are all temporary, ie I put then up and down only when needed, akin to portable op's but from the home qth, I noticed after the last 23cm use which was in the rain here, got soaked i

A large band of snow cloud heading East from this QTH is producing SS from SEE and PKT . 73 John G0API

I've recently been made aware of substrateless ridge gap waveguide (RGW) and groove gap waveguide (GGW) after reading the publication of "Substrate-less Oscillator Module Realized by Gap Waveguide Tec

I recently bought a whitebox system which arrived in a very poor state. The oscillator 1st stage had several burnt out resistors and the 2nd stage transformer was shorted. All these easily fixed. But

Just like to share some very good customer service experiences from firms microwavers tend to use. Firstly SG labs transverter repair, sent to them before Xmas came back early Jan no charge despite pu

I know some of us use the Baofeng UV-5R 2m/70cm hand-held as a signal marker on 10GHz due to the 24th harmonic of the RX LO highlighted in this article: https://destevez.net/2016/07/phase-noise-of-a-b

With reference to Conrads comment below about being in the middle of England to win we found the opposite. Many years ago our contest group, Three Spires did a statistical survey of points scored of a

Yup, Flatter than the proverbial . Soggy signal from KBQ (loud) but no DX at all . It needs the right rain but I hate to wish for that with the Rain map showing wots about upt North . Is the Tone a ma

New to 23cm so bought an antenna from a well known manufacturer last April, supplied from a well known BIG ham outlet in the UK. This antenna looked solidly made and I was pleased with my purchase. Fi

I had intended the Microwavers Audio Beacon keyer http://g4jnt.com/MicrowaversAudioKeyer.pdf to be the only one I 'did' in terms of hardware. But there have been a small number of requests for the ori