The dish is no spoken for.

Do to needing the space. A General Dynamics 1241 2.4m dish - dismantled, as removed from Dubai, described in Scatterpoint. Plus a 40ft clark mast must go. Both in Brentwood Essex. Please email me dire

I am putting together the latest Scatterpoint. It would be nice to include details of any projects, or simple ‘this month I have been .....’ Pictures would be nice. As usual activity ( on air) should

The 5.76 Ceragon module mods were in Scatterpoint and on my web page www.rfdesign.co.uk/microwave I may still have a module around somewhere... Roger G8CUB

Noel, If you were looking at the Philips 47G mixer, they are nothing special, and have a hpf on the IF port. Go for a wr-28 one. There was one with pre-amp quite reasonable. Roger

I measured 0.85dB nf on one where I replaced the wg feed with an sma, though that was 10 years ago! www.rfdesign.co.uk/microwave Roger G8CUB

Mark, I think it is x4 only. But it is possible to hit it harder at 11..G . I think 50mW may be possible. Roger

Sorry forgot to mention high pass filters. I don’t think you will find anything in wr-28. I did find some wr-28 style flange, but wr-22 band pass filters centred on 50GHz a while ago. But not any late

Hi John, The waveguide switch can clearly be seen, in my article. ‘simple 47GHz transverter’. It is on my website. www.rfdesign.co.uk/microwave I see wr-28 mixer on epay for $61. Looks like it has a p

Hi Barry, I need to draw it really. However if you look down on the switch, with the antenna port at 12.00. The mixer rf port is on the 3.00 wg switch port. The wg 6.00 port connects to waveguide goin

Noel, if you have the wg switch, you just need a x4 multiplier and mixer. The NEC Pasolink multipliers give around 15mW. I use one in my system, and one in the loan unit. In both I use a wr-28 mixer.

Likely contest activity as follows: callsign: G8CUB, G8CUB/P locator: JO01DP90, plus others in Essex (JO01JR81, JO01DO31 etc) bands: 24GHz 2/0.6W, 47GHz 50mW, (122GHz 10mW) times: various after 10.00

Activity for mm contest on Sunday. All with possibility of change. Priority is higher mm bands. Callsign: G8CUB/P Locator: Hackpen IO91CL35 first hour. Coombe Gibbett IO91GI25. plus others Bands: 24,

Neil, I have got one of the Relcomm wr-28 switches, that you might like to consider the operation of. It may be easier to manufacture a wr-42 version. Although the wr-28 works fine on 24. You can have

Paul, I use these, and run on a regulated 10V supply. The take 400mA initially but warm up quickly. The ref voltage out is 5V. Nice low phase noise, OK for 122. Roger G8CUB

I have the two 122 boards here. So let me know when you want them Neil. I have a 47G loan system. It is just a mixer, but a fundamental mixer so works reasonably. I am happy for it to be loaned out. T

If anyone has a WR-75 wg17 attenuator >5W I am looking for one to measure harmonics of a pa more accurately. Roger G8CUB

Planned operation as follows: Callsign: G8CUB/P Locator: Hackpen IO91CL35 (09.00 - 12.30z) Coombe Gibbet IO91GI25 (13.30 on) Bands: 24G 1W / 47G 50mW 30cm dish. 76G 50mW 30cm dish (122G 150mm horn) Ti

David, I generally agree with all your points. However as Amateurs, we need to be a lot more aware of where are spurious / unwanted emissions lie. In the past there has been very little thought of rad

Paul, I disagree with you. Existing equipment is on 122.400 in UK. The frequency is works well when you want to generate markers. 12.240 from an Elcom, or 13.600 x 9 from a low cost synth. It also all