Hi all I was wondering if anyone had come across microwave diode detectors made by Plessey Optoelectronics and Microwave with a freq range 75-110 ghz and 90-140 ghz Such as Model numbers ATO

for Ebay item http://www.ebay.com.au/itm/ADF4351-Development-Board-module-35M-4-4G-cable-/151410657568 in the middle of the page they wrote ADF4351 has an integrated voltage controlled oscillator

I have had exactly the same experience with ebay item 172152204149!! Programming the /32 or /64 has no effect, so attempts at generating 42MHz or116MHz result in a 2Ghz signal. The chip is marked

The other board I bought was a USB interfaced version 151410657568 The quality of this board is very good, with plenty of via stitching in appropriate places. It was quite a bit cheaper when I bought

That's the chip. Looks the same as my ones and definitely no proper AD triangle. Interesting your does go at 50MHz, which must be calling up the divide by 64. You only have to change three bits in

I've checked a couple of other boards and devices I have with 4350s and 4351s, they all have a #, as do the 4350s in the ZL2BKC boards. I bought a couple of very cheap ADF4351_PLL boards a while back

Do you mean one of these? Both my modules have similar chips, different date codes. Mine works OK, tested at 3.4 GHz and 50MHz. Mike

I've just taken delivery of a couple of quite low cost ADF4351 Synthesizer modules from Ebay This particular one is reference No. 172152204149 (other '4351 modules are also available), so the

A reminder that activity news for the next edition of ScatterPoint should be sent to 'scatterpoint@...' by Thursday 1st September 2016. Neil, G4LDR

The original ADF4150 control software has now been modified to make it compatible with the ADF4351 The ADF4351 Synth chip with its internal VCO has a very nearly identical register set to that of the

Hello Neil Let me suggest an alternative plate design to close the WG entrance opening in your box. Make two plates in the configuration that you propose, ~75 mm OD with a WR-90 hole in the center

Late decision - I'm on my way to the Chiltern Ridge. G1DFL/P IO91OQ (Lacey Green) 10GHz 0.2W 60cm offset Prefer to CQ on 144.175MHz. Will have KST and 07713 432632 for skeds. Planning to be

The synth PCBs arrived yesterday (from Turkey !), so I started looking at the register set and got a sense of Deja-Vu! They are nearly identical to those of the ADF4150 Fract-N synth I played with a

So, next n00b question. Inside the equipment box up on the mast, I have a waveguide relay with a choked face to mate with a square flange. Outside the box, I have a bit of

https://www.cumingmicrowave.com/pdf/210-Dielectrics/210-8%20C-FOAM%20PK.pdf has a decent dissipation factor and a very low dielectric constant once foamed, but I guess the minimum 2lbs quantity would,

Apologies for the outage, apparently on 20 August just as I flew out ofthe country - Murphy's law again! It is back on again now 0600-2200z. I don't know what happened, maybe the battery regulator

No, DON'T PANIC, it hasn't happened again ! I finally got round to getting out an older PIC programmer to investigate the 16F84 device on the DDS board that appeared to have failed on the beacon.

Andy The problem with expanded polystyrene in a waveguide comes when there's water present, and it gets into the matrix of the puffed-up poly cells. This causes the material to make an excellent

G3ZME/P IO82QL (Brown Clee) 5.7 and 10GHz 144.175 (preferred) and 'KST. 07932 927887. 10:15-ish onwards 73 Martyn (G3UKV)

Thanks for the tip Andy, it's something I also need to do with my 10GHz feed. I wonder if anyone's considered using expanding foam spray as an option - perhaps not viable anyway due to being