I have been using one of the "green PCBs" with the ADF5355. I agree with Neil the the layout is possibly not quite ideal. It is also on double sided 1.6 mm FR4 so the there will be some losses and imp

The website is now open for bookings. It is at http://www.gmroundtable.org.uk/ To book a place follow the link in the right hand side bar "Links to forms" and it will take you to the booking page. The

The GM3WOJ personal 10 GHz beacon is back on after an absence of a couple of months due to a power supply fault. It is on 10368.400 MHz. Further details are at: https://gm8bjf.joomla.com/articles/3-th

Hi Martin, GB3EDN is still on the air. I have just been listening to it. I am now retired and it is at my former work QTH but I still have access to the site. I will be there tomorrow and will check a

Hi Martin, I have sent a message to the admin on Beaconspot.eu to ask if the data can be change. For some reason I am not allowed to change that info. I have also checked to output meter and it is nor

Regarding GB3EDN the beacon is sited on the Kings Buildings campus of University of Edinburgh on the south side of the city. The antenna is sited on top of a four storey tower block so is at a good he

I echo the sentiment that the ADF5355 (or the ADF4351) should be run at high charge pump current levels to keep the close to carrier PN down. I have also found that the highest possible PD frequency h

Hi Andy, If you look at my website I have updated the URL and put the schematic onto my site. Saves going to dodgey foreign sites! ;-). I have added a couple of addenda to the article and they are on

Hi Paul, Thanks for the suggestion of putting the files up on this reflector. For some reason that had not occured to me. They are there now. Not sure how exactly the component values on the board fol

Hi Paul, Regarding the inputs and outputs. You can have a complimenmtary drive for the referemce hence the two SMA sockets . The onboard reference is done that way, . I have used just one to feed a 10

Hi Paul, A|pologies for confusion. The picture that Andy posted looks to me the same layout as the black types. It has the same legend NWDZ V2.0 as the black one I have here. It looks like they have j

The GM8FFX 10 Ghz beacon is back on the air after an absence. I went out beacon hunting today to St Abbs Head (actually the aptly named Telegraph Hill) where it is normally very loud to see if it was

The Scottish Microwave Round Table will be held on Saturday 3rd November in the Museum of Communication in Burntisland in Fife. As a departure for previous practice we are making a call for presentati

Chris Tran's 10 G personal Beacon GM3WOJ in IO77WS located 20 miles north of Inverness is back on the air. It is on 10368.400 MHz. I have simplified the hardware and it now back to being a "steam" bea

The 2018 Scottish Microwave Round Table will be held on the 3rd of November and is now open for registrations at: http://www.gmroundtable.org.uk/registration As in past years it is being held in the M

Thanks Andy for making the move! Brian.

Chris Tran GM3WOJ willl be on 10 GHz from the Isle of Man on Thursday and Friday next week, 18-19 October. Operation will be on 10368.200 on SSB and CW at locations chosen to suit locations of station

Hi, If you want to interface the the ADF4351 to the AD demo software I have details of how to do it on my website. https://gm8bjf.joomla.com/articles/9-pc-control-of-analog-devices-adf4xxx-synthesiser

Hi Andy, This may not answer your question but for the record I have just spent some time setting up a 27 MHz Octagon. I found that it would only lock with a sine wave on 27 MHz into it. I tried using

Hi Gordon, I have been using an ADF4351 t generate 27 MHz for an octagon. I am programming it with a Arduino Pro-Mini. I copy the the "sketch" below if that is useful. Also I recently bought another A