Roger G3XBM's (Mainly) Amateur Radio Blog

This is an amateur band I have not really tried.  Back in the 1970s, I made a Gunn diode oscillator and got a few feet.  Some take it very s...

Microwaves have largely passed me by. Apart from making a Gunn oscillator in the 1970s  (I think) in some waveguide and testing it over abou...

 As I have mentioned in the past, some take 10GHz operation very seriously, with big dishes, high power and receivers with really low noise ...

With the availability of very low cost HB100 10GHz Doppler radar modules on eBay, many are trying their hands at very simple WBFM transcei...

Quite a few people have been experimenting with very low cost 10GHz units that can be bought for very little on eBay. A few cups of coffee s...

Sadly, I have no gear for 10GHz. I think there was a 10GHz contest on Sunday afternoon. I have thought about getting something, also for 129...

Someone in Australia asked this recently. There are many sources on the internet at rock bottom prices. Remember the price includes a scree...

Steve G1KQH sent me this link: http://ik1zyw.blogspot.co.uk/ 2017/04/hb100-10-ghz-module- frequency-agility.html You may recall that the...

An old work colleague, Richard G3TFX , has found these modules on eBay for £2.23 with free postage . This is an insane price.

I see that a new world record has been set in Italy using the very low cost HB100 Doppler radar module (204km). This was wideband FM, I ...

The HB100 Doppler radar modules can be bought for just a few UK pounds on eBay. These are the modern day equivalent of the Gunnplexers of ol...

Yesterday I received this, which may interest those setting out on 10GHz: Hi Roger, We report our experience with HB100 module. Plea...

My thanks yet again to Southgate News for finding this very low cost approach to 10GHz. My friend G6ALB has also been using these low cost...

I get excited about German spots on 10m WSPR. Meanwhile I noticed this from G4HTZ : "Just worked DF6IY on 10GHz SSB at 618km ..fanta...

The modern way of getting (simply) into 10GHz WBFM appears to be using very low cost 10GHz Doppler radar modules with a 100MHz FM receiver. ...

Recently Ian G3KKD has been telling me about some remarkable results on 10GHz using an Octagon satellite LNB that is available for arou...

http://www.chris-bartram.co.uk/ I've just discovered the GW4DGU website with details of (relatively) low cost assembled modules for...

A new DX record for terrestrial (non EME) communication has been set with a QSO between D44 and CT on July 10th over an incredible 2696km. S...

There was a MOST interesting note on the ARRL propagation report tonight: "Noctilucent Clouds Return - As reported at spaceweather.com ...