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- Five minutes into the ARI EME contest last month and my G-5500 EL rotator failed! Yesterday I replaced it with a he… twitter.com/i/web/status/1… 3 weeks ago
- @g7vjr IBM System/3 Model 10. RPG and 96-column punched cards! 1 month ago
- @doismellburning Looking good. 2 months ago
- Having lots of fun with this new Pluto. It's been modified for GPSDO and GPIO switching. Next step is to make a 13c… twitter.com/i/web/status/1… 4 months ago
- An EDUP 8W WiFi PA was delivered yesterday. After a quick mod to the RF switching, the addition of a cooling fan an… twitter.com/i/web/status/1… 5 months ago
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Category Archives: EME
Yaesu G-5500 Fault – No 2
I’ve been using a Yaesu G-5500 Azimuth and Elevation rotator for the last seven years of EME (Moonbounce) operation. It has been used to rotate 2×8 element 144Mhz Yagi antennas and a 67 element 1296 MHz Yagi. The G-5500 is … Continue reading
Enhanced USB-to-Serial PTT Interface
Many of the modern transceivers today support direct USB connectivity to your shack PC. This USB connection typically enables 2-way audio and CAT control allowing more or less full control of the transceiver, including PTT keying. Where CAT control for … Continue reading
Posted in 23cms, 3cms, 70cms, Anglian TVTR, Blog, EME, GHz_Bands, QO-100, Satellites
Fun on 10GHz – 1
Over the last 20 years or so I’ve rarely operated my radio equipment away from home. This has changed since I’ve caught the “microwave bug” and got started on the 10GHz band. My 10GHz setup comprised initially of just a … Continue reading
Yaesu G-5500 Fault
About two weeks ago my Yaesu G-5500 rotator controller developed a strange fault. The Azimuth (AZ) meter would not display correctly, the Elevation (EL) meter was working fine. The AZ meter showed only ~20 degrees but the EME antennas … Continue reading
Posted in Blog, EME, Satellites
A ProgRock and a very old MMT 144/28 Transverter
Having got the 10MHz side of the ProgRock project working (see here for details) the next stage was to look at the 116MHz output. If this was also acceptable, I would have an alternative means of generating the two frequencies … Continue reading
Building a ProgRock kit for use as a frequency reference for VHF / UHF Transverters – 1
The ProgRock is a kit produced by QRP-Labs. It is described as a triple GPS-disciplined programmable crystal, based around a Si5351A Synthesizer. Having read positive reports on the ProgRock I decided to order one, plus the optional GPS kit. I … Continue reading
23cms VLNA Finally Installed at the Masthead
It’s been a long slow process but today I finally finished installing the G4DDK 23cms VLNA at the masthead. The extended timeline was partly due to some other improvements that needed to be done to the 2m EME setup and … Continue reading
A Fun Couple Of Days On 23cms
Having recently completed the ~20W PA for 23cms I was looking for some activity on the band to see what difference the extra few watts would make. Unfortunately I had just missed the monthly UKAC session. Reading the UKMicrowave Digest I … Continue reading
1.3GHz 20W PA
My plan to be QRV on 23cms EME continues to move forward albeit at a rather different pace to what I’d originally envisaged. After a period of many weeks where little progress was made I’ve focussed my mind on getting … Continue reading
1.3GHz Transverter – separate TX / RX ports
The SG-Lab TR1300 transverter continues to impress me. My current setup on 1.3GHz is the TR1300 with Sam, G4DDK’s VLNA and a single 67 element long yagi. The Anglian transverter is used on the 144MHz IF side, both transverters are locked … Continue reading
