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

Posted in Blog, EME, GHz_Bands

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

Posted in 3cms, Blog, EME, GHz_Bands

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

Posted in 23cms, Blog, EME, GHz_Bands | Tagged ,

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

Posted in Blog, EME | Tagged , | 1 Comment

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

Posted in 23cms, Blog, EME, GHz_Bands

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

Posted in 23cms, Blog, EME, GHz_Bands

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

Posted in 23cms, Blog, EME, GHz_Bands

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

Posted in 23cms, Blog, EME, GHz_Bands