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Twitter Updates
- Nice RS on 10GHz now. GB3LEX S9+ in JO01fs. Good to also see GB3SEE at S6, not copied here for a long time.… twitter.com/i/web/status/1… 1 month ago
- RT @radioemmatoc: Happy 2MT Day! Happy Birthday 2MT! 100yrs old! - Join me from 11am for our little tribute to this pioneering station. 'Li… 4 months ago
- I've finally modified my Yaesu G-650C controller. It has an extra socket fitted and can now connect to the shack PC… twitter.com/i/web/status/1… 6 months ago
- Fun build yesterday. A 437MHz Eggbeater for @doismellburning Top cap and ground reflector still to do. It will be… twitter.com/i/web/status/1… 8 months ago
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Category Archives: EME
Yaesu G-5500 Elevation Rotator Repair
In a previous post I described how my G-5500 rotator had failed and would no longer elevate my antennas. Based on what I was seeing at the time and a quick check with a DVM I believed that one of … Continue reading
Posted in Blog, EME, GHz_Bands, Satellites
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QO-100 Experiments – New Down-converter
Probably like most people starting out with QO-100 operation I initially used the Goonhilly QO-100 WebSDR to listen to the satellite down-link. This inspired me to experiment with an LNB, a 65cm offset dish, and a NooElec SDR module with … Continue reading
Posted in 3cms, ADF4351, Anglian TVTR, Arduino, Blog, EME, GHz_Bands, QO-100, Satellites
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Yaesu G-5500 Fault – No 2
I’ve been using a Yaesu G-5500 Azimuth and Elevation rotator for the last seven years. It has been used to rotate various Yagi antennas, initially a single 9 element DK7ZB for 144Mhz, that was replaced with 2×8 element 144Mhz Yagi … Continue reading
Posted in Blog, EME, GHz_Bands
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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
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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
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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
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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
Posted in 23cms, Blog, EME, GHz_Bands
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23cms EME
The challenge to try EME on another band was made much easier when I heard about the SG-Lab TR1300 transverter. I could see that this could be fairly easily integrated into my existing 2m setup. Things have and continue to … Continue reading
Posted in 23cms, Blog, EME, GHz_Bands
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G4HSK 