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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
- @doismellburning That was a special contact. Look forward to many more, maybe even on SSB or CW one day. 😉 8 months ago
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Category Archives: Blog
Yaesu FT-501DX Low Pass Filter
I purchased the FT-501DX LPF along with a number of other items. It belonged to a very good friend, sadly it was part of his SK sale! As my interests are very much VHF upwards, along with the odd session … Continue reading
Posted in Blog, IC-7300, IC-735
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AD8317 + Arduino RF Power Meter # 2
I built an AD8317 power meter a couple years ago. The AD8317 is specified for operation up to 8 GHz, but it provides useful measurement accuracy over a reduced dynamic range of up to 10 GHz. With suitable software and … Continue reading
Posted in AD8317, Arduino, Blog
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QO-100 Experiments – New QRP Transmit Up-converter
I started out on QO-100 using a small home made transmit up-converter built around a number of modules available from eBay. Apart from some failed mixer boards this setup worked well for a period of 18 months or so. I … Continue reading
Posted in ADF4351, Blog, GHz_Bands, QO-100, Satellites
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K3 Panadapter using the NooElec Upconverter + SDR + SDR-Console
My K3/10 has been used primarily with transverters for the VHF and higher bands (it has seen hardly any real use on the HF bands). A FCDPP connected via a splitter to the IF output of the 2m transverter, plus … Continue reading
Posted in Blog, Elecraft K3, SDR
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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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QO-100 Experiments – ADF4351 SynthShield
I’ve recently used a number of ADF4351 modules in various projects. The last two modules have been used to provide a single fixed frequency output. An Arduino Nano running the F1CJN single frequency sketch is used to control the ADF4351. … Continue reading
Posted in 3cms, ADF4351, Arduino, Blog, 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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QO-100 Experiments – LNB Modifications
I have been using a Goobay 67269 LNB with a small Horn antenna on 10368MHz for a while to monitor beacons via rain-scatter. This was a fairly basic setup, the Chaparral horn had been cut-off and the LNB mated to … Continue reading
Posted in 3cms, Blog, GHz_Bands, QO-100, Satellites, SDR
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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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G4HSK 