Pages
Categories
Archives
- June 2022
- March 2022
- February 2022
- October 2021
- February 2021
- January 2021
- October 2020
- July 2020
- March 2020
- February 2020
- January 2020
- October 2019
- August 2019
- May 2019
- November 2018
- July 2018
- June 2018
- May 2018
- March 2018
- February 2018
- January 2018
- July 2017
- June 2017
- May 2017
- April 2017
- March 2017
- January 2017
- November 2016
- June 2016
- March 2016
- December 2015
- June 2015
- April 2015
- June 2014
- December 2013
- November 2013
- July 2013
- January 2013
- October 2012
- September 2012
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
Meta
Category Archives: QO-100
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
Leave a comment
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
Leave a comment
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
Leave a comment
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
Leave a comment
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
Leave a comment
QO-100 Experiments – 2400MHz Pipe-Cap Filter
Over the years I’d seen a number of projects that were using one or more pipe-cap filters. They looked as if they should be fairly simple to make so I thought I should try one to help reduce the unwanted … Continue reading
Posted in Blog, GHz_Bands, QO-100, Satellites
Leave a comment
QO-100 Experiments – 2256MHz Local Oscillator
I chose to use an ADF4351 based synthesizer module to generate the 2256MHz local oscillator (LO) needed for my QO-100 QRP transmit converter. This is controlled by an Arduino Nano. Having already used one of these modules for the 54 … Continue reading
Posted in Blog, GHz_Bands, QO-100, Satellites
Leave a comment
QO-100 Experiments – QRP Transmit Converter
Having spent some time listening to the QO-100 satellite using the Goonhilly WebSDR facility and my own temporary receive solutions, I decided it was time to try generating some RF and get a signal up to the satellite. I was … Continue reading
Posted in Blog, GHz_Bands, QO-100, Satellites
Leave a comment