Category: Radio
ON4KST’s Chat Telnet Client ( V 1.5)
This is a simple telnet client specially developed for accessing the chats of ON4KST when you can’t (or don’t want) to use the WEB interface. I made this software for my own use because in my radio QTH by the countryside I only can access the Internet using the GPRS mobile phone. The cost of this service…
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EA6VQ’s 144 MHz EME station RF & AF Components and Schematic Diagrams
4 way 50 Ohm splitter 2 way 50 Ohm splitter HF-400 coax relay SSB-Electronic LNA-145 low noise preamplifier (MGF-1302) 8 M2 2M5WL antennas (aprox. 23 dBD gain) Bird 43 power meter Antennaworks power amplifier (8877) 70w driver brick amplifier Tohtsu CX520D coax relay Kenwood TS-790E transceiver Coax. “T” SSB-Electronic K-2001 144 MHz to 28 MHz converter RFspace…
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Polarization of Signals and Ground Gain
The following discussion about the influence of the polarization of signals and ground gain took place in the moon-net. I found the subject so interesting that I decided to put together all the messages in this page. What causes the so called “ground boost” when moon is low above horizon? Is this effect frequency and/or polarization dependent?…
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A JT65B EME QSO Answering A Station calling CQ With Computer: Complete Build
This is an example of a real QSO made by EA6VQ that could help understand beginners the right procedure for answering a station who is calling CQ via the Moon. (Please notice that the values of date, time, azimuth, elevation, etc. shown are not the real values but the values when I recreated the QSO from the…
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EME with a single Yagi and 50 W? Some setup to Try
There is still some confusion about Moon Bounce operation and the station requirements for making a QSO in the VHF bands using the Moon as a reflector. Might be you have read in the past that only very large stations with four antenna arrays and Kw amplifiers (and skilled CW operators) were capable of working via EME…
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