martedì 13 luglio 2021

Micro80 for 20 m

 Micro80 for 20 m, new minimalist transceiver by Oleg Borodin, RX3G

 A new minimalist transceiver, for 20m, 100 milliwatt of pure RF, CW; VXO from 14057,3 kHz to 14065,8  kHz.

73 de IZ3AYQ

domenica 13 dicembre 2020

Minimalist QRP Book V5.3

 Here is the new version of the minimalist QRP book; simple projects of RTX, TX and RX for QRP.

Minimalist QRP book


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martedì 11 agosto 2020

Testing the "Shorty Multy" Antenna

 During 7 months, using QRP and QRPp power (1 watt in 88 QSO, 2,5 watt in 100 QSO, 3 watt in 19 QSO and 5 watt in116 QSO) i was able to connect these countries:

3V Tunisia, 3Z and OZ Denmark, 4O Montenegro, 4X and 4Z Israel, 5B and P3 Cyprus, 9A Croatia, AA and K and W U.S.A., AM and AO and EA Spain, CR3 Azores Islands, D Germany, E7 Bosnia, EA8 Canary Islands, EA6 Balearic Islands, ES Estonia, EU EW Belarus, F France, G and M England, GI Northern Ireland, GM Scotland, HA and HG Hungary, I Italy, IS0 Sardinia Island, SV Greece, KP Virgin Islands, LA Norway, LY Lithuania, LZ Bulgary, OH Finland, OK Czech Republic, OM Slovak Republik, ON Belgium, OY Faer Oer Islands, PA Nederlands, UA R Russia, UA9 Asiatic Russia, SM Sweden, SP Poland, US Ucraina, YL Latvia, YO Romania, YU and YT Serbia, Z3 Macedonia.

So we can say that i had good results, considering that it is a short and stealth antenna. 

73 de IZ3AYQ

lunedì 10 agosto 2020

End Fed Zeppelin Antenna

 This is an End Fed Zeppelin Antenna; it is very short and it can be used from 40 to  10 meters, with antenna tuner. I uset a kit from  https://www.qrphamradiokits.com ; the kit divide the impedence by 49.

The lenght of the counterpoises is experimental.

73 de IZ3AYQ