Thursday, December 30, 2021
DRA818 Radios on bench...
It was buyed long time ago, but holidays are giving the opportunity to work on ham radio projects....
A VHF transceiver module is already in use and next days a UHF module will be ready for local area repeaters.
For just the cost of 3-4 coffees you get a nice radio with 1 watt power output...!!!
Tuesday, November 2, 2021
Malahit SDR V3 test during CQWW Contest...
During CQWW SSB Contest, I make some test on HF bands focusing on Selectivity of the receiver. This little baby it's really amazing. The antenna is a 80cm whip. Here is some videos...
10m SSB...20m SSB...
15m SSB...
Friday, October 29, 2021
Malahit SDR V3 clone...
New SDR toy in the shack.... And it worth every cent.
It's beoynd of any expectations....
Wednesday, October 27, 2021
Es'hail QO-100 Geostationary SAT from our club station
At October 23 we manage to make about 35 QSOs after the antenna installation at our club station SZ5RDS. The antenna is 2,4 meter diameter dish with prime focus and a dual feed antenna for 2,4 GHz and 10 GHz LNB. The power amplifier was an EDUP-AB300 8w (2,5w in real world) driven by two SPF-5189z preamps in cascade. The radio used was my ADALM PLUTO SDR with TCXO modification for stable RX-TX. Software for RX-TX was the very impressive DJ0ABR Linux Tranceiver v 1.70.
A big thanks to SV5AZP, SV5KJO, SV5SKE, SV5SKF as Satellite expirement team.
Hope to have soon a permanent installation and hear you via the satellite...!!!
Thursday, September 30, 2021
SV5BYR's DX Cluster node it's back....!!!
After the basic changes my DX Spider node it's back to life again. Now is based on a Odroid C2 and runs more faster than previous Raspberry 2 machine.
Just connect to sv5byr.no-ip.org 7300 and enjoy the DX hunting.
here is the instructions for Logger32:
Tuesday, August 17, 2021
Friday, March 26, 2021
SX5A Special Call Activity
It was March 25, 1821, when Bishop Germanos of Patras raised the flag of revolution over the Monastery of Agia Lavra in the Peloponnese.
The cry “Freedom or death” became the motto of the revolution.
The Greeks experienced early successes on the battlefield, including the capture of Athens in June 1822, but infighting ensued. By 1827 Athens and most of the Greek isles had been recaptured by the Turks.
Just as the revolution appeared to be on the verge of failure, Great Britain, France, and Russia intervened in the conflict. The Greek struggle had elicited strong sympathy in Europe, and many leading intellectuals had promoted the Greek cause, including the English poet Lord Byron.
At the naval Battle of Navarino, the combined British, French, and Russian forces destroyed an Ottoman-Egyptian fleet.
The revolution ended in 1829 when the Treaty of Edirne established an independent Greek state.
I made in total 2.401 QSOs on HF and QO-100 Sat.
CW, SSB and RTTY.
Thanks all OMs around the globe for their support...!!!
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