Friday, March 26, 2021

 SX5A Special Call Activity

 

https://cdn-bio.qrz.com/a/sx5a/QRZ_5.jpg 

 

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...!!!

 

 

 

Tuesday, February 9, 2021

Ham spirit is alive...

Loking for a really rare connector, the Type C military, on internet and the Greek market, I asked my friend Demetrius SV2GWY if he has any.
Unfortunatelly he had no any but he make a search on Thessaloniki stores. He find few, but the prices it was heavy as connectors in ...gold.
Next day the good news came from the other side of borders at Didimoticho. My old friend Teo SV7JAR, send by mail two of them plus a joint adapter....!!! For FREE..!!!
A big THANKS for both, for their ham spirit. Now my old but reliable X type military antenna will be back to life on my roof.
I keep the words if Demetrius telling me on Viber conversation ..."we both collecting points for the heaven"...
God bless you guys...

Saturday, December 12, 2020

Wednesday, December 2, 2020

QRADIOLINK transmission on UHF Ham band...

 


 Testing my ADALM-Pluto SDR on 70cm band. No bad at all...

QRADIOLINK it's great software.

                                             Tnx to SV5ADE Jimmy. 

 

Saturday, November 28, 2020

 CQ WW CW 20m on my SDR server

Crowded 20m band. COVID-19 kepp ham radio CW operators close to radio.
 

Saturday, October 17, 2020

Repairing A3S

 
Thanks to Chris SV5DDT, for the repairing. Cushcraft A3S getting older and the feed point was cuted. Changing jumpers, now is working just fine. There is some minor repairs needed and a good cable managment at next days.

Tuesday, August 25, 2020

Yet another 7 hams....!!!

 Great season for Dodecanese Radio Amateurs Association and the 100% success continue for my students. 

Thanks for effort and success guys. 

I'm proud of you...!!!


Monday, July 13, 2020

Testing NanoVNA V2...

This weekend I make some test with NanoVNA V2, testing some filters and antennas. The results are more than very good. The idea is to understand how thw network analyzer works and specialy how is calibrated. Assisted with software (due the small size of screen) I manage to make some profiles to HF amateur bands and also for VHF and UHF helping me later to make my tests. 

Im very exciting with this new toy...!!

DCI 4 pole 144-146 MHZ filter








YAESU FF-501DX HF passband filter
 

Sunday, July 5, 2020

NanoVNA V2...


 50 KHz to 3 GHz
Vector Network Analyzer

The new toy it's here...!!! 
It's small, it's powerful and worth every cent. 
Stay tuned for more...

Thursday, July 2, 2020

SDRs mods, update, improvements...

Many friends around the globe tell me that "will be very difficult to be done on Rhodes island due to very tiny components and special skills that needed for this work". 
Guys, the doctor it's in... And Im very happy that we have people like him on island. Mike Leventis he is an expert and first of all, a positive man. 
He suprised with my hobby and he tell me stories about him and his friends. He make the job TOTALLY FREE and this is something that I can't forget.

Thanks dear Mike. Im proud of you and impressed about your skills...!!!

HackRF mods and RF shield kit installation...

 RF shield on place...
 
 PLUTO SDR TCXO upgrade to 0.5 ppm and
ground modification.
 

Tuesday, June 30, 2020

Training new hams for exams....


New blood on SZ5RDS Club trained for next Ham Radio Exams. 
Ham Radio still interesting and alive in SV5land.
(photos by SV5FRU-Panos)


Thursday, June 11, 2020

Power meter up to 2 watts...

RF-8000 is my new toy. Can measure up to 2 watts
(using the right attenuator) with limit frequency of 8 GHz.



Unique tool for QO-100 sat project.

Thursday, June 4, 2020

MLA-30+ further tests...

Last weekend I make more tests on new antenna this time on SPY Server. All going well as you can see on pictures. MW sensetivity it's OK too.