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LZ2KAC / LZ2KBA LZ2KAC /after 196…2/3??/= LZ2KBA Anniversary initials: LZ13CWT LZ40KBA LZ2KAC THE BEGINNING In 1946, the “Union of Radio Technicians in Bulgaria” was established, which later transformed into the “People’s Union for Sports and Technology” and then into the “Voluntary Organization for Defense Assistance” This marked the true beginning […]

LZ2KAC/LZ2KBA

The beginning was around 1949, when training activities for radio operators began. Teachers were professional radio operators from TABSO at the airport in Oryahovitsa. Training of radio operators in Oryahovitsa. The photo is from 1952-54. In May 1953, the amateur radio station LZ2KAF was opened with Boyan Adzharov (sk), who […]

LZ2KAF – Gorna Oryahovitsa city radio club

Dear friends and fans of the site “Blue Blood”, A few months ago, all sites in the galanto.com domain were seriously hacked. I managed to make an up-to-date archive, but it turned out that the penetration was at a very deep level – even the photos were transformed into executable […]

Address to visitors to the “Blue Blood” website

LZ2KMS – “VASIL LEVSKI” National Military University

Anton Ivanov (LZ3AI, LZ2F266) with his teacher Stefan Getsov (LZ2PS, LZ2F166).

LZ3AI (LZ2F266) and LZ2PS (LZ2F166)

LZ2KHN – city radio club – Sevlievo

LZ2KHN – city radio club – Sevlievo

LZ2KDR – city radio club – Dryanovo

LZ2KDR – city radio club – Dryanovo

LZ2KDC – self-made radio club factory “Red Star” – Debelets

LZ2KDC – amateur radio club “Chervena Zvezda” plant – Debelets

LZ2KCT – self-made radio club in the village of Tsarevets

LZ2KCT – amateur radio club, Tsarevets village

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  • How to set up a manual telegraph key: old-school master tips
  • Frequencies, antennas and a little stubbornness: Practical amateur radio frequencies and bands for Bulgaria
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Last Comments

  1. LZ3AI on Frequencies, antennas and a little stubbornness: Practical amateur radio frequencies and bands for Bulgaria
  2. LZ3AI on Frequencies, antennas and a little stubbornness: Practical amateur radio frequencies and bands for Bulgaria
  3. LZ3DA on Frequencies, antennas and a little stubbornness: Practical amateur radio frequencies and bands for Bulgaria
  4. Jack on Internal Resistance of the Car Battery
  5. LZ3AI on Complete list of amateur radio codes and abbreviations

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  1. LZ3AI on Frequencies, antennas and a little stubbornness: Practical amateur radio frequencies and bands for Bulgaria22.03.2026

    It's already been corrected. Thanks again! 73!

  2. LZ3AI on Frequencies, antennas and a little stubbornness: Practical amateur radio frequencies and bands for Bulgaria18.03.2026

    I will add the frequency when I have time. Thanks for the feedback! btw there is also a Bulgarian version…

  3. LZ3DA on Frequencies, antennas and a little stubbornness: Practical amateur radio frequencies and bands for Bulgaria11.03.2026

    From LZ3DA - Tony, the more common frequency for SOTA activation is 145450. I use 145500 often due to the…

  4. Jack on Internal Resistance of the Car Battery08.02.2026

    I appreciate this info! I used a Viking battery tester tor my car battery. It showed 5.47 mOhms and 63%…

  5. LZ3AI on Complete list of amateur radio codes and abbreviations30.01.2026

    It probably happened during the translation, since in the Bulgarian version (which is original) it is correctly written "предавател" (transmiter),…

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