JN84 · Banja Luka · Repeater map

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E74BYZ — Radio Club Nikola Tesla Banja Luka
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JN84 · Banja Luka · Repeater map

info@rknikolatesla.rs.ba
LAT ЋИР ENG

Club history / 1946 — today

1946

Eight decades on the same frequency.

From the first radio amateurs and post-war courses through decades of contacts, diplomas and club work — a story of people who for eight decades have connected Banja Luka with the world.

Antenna mast on the club building Club archive
Portable antenna system Club archive
Our history History Archival traces Press Earthquake 1969 1969 QSL archive QSL Preserve history Archive

Our history

A story that has lasted since 1946.

Radio Club “Nikola Tesla” Banja Luka traces its founding to 1946. An archival recollection describes a founding assembly held in 1947 at the National Theatre — two related milestones that mark the club’s beginnings.

Early organisers promoted radio technology through lectures in schools and workplaces. The club trained young people in radio technology, telegraphy, radio mechanics and communications, and developed technical construction, amateur-radio communications and education.

Over later decades it contributed to the development of amateur radio in Bosanska Krajina. Its activities expanded into VHF/UHF, competitions, computing and today’s digital radio networks.

Club premises YU4BYZ Club archive

Club archive

Work in the club station

Operators at the club radio desk — everyday station work that kept Banja Luka on the air.

Operators in the club shack Club archive

Club archive

Operator at the radio

A member at the operating position — headphones on, logs open, another contact underway.

Operator at the radio desk Club archive

Club archive

Portable antenna system ready for the contest

Masts up, beams in place — a portable antenna system staged and ready for competition.

Portable contest antenna system Club archive

Club archive

Raising the boom

Hands under the boom — the crew lifts a mast and Yagi array into place on open ground.

Field team by the van Club archive
Crew lifting the boom Club archive

Club archive

Field tent station

Portable gear ready to work from a field tent.

Tent field station Club archive

Club archive

Winter field tents

Field tents and radio gear in winter conditions.

Winter field tents Club archive

Club archive

Members by the antenna array

Two club members beside a directional Yagi array.

Members by the antenna array Club archive

Archival traces

The club through magazines and amateur-radio press.

The callsigns YU4BYZ and X5BYZ left a trail in domestic and international amateur-radio press — through reports, diplomas, contests, technical experiments and records of radio contacts.

QTC · Sweden

1958

Swedish QTC records a visit to Radio Club YU4BYZ in Banja Luka and a meeting with club members.

Original document ↗

Amatérské Radio · Czechoslovakia

1962

YU4BYZ from Banja Luka is listed among holders of the amateur-radio diploma “100 OK”.

Original document ↗

YU VHF/UHF Bilten · Yugoslavia

1977

In the MS news section YU4BYZ is listed among Yugoslav stations active on meteor scatter during the August Perseids.

Original document ↗

Original scan temporarily unavailable

RadCom · United Kingdom

1977

British RadCom records YU4BYZ in a report on meteor-scatter contacts during the Perseids.

Original document ↗

YU VHF/UHF Bilten · Yugoslavia

1984

In a tropo report on 432 MHz a contact with YU4BYZ/4 (JN94TG) is logged at 249 km.

Original document ↗

Radioaficionados · Spain

1997

The Spanish magazine records X5BYZ in Banja Luka and notes its earlier callsign YU4BYZ.

Original document ↗

Banja Luka / 1969

1969.

When our club’s radio links mattered most.

On 27 October 1969 a devastating earthquake struck Banja Luka. Communication became critically important for the city and the surrounding area.

Archival recollections describe the humanitarian contribution of Radio Club Nikola Tesla members. When conventional networks failed, our radio amateurs remained a vital communication force.

Archival photograph — Banja Luka 1969 1969
  • 1969
  • Crisis communications

When the networks went silent.

In the first days after the earthquake, amateur radio carried reports that official channels could no longer deliver.

Radio amateurs were crucial in the first days after the earthquake, when the communications infrastructure collapsed. Without their skills and equipment, much of the information from the field would never have reached the emergency services, and help would have been delayed.

On the anniversary of that day the club brought authentic period radios to Krajina Square — equipment that once helped open the first lines of communication.

Damaged radio club building after the earthquake 1969
Establishing communications after the earthquake 1969
Establishing communications after the earthquake 1969
Kenwood Trio TS-510 Restoration
  • Krajina Square
  • Restoration

From the Kenwood Trio TS-510 to a museum piece.

The Kenwood Trio TS-510 that carried traffic in 1969 was brought back to full working order — today it stands as an important museum piece of the club’s history.

Club members Siniša Maksimović E73SI and Stevo Antić E73CV restored the Kenwood Trio TS-510 from the earthquake period so it works again: not only as a display object, but as living proof of what the club did when Banja Luka needed communications most.

On Krajina Square the restored Kenwood Trio TS-510 stood beside the archival story — a bridge between the hardest days of 1969 and the club that still keeps that craft alive.

Alternativna Televizija

Remembrance of 1969 — and of the club’s role in the hardest moments

On ATV’s Centar dana programme, Radio Club Nikola Tesla spoke about remembrance of the 1969 Banja Luka earthquake and about the contribution of radio amateurs in the hardest days that followed. In conversation with Đorđe Marjanović, the club also looked back on seventy-five years of its work as continuity of service to the community when communications fail.

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QSL archive

Every card keeps one contact.

QSL cards are material traces of amateur-radio contacts, international links and the history of the club.

QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
E74BYZ QSL / 1980s
QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
E74BYZ QSL / today
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
YU4BYZ QSL / contest
QSL_CARD
E74BYZ QSL / field day
QSL_CARD
X5BYZ QSL / 1980s
QSL_CARD
E74BYZ QSL / DX
QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
E74BYZ QSL / 1980s
QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
E74BYZ QSL / today
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
YU4BYZ QSL / contest
QSL_CARD
E74BYZ QSL / field day
QSL_CARD
X5BYZ QSL / 1980s
QSL_CARD
E74BYZ QSL / DX
QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
E74BYZ QSL / 1980s
QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
E74BYZ QSL / today
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
YU4BYZ QSL / contest
QSL_CARD
E74BYZ QSL / field day
QSL_CARD
X5BYZ QSL / 1980s
QSL_CARD
E74BYZ QSL / DX
QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
E74BYZ QSL / 1980s
QSL_CARD
YU4BYZ QSL / 1960s
QSL_CARD
E74BYZ QSL / today
QSL_CARD
X5BYZ QSL / 1970s
QSL_CARD
YU4BYZ QSL / contest
QSL_CARD
E74BYZ QSL / field day
QSL_CARD
X5BYZ QSL / 1980s
QSL_CARD
E74BYZ QSL / DX

Club archive

  • QSL
  • Photographs
  • Documents

Help us preserve history.

Do you have old photographs, QSL cards, documents, newspaper articles or memories of Radio Club “Nikola Tesla”? Share them with us and help preserve this valuable history for future generations.

Contact the club
E74BYZ
Radio Club Nikola Tesla Banja Luka

Association RK “NIKOLA TESLA” BANJA LUKA

Ul. Bitoljska bb, 78000 Banja Luka, BiH

JIB 4402985500008 · MBS F-1-214/08

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