Every signal delivered right
Every broadcast is a chance to tell a story. My job is to make sure that story reaches its audience with the highest technical precision.
On air · Z61OZ
ZejnullahOsmani
Broadcast engineer · Consultant · Amateur radio
Broadcast systems engineered with precision, built around the story they carry. A career with the United Nations and international organisations, now available as independent consulting.
Live radio: drag the frequency to tune, tap a band, MODE or STEP, press PTT to transmit.
United Nations
A broadcast engineering career with the UN and other global organisations.
Worldwide projects
Experience leading broadcast projects across many countries and teams.
Independent consulting
Now retired, and advising organisations on their broadcast systems.
Station Z61OZ
Licensed amateur radio operator, building and testing radio equipment.
About
Technical precision with a global perspective.
I have spent my career making broadcast systems carry a message to the world reliably. Working with the United Nations and other international organisations, I led numerous projects worldwide, where a transmitter site, a studio or a link simply had to work.
Now retired from that role, I put the same experience to work for organisations that want their broadcasting to be technically sound and a clear reflection of their mission and values. Whether it is advising on a complex system or working hands-on behind the scenes, I bring precision and a practical, global view to every project.
Broadcast engineering is more than just fixing problems; it’s about creating a seamless experience where technology and creativity work hand in hand.
Philosophy on broadcast engineering
Technology serving the message
The best systems disappear behind the content. I design with editorial and creative teams in mind, not only the equipment.
Always learning
Broadcasting keeps changing. I keep learning and adapting so the systems I work on evolve with the industry instead of falling behind it.
Services
Consulting for broadcasters and organisations.
Independent advice from someone who has built and run broadcast systems in the field. Practical, vendor-neutral and focused on what keeps you on air.
Broadcast strategy
Aligning technical infrastructure with your mission, your audience and your budget, so investment goes where it matters.
Transmission and RF
FM and TV transmitter sites, antenna systems, links and coverage, from planning and installation to optimisation.
Studio and playout systems
Signal flow, audio and video chains, and the systems that take content from the studio to the transmitter.
Reliability and maintenance
Redundancy, monitoring and maintenance plans that keep a station on air when it counts.
Technical audits
An independent review of existing installations, with clear findings and priorities you can act on.
Training and mentoring
Passing on practical engineering knowledge so your own technical team can run and grow the system.
Approach
How a project runs.
Listen
Understand your mission, your audience and the constraints you work within.
Assess
Survey what is already in place, on site or remotely, and find what really limits you.
Design
A clear, practical plan with priorities, options and honest trade-offs.
Deliver and support
Help with implementation and hand over knowledge so the system stays healthy.
Radio lab · Z61OZ
A touch-screen DDS VFO, built from scratch.
A variable frequency oscillator for amateur radio receivers and transmitters, designed and programmed at station Z61OZ. The radio at the top of this page is its real interface, running in your browser.
CH1 RF carrier · AMZ61OZ / QTH Kosovo
Carrier7.100 MHz
ModulationAM 80%
StatusLocked
| Controller | ESP32 dual-core, Wi-Fi |
|---|---|
| Display | 2.8" 320 × 240 colour touch screen |
| Synthesizer | Si5351A, 10 kHz to 160 MHz |
| Outputs | VFO on CLK0, BFO on CLK2 |
| Firmware | C++ (Arduino), LovyanGFX graphics |
- Two VFOs with per-band frequency memory, 160 m to 10 m
- LSB, USB, CW, AM and FM with automatic BFO
- RIT, attenuator, noise blanker and AGC switching
- S-meter, audio, RF power and SWR gauges
- Animated boot sequence, Wi-Fi time sync, settings saved to flash
Contact
Let’s talk about your broadcast.
Planning a new installation, upgrading an existing one or looking for an independent technical opinion? Send a short note and I will get back to you.