2009Follow Focus forum
Finding short BNC antennas for 72.790 MHz wireless systems
17 years old. Gear and prices may have changed since.
What the thread found
- Lower frequencies require longer antennas due to physics constraints, making very short antennas impractical at 72.790 MHz.
- The shortest available BNC antenna for 72.790 MHz found by professionals was approximately one foot long (Larsen KD4-72 model).
- Frequencies in the high 900s to low 1000s MHz range can potentially overload analog receiver front ends and prevent proper signal reception even if not directly on the target frequency.
Depends on
- The search for antenna sources was unsuccessful at the time of the discussion.
- Discussion references specific equipment and setups that may no longer be current.
- No testing or verification provided for the frequency interference concern.