The Audio Distributors are mainly used as a passive AF line combiner or splitter. Each modular consists of four identical AF combiner/splitter.
The HKADN is used at the Air-traffic Control Center, while the HKADP is used at a remote radio site.
The HKADP has two identical optocoupler blocks which makes it easy to control PTT and SQ signal.
Technical Data
*Audio frequency:0.3kHz ~ 3.4 kHz
*Input and output impedance Nominal(port 1,2,3): 600Ω
*Input and output impedance High(port 4): typ. 4kΩ
*Operating voltage(only HKADP) Positive: +24V ~ +48V DC
*Operating voltage(only HKADP) Negative: -24V ~ -48V DC