432 MHz preamp
largesignal-firm 70-cm-mast preamplifier in weatherproof mast housing from ABS
plastic. The amplifier can be fixed by a clamp on masts with up to 56 mm in
diameter. All screws as well as the handle of the mast clamp consist of
stainless VA steel.
Within the mast housing the amplifier is put in a shielded metal housing.
The transmission receive switching starts from a transmitting power of 100mW input automatically via HF-VOX, but can also be controlled by PTT as all our preamplifiers. HF-VOX possesses an adjustable switch-off delay, which preserves the relay contacts in SSB mode.
frequency range: 430 - 440 MHz
noise factor: 0,8 - 1,2 dB
gain: ca. 22 dB, max. 26 dB
transmit-receive-switching: HF-VOX or PTT-controlled
certified transmitting power:
VOX-mode: 350 Watts SSB
200 Watts FM
PTT-mode: 750 Watts SSB
250 Watts FM
current supply: 13,5 Volt, ca. 200 mA
supply: remote supply over coaxial cable or separate line
insertion loss: < 0,5 dB
sensitivity HF-VOX: ca. 100 mW
connection standard: N - standard - sockets