28-30 MHz preamp

Model: MVV 30 VOX

Description:

Low-noise, largesignal-firm 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 by 100mW input automatically via HF-VOX, but can also be controlled via PTT as all our preamplifiers.

HF-VOX possesses an adjustable switch-off delay, which preserves the relay contacts in SSB mode.

Technical Data:

frequency range: 28 - 30 MHz

noise factor: F = 0,6 - 0,9 dB

gain: 10-22 dB, adaptable on cable length

transmit-receive-switching: automatic via HF-VOX or PTT-controlled

certified transmitting power:

VOX-mode:

250 Watts SSB

200 Watts FM

PTT-mode:

750 Watts SSB

250 Watts FM

sensitivity HF-VOX: about 100 mW

insertion loss in transmit mode: 0,2 dB max.

current supply: 13,5 Volt, about 50 mA

supply: over seperate feed

HF-connection: N - standard - sockets