144 MHz preamp
Model: MVV 144-VOX
largesignal-firm 2m mast preamplifier. The weatherproof ABS plastic housing can
be fixed with a clamp to 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 low noise factor is achieved by the use of a low-noise dual gate MES FETs, which has a good large signal.
The transmit-receive switching starts from a transmitting power of 100mW 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.
frequency range: 144 - 146 MHz
noise factor: 0,6 - 0,9 dB
gain: ca. 10-20 dB, adjustable
tranmit-receive-switching: automatic via HF-VOX or PTT-controlled
certified transmitting power:
VOX-mode: 350 Watts SSB
200 Watts FM
PTT-mode: 750 Watts SSB
250 Watts FM
sensitivity HF-VOX: about 100 mW
insertion loss in transmit mode: about 0,3 dB
current supply: 13,5 Volt, ca. 50 mA
supply: over separate line or remote supply over coaxial cable
HF-connection type: N - standard (socket)