| Type: | Amateur VHF switched masthead preamplifier | 
| Frequency range / Band: | 144-146 MHz (2 m) | 
| Gain: | 17-19 dB | 
| Noise factor: | 0.6-0.9 dB | 
| Max feed through RF power: | VOX mode: 150 W (FM), 250 W (PEP SSB) PTT mode (VV Interface): 300 W (FM), 450 W (PEP SSB)
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| Impedance / connectors: | 50 ohm / Two N-jacks | 
| Mast diameter: | Max 50 mm (1.97") | 
| Power supply: | 12-15 VDC | 
| Current drain / power consumption: | Max 140 mA | 
| Dimensions (W*H*D): | 125*80*60 mm (4.92*3.15*2.36") | 
| Weight: | ? g (? oz) | 
| Manufactured: | Germany, 1984-199x (Discontinued) | 
| Other: | Active device: 3SK97 GaAs-FET DC-feed via coax or separate DC-cable
 
 New price, november 1984 in the UK: £80.00
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| Related documents: |  | 
| Modifications and fixes: |  | 
| Reviews: |  |