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Level Meter
The Model 4220 is a microprocessor-based, single channel, solid state RF powermeter. It is capable of measuring RF power levels from -75 dBm to +50 dBm. The frequency range and power level are sensor dependent. Available Boonton 50000 series sensors provide measurement capabilities for frequencies from 100 kHz to 110 GHz.
Car amplifier
SPECIFICATIONS Power source...............................................13.2V±0.1V DC Electrode dark current .....................................2mA or less Grounding system........................................Negative type Dimensions(Chassis)..............178(W)x100(H)x166(D)mm (Grille) ....................261(W)x165(H)x44(D)mm Weight...............................................................2.98±0.12kg Cassette player Tape................................Compact cassette tap ...