The receiver is a sensitive FM receiver that covers the 88 to 108 MHz standard band and demodulates the main channel audio as well as the standard 67 and 92 KHz subcarrier audio.
Meters are provided that enable the Model AF272 to be used as a portable Field Strength Meter. There are two tuning methods: FIXED tune frequency (PLL controlled) and a MANUAL tune control for the entire band. There are switch selectors for the tuning method used, the audio selection, meter function and attenuator controls.
MAIN CHANNEL:
Frequency of operation:............. 88 to 108MHz
Input Impedance ....................... 72 ohm nominal
Sensitivity (mono) ..................... 1.5uV (12dB SINAD) limiting
@
3uV
Attenuation ............................... 30dB set; 30dB meter
reading
Total Harmonic Distortion: .... .. Less than 1% at 100% mod 400Hz
SUBCARRIER:
Frequency ................................. 67 or 92 KHz (switch
selectable)
Sensitivity ................................. 5uV (12dB SINAD) with
10% injection
Total Harmonic Distortion ....... Less than 2% with +/-6 KHz dev.,
400Hz
POWER:
External .................................... 12Vdc nominal, 250mA
Internal (Battery) ..................... Eight "C" size Alkaline (approx.
24 hrs operation)
or NiCad batteries
Batteries not included
(internal battery charger supplied)
CONTROLS/INDICATORS:
Meters ...................................... Signal Strength
Tuning/Injection
Switches .................................... On/Off on AUDIO
ATTN (RF Attenuator)
MAN/FIXED Tuning
TUNE/INJ on meter
MAIN/67/92/"B"
Controls .................................... AUDIO (Volume)
TUNE (Freq. Tuning)
CONNECTORS:
Antenna ..................................... Type "F" connector
Input Power ............................... 2.1mm round
Headset ..................................... 3.5mm audio jack
CONVERTER:
115 VAC, 60 Hz to 12Vdc, 300mA wall converter (supplied)
DIMENSIONS:
3-3/8" H x 6-1/4" W x 8-3/4" D (inches)
WEIGHT:
3.0 lbs w/o batteries; 5.0 lbs with batteries
CASE:
Padded nylon carry case (supplied)
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Last Updated Friday, March 07, 2003