Tuning Range
Tunable from the front panel between 520kHz and 1720kHz in 10kHz steps; five station-memory pushbuttons.
Peak Flashers
Absolute-limit flashers (alarmed) are factory-calibrated at –100% and +125% carrier modulation. A second set of flashers may be set from the front panel in 1% increments between –70% and –100% and +70% and +140%.
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Antenna: This 75-ohm (F) input is specifically intended for the large aperture loop antenna provided. Cable is not included, but up to 100 feet of common RG6 TV coax may be used
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Direct: A high-level (BNC) input accepts a direct RF sample from the transmitter between 1V and 7V r.m.s.
Measurement Bandwidth
Carrier amplitude demodulation extends from 20Hz to 10kHz, ±0.2dB. Modulation measurements are not affected by the user-selectable audio cutoff or NRSC de-emphasis.
Audio Response
Audio at the program line output and headphone jack may be menu-selected for “FLAT” response, which follows the full-bandwidth modulation measurement characteristic, or restricted in 1kHz steps between 10kHz and 2kHz (–3dB point) per the graph below.
Audio De-Empahsis
A menu command turns NRSC ‘truncated’ 75μs de-emphasis on and off in the program audio and headphone outputs with any user-selected audio cutoff option.
Audio Distortion
Less than 0.5%THD at 100% carrier modulation
Audio Noise
Typically better than 55dB below 100% modulation at an S9 carrier level with 10kHz audio bandwidth and NRSC de-emphasis selected.
Audio Outputs
The active-balanced (XLR) program audio output delivers +4dBm at 100% modulation. A front-panel headphone jack (1/4-inch TRS) also monitors the demodulated audio.
Alarms
Front-panel indications and open-collector NPN transistor ‘tally’ outputs signal OVERMODULATION, CARRIER LOSS and PROGRAM AUDIO LOSS conditions.
Power Requirements
105-130VAC and 210-260VAC; 50/60Hz; 20W
Size and Weight
23” x 16” x 5” (2U); 12 lbs
584mm x 406mm x 127mm ; 5.4 kg
