A proprietary phase-locked synchronous detector provides precise demodulation, rejects interference, and recovers only the amplitude-modulated component of HD Radio™ ‘hybrid digital’ transmissions.
The 525N is also compatible with power-saving MDCL operation. Although the 525N maintains full wideband response for measurement, it features user-selectable audio-monitor cutoff characteristics to mitigate noise or to simulate the response of consumer radios.
IP connectivity with full SNMP support gives the user total access to the unit from any computer, tablet or mobile device. Setup, metering, alarms and audio monitoring are all available from the remote monitoring point.
The 525N is supplied with a large-aperture, weatherproof passive AM Loop Antenna.
Accurate, simultaneous display of positive and negative peak modulation with Peak Density histogram
Absolute-limit and user-programmable Peak Flashers
Calibrated RSSI signal strength display and asynchronous noise readout
Alarms for Low Signal, Audio Loss and Overmodulation with panel indicators and ‘tally’ closures
Full Web interface gives total remote control of all setup parameters, metering, alarms with logging, and streamed audio monitoring
5 Station Presets
10kHz/9kHz channel spacing
Balanced audio output
Supplied with out- door passive AM Loop Antenna
Tunable via the front-panel menu or the Web interface:
520kHz to 1720kHz in 10kHz steps
522kHz to 1719kHz in 9kHz steps Five station-memory pushbutton/Web presets are provided.
RSSI and Noise Display
Absolute-limit flashers are factory-calibrated at –100% and +125% carrier modulation.
A second set of flashers may be programmed by the user to values between –70% and –100%, and +70% and +140%.
Program Audio Outputs
The active-balanced, rear-panel program audio output (XLR) delivers +4dBu from a 200-ohm resistive source.
Front-panel headphone jack (¼-inch, TRS)