FM Rebroadcast Receiver
The AARON 650 FM rebroadcast/translator receiver is built to handle the most challenging reception scenarios. Boasting sensitivity and selectivity superior to even the most elite professional or consumer receivers, AARON 650 combines premium features with unparalleled receiver performance.
AARON operates in either a composite pass-through or composite-regeneration mode. Composite pass-through eliminates retransmission delay (latency), and composite-regeneration lends the ability to completely reconstruct your baseband signal for reduced noise, even altering RDS messaging prior to rebroadcast.
The back panel provides dual Antenna inputs, dual Composite outputs, Balanced Analog and AES-digital audio outputs, and remote IP access. Rear-panel and self-logging alarms constantly check for Audio Loss, RF Loss, and RDS Loss (or ‘hijacking’). Online notifications can alert personnel with e-mail or instant text messages when any of the alarms occur. The front panel displays left and right audio metering, local LED alarms and has an LCD screen with jog wheel for advanced control and editing of all operating parameters. Failover audio backup is provided via a front-panel SD Card or web-stream should your signal go down.
AARON 650's "responsive" web interface allows complete setup, listening, logging and control of the unit from your PC, tablet or smartphone, and reliable 2-way connectivity is ensured with a built-in Dynamic DNS utility. Advanced off-air metering tools include an FM BandScanner and FFT of the MPX region. Reception bandwidth, auto-blending and many other receiver parameters are controlled via manual or automatic reception processing.
* pictured tablet not included.
Unparalleled DSP-based receiver performance
Composite Pass-Through and Baseband Regeneration modes
Dual Antenna Inputs (N connectors) and Dual Composite Outs (independently adjustable), Balanced Analog and AES-Digital Program Line outputs
Active reception processing for Bandwidth, Stereo Blend, HF Blending and more
Extended FM band tuning range: 64MHz to 108MHz
Advanced metering includes an FFT Spectrum Analyzer for the MPX, Left/Right XY plots and audio levels over time
BandScanner for onsite RF Spectrum Analysis
Local alarm tallies plus self-logging alarms constantly check for Audio Loss, RF Loss and RDS Loss.
RDS messaging can be modified in Stereo Regeneration Mode.
Failover audio backup via SD Card and web-stream audio
Remote control web interface with listening, plus email and SMS alarm notifications
SNMP remote monitoring and control
Includes "N" to "F" antenna adapter
Extended FM band: 65.0MHz–108.0MHz
Unweighted monaural SNR for AES Digital and L/R Analog line outputs referenced to ±75kHz carrier deviation at specified RF input levels:
82dB Digital, >80dB Analog at 60dBμv
78dB Digital, >76dB Analog at 40dBμv
60dB Digital/Analog at 20dBμv
50dB Digital/Analog at 10dBμv
43dB Digital/Analog at 0dBμv
Selectable IF bandwidths: 311kHz, 287kHz, 254kHz, 236kHz, 217kHz, 200kHz, 184kHz, 168kHz, 151kHz, 133kHz, 114kHz, 97kHz, 84kHz, 72kHz, 64kHz and 56kHz
Composite/MPX Output (pass-through): ±0.5dB, 20Hz–100kHz
AES Digital & L/R Analog Line Outputs: >±0.2dB, 20Hz–15kHz
Stereo Separation (at 1kHz)
Composite/MPX Output: >45dB in pass-through mode; >50dB in MPX-regeneration mode
AES Digital & L/R Analog Line Outputs: >50dB
Program Signal Latency (Delay)
Composite/MPX Output: <250μs in pass-through mode; <2.4ms in MPX-regeneration mode
AES Digital & L/R Analog Line Outputs: <2.4ms
Tuning Steps: 200kHz, 100kHz or 10kHz
De-Emphasis (Line Outputs): 75μs or 50μs
Radio Data System: RBDS or RDS
Either of the two 50-ohm (N) inputs may be assigned to any station preset.
Digital Line Output
The AES3 (XLR) 24-bit stereo output may be adjusted between –30dBFS and 0dBFS, corresponding to ±75kHz carrier deviation, with or without de-emphasis. The output sampling rate may be set to 32kHz, 44.1kHz or 48kHz.
Analog Line Outputs
Active balanced (XLR) outputs are adjustable between –20dBu and +18dBu (+15.5dBm), corresponding to ±75kHz carrier deviation, with or without de- emphasis. Source impedance is 200 ohms.
Two unbalanced (BNC) outputs are independently adjustable between 1V p-p and 6V p-p, corresponding to ±75kHz carrier deviation. Source impedance is 75 ohms.
Delivers raw RDS data for analysis
An RJ45 jack accepts TCP/IP network connections for remote setup and operation of the AARON 650.
Headphone Jack (Front Panel)
A quarter-inch (TRS) headphone jack monitors the off-air program signal. Headphone volume is a menu item.
FAILOVER AUDIO PROTECTION
Upon loss of the incoming carrier, loss of program audio, or RDS ‘hijacking,’ the off- air program may be replaced either with pre-recorded material on a plug-in SD card or a Web-streamed audio feed.
AUDIO PROCESSING FEATURES
In either the pass-through or MPX regeneration modes, up to 3dB of composite clipping may be engaged to better define the FM deviation limit. The 19kHz stereo pilot and the 57kHz RDS subcarrier are stripped, filtered and reinserted after the clipper.
THE USER INTERFACE
A front-panel graphic display and jog wheel allow easy, menu-guided in-situ, set- up and operation of the AARON 650. LED “VU” meters display L/R program audio levels.
The IP network port enables complete remote setup and operation of the AARON 650 over a local network or the Internet using any desktop, tablet or mobile browser.
SNMP remote monitoring supported
Test Tone Generator
20Hz – 20kHz; 60dB attenuator
AC Mains Requirements
90–130VAC or 200–255VAC, 50/60Hz; 5W.
H: 1¾in/44mm, W: 19in/483mm, D: 9½in/240mm (1U).
9lb/4kg (net), 12lbs/5.4kg (shipping)
Continuous operation guaranteed at ambient temperatures between 32°F/0°C and 122°F/50°C; 0-95% relative humidity, non- condensing; altitudes to 10,000ft/ 3048m