| features | High-performance ‘Software-Defined-Radio’ design. Synchronous (low-latency) off-air composite output. Balanced Analog and AES-Digital Program Line outputs. Active reception processing for Bandwidth, Stereo Blend, HF Blending and more. BandScanner for onsite RF Spectrum Analysis. Local alarm tallies plus self-logging alarms constantly check for Audio Loss, RF Loss and RDS Loss. Remote control web interface and listening + email and text notifications. Includes "N" to "F" antenna adapter. |
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| specification | GENERAL PERFORMANCE Tuning Range: Extended FM band: 65.0MHz–108.0MHz Sensitivity/Noise Performance: 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 Selectivity: Selectable IF bandwidths 311kHz, 287kHz, 254kHz, 236kHz, 217kHz, 200kHz, 184kHz, 168kHz, 151kHz, 133kHz, 114kHz, 97kHz, 84kHz, 72kHz, 64kHz and 56kHz Frequency Response: 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 AES Digital & L/R Analog Line Outputs: >50dB Program Signal Latency (Delay): Composite/MPX Output: <250μs AES Digital & L/R Analog Line Outputs: <2.0ms Regional Settings: Tuning Steps: 200kHz, 100kHz or 10kHz De-Emphasis (Line Outputs): 75μs or 50μs Radio Data System: RBDS or RDS REAR-PANEL APPOINTMENTS Antenna Inputs: 50-ohm (N) Digital Line Output: The AES3 (XLR) stereo output is a 24-bit, 48kHz output that may be adjusted between –30dBFS and 0dBFS, corresponding to ±75kHz carrier deviation, with or without de-emphasis. 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. Composite/MPX Outputs: The unbalanced (BNC) output may be adjusted between 1V p-p and 6V p-p, corresponding to ±75kHz carrier deviation. Source impedance is 75 ohms. Composite Audio Processing: Up to 3dB of composite clipping may be applied to the composite/MPX output to better define the FM deviation limit. The 19kHz stereo pilot and the 57kHz RDS subcarrier are stripped, filtered and reinserted after the clipper. This clipping feature does not affect the demodulated L/R program outputs. Network Port: An RJ45 jack accepts TCP/IP network connections for remote setup and operation of the AARON 640. Headphone Jack (Front Panel): A quarter-inch (TRS) headphone jack mon- itors the off-air program signal. Head- phone volume is a menu item. THE USER INTERFACE Front-Panel: A front-panel graphic display and jog wheel allow easy, menu-guided in-situ setup and operation of the AARON 640. LED “VU” meters display L/R program audio levels. Software Control: The IP network port enables complete remote setup and operation of the AARON 640 over a local network or the Internet using any Desktop, tablet or mobile browser. SNMP: SNMP remote monitoring supported. MISCELLANEOUS Test Tone Generator: 20Hz – 20kHz; 60dB attenuator. AC Mains Requirements: 90–130VAC or 200–255VAC, 50/60Hz; 5W. Size: H: 1¾in/44mm, W: 19in/483mm, D: 9½in/240mm (1U). Weight: 9lb/4kg (net), 12lbs/5.4kg (shipping). Environmental: Continuous operation guaranteed at ambi- ent temperatures between 32°F/0°C and 122°F/50°C; 0-95% relative humidity, non- condensing; altitudes to 10, 000ft/ 3048m. |
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