AM Modulation Monitor
Features Remotely tune AM band, read metering, peak flashers. Tuning Range: 520kHz to 1720kHz in 10kHz steps; 522kHz to 1719kHz in 9kHz steps. Graphic 5-inch touch-screen and remote display of all level metering. Station Rotation for `round robin´ monitoring of up to 30 preset stations. Remote control and monitoring via Web. Enhanced alarm logging with notifications via Email/SMS & SNMP. Remote listening with multi-user stream and Dante/AES67 AoIP. Specifications PLEASE NOTE: Specifications tabulated here are actual, real-world measurements, not optimistic allusions to theoretical ideals. Measurement results should be repeatable when using the appropriate, laboratory-grade test equipment. RF & RECEPTION: Tuning Range: Tunes: 530kHz-1710kHz in 100kHz steps or 531kHz-1701kHz in 9kHz steps. Antenna Input: 50Ω/75Ω (F), 1Vrms max. High-Level RF Input: Two selectable 50-ohm (BNC) inputs for day/night scheduling, 5Vrms max. Off-Air Sensitivity (for 50dB monaural SNR): For 50dB SNR, 5dBµV or better with 10kHz audio bandwidth and NRSC de-emphasis; 15dBµV or better with 15kHz bandwidth, no de-emphasis. Frequency Response: ±0.25dB, 20Hz-15kHz in full-bandwidth mode. Distortion (at 99% modulation): <0.01% THD+N; <0.02% IMD (SMPTE, 60Hz/7kHz, 4:1). De-emphasis: NRSC ‘truncated’ 75µs (defeatable). Audio Cutoff Filter: Nth-order low-pass in audio monitor outputs only, programmable between 15kHz and 2kHz in 1kHz steps. OUTPUTS AND PORTS: Program Audio Outputs: Monaural program audio is delivered to ‘Left’ and ‘Right’ outputs for convenience in audio monitoring. The 526 does not support AM-stereo broadcasting. NOTE: Levels noted apply to symmetrical, ±100% carrier modulation. Consider headroom allowances for +125% program peaks. Balanced Analog: (XLR) Outputs 1 and 2 (‘L/R’) are adjustable from –15dBu to +15dBu in 0.1dB steps; 200Ω resistive source. AES Digital: (XLR) Adjustable from –30dBFS to 0dBFS in 0.1dB steps; user-selected 44.1kHz or 48kHz sample rate; 110Ω transformer-coupled. Dante/AES67 Compatible AoIP Port: (RJ45) Output at 44.1kHz (Dante-only) or 44.1kHz/48kHz (Dante/AES67). The AoIP utility has independent IP, Audio Format and Transmit Flow settings; level adjustable from –30dBFS to 0dBFS in 0.1dB steps. UDP Stream: ADTS or ADTS in MPEG-TS transport. HTTP/Icecast ‘Casual’ Listening Stream: Web browser remote-listening stream employs HE-AACv2 encoding, 44.1kHz or 48kHz sample rate, bit-rates from 18kbps to 64kbps; accommodates up to 10 simultaneous listeners. HTTP/Icecast and raw UDP streams are available simultaneously. Program Audio Outputs (continued): Headphone Jack: (¼” TRS) Menu-adjustable listening level. LAN Port: (RJ45) LAN connection to local network or Internet provides remote monitoring, control, listening and full SNMP implementation; user-programmable network setup and streaming parameters. General Purpose I/Os (Plug-In Barrier Strip): Inputs: GPIs are ground-seeking logic inputs with internal pull-up to +5Vdc. Programmable to accept momentary or sustained ground to switch functions. Outputs: Individual open-collector NPN transistor closures to ground are associated with alarm alerts. Each is programmable for GPO assignment and logic polarity. Outputs sink 100mA, 40VDC max. DISPLAYS AND DISPLAY OPTIONS: Bargraph & Numerical Level Metering: Positive and Negative Carrier Modulation (+150%/ –100%) • Demodulated Monaural Audio (dB) • BS.1770 Loudness (LU) • RF SNR (%) Graphic Displays and History Plots: IF Spectrum • Audio Spectrum • IF/Demod Oscilloscope • Modulation History • RF Metrics History • Loudness History • Audio History • BandScanner. TIMEKEEPING, SCHEDULER AND ALARMS: Real-Time Clock: Auto-sets to Internet time; auto/manual DST setting; battery backup. **Day/Night Scheduler: ** Webpage setup utility with link to FCC Sunrise & Sunset Calculator for automatic switchover, or GPI closure to ground for D/N operation. **Local & Remote Alarms: ** Positive Overmod • Negative Overmod • Audio Loss • Low Signal (Day) • Low Signal (Night). NOTE: Alarms have multiple parameter settings. All alarms can send text or email notifications. Alarms are automatically logged daily, weekly and monthly. POWER, ENVIRONMENTAL, MISCELLANEOUS Power Requirements 88-264VAC, Single-Phase; 12W. Size and Weight 3½”H x 19”W x 9”D; 10 lbs. (shipping weight) Operating Environmental 32°F/0°C-122°F/50°C; 0%-95% non-condensing relative humidity; 10,000ft/3048m. Conformances CE: EN50081-1 / EN50082-1, 93/68/EEC RoHS: 2002/95/EC. Direct Buy:- https://www.inovonicsbroadcast.com/product/526









