Features

• Unexcelled off-air reception of analog-FM broadcasts with highly-accurate displays of total modulation and other measurements, even in the presence of on-channel or adjacent-channel HD Radio carriers at any level.

• Intuitive, menu-driven setup from the front panel, or remote setup and operation with the built-in Webserver that may be addressed over any IP network by computer or mobile device. The 541 supports full SNMP remote control and monitoring.

• Graphic front-panel and remote display of all level metering; FFT spectrum analysis of IF passband, MPX baseband and program audio; oscilloscope display of program audio and stereo XY.

• Alarms for a range of signal faults, with tallies and SMS/text or email message dispatches to specific individuals for various alarm conditions. All alarms are logged chronologically as well.

• Analog, AES3-digital, HTTP/UDP Web-streaming and independent AoIP-streaming program audio outputs, plus an FM composite/MPX baseband output.

• The BandScanner™ utility scans the FM spectrum and displays each station with its signal level, PI code and call sign.

• StationRotation™ mode enables automatic sequential monitoring of multiple station presets.

• Collects and logs a history-over-time of FM and audio signal parameters.

• Accurate program loudness measurement to the human perception ITU-R BS.1770 (‘LU’) loudness specification.

• Stays on-channel and retains measurement setups through signal and power losses.

Specifications

Tuning Range

DAB Band III, Mode I (174.928MHz- 239.200MHz); all EBU-specified frequency allocations (Blocks 5-12, A-D) plus Block 13 A-F

Receiver Sensitivity

10μV for error-free reception

Antenna Input

75-ohm (BNC)

Audio Codecs

MPEG-1 Audio Layer 2 (MP2); HE-AAC (AAC+)

Audio Response

±0.25dB, 20Hz-20kHz

AUX Program Line Input

AES3 (XLR) digital AUX input accepts 32kHz, 44.1kHz, 48kHz sampling with programmable input sensitivity.

Network Connection

RJ45 jack accepts universal TCP/IP connector to LAN/router/Internet.

Headphone Jack

3.5mm TRS with menu-adjustable level

Signal Parameters & Metadata Displayed

Frequency, RSSI, SNR, FIC Quality (FQ), CNR, FFT Offset, CNR FIB Error, CU Level, Ensemble Label & ID, Total Services, Total Components, Total CU, Time, Dynamic Label Segment & Size, Sample & Bit Rates, Gain, Mode & ServiceMode, Protection Info, Current CU & Address, Frequency & Block, Service Label & ID, PTY, Component Label & ID, Global ID, Country, Language, Character Set ID, L/R Audio Levels

Alarms

Audio Loss, Low Signal, DAB Loss; adjustable thresholds and delays

Alarm Logs

Alarms are logged and may be downloaded as daily, weekly or monthly CSV files.

Power Requirement

+12VDC at 110mA (2.1mm x 5.5mm coaxial); a universal inline switchmode power supply is provided.

Mounting Options

An optional rack adapter accepts up to three INOmini modules in a 1U rack space.

Size and Weight

• 1.6”H x 5.5”W x 5.5”D
• 4 lbs shipping weight

Environmental

Continuous operation at ambient temperatures between 32ºF/0ºC and 122ºF/50ºC; 0-95% relative humidity, non-condensing, altitudes to 10,000ft/3,048m.