Interact with this product in a Layout Tool:
The 7880DM-FM series is a complete hardware based solution for demodulating analog and digital FM//FM-HD signals. With a modular form-factor, the 7880DM-FM represents one of the highest density and most flexible solutions in the industry providing 8 demodulators in a single slot card.
Applications include signal reception for cable, DTH and IPTV providers, or any other small to large head-end operators who need to receive and distribute local content. The 7880DM-FM has IP output, ideal for turnaround, transcoding, transporting, monitoring or other applications where the received signal remains in the compressed domain.
Advanced RDS (Radio Data System) and RBDS (Radio Broadcast Data System) decoder and processor for demodulation, symbol decoding, block synchronization, error detection, and error correction. The RDS decoder provides several significant benefits including very fast and robust RDS synchronization in noisy signal levels with very high block error rates (BLER), industry-leading sensitivity, and improved data reliability in all signal environments.
Monitoring parameters such as RSSI, SNR and channel stability presents a convenient solution for broadcasters and cable companies who wish to not only receive, but also remotely monitor signal quality. These parameters as well as full control of the demodulator are relayed over SNMP, for convenient remote access using Evertz' own VistaLINK® PRO SNMP monitoring and control package.
Features
- Modular design, allowing flexible configurations along with easy system reconfiguration and service
- 8 FM Tuner modules with digital output for MPEG encoding, streaming
- Supports WorldDMB Receiver Profiles 1 and 2
- Advanced audio DSP processing
- Programmable FM tuner parameters (FM stereo-mono blend, dynamic FM channel bandwidth, AM/FM hi-cut filters)
- Incorporate a preemphasis filter to improve the signal-to-noise ratio of FM receivers
- Monitoring of FM quality parameters and RDS signal parameters (PI, PS)
- Comprehensive signal quality metrics: RSSI, SNR, frequency offset, and channel stability
- Up to four units may be mounted in the 7801FR 1RU chassis, capable of receiving 32 FM signals in 1RU
- Up to fourteen units may be mounted in the 7800FR 3RU chassis, capable of receiving 112 signals in 3RU
- Local control panel option available in 1RU frame
- Remote control panel option available in 3RU frame
- Control through web-browser or SNMP using third-party application or Evertz' own SNMP control and monitoring software
- SMPTE 302 compliant TSoIP outputs per demod
- 8 channels (MPTS/SPTS) via IP (RTP, optional: UDP Unicast/Multicast)
- Optional IP FEC encoding in output stream
- Advanced RDS (Radio Data System) and RBDS (Radio Broadcast Data System) decoder and processor
Specifications
RF Inputs
Tuner | 8 FM tuner |
---|---|
Connector | 4x F-Connector |
Impedance | 75Ω |
Frequency Range | Worldwide FM band :76 – 108MHz |
Worldwide FM-HD Band | 87.5 – 108MHz |
Frequency Step | 10kHz minimum |
Tune Time | |
FM Mode | 1.5ms Typical |
AM Band | 15ms Typical |
Seek/Tune Time | |
FM Mode | Maximum 60ms/ch |
FM-HD | Maximum 120ms/ch |
Maximum Signal Power | |
FM Mode | 25-112dBuV typical |
FM-HD Mode | 25-93dBuV typical |
Return Loss | > 15dB |
IP3 | |
FM Mode | 96dBuV typical, 90dBuV minimum |
FM-HD Mode | 91dBuV typical |
Audio Sensitivity | |
FM Mode | 0.7dBuV typical, 1dBuV maximum |
FM-HD Mode | 6dBuV typical, 17dBuV maximum |
RDS Sensitivity | |
FM Mode | 4dBuV typical |
FM-HD Mode | 6dBuV typical |
L/R Imbalance | from -1 to 1dB at 75kHz deviation |
Adjacent Channel Selectivity | ±200kHz |
FM Mode | 50dB typical, 35dB minimum |
FM-HD Mode | 37dB typical |
ASI Outputs
Connector | Mini DIN 1.0/2.3 |
---|---|
Number of Connectors | 2 |
TSoIP Output
Connector | RJ45, 10/100/1000Mbps |
---|---|
Type | SMPTE 302 over IP |
Control
- SNMP over Ethernet via FC
- Web browser via FC
Monitored parameters
- Channel stability
- Frequency offset
- RSSI
- SNR
- RDS and service text
Electrical
Voltage | +12V DC |
---|---|
Power | < 24 watts |
EMI/RFI | Complies with FCC Part 15 Class A EU EMC Directive Optional SMTPE2022-1 FEC encoding with L&D following the following range: • L*D ≤ 100 • 1 ≤ L ≤ 20 • 4 ≤ D ≤ 20 • if L < 4, then D = 4 always |
Ordering Information
7880DM8-FM4-IP | Eight Channel FM/FM-HD demodulator with Four RF inputs, ASI and IP output |
---|
Ordering Options
Notes | • Rear plate must be specified at time of order - eg: [model]+3RU |
---|
+B75 | 75Ω, BNC connector for RF input |
---|---|
+FEC | Forward Error Correction Capability for IP output (for -IP and -IPASI models) |
Rear Plate Suffix | |
---|---|
+3RU | 3RU rear plate for use with 350FR, 7800FR, 7800FR-QT, 7801FR or 7801FR+IRDCP Multiframes |
Enclosures
350FR | Portable Multiframe which holds 7 single slot modules |
---|---|
7800FR | 3RU Multiframe which holds 15 single slot modules |
7800FR-QT | 3RU Quiet Multiframe which holds 15 single slot modules |
7801FR | 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules |
7801FR+IRDCP | 1RU Multiframe with front control panel installed. Holds up to 4 single slot or 2 dual slot modules |
Accessories
+781PS | Redundant power supply (optional) |
---|---|
7801FC | Frame controller module for use with 7801FRs |