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The LMR series of receivers from Cobham Surveillance (GMS Products) combines the proven reliability of the MR Series receiver with the features demanded in the fast-paced video production marketplace. In addition to the features found in the MR receiver, the LMR Series includes an RF band pass filter to reduce adjacent channel interference, a built-in universal AC power supply, and a 7 inch TFT color monitor. All this is packaged in a rugged enclosure designed to mount on a conventional tripod to make field setup fast and easy.
The LMR Series receiver is ideal for temporary point-to-point links where maximum flexibility is required. Tracking an airborne relay is easy with the LMR Series since the video monitor is built in. The LMR Series is an ideal solution to remote broadcast applications.
Model No. | LMR
|
RF Frequency Range | 1.7-6.0 GHz standard
(consult factory for additional frequencies) |
Frequency Stability
| 0.005%
|
Noise Figure
| 4 dB typical L/S; 7 dB typical C
|
Dynamic Range
| 75 dB |
Sensitivity
| -83 dBm: S/N weighted of 43 dB for L/S 40 dB for C is typical |
Input Impedance
| 50 Ohm
|
Power Voltage | 11-15 V DC or 100-240 V AC |
| Current | 900 mA DC typical incl. monitor |
Video
Output Impedance | 75 Ohms |
| Output Level | 1 V (peak-to-peak) |
| De-emphasis | Per CCIR 525/625 line |
Frequency Response
| 10 Hz-5.5 MHz
10 Hz-10 MHz composite |
Signal to Noise
| 58 dB p-p/rms weighted typical
|
Signal to Low Frequency Noise
| 50 dB Meets or exceeds EIA/TIA 250-C end-to-end performance specifications |
Environment Temperature | -20ºC to +70ºC
|
| Humidity | 0 to 100%, Non-condensing |
Audio Sub-carriers available | 4.83, 5.8, 6.0, 6.2, 6.5, 6.8, 7.02, 7.5, 8.3, 8.5, 8.59 MHz (any two) |
| Output Impedance | 600 Ohm balanced |
Output Level
| +9 dBm Meets or exceeds EIA/TIA 250-C end-to-end performance specifications |
Mechanical Size | 5.6"x7.5"x3.5" (14.2x19.1x8.9 cm) |
| Weight | 5.5 lbs (2.5 kg) |
Connectors RF Input Connector | Type "N"
|
Video Output Connector
| BNC Female (2)
|
| Audio/Power Connector | PTO2H-12-10P |
Pinout
| A:+11-15 V DC
B:Ground
C/E:Audio 1
D/F:Audio 2
G/H:RS-232
J:Video
K:Composite |