BTR-700 single-channel UHF wireless intercoms
The BTR-700 wireless intercom system is similar to the BTR-800 system and provides one channel of full duplex audio. The BTR-700 is the system of choice where simple, full-duplex, single-channel communication is required.
Models
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TR-700 | |
| Frequency Band of Operation | 518 - 608 MHz, 614 - 740 MHz, 796 - 868 MHz in 18 MHz TX and RX bands |
| Transmit Power | 50 mW Max. (Auto-power reduction) |
| Power Requirements | 6 “AA” Cells Alkaline (NiMH optional) |
| Form Factor | Beltpack |
| Storage Temperature | -4°F to 130°F (-20°C to 55°C |
| Frequency Response | 300 Hz-8 kHz |
| Antenna | ¼ Wave (supplied), Screw type, Replaceable () |
| Type | Dual Conversion Superheterodyne, four Independent Synthesized IFs, FM, 712 channels each |
| Function | User Station |
| Microphone Input Sensitivity | 7 |
| Local Headset Output | 40 mW output into 600Ω () |
| Current Draw | 140 () |
| RF Frequency Stability | 0.005 |
| RF Sensitivity | < 0.7 () |
| Squelch Threshold | 20 () |
| IF Selectivity | 3 () |
| Image Rejection | 70 () |
| Squelch Quieting | 90 |
| Distortion | < 1 () |
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