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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BTR-700 |
TR-700 | |
| Power Requirements | 100-240 VAC, 50-60 Hz, IEC receptacle | 6 “AA” Cells Alkaline (NiMH optional) |
| Depth | 14.02 in (35.6 cm) | 1.65 in (4.19 cm) |
| Transmit Power | 50 mW Max. (High), 5 mW (Normal) | 50 mW Max. (Auto-power reduction) |
| Weight | 3.16 | 0.45359232 |
| RF Frequency Stability | 0.005 | 0.005 |
| RF Sensitivity | 0.8 () | 0.7 () |
| Color | Black | Black |
| Squelch Threshold | 20 () | |
| IF Selectivity | 3 () | |
| Storage Temperature | -4°F to 130°F (-20°C to 55 | -4°F to 130°F (-20°C to 55 |
| Image Rejection | 70 () | |
| Form Factor | Rackmount | Beltpack |
| Squelch Quieting | 90 | |
| Frequency Response | 300 Hz-8 kHz | 300 Hz-8 kHz |
| Distortion | 1 () | |
| Antenna | ½ Wave (supplied), TNC Male Connector () | ¼ Wave (supplied), Screw type, Replaceable () |
| Type | Synthesized Transmitter, 712 channels | Dual Conversion Superheterodyne, four Independent Synthesized IFs, FM, 712 channels each |
| Function | Base Station | User Station |
| Frequency Band of Operation | 518 - 608 MHz, 614 - 722 MHz, 796 - 862 MHz in 18 MHz TX and RX bands | 518 - 608 MHz, 614 - 740 MHz, 796 - 868 MHz in 18 MHz TX and RX bands |
| 4-Wire Input and Output | Level Adjustable (2 Vrms typical) | |
| Auxiliary Input | Adjustable (2 Vrms typical) | |
| Auxiliary Output | Adjustable (2 Vrms typical into 600Ω) | |
| Microphone Input Sensitivity | 9 | 7 |
| Modulation Type | FM | |
| Deviation | 40 kHz (35 kHz Europe) | |
| Modulation Limiter | Peak-Responding Compressor Radiated Harmonics and Spurious: Exceeds FCC Specifications | |
| Height | 1.73 in (4.4 cm) | 5.05 in (12.83 cm) |
| Width | 19.02 in (48.3 cm) | 3.75 in (9.53 cm) |
| Local Headset Output | 40 mW output into 600Ω () | |
| Current Draw | 140 () | |
| Learn More | Learn More |
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