• UHF band, single-channel wireless intercom beltpack
  • UHF band: operate in select frequency bands between 518-686MHz
  • Single-channel
  • Extremely light, durable cast magnesium
  • Durable, detachable antennas are secured to the beltpack via threaded post connectors
  • Low-profile volume control
  • Robust, distinguishable momentary latch talk button.
Item Part Number:

WTR-670/A2, WTR-670/B4, WTR-670/C3, WTR-670/C6, WTR-670/G9, “WTR-670/xx B4= B4 Frequency Band, C3= C3 Frequency Band, C6= C6 Frequency Band, G9= G9 Frequency Band “

Technical Specifications


RF Frequency Range: 518 – 608 MHz, 614 – 686 MHz in 18 MHz TX and RX bands

WTR-670: G9 band, 844-862 MHz Tx, Germany only

Power Requirement: 6 Alkaline “AA” Cells (NiMH optional)

Typical Battery Life Alkaline: 14 Hours (Continuous duty with talk light on)
Typical Battery Life – Nickel Metal Hydride (1500 mAh): 11 Hours (Continuous duty with talk light on)
Current Draw: 140 mA (Push-to-Talk, Talk On)
Temperature Range:  -4oF to 140oF (20oC to 55oC)
Dimensions: 3.75 x 5.05 x 1.65in (WxHxD) (9.5 x 12.8 x 4.2cm)
Weight: 16 oz. (0.454 kg) with batteries 15 oz. (0.425 kg) with batteries
Transmit Antenna: 1/4 Wave (supplied), Screw type
Receiver Antenna: 1/4 Wave (supplied), Screw type
Frequency Response: 300 – 8,000Hz
Four-Wire Input:  N/A
Four-Wire Output: N/A
Clear-Com® Party-line Levels: N/A
RTS® Party-line Levels: N/A
Telex® Party-line Levels: N/A
Auxiliary Input: N/A
Auliliary Output: N/A


Type: Synthesized, 720 channels
Transmit Power: WTR-680/WTR-670: 50 mW max. (auto-power reduction when close to base)
RF Frequency Stability: 0.005%
Modulation: FM, 40 KHz Deviation
Modulation Limiter: Peak-Responding Compressor
Modulation Frequency Range: 300 -8,000Hz +-2dB
Microphone Audio Input: 30 – 3,500W
Microphone Input Sensitivity: 9mV
Radiated Harmonics & Spurious: Exceeds FCC specifications
FCC Acceptance: Type accepted under FCC Part 74


Type: Dual Conversion Superheterodyne, Synthesized, FM, 720 channels
RF Sensitivity: <0.7mV for 12dB SINAD
Signal-to-Noise Ratio: 95dB
IF Selectivity: 3dB at 230kHz
Image Rejection: 70dB or better
Squelch Quieting: 95dB
RF Frequency Stability: 0.005%
Distortion: <1% at full deviation
Local Headset Output: 40mW output into 600 W (1% distortion)
FCC Acceptance: Notification under FCC Part 15

Associated Products

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