Telex TR300M-7127M-XXX

VHF Wireless intercom beltpack for use with the BTR-300 base. Offers over 24 hours of battery life using standard AA batteries and over 18 hours using NiMH rechargeable batteries. This is a great choice when budget is the primary concern, but you cannot do without high quality RF performance.

Features

• Lightweight, small size and is self-contained.
• 2 separate antennas, one for transmit, the other for receive.
• Push-to-Talk with Lock-to-Talk feature switch for the TR-300 and Push-to-Transmit with Lock-to-Transmit feature for the TR-300P.

• Power Requirements: 6 AA cells (Alkaline, NEDA, MN 1500) Nickel-metal hydride optional
• Current Drain: typical 82 mA
• Temperature Range: -4° to 130° F (-20° to 55° C)
• Dimensions (W x H x D): 4.25" x 4.125" x 2.0" (108 x 105 x 51 mm)
• Weight: 13 oz (369 g) with batteries
• Transmit Antenna: 1/4 wave wire (attached)
• Receive Antenna: 1/4 wave wire (attached)
• Transmit:
  • RF Frequency Range: 150-216 MHz
  • RF Frequency Stability: Crystal Controlled, 0.005%
  • RF Power Output: 50 mW typical
  • Modulation: FM, 3 kHz deviation. 115 micro-seconds Pre-emphasis
  • Modulation Limiter: Internal Compressor
  • Modulation Frequency Range: 300 to 5000 Hz +/-2dB
  • Microphone Audio Input: 30 to 3500 ohms
  • Microphone Input Sensitivity: 2 mV Dynamic, 4 mV Electret
  • Radiated Harmonics and Spurious Emissions: -45 dBC, Exceeds FCC Specifications
  • FCC: Type Accepted Under Parts 90 and 74
• Receive:
• RF Frequency Range: 150-216 MHz
• RF Frequency Stability: Crystal Controlled, 0.005%
• Type: Dual conversion superheterodyne, FM
• RF Sensitivity: Less than 0.5 µV for 12 dB SINAD
• IF Selectivity: 3 dB at 30 kHz (Ceramic Filter)
• Image Rejection: 70 dB or better
• Squelch Quieting: 90 dB
• Squelch Threshold: 3.0 µV (Internal)
• Signal-to-Noise Ratio: 90 dB
• Audio Output: 32 mW into 600 ohms (Headset)
• Distortion: less than 1% at Rated Output