
BTR-300 & TR-300 Specifications
Overall
RF Frequency Range
RF Frequency Stability
Crystal Controlled, 0.005%
6 “AA” Cells (Alkaline, NEDA, MN 1500)
typical 82 mA
Transmit Antenna
¼wave wire (attached)
Receive Antenna
¼wave wire (attached)
Input Power (minimum)
12V AC/DC at 360 mA
Intercom Output
330 mV (Low) or 1V (Hi) RMS into 300 Ω load typical (at rated deviation)
Intercom Input (Gain Minimum)
300 mVrms typical (for rated deviation)
Auxiliary Output
2 Vrms into 600 Ω load typical (for rated deviation)
Auxiliary Input (Gain Maximum)
60 mVrms typical (for rated deviation)
Local Headset Input
2 mVrms input nominal
1.5 mVrms input at compression (Dynamic)
Local Headset Output
32 mV maximum output into 600 Ω
Speaker/Local Monitor Output (into 8 Ω)
2 Watts (at rated deviation)
Temperature Range
Transmit
RF Power Output
50 mW Typical
Modulation
FM, 3 kHz deviation
115
Transmit Antenna
⅝ wave (supplied)
Modulation Limiter
Internal Compressor
Modulation Frequency Range
300 to 5000 Hz ±2 dB
Radiated Harmonics and Spurious Emissions
FCC
Type Accepted Under Parts 90 & 74
Contact Information
Telex Communications, Inc.
12000 Portland Avenue South
Burnsville, Minnesota 55337
Telephone:
Fax: (800)
Form Number: LIT000268000 Rev A
Date: August 2008
Receiver
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
3.0μV (Internal)
90 dB
Audio Output
32 mW into 600 Ω (Headset)
Distortion
Less than 1% at Rated Output
Product Dimensions/Weight
15.75”W x 1.75”H x 10.5”D (40cm x 4.5cm x 26cm),
4.5lbs (2 kg)
4.25”W x 4.125”H x 2.0”D (10.79cm x 10.49cm x 5.08cm), 13 oz (369 g) with batteries
Shipping Dimensions/Weight
17”W x 5.50”H x 20”D (43.2cm x 14cm x 50.8cm), 10 lbs 6 oz (4.7 kg)
7”W x 3”H x 10”D (17.8cm x 7.6cm x 25.4cm), 1 lb (454 g)
Ordering Information
This specifications information is preliminary and is subject to change without notification.
Brand names mentioned are the property of their respective companies.