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• T1, T2, EC1, EC2 TRANSMITTERS
RF Power Output
50 mW maximum
Input Impedance
Actual: 17 kΩ, pin 4 wired to pin 3 for condenser microphones
Gain Adjustment Range
T1, T2, EC1: 40 dB (0 dB counterclockwise, 20 dB mid, 40 dB clockwise)
EC2: 15 dB (2–position switch)
Power Requirements
9V alkaline battery preferred (NEDA 1604A); 8.4V nicad battery optional
Battery Life
EC1, EC2: 7.5 hours typical (alkaline); 1.5 hours typical (8.4 V nicad, per charge)
T1, T2/58: 18 hours typical (alkaline); 2 hours typical (8.4 V nicad, per charge)
Overall Dimensions
EC1*: 82.6 mm H x 63.5 mm W x 26.2 mm D (3–
1
/
4
in. x 2–
1
/
2
in. x 1–
1
/
32
in.)
T1*: 64 mm H x 106 mm W x 24 mm D (2–
17
/
32
in. x 4–
3
/
16
in. x
31
/
32
in.)
T2/58,EC2/58**: 237 mm L x 50.8 mm D (9–
5
/
16
in. x 2 in.)
*Excluding antenna and belt clip.
**Excluding antenna.
Weight
Model Without Battery With Battery
T1,EC1 96.4 g (3.4 oz) 142 g (5.0 oz)
T2/58 296 g (10.4 oz) 338 g (11.9 oz)
EC2/58 454 g (16 oz) 496 g (17.5 oz)
Certifications
T1, T2: FCC Accepted under Parts 74 and 90 (U.S.A.); IC Certified TRC–78 (Can-
ada)
EC1, EC2: FCC Accepted under Parts 74 and 90 (U.S.A.); IC Certified TRC–78
(Canada): MPT 1345, MPT 1350 (UK); BZT Certified (Germany)
• VP3 RECEIVER
RF Sensitivity
–109 dBm (0.8 µV for 12 dB SINAD typical)
Image Rejection
50 dB typical
Spurious Rejection
65 dB typical
Signal to Noise Ratio
87 dB (1 mV RF input, 1 kHz modulation, ±15 kHz deviation)
Squelch Quieting
87 dB, A–weighted
Ultimate Quieting
87 dB (–40 dBm RF input)
Mic Level Audio Output
–36 ± 5 dBV typical, 600 Ω, (fixed level, ±15 kHz deviation input, 1 kHz test tone).
Monitor (Headphones) Output
80 mW at 100 mA, 3% THD
Power Requirements
9 V alkaline battery or 12 Vdc (at 100 mA load) through external coaxial jack.
Battery Life
7 hours (typical)
Dimensions (excluding antenna)
4.9 in. H x 2.375 in. W x 0.875 in. D