User's Manual

16
Specifications
Transmitter (ST5 and HT5):
Transmission Mode Frequency modulation, 130KF3E, 15 kHz peak deviation
Frequency Range 174.00 MHz to 216.00 MHz, 25 frequencies
Band A (European / UK models) 160.10 to 177.90 MHz
Band B (European / UK models) 189.10 to 210.10 MHz
OSC System Crystal controlled, x12 multiplication
RF Power 5 mW (USA models), 2 mW (European / UK models)
Operating Range 300 ft.
Frequency Stability ± 10 ppm
Approvals Complies with ETS 300 422 and FCC Part 74
Radiating Harmonic and Spurious Emission Below limits of applicable regulations
Antenna Type Internal
Audio Frequency Response 40 Hz to 15 kHz ±3 dB
Pre-Emphasis 50 µSec
Noise Reduction System NE571 based compandor
Signal To Noise Ratio > 100 dB
Maximum Input Level 0 dBv (ST5), -20 dBv (VH3)
T.H.D. < 1% @ 1 kHz
Current Consumption 34 mA (typical)
Battery Life (MN1604 9-volt alkaline) 6 hours (typical)
Operating Temperature -10 to +55 degrees C
Controls
ST5 Power On/Off, Audio On/Off, Attenuation (switch), Level Control (Trimpot)
HT5 Power On/Off, Audio On/Off, Level Control (Trimpot)
LED Indicator Battery high/medium/low
Dimensions
ST5 65 (W) x 22 (H) x 100 (D) mm (2.6 x .87 x 4 in.)
HT5 37 (W) x 233 (H) mm (1.46 x 9.17 in.)
Weight
ST5 100 grams • 3.55 oz.
HT5 200 grams • 7.1 oz.
Receiver SR55 and SR5:
Receiving System
SR55 Single conversion Superheterodyne, Diversity
SR5 Single conversion Superheterodyne, Non-Diversity
Frequency Range 174.00 MHz to 216.00 MHz, 25 frequencies
Band A (European / UK models) 160.10 to 177.90 MHz
Band B (European / UK models) 189.10 to 210.10 MHz
Receiving Mode 130KF3E
Sensitivity < 3 µV for 20 dB SINAD, < 10 µV for 50 dB S/N
Selectivity 120 kHz BW, nominal @ -6 dB, ± 300 kHz (adj CH), -75 dB
Squelch Sensitivity 3 µV to 250 µV adjustable
Intermediate Frequency 10.7 MHz
Local Oscillator System Crystal controlled
Noise Reduction System NE571 based compandor
De-emphasis 50 µsec.
Signal To Noise Ratio > 100 dB (IHF-A) line out, > 90 dB (IHF-A), mic out
Audio Frequency Response 40 Hz to 15 kHz ±3 dB
T.H.D. < 1% @ 1 kHz
Audio Output Levels -10dB unbalanced (1/4" phone connector),
-20 dBm / -40 dBm balanced (XLR connector)
Audio Output Impedance 5 kΩ unbalanced, 600 Ω balanced
Antennas 1/4 wavelength telescopic
Operating Temperature -10 to +55 degrees C
Controls Volume, Squelch, Power
LED Indicators
SR55 Antenna A or B (2 LEDs) /AF Level (6 LEDs) / RF Level (6 LEDs)
SR5 TX On / AF Level (6 LEDs) / RF Level (6 LEDs)
Power Requirement 12 Volts DC, 100 mA typical (110 mA max.), AC adapter supplied
Dimensions (W x H x D, without antennas) 216 x 44 x 116 mm (8.5 x 1.75 x 4.6 in.)
Weight (including antennas) 20 g • 0.75 lb