ZETRON 37-MAX, Installation Manual

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2-1
2. SPECIFICATIONS
GENERAL SPECIFICATIONS
Power 11 to 16 volts DC, 100 mA nominal
Operating Temperature 0 ° to 60 ° Celsius
Size 5.5 in W × 6.25 in D × 1.4 in H
Weight 1.0 pound
RADIO INTERFACE SPECIFICATIONS
Connections 12 volt DC, ground, RX Discriminator Audio, TX Mic Audio,
TX PTT, RX Carrier Detect, CTCSS/DCS Encode
PTT FET pull to ground
Carrier Detector External COR input with polarity and threshold adjustments
TX Audio -40 to +6 dBm, Hi/Lo range selector, 1 k Ω output impedance
RX Audio -40 to +10 dBm, Hi/Lo range selector, 25 k
Ω
input impedance
CTCSS/DCS encode -40 to +3 dBm, Hi/Lo range selector, 600 Ω output impedance
CTCSS slope Flat or de-emphasized output
ADDITIONAL SPECIFICATIONS
Indicators Status, Carrier, Transmit, Power
Station ID Morse Code, fixed 1200 Hz tone frequency, and programmable
call sign
Programming Via DTMF radio
Data Retention Nonvolatile EEPROM
PROGRAMMABLE FUNCTIONS
General
Mode Carrier repeat, or validated CTCSS/DCS users
Station ID ID interval from 1 to 90 minutes, call sign programmable up to
8 characters, periodic ID or ID based on transmit activity
TX Time-out 1 to 9 minutes in 1-minute steps
TX Hold Time 0 to 9 seconds in 1-second steps