TR-72 pic.

TR-72 transceiver

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Tr72.jpg (5500 octets)
Picture : DRAKE COMPANY

bullet 23 Channel Capability
bullet Superior selectivity
bullet Completely solid state
bullet Fully metered
bullet 10 or 1 watt output
bullet Excellent quality; high reliability

SPECIFICATIONS

GENERAL

bulletFrequency coverage: 144-148 MHz
bullet23 Channels, 2 supplied: (1) 146.52 MHz Xmit: 146.52 MHz Rcv. (2) 146.34 MHz Xmit: 146.94 MHz Rcv.
bulletFrequency modulation
bulletPower source: 13.8 VDC +-15%
bulletCurrent drain: Transmit; 2.7 A High power, 1.2 A low power. Receive; .4 A squelched. (lncludes pilot lamps)
bulletAntenna impedance: 50 ohms.
bulletDimensions: 7-1/16" (180mm) wide x 2-3/8" (60mm) high x 9-7/16" (240mm) deep.
bulletWeight: 5.5 Ibs. (2.5 kg)

TRANSMITTER

bullet RF output power 10 watts minimum at 13.8 VDC supply. (High power position) Approximately 1 watt in low power position.
bullet Completely solid state.
bullet Frequency deviation adjustable to -+15 kHz maximum, is factory set to +-6.5 kHz.
bullet Multiplication: 12 times.
bullet Spurious outputs: at least 60 dB down.
bullet Automatic VSWR protection circuit.

RECEIVER

bulletCompletely transistorized crystal controlled double superheterodyne circuit.
bullet1st IF 10.7 MHz with 2 pole monolithic crystal filter and ceramic filter.
bullet2nd IF: 455 kHz with 11 element ceramic filter.
bulletSensitivity: 0.35 uV nominal for 20 dB quieting.
bulletIF selectivity: 20 kHz at 6 dB down, +-30 kHz channel rejection greater than 80‘dB down.
bulletImage rejection: 65 dB
bulletOther spurious responses at least 70 dB down.
bulletInter-modulation response: at least 70 dB down.
bulletModulation acceptance: +-7 kHz.
bulletAudio output; at least 1 watt at less than 10% distortion.
bulletAudio output impedance: 8 ohms.

ACCESSORIES SUPPLIED:

bulletDynamic microphone
bulletDC power cord
bulletFour position mobile mounting bracket
bulletdesk mount stand
bulletmicrophone hanger
bulletauxiliary connector plug and external speaker plug

ACCESSORIES NON SUPPLIED:

bulletModel 1525 EM Push Button Microphone

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(c) 1998-2012 D. PRODUCTS SA/NV - DRAKE is a registered trade mark of R.L. DRAVE COMPANY
No copy of text or image without a written authorization : email: JM CHERRY
Last updated on: 24 Dec 2011