TRC-485  40-Channel AM/SSB CB Transceiver
(210-1577)                 Specifications             Faxback Doc. # 33143

RECEIVER

Max Sensitivity: ......................... AM 0.5 microV, SSB 0.25 microV

Sensitivity for 10dB S/N: ................ AM 0.5 microV, SSB 0.25 microV

AGC Figure of Merit 100mV
for 10dB change in Audio Output: .................... AM 90 dB, SSB 90 dB

Overload AGC Characteristics
from 100mV to 1000mV: ............................ AM + 3 dB, SSB +/-3 dB

Overload Audio Fidelity at 6 dB Down: .................. 450 Hz - 2100 Hz

Adjacent Channel Selectivity: .................................. AM 60 dB

Image Rejection (5.6 MHz): .................. Typically better than 90 dB

IF Rejection: ........................................... 70 dB or better

Maximum Audio Output Power: ................................... 2.5 Watts

Squelch Range: ....................... Adjustment from 0.5 microV to 1 mV

Battery Drain at no signal: ...................................... 500 mA

Battery Drain at Max. Output Power: ............................... 1.5 A

Receiver Clarifier Range: ............................ +/- 1 KHz Variable

TRANSMITTER

Max. Output Power: ......................... AM 4 Watts, SSB 12 Watts PEP

Spurious Emission: ..................................... -65 dB or better

Battery Drain at no modulation: ...................... AM less than 2.5 A
                                                      SSB less than 1.0 A

At Max. Output Power: ................................ AM less than 2.5 A
                                                      SSB less than 3.0 A

Modulation Frequency Response
(1 kHz, 0 dB reference): ..................... Lower, at 450 Hz, AM -6 dB
                                                                SSB -6 dB

                                              Upper, at 2.5 kHz, AM -6 dB
                                                                SSB -6 dB

Modulation Frequency Response
(1 kHz, 0 dB reference): ..................... Lower, at 450 Hz, AM -6 dB
                                                                SSB -6 dB

                                              Upper, at 2.5 kHz, AM -6 dB
                                                                SSB -6 dB

Microphone Sensitivity: ......................... AM 4 microV for 50% mod
                                             SSB 4 microV for 4 Watts PEP

Microphone Amplifier Circuit: .................................. AM 50 dB
                                         (between 98% and 80% modulation)
                                                                SSB 50 dB

                                          (between 12 W PEP and 10 W PEP)

PUBLIC ADDRESS AMPLIFIER

Maximum Output Power: ......................................... 2.5 Watts

GENERAL

Channels: ........................... 40 channels for AM, 40 channels SSB

Frequency Range: ............................... 26.965 MHz to 27.405 MHz

Frequency Control: ................ Digital phase-locked loop synthesizer

Operating Temperature Range: .............. -4 degrees F to 122 degrees F

Power Requirements: ........................................... 13.8 V DC
                             12-16 Volts, DC, negative or positive ground

Antenna: ..................................... 50 Ohm (coaxial connector)
Microphone: ..................................... Electric condenser type

Speaker: ................................................. 8 ohm, 3 Watts

Dimensions (HWD): ...................... 2 3/64 x 6 1/16 x 7 41/64 inches
                                                      (52 x 154 x 194 mm)

Weight: .............................................. 2.65 lbs. (1.2 Kg)

Accessories: ..................... Microphone Hanger and Mounting Bracket

Specifications are typical; individual units might vary.  Specifications
are subject to change and improvement without notice.


(LB/EB 5/16/96)