GME TX2720 User Manual
Page 10

PAGE 10
INSTRUCTION MANUAL
TX2720
ELECTRICAL
General
Complies With: AS/NZS4355:2006
Frequency Range: 26-30 MHz
Channel Set: Australian 27 MHz
CB (26.965 – 27.405 MHz)
Modulation: AM (A3E)
 Supply Voltage:	 •	12	V	DC	nominal 
	
• 10.8 – 15.6 V DC range.
Frequency Error: ±1.4 KHz
Dual Watch: Monitor time – 250 ms
Scan Rate: 5 channels/second
Transmitter
Modulation
Frequency
Response: 300 Hz to 3 kHz, +1 – 3 dB
 Max Modulation 
 Depth: 100%
Carrier Output
Power: 4 watts max
Spurious Emissions: < -26 dBm
Receiver
Demodulated
 Frequency 
 Response:	 300	Hz	to	3	kHz,	+1	–	3	dB	
 Receive Sensitivity 
 for 12 dB SINAD @ 
 30% Modulation: -110 dBm
Max Squelch: < -65 dBm
 Adjacent Channel 
 Sensitivity: ≥ 55 dB
 Spurious Response 
 
Immunity: ≥ 55 dB
Conducted
 Spurious 
 Radiation: ≤ -57 dBm
Audio Output
Power 8 Ohms: 2.5 watts
MECHANICAL
Dimensions (mm): 51 (H) x 94 (D) x 170 (W)
Weight: 450 grams
ENVIRONMENTAL
Temperature
Range: -0°C to + 55°C
The TX2720 will operate over the 26-30 MHz 
frequency range. For information specific to 
frequencies outside of the Australian CB bands, 
please refer to the appropriate amendment, or 
contact	GME	at:	[email protected]
SPECIFICATIONS
Specifications are typical unless otherwise indicated and may be subject to change
without notice or obligation.
NOISE SUPPRESSION
27 MHz CB radio can be prone to electrical and 
ignition interference. The reason is that electrical 
noise is a form of AM transmission similar to that 
used by your radio and your radio’s receiver is 
very sensitive. In most cases, ignition noise can 
be greatly reduced or eliminated by selecting 
the Noise Limiter (NL) key on the radio. In some 
severe cases additional suppression may need to 
be fitted to the ignition system of your vehicle in 
which case we recommend you consult an auto 
electrician for advice specific to your installation.
