AT-288 portable transceiver

Frequency Range

VHF: 136-174MHz    UHF:350-390MHz

UHF: 400-470MHz    UHF:450-520MHz

Channel Capacity

128 channels

Channel Spacing

25KHz(Wide Band) 20KHz(Middle Band) 12.5KHz(Narrow band)

Phase-locked Step

5KHz,6.25KHz

Operating Voltage

7.4V  DC ±15%

Battery Life

More than 14 Hours (1350mAh), by 5-5-90 working cycle

Frequency Stability

±2.5ppm

Operating Temperature

-20°C +55°C

Size

260×57×37mm (with battery, antenna)

Weight

210 g (with battery, antenna)

Receiver (ETSI EN 300 086 standard testing )

Wide band

Narrow band

Sensitivity (12dB Sinad)

≤0.25μV

≤0.35μV

Adjacent Channel

Selectivity

≥70dB

≥60dB

Intermodulation

≥65dB

≥60dB

Spurious Rejection

≥70dB

≥70dB

Audio Response

+1~-3dB(0.3~3KHz)

+1~-3dB(0.3~2.55KHz)

Hum & Noise

≥45dB

≥40dB

Audio distortion

≤5%

Audio power output

500mW / 10%

Transmitter (ETSI EN 300 086 standard testing )

Wide band

Narrow band

Power Output

4W/2W/0.5W

Modulation

16KΦF3E

11KΦF3E

Adjacent Channel

Power

≥70dB

≥60dB

Hum & Noise

≥40dB

≥36dB

Spurious Emission

≥-36dB

≥-36dB

Audio Response

+1~-3dB(0.3~3KHz)

+1~-3dB(0.3~2.25KHz)

Audio Distortion

≤5%