D1-5
■ 系列編號
■ 系列下機型編號
U3系列
U3S
U3A1
U3A2
U4S
U4A1
U4A2
U4系列
B
Specification of Equipment Hardware
B14 Audio
Specification
Sound pressure
Distortion
Hum and noise ratio
MOS listening quality
Microphone Sensitivity
Microphone background noise cancellation
≧92 dB
≦10%
≧30 dB
≧3 min
≧-46 dBV
≧10 dB
≧92
dB
≦10%
≧30
dB
≧3 min
≧-46
dBV
≧10
dB
12.5 KHz
25 KHz
12.5 KHz
25 KHz
B11 Frequency range and the max emission rate
B12 Receiving
and sending
signal mode
B13 Receiving and
sending
message type
1. The analog and digital signal can be
mix-used in the same time.
2. It can auto-detect the coming signal
mode and the protocol, and intermodu-
late and decrypt based on the result.
Users do not need to manually switch
the channel.
1. Under the analog system, it is able to
receive and send the text and image
message only in the protocol MDC 1200
and WDC.
2. Use MDC 1200 and WDC to receive and
send the message, voice, text and
Image.
B15 GPS
B16 Bluetooth
B17 Hardware and
Interface
The time required to cold boot to satellite
positioning
The time required to warm up to satellite
positioning
LCD Screen
Speaker
Antenna Connector
USB
≦ 40 seconds
≦ 2 seconds
≧ 3 meters
≧ 10 meters
220 x 176 pixel
1 W
50 Ohm
2.0
320 x 240 pixel
1 W
50 Ohm
2.0
≧ 3 meters
≧ 10 meters
≦ 140 econds
≦ 6 seconds
Communication distance - with the voice
quality
Communication distance - sending the data
C2 Faded Reference Sensitivity (Conducted)
C1 Reference
Sensitivity
(Conducted)
Analog
Digital
C3
Adjacent
Channel
Selectivity
Wide Band / 25KHz
Narrow Band / 12.5KHz
C6 Hum and
Noise Ratio
Unsqu / - 5.0 kHz
Squ / - 5.0 kHz
C5 Intermodulation Rejection
C4 Spurious Response Rejection
≦ -118 (12 dB SINAD) dBm
≦ -118 (5% BER) dBm
-108 dBm
-108 dBm
68 dB
55 dB
40 dB
-57 dBW
40 dB
-57 dBW
64 dB
55 dB
≧ 80 dB
≧ 80 dB
≧ 70 dB
≧ 70 dB
C7 Receiver Attack Time
< 150 ms
<150 ms
C8 Blocking Rejection
≧ 90 dB
≧ 90 dB
≦ -118 (12 dB SINAD) dBm
≦ -118 (5% BER) dBm
C
Features and specifications (RF RX)
▄
Handheld Radio Series
▄
Model of Handheld Radio Series
U3 Series
U3S
U3A1
U3A2
U4S
U4A1
U4A2
U4 Series
PART D. U Series Portable Radio Specification & Function Description
