TRANSMITTER
Carrier power(no mod)
Hi
W
6±0.8
Mid
W
3±0.5
Lo
W
0.8±0.2
Carrier freq. Tolerance
ppm
± 10
Modulation limiting
±kHz
4.3~ 4.9
Modulation sens.For ±3 kHz dev.
mV
7±3
Audio frequency response ( 1KHz / 0dB ref )
@300HZ
dB
-12 ± 3
@2500HZ
dB
+7 ± 3
Audio distortion @ 2.5 kHz dew.
%
≤ 5
Hum and noise ratio
dB
≥ 35
Current drain
Transmit(High)
A
≤ 2.0
Transmit(Mid)
A
≤ 1.5
Transmit(Low)
A
≤ 0.9
Mic Modulation Sen. ( at Sound level of 94 dBA )
±kHz
≥ 1.5
Mic Modulation Limiting ( at Sound level of 110
dBA )
±kHz
4.0 ~ 4.9
Bluetooth part
TX Average Power
dBm
-6 ~ 4
Max. Drift (DH1)
KHz
-25 ~ 25
Max. Drift (DH3/DH5)
KHz
-40 ~ 40
Frequency Deviation (average)
KHz
115 ~ 175
Frequency Tolerance (offset)
KHz
-75 ~ 75
RX Sensitivity (@ 0.1% BER)
dBm
≤ -70
Weather RECEIVER (for Us)
Sensitivity For 12dB Sinad
dBm
≤ -100
Sensitivity For WX Alarm ( 1050Hz Dev.3KHz )
dBm
≤ -100
Note:
Nominal specifications represent the design specifications. All units should be able to approximate these
specs. Some will exceed these specs, and others may drop slightly below them. Limit specs represent the
absolute worst condition that might still be considered acceptable. A unit should never fail to meet limit specs.
3
Содержание MR HH475 FLT BT
Страница 11: ...WIRING DIAGRAM 11 ...
Страница 12: ...PRINTED CIRCUIT BOARD Main PCB Top View VR2 VC1 12 ...
Страница 13: ...PRINTED CIRCUIT BOARD Main PCB Bottom View L18 L20 13 ...
Страница 14: ...PRINTED CIRCUIT BOARD Cradle Charger PCB View Top View Bottom View 14 ...
Страница 16: ...EXPLODED VIEW for HH475 Main Part 16 ...
Страница 17: ...EXPLODED VIEW for Battery and Antenna 17 ...
Страница 54: ...U4 U5 324 NJM V 54 ...
Страница 60: ...U401 HT1621 DICE 60 ...