WD889/WD250 Multi Channel FM Tranceiver & Wireless Modem
----Fully compatible with NISSEI's radio(Rainbow) and GrandComm's radio
1. Data transmission mode: Transparent
2. Modulation mode: FSK(f1=1.3KHz f2=2.1KHz)
3. Transmission rate: 75-1200bps self-adaption
4. BER: 10-7(S/N=20dB)
5. Communication interface: RS232/RS485/TTL
6. Temperature: -40ºC~+70ºC
7. Voltage: DC+7~+15V or +5V
8. Current: RS232: <30mA; RS485: <60mA
9. Installation size: 59.5 x 39.3mm
10.Adapter model: 250A/WD889/WD886 etc
1. Data transmission mode: Transparent/Intelligent
2. Modulation mode: FFSK
3. Wireless transmission rate: 1200/2400/4800bps
4. Interface transmission rate: 1200/2400/4800/9600bps
5. Address code/Data format: Programmable setting
6. BER: 10-7(S/N=20dB)
7. Communication interface: RS232/RS485/TTL
8. Temperature: -40ºC~+70ºC
9. Voltage: DC+7~+15V or +5V
10. Current: RS232: <30mA; RS485: <60Ma
11. Installation size: 59.5 x 39.3mm
12. Adapter model: 250A/WD889/WD886 etc
1. Data transmission mode: Transparent/Intelligent
2. Modulation mode: GMSK/CPFSK
3. Wireless transmission rate: 9600/19200bps
4. Interface transmission rate: 1200/2400/4800/9600/19200bps
5. Address code/Data format: Programmable setting
6. BER: 10-7(S/N=20dB)
7. Communication interface: RS232/RS485/TTL
8. Temperature: -40ºC~+70ºC
9. Voltage: DC+7~+15V
10. Current: <40mA
11. Size(L x W): 60 x 50mm
12. Adapter model: 250A/889/886/250G/258G etc
1. Data transmission mode: Transparent/Intelligent
2. Modulation mode: GMSK/CPFSK
3. Wireless transmission rate: 38400bps
4. Interface transmission rate: 38400bps
5. Address code/Data format: Programmable setting
6. BER: 10-7(S/N=20dB)
7. Communication interface: RS232/RS485/TTL
8. Temperature: -40ºC~+70ºC
9. Voltage: DC+7~+15V
10. Current: <40mA
11. Size(L x W): 60 x 50mm
12. Adapter model: 250A/889/886/250G/258G etc
WD889/WD250 FM Tranceiver /Data Radio Technical Specification
General specification
| Project |
Specification |
| Frequency Range |
220.00 ~ 240.00MHz |
| Storage Channel |
48channel, half duplex |
| Channel Spacing |
25KHz/12.5KHz |
| Bandwidth |
20MHz (In this frequency bandwidth to ensure that the indicators) |
| Modulation Format |
16K0F3D(E) |
| Operating Voltage |
+13.8(Between +10V ~ +16V to ensure the normal work.) |
| Antenna Impedance |
50Ω |
| Loudspeaker Impedance |
8Ω |
| Transmitter Start Time |
≤5ms |
| Temperature Range |
-40ºC~+70ºC |
| Size |
WD889:44.0x135x137mm WD250:124.7X76X34mm |
| Weight |
WD889:720g WD250:365g |
Transmitter
| Project |
Specification |
| Radio Frequency Output Power |
WD889: 2W/5W/10W/15W/25W (Programmable setting)
WD250: 1W/2W/5W/10W/20W (Programmable setting) |
| Clutter Emission |
≥70dB |
| Maximum Modulation Frequency Offset |
±5KHz |
| Audio Harmonic Distortion |
≤2% |
| MIC Modulation Sensitivity |
3.5~14mV |
| Data Signal Modulation Frequency Offset |
(Input signal: 1KHz,250mV) ±4KHz |
| Frequency Stability |
±1.5ppm(-30ºC~+70ºC) |
| Emission Time Limit |
30~1200S |
| Emission Current |
WD889 25W:≤4.5A
WD250 : ≤1.6A (13.8V,10W) ≤3.2A(13.8V,20W) |
| Noise And Hum |
≥45dB |
Receiver
| Project |
Specification |
| Sensitivity |
≤0.20μV(12dB SINAD) |
| Stray And Mirror Resistance |
≥75dB |
| Adjacent Channel Selectivity |
≥70dB |
| Intermodulation Resistance |
≥70dB |
| Snr |
≥50dB |
| Audio Output Power |
1.3W (8Ω 10% distortion) |
| Distortion Rate |
≤4%(When output power is 1W) |
| Current |
≤55mA |
| Data Signal(Rfsk) |
180±20mV |
Data transmission part
| Project |
Specification |
| Communication Interface |
RS232,RS485 or TTL |
| Communication Interface Definition |
CD,RXD,TXD,RTS,DTR,CTS,GND |
| Transmission Rate |
300-1200bps self-adaption, or 1200/200/4800/9600/19200Programmable setting |
| Modulation Mode |
FSK/FFSK/MSK/GMSK |
| Address Code |
Self address code & Common address code(Programmable setting) |
| Relay Function |
Please refer to the company for the use of this function |
| Ber |
≤10-6@-107dBm2400bps |
Audited Supplier 
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