WD889/WD250 Multi Channel FM Tranceiver & Wireless Modem
WD889/WD250 Multi Channel FM Tranceiver & Wireless Modem
Description
WD889/WD250 FM Tranceiver /Data Radio Technical Specification
| General Specification | |
| General specification | 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 | -40℃～+70℃ |
| Size | WD889:44.0x135x137mm WD250:124.7X76X34mm |
| Weight | WD889:720g WD250:365g |
| Transmitter | |
| 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(-30℃～+70℃) |
| 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 | |
| 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 | |
| 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 |
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