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Wireless module product information, such as a wireless modem - CIRCUIT DESIGN,INC.

Specifications

STD-302N-R 335 MHz

Common  
Item Specification
Communication form Half-duplex
Frequency 335.7125 to 335.8375 MHz
Channel step 25 kHz Channel programmable
(PLL IC:Fujitsu MB15E03)
Frequency stability +/- 4 ppm (-20 to + 60 degree C)
Data rate 4,800 bps max
(Pulse width min. 200 us, max 20 ms)
PLL reference frequency 21.25 MHz (TCXO)
PLL response 30 ms typ. (from PLL setting to LD out)
Supply voltage 3.0 to 5.5 V
Supply current 38 mA typ (TX) 26 mA typ (RX)
Operating temperature range -20 to + 60 degree C
(Storage : -30 to + 75 degree C)
TX / RX switching time 15 ms typ.
(DI vs valid DO at the same frequency)
Dimension 30 X 50 X 9 mm
Weight 25 g
   
Transmitter Part
Transmitter type PLL synthesizer
RF output power 1 mW at 50 ohm
Deviation +/- 2.4 kHz (PN9, 4800bps)
DI input level L = GND, H = 3 V to Vcc
Residual FM noise 0.17 kHz
Spurious emission - 54 dBm max.
Adjacent CH power -37 dBm
(PN9 4800 bps, CH 25 kHz, BW 10 kHz)
Occupied freq. bandwidth 10 kHz max. (PN9 4800 bps)
   
Receiver Part
Receiver type Double superheterodyne
IF 21.7 MHz (1st), 450 kHz (2nd)
Maximum input level 10 dBm
Receiver sensitivity - 120 dBm typ. (12 dB SINAD)
  - 120 dBm typ. (BER 1%)
  - 117 dBm (0 error / 2556 bits)
Spurious response rejection 70 dB ( 1st Mix), 55 dB (2nd Mix)
Adjacent CH selectivity 50 dB (+/- 25 kHz)
Blocking 84 dB
Intermodulation 50 dB (f - 200 kHz + f - 100 kHz)
Spurious radiation - 57 dBm
DO output level L = GND, H = 2.8 V
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