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

Specifications

LMD-400-R 458 - 462.5MHz

(All ratings at 25 degree C unless otherwise noted)

Common  
Item Specification
Applicable standard FCC Part 90.217
IC RSS-119
Communication form Half-duplex
Emission class F1D
Modulation GFSK
Frequency 458 to 462.5 MHz
Channel spacing 12.5 kHz Channel programmable
Frequency stability +/- 2.5 ppm (-20 to + 60 degree C)
Aging rate +/- 1 ppm / year
Data rate 4,800 bps max
(Pulse width min. 200 us, max 15ms)
Operating temperature range -20 to + 60 degree C
(Storage : -30 to + 75 degree C)
TX / RX switching time 15 ms typ. (DI vs DO)
Supply voltage 3.0 to 5.5 V
Supply current 52 mA (TX), 42 mA (RX)
Dimension 30 X 50 X 9 mm
Weight 25 g
   
Transmitter Part
Transmitter type PLL synthesizer
RF output power 10 mW at 50 ohm (25 degree C)
Deviation 2.4 kHz (PN9, 4800bps)
DI input level L = GND, H = 3 V to Vcc
   
Receiver Part
Receiver type Double superheterodyne
IF 21.7 MHz (1st), 450 kHz (2nd)
Maximum input level 10 dBm
Receiver sensitivity - 116 dBm typ. (12 dB SINAD)
  - 116 dBm typ. (BER 1%)
Co-channel rejection - 7 dB (D/U ratio)
Spurious response rejection 70 dB
Adjacent CH selectivity 65 dB (25 kHz ch) / 55 dB (12.5 kH ch)
Blocking 84 dB
DO output level L = GND, H = 2.8 V
RSSI rising time 30 ms (25 kHz shift), 50 ms (at power on)
Time until valid Data-out 50 ms (25 kHz shift), 70 ms (at power on)
RSSI out 310 mV at -100 dBm, 240 mV at -110 dBm

Specifications are subject to change without prior notice

LMD-400-R 438-442 MHz

Common  
Item Specification
Applicable standard EN300113
Communication form Half-duplex
Emission class F1D
Modulation GFSK
Frequency 438 to 442 MHz *
Channel spacing 12.5 kHz Channel programmable
Frequency stability +/- 2.5 ppm (-20 to + 60 degree C)
Aging rate +/- 1 ppm / year
Data rate 4,800 bps max
(Pulse width min. 200 us, max 15ms)
Operating temperature range -20 to + 60 degree C
(Storage : -30 to + 75 degree C)
TX / RX switching time 15 ms typ. (DI vs DO)
Supply voltage 3.0 to 5.5 V
Supply current 52 mA (TX), 42 mA (RX)
Dimension 30 X 50 X 9 mm
Weight 25 g

* Ask for other specific frequency in 400 MHz with 4 MHz coverage

   
Transmitter Part
Transmitter type PLL synthesizer
RF output power 10 mW at 50 ohm (25 degree C)
Deviation 2.4 kHz (PN9, 4800bps)
DI input level L = GND, H = 3 V to Vcc
   
Receiver Part
Receiver type Double superheterodyne
IF 21.7 MHz (1st), 450 kHz (2nd)
Maximum input level 10 dBm
Receiver sensitivity - 110 dBm typ. (12 dB SINAD)
  - 110 dBm typ. (BER 1%)
Co-channel rejection - 7 dB (D/U ratio)
Spurious response rejection 70 dB
Adjacent CH selectivity 60 dB (12.5 kH ch)
Blocking 84 dB
DO output level L = GND, H = 2.8 V
RSSI rising time 30 ms (25 kHz shift), 50 ms (at power on)
Time until valid Data-out 50 ms (25 kHz shift), 70 ms (at power on)
RSSI out TBD mV at -100 dBm, TBD mV at -110 dBm

Specifications are subject to change without prior notice

LMD-400-R 458-462 MHz

Common  
Item Specification
Applicable standard EN300113
Communication form Half-duplex
Emission class F1D
Modulation GFSK
Frequency 458 to 462 MHz *
Channel spacing 12.5 kHz Channel programmable
Frequency stability +/- 2.5 ppm (-20 to + 60 degree C)
Aging rate +/- 1 ppm / year
Data rate 4,800 bps max
(Pulse width min. 200 us, max 15ms)
Operating temperature range -20 to + 60 degree C
(Storage : -30 to + 75 degree C)
TX / RX switching time 15 ms typ. (DI vs DO)
Supply voltage 3.0 to 5.5 V
Supply current 52 mA (TX), 42 mA (RX)
Dimension 30 X 50 X 9 mm
Weight 25 g

* Ask for other specific frequency in 400 MHz with 4 MHz coverage

   
Transmitter Part
Transmitter type PLL synthesizer
RF output power 10 mW at 50 ohm (25 degree C)
Deviation 2.4 kHz (PN9, 4800bps)
DI input level L = GND, H = 3 V to Vcc
   
Receiver Part
Receiver type Double superheterodyne
IF 21.7 MHz (1st), 450 kHz (2nd)
Maximum input level 10 dBm
Receiver sensitivity - 110 dBm typ. (12 dB SINAD)
  - 110 dBm typ. (BER 1%)
Co-channel rejection - 7 dB (D/U ratio)
Spurious response rejection 70 dB
Adjacent CH selectivity 60 dB (12.5 kH ch)
Blocking 84 dB
DO output level L = GND, H = 2.8 V
RSSI rising time 30 ms (25 kHz shift), 50 ms (at power on)
Time until valid Data-out 50 ms (25 kHz shift), 70 ms (at power on)
RSSI out TBD mV at -100 dBm, TBD mV at -110 dBm

Specifications are subject to change without prior notice

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