LMR1 modules equivalent, vhf narrow band fm low cost multi channel radio modules.
Figure 1: LMT1 transmitter and LMR1 receiver
* Conforms to EN 300 220-3 and EN 301 489-3
* High performance double superhet. PLL synthesizer with TCXO
* qua.
where existing wideband modules have insufficient range, or where low cost multi-channel operation is needed without com.
– LMT1
Pin Name 1a Vcc
2a 0V 3a TXE 4a TXD 5a No pin
Function 3.1
– 15V power supply (10mW) 4.1V
– 15V power supply (100mW)
Ground Transmit Enable (active low)
DC coupled input for 3V CMOS logic. Rin=.
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