Waking up RF receiver

Bram_K

Hi,

A pulse train of 010101010 is generated with a FLUKE·pulse generator, the frequency and the width of 0 and 1 could be ajusted,
the amplitude of the pulse is set to 4.75 volt, Vcc is 5.1 volt to Gnd, the pulse then connected to RF transmitter data input,
then at the RF receiver data output signal is observed with an osciloscope,
well, the pulse freq. then is varied from 110 bit/sec to 19,200 bit/sec, the pulse train is maintained square,
but the RF receiever seems sleep too deep, no signal at all,

The pulse then sent periodically, about 6 byte at a time, with 100 ms space, again RF receiver still.

The RF / TX module is the parallax module,

Perhaps there a trick to wake the receiver up, please some one help me, quite a lot people says·theirs·is working,
but mine is not, a bought 2 RF TX, 2 RF RX module, the receiver signal is measured good, the distance on test
only·300 mm ( 1 feet),

Thanks in advance
Kurnia Brahmana
·

Franklin

What do you have pin 2 tied to?

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
- Stephen

Bram_K

Dear Stephen,

Pin2 the PDN pin is connected to Vcc through 1 k R,

or just left hang, as it is optional in the data sheet.

thanks