433.93 etc ...

[John Kent]

Has anyone used square wave modulation frequencies of up to 50kHz with these
modules or sine wave audio frequencies ?. Thank you .... John

 

[john jardine]

"John Kent" <moonshadow@ntlworld.com> wrote in message
news:uNF6d.96$oG3.89@newsfe6-win.ntli.net...

Has anyone used square wave modulation frequencies of up to 50kHz with
these
modules or sine wave audio frequencies ?. Thank you .... John


All I'm seeing is "Re: 433.93 etc ...", so ignore comment if not relevent

All depends on the module.
The cheap Tx module I used for my electric gate, starts to badly fall over
beyond 7k bits per sec. (logic level Tx i/ps give better clarity at the Rx
end).
regards
john

 

[dd]

In message <cjfagr$can$1@news5.svr.pol.co.uk>, john jardine
<john@jjdesigns.fsnet.co.uk> writes

"John Kent" <moonshadow@ntlworld.com> wrote in message
news:uNF6d.96$oG3.89@newsfe6-win.ntli.net...
Has anyone used square wave modulation frequencies of up to 50kHz with
these
modules or sine wave audio frequencies ?. Thank you .... John


All I'm seeing is "Re: 433.93 etc ...", so ignore comment if not relevent

All depends on the module.
The cheap Tx module I used for my electric gate, starts to badly fall over
beyond 7k bits per sec. (logic level Tx i/ps give better clarity at the Rx
end).
regards
john


50kHz modulation BW takes sidebands outside system capability

--
dd