----- Original Message ----
From: "rein...@ix.netcom.com" <rein...@ix.netcom.com>
To: digitalradio@yahoogroups.com
Sent: Tue, March 9, 2010 5:11:30 PM
Subject: Re: [digitalradio] Re: Question for experts
Hello Jose,
Multiple Frequency Shift Keying, OK, but you really
did not answer my question, I think.
Suppose I replaced the modulation device with a filtered
piano ( no harmonics ) a microphone.
I am serious, trying to find out the question we can't address
here any longer.
I used a x-tal oscillator.
Limited my BW to some 300 Hz
73 Rein W6SZ
-
If you are doing what I think, you have just built a complicated CW
transmitter. Start with a crystal oscillator, go to a ballanced modulator and
then filter out one sideband.
This is similar to how cw is often generated in a SSB transceiver.
