Great, Can't wait for the True FSK, I am like Ron and prefer FSK over AFSK. This will fit in nicely with my implementation of FSK receive (see pix at http://www.hamsdr.com/Profile.aspx?id=42).
Thanks Bob, Steve - K5FR -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert McGwier Sent: Tuesday, August 02, 2005 12:13 PM To: [EMAIL PROTECTED] Biz Subject: [Flexradio] "Real" FSK Real FSK is possible with outboard programs but will involve some serious surgery. Basically, the "straight keyer" must be modified to send space rather than silence when the data pin not on. This will involve the construction of a new block of code fsk.c to do this. Otherwise, it will call the same functions and change the tone. We need to use the data pin since the RTTY programs do not bit bang this. The data will be clocked to us by the RTTY app calling the real or virtual com port and loading its "send" register with the data. I do not yet know if the virtual com port can be opened for baudot as the 16550 UART can. This will be in some future version but requires more work than simply flipping a switch. I sent Eric RTTY mode enabled. This enabled RTTY receive where you can set the variable filter to what you like. The transmit filter is the LSB and the receive filter is the users discretion. The LSB transmit filter allows you to move your tones up with your AFSK code (MMTTY, Writelog, etc.). When in RTTY mode, the leveler for the microphone is out of the circuit. You may use this for PSK as well. Reverse is not yet enabled. This will be in 1.4.5 probably next week. I have other fish to fry for a week. Bob _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
