FSK for RTTY

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  • Question
  • Updated 4 years ago
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Wiring up my modem into the db15 plug I noticed that pin 4 can be used for CW?? and FSK??

If so when . Or How ??

There presently are modems out there that can provide this type of control.
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Ed baker

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Posted 5 years ago

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Walt

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One more vote ( as before, at least I am consistent) for FSK RTTY ( and some matching Rx RTTY specific dual/peak filters) -  It is cleanest way to do RTTY, and would complete the 'total contest radio' concept.

My hopes for the future of this radio series - I think it has the capacity to be the meanest contest machine in the hobby - which is why I bought my 6500. 
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Alex - DH2ID, Elmer

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You also have my vote for FSK RTTY and dual bandpass filters.
(Edited)
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Bill N5TU

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Please add FSK RTTY capability ... it is the most stable means of creating RTTY signals.  Many of us would be most grateful.  :-)

Bill, N5TU
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Ken - NM9P, Elmer

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FSK or AFSK on Transmit may not be all that big a difference for the 6000 series, but if it is implemented well, the possibility of overdriving the transmitter with AFSK is eliminated.

On Receive, however, and for general "interface" issues, I think there is a real possibility for improvement, including the following that have already been mentioned:
1) RTTY frequencies centered in the receive filter automatically,
2) CLick tune that doesn't need to be adjusted with RIT/XIT offsets,
3) Implementation of dual peak RTTY filters,
4) Accurate frequency display of mark and space tones,
5) Accurate reporting of RTTY signals to spotting networks,
6) Accurate frequency transition when clicking on spotted RTTY signals.
7) Correct TX/RX frequency indication on panadapter when using XIT/RIT.

Most of these functions have work-arounds now, by calculating RIT/XIT shifts, changing filter upper/lower frequencies, etc, but it takes a couple of minutes to make all the changes to get ready for RTTY operation.

A dedicated RTTY mode that already does this would be a welcome addition.

Ken - NM9P
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k3Tim

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Overdrive - a good point.  One would hope we are a better class of operators to let something like that occur in our stations.

Items 1-3 and 5-9 are handled by XIT / RIT and a profile.
Item #4 - Dual Peak = does it really help?  I am skeptical.

(congrats on your LP ! )

_..--
k3Tim