[GreenKeys] Mark Question

[Duncan Brown]

Eugene,

What model number Harris modem?

I don't know of any Harris/RF Comm modems that would shut off the tone 
between characters.  And anything H/RFC made would have been for use 
with radio communications.

So it sounds like there is a problem with the modem.

73,

Duncan
K2OEQ
H/RFC 1970-89

On 14-Jan-22 21:59, W2HX wrote:
>
> Hi all,
>
> I’m still working on getting set up for RTTY at my QTH. I am planning 
> to start with a glass tty set up, then get my M28s wired into the set 
> up. I am using a 1980’s vintage Harris modem that converts RS-232 to 
> audio tones and vice versa. The way it is setup, when I type, I hear 
> the mark/space transitions for each character. However, no audio is 
> produced between the characters. Meaning no mark tone would be 
> transmitted between characters.
>
> Question: How big of a deal is this when doing RTTY? I know that some 
> TUs might not recognize that there is neither a space nor a mark audio 
> frequency present, and may produce garbage on the screen/printer. Or, 
> do most operators use a mark-hold function while receiving that would 
> prevent (reduce) the garbage?
>
> Bottom line, should I go with what I have? Or work hard to make sure a 
> mark tone is present at all times between characters?
>
> 73 Eugene W2HX
>
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