On Jul 8, 2009, at 7/8 8:58 AM, Jim Reisert AD1C wrote:
> I'm just curious because I don't own a K3, but if you use the paddles
> to send RTTY, does the K3 do USOS or not?
I don't know about the encoder (transmit direction). But if the K3 op
uses the on-board decoder, and if you send
<figs>599<space>123
to the K3, it will "print" as
"599 123"
I.e., the K3's decoder does not unshift into LTRS mode upon receiving
a <space> character.
[This is why you always want two transceivers in the shack, so you can
do these silly experiments :-). You also want the software to be
malleable so you can modify it to send explicit Baudot streams. HI HI]
If you want to be copied by these K3 RTTY contest teetotalers, either
make sure your USOS transmit implementation *explicitly* sends a
<LTRS> with a <space> if the space is preceded by a number and
followed by an alphabet (e.g., 599 OR).
Or, simply use dashes instead of spaces (e.g., 599-OR"). To
paraphrase Phil N8PS, "if there is no space, there is nothing to
unshift."
(Actually the "teetotalers" that are using the on-board decoders are
likely to be hardcore contesters on other modes, but slumming in RTTY
contests without using FSK modems.)
73
Chen, W7AY
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