[RTTY] Length-of-Exchange utility

[Robert Chudek - K0RC]

Yes! WHAT HE SAID!

I got carried away with all the possibilities of shortening the exchange 
that I forgot to say "Thank You" and "Nice Work"!

73 de Bob - KØRC in MN


On 3/29/2011 6:02 PM, Jeff Blaine wrote:
> Excellent work David.  Very cool app...
>
> 73, Jeff ACØC
> www.ac0c.com
>
> -----Original Message-----
> From: Bill
> Sent: Tuesday, March 29, 2011 5:07 PM
> To: rtty at contesting.com
> Subject: Re: [RTTY] Length-of-Exchange utility
>
> I ran that and after careful analysis I realized that if I keep my
> serial numbers below 10 i.e.
> w1xx 599 10  w9ol cq
>
> I will be much faster and have more time to make more qsos.
> No wonder I haven't won a contest lately, I've been INTENTIONALLY TRYING
> to make my serial number multi digit!!!!
>
>
> On 3/29/11 4:34 PM, David Westbrook wrote:
>> Here's a little web utility to compare different exchanges such as "599 0123
>> 0123" vs "599-0123-0123"  and display the real (including shifts) length and
>> the real time (in seconds) it would take to transmit.  Assumes 45.5 baud,
>> and has the stop bits and Un-Shift-On-Space (USOS) as options.
>>
>>           http://dwestbrook.net/projects/ham/rtty-length
>>
>> What sparked this was Chen's comment in the recent "RTTY" thread re: AL9A's
>> "slow" rtty:
>> ~~~~~~~~~~
>> "'Someone' in the contesting community should whip up a Java tool to
>> figure out the number of seconds an exchange takes when you enter the
>> actual exchange and states such as number of stop bits and USOS
>> condition. Perhaps such a tool should even be embedded into RTTY contest
>> programs. Most RTTY ops know how to count them, but it could be an eye
>> opener for folks who are not familiar with stop bits and LTRS/FIGS shifts.
>>    Often, it is not a matter of choosing a shorter exchange for the human
>> reader, but on how you create the exchange for a machine."
>> ~~~~~~~~~~
>>
>> So, enjoy!
>>
>> Comments/Issues/Suggestions welcome here or directly at dwestbrook at gmail.com
>> Source code (perl using a regexp approach) is free and linked to from the
>> tool.
>>
>> Chen -- thanks again for the tech support!!
>>
>> --david
>> KJ4IZW
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>>