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Re: [RTTY] Really

To: duberger.miousse81@globetrotter.net
Subject: Re: [RTTY] Really
From: k3mm@verizon.net
Date: Sun, 31 Jan 2010 19:10:01 -0600 (CST)
List-post: <rtty@contesting.com">mailto:rtty@contesting.com>
>> In ur #3, there is logic to support the use of dashes between the 
>> numbers...it usually eliminates a Figures shift character before each "001", 
>> so in theory it's quicker.  When using advanced front-ends such as RITTY, 
>> repeated character patterns are used to make an educated guess as to the 
>> correct number when errors are received and it doesnt matter whether you use 
>> dashes or space+Figures...it will figure it out, so shorter is better.  
>> However, I've found that most operators do not have this kind of 
>> sophistication and have a hard time even translating "QWERTYUIOP" into 
>> "1234567890" when the Shift character is missed or garbled.  So I've pretty 
>> much given up on using the dashes and put up with the slower space+Figures 
>> sequence.

3:  Use spaces to seperate your numbers, ex: 599 001 001
    There is no real reason to use hyphens. Do not use
    periods, commas, slant bars. In RTTY it is preferable
    to send the 3 digits, it's easier to click on 001 than 1.
    In normal conditions the exchange is sent twice but the
    RST only once. In poor conditions exchange may be sent
    3 times,  ex: 599 001 001 001 
    Do not add more spaces between words to make line longer.
   
>>  In the following example, you want to confirm with "Hiscall" TU "Urcall" CQ 
>> or just "Hiscall" TU .   If you send TU first, whoever it is that thinks 
>> they worked you will be gone, so it's a waste of time to send their call at 
>> that point.

7:  If you are in RUN-CQ mode, reply with (Hiscall) exch.(Hiscall)
    If there are many callers, QRM, it is important to confirm to 
    whom you have sent the exchange. ex: Hiscall 599 001 001 Hiscall
    Then, confirm with (TU Hiscall de URCALL CQ)   to continue.
 
>> Wouldnt it be great if we could get everyone to follow # 8 part one??  



8:  In S&P mode never send your exchange to the CQ'ing station
    until he has acknowledged your call and sent his exchange first!

>> This next part is only correct if your call is not busted.  If he gets the 
>> call wrong, you have the option of just sending your call again if it's 
>> highly questionable, or sending your call again a couple of times and then 
>> the exchange if you are sure it was for you.  Then it is up to the RUN 
>> station to acknowledge your correct call before he moves on.  If he doesnt, 
>> you must call him again until he acknowledges your correct call.  Otherwise, 
>> you will lose not only that QSO but another 1 or 2 in points during log 
>> checking.

    Dont send hiscall but only yours,  ex: DE CALL CALL
    then reply with only your exchange, ex:  TU 599 002 002
    (TU say it all, QSL, TU, 73)  Again, the DE is optional.

>> ...and wouldnt it be great if we could everyone to use the actual Mark 
>> frequency as the spot/pass frequency, rather than reading their LSB or USB 
>> dial?

>>  ...and one more tip about running AFSK:  Please use only "high tones" and 
>> 170hz shift.  The standard Mark tone is 2125 hz.  The center of your 
>> passband should be 2210 hz.  If you use low tones, you run the risk of 
>> transmitting audio harmonics since they will end up within your transmit 
>> passband.  Help keep the bands clean by keeping your tones high in the 
>> passband and watching your mic and ALC levels.  Also note that a lot of the 
>> radio-based FSK is actually AFSK in disguise, so it is not immune.  Sure, 
>> run AFC and NET while S&P, but tune for high tones so your tones will also 
>> be high on the return.

73, Ty K3MM
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