[Elecraft] Fw: (K3) RTTY offset ?
Adriano
adriano.perazio at uol.com.br
Wed Jan 26 06:56:39 EST 2011
----- Original Message -----
From: "Adriano" <adriano.perazio at uol.com.br>
To: "Richard Ferch" <ve3iay at storm.ca>
Sent: Wednesday, January 26, 2011 9:53 AM
Subject: Re: [Elecraft] (K3) RTTY offset ?
> Hello Greg & Richard
>
> Sry i forgot mention:
> Software is MMVARI & MixW
> On the radio i´m using DATA A mode as described on a tutorial i read don´t
> know where.
>
> Tnx for the help
>
> PY2ADR
> ----- Original Message -----
> From: "Richard Ferch" <ve3iay at storm.ca>
> To: <elecraft at mailman.qth.net>
> Sent: Tuesday, January 25, 2011 9:48 PM
> Subject: Re: [Elecraft] (K3) RTTY offset ?
>
>
>> Hello Adriano,
>>
>> You didn't say whether you were using FSK D or AFSK A, or what software
>> you were using. I will assume that when you say "on the scope" you mean
>> on the waterfall in software such as MMTTY.
>>
>> If your radio is in FSK D, then it can receive on any frequency within
>> the filter bandpass, but it can only transmit on one frequency - the one
>> corresponding to the PITCH setting. If you click on a signal in the
>> waterfall to receive it, the frequency you choose in the software's
>> waterfall will probably not be the same as the one the radio will
>> transmit on. If you use the K3's MONitor function to listen to your
>> transmitted signal, you can hear whether the transmitted and received
>> frequencies are the same.
>>
>> Depending on the software you are using and its capabilities, there are
>> advanced methods to use mouse-tuning and AFC in FSK RTTY, but the
>> simplest solution to this problem is never to use clicking in the
>> waterfall to find a signal when you are using FSK. If you are CQing, you
>> can use AFC to let your receiving software tune in callers who come back
>> slightly off-frequency, but when you are planning to call someone else
>> who is CQing you should turn AFC off. In MMTTY, you can use the HAM
>> button to ensure that your receive frequency will be the same as your
>> transmit frequency. You should configure the HAM default to be the same
>> as the radio's PITCH setting.
>>
>> If your radio is in AFSK A, it can transmit on the same frequency it
>> receives on, although the best frequency for both transmitting and
>> receiving is the one in the PITCH setting and the HAM button. If you are
>> using MMTTY software the easiest way to ensure that your transmit and
>> receive frequencies are the same is to turn NET on. With NET on you can
>> safely use mouse-clicking to tune in a signal to work. However, if you
>> are calling CQ you should turn NET off, and use the HAM button before
>> your first transmission to establish your transmit frequency. If the
>> other station comes back off-frequency you can use AFC or a mouse-click
>> to copy the other station's signal, but as soon as the QSO is completed
>> you should click on the HAM button to return to your original transmit
>> frequency.
>>
>> 73,
>> Rich VE3KI
>>
>>
>> PY2ADR wrote:
>>
>>> Trying to config k3 on digi modes but i noted a "offset" between rx and
>>> tx ...
>>> When i find a sig on the scope i click on it and the rx is ok. Then i go
>>> tx and the \
>>> station comes back in another qrg. Or when i call cq the stations comes
>>> back in \
>>> another qrg....
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