[Elecraft] What does the frequency readout mean?
Gary Gregory
vk1zzgary at gmail.com
Wed Feb 20 06:13:46 EST 2013
Richard,
That was a Great answer...I learnt something today to.
Gary
On 20 February 2013 15:52, Richard Fjeld <rpfjeld at embarqmail.com> wrote:
> Pete, N4ZR
>
> There have been some good answers for you. (I saved some to help others.)
> My answer(s) is to the way I read your question(s).
>
> The 'pitch' is the tone you will hear in your earphones, or speaker, on
> both receive and transmit (cw sidetone). It is nicely done in the K3.
>
> BTW, the 'monitor' knob adjusts the cw sidetone level as I recall. I
> haven't changed it in a couple years.
>
> Assuming you are in CW mode:
> --First, you have selected the 'pitch' that you like to hear.
> --You have 'CWT' on.
> --You tune a CW signal near enough to see a bar appear on the 'CWT' scale.
> --Press 'spot' and the radio automatically tunes the station in to your
> selected tone.
> --The signal will also be centered in the filter, and centered on the
> indicator.
>
> Once you get used to the tone you have selected, you will be able to tune
> well to that tone without using 'spot', or without looking at the display
> if you are rushed.
> However, the CWT indicator is your guide.
>
> And finally, you said,
> "I turn the RIT so that the received signal is
> lower frequency - say 200 Hz. I transmit. What does the station on the
> other end hear, assuming he is also using USB-CW? Does my "beat note" go
> up
> in his receiver, or down?"
>
> As others have said, the RIT does nothing to your transmit. But it does
> change your receive frequency, so that it changes the tone you hear. Not
> to be confused with the 'pitch' control. The 'pitch' control only selects
> the pitch you like to hear when the signal is centered in your filter. From
> then on, you want to tune the receiver to a tone of that pitch, or let the
> radio do it automatically for you.
>
> As for what the station on the other end hears, that is up to that
> operator, who will tune to one side of your carrier until he/she hears a
> tone that is suitable.
>
> If you are working a station with a radio that drifts in frequency, you
> will often need to make a correction to the tone you hear by using your
> RIT. That is it's function.
>
> It was a good question. I think you will enjoy it as you understand the
> workings.
> Rich, n0ce
>
>
> ----- Original Message -----
> From: Ron D'Eau Claire
> To: 'Pete Smith N4ZR' ; 'Elecraft List'
> Sent: Tuesday, February 19, 2013 8:58 PM
> Subject: Re: [Elecraft] What does the frequency readout mean?
>
>
> Hi Pete:
>
> The K3 reads the actual transmit carrier frequency. That's the suppressed
> carrier frequency in SSB and the actual carrier frequency in any mode
> such
> as CW in which the carrier is transmitted.
>
> Changing the pitch has *nothing* to do with this. It will be the same in
> any
> case (the K3 adjusts its internal oscillators as needed to give you the
> desired audio tone without changing the carrier frequency).
>
> To be certain, I turned on my frequency counter and checked the transmit
> carrier frequency while varying the pitch. No change.
>
> RIT means *RECEIVE* Incremental Tuning. It has nothing to do with the
> transmit frequency. Indeed, that's the whole point: allowing you to
> adjust
> the receiver frequency without changing the transmit frequency in any
> way.
>
> 73, Ron AC7AC
>
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Pete Smith N4ZR
> Sent: Tuesday, February 19, 2013 1:36 PM
> To: Elecraft List
> Subject: [Elecraft] What does the frequency readout mean?
>
> I'm having a hard time getting my head around this. My radio is on
> 3507.02 USB-CW, with a 500 Hz Pitch setting. I change the Pitch setting
> to
> 300 Hz, and the display still reads 3507.02. What is this frequency?
> The
> suppressed-carrier frequency plus the CW pitch? Does that mean that
> when I
> change the pitch, the radio is actually moving its frequency a little
> bit?
>
> A somewhat related question. Same setup, but listening to a signal on
> the
> air. "Beat note" is ~500 Hz. I turn the RIT so that the received
> signal is
> lower frequency - say 200 Hz. I transmit. What does the station on the
> other end hear, assuming he is also using USB-CW? Does my "beat note"
> go up
> in his receiver, or down?
>
> Sorry to be dim.
>
> --
>
> 73, Pete N4ZR
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
--
*Gary - VK1ZZ
Skype: Gary.VK1ZZ
Motorhome Portable
The Shack*
*Elecraft K3
P3 Panadapter
KPA500FT
KAT500FT**
KX3-K
*
More information about the Elecraft
mailing list