[Elecraft] What does the frequency readout mean?
Pete Smith N4ZR
n4zr at contesting.com
Wed Feb 20 07:55:18 EST 2013
I'm sorry I misled everyone with my mistake, writing "RIT". Imeant the
*main tuning knob*, so both transmit and receive frequencies are being
changed. Try re-reading the question this way:
Same setup, but listening to a signal on the air. "Beat note" is ~500
Hz. I turn the main tuning knob 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?
What I'm trying to understand is this. I've clicked on a cluster spot.
So have a lot of other people, so they are all in a pile +/- 10 Hz. If
I tune down (frequency and beat note, both) what does the station I'm
calling hear? Is my perceived beat note also lower in his RX, or is it
higher? I think it is the former, butwould like confirmation or correction.
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.
On 2/20/2013 6:13 AM, Gary Gregory wrote:
> Richard,
>
> That was a Great answer...I learnt something today to.
>
> Gary
>
> On 20 February 2013 15:52, Richard Fjeld <rpfjeld at embarqmail.com
> <mailto: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>
> [mailto: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
>
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> --
> *Gary - VK1ZZ
> Skype: Gary.VK1ZZ
> Motorhome Portable
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