CQ WW CW & a K3

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CQ WW CW & a K3

.hank.
I just got home from CQ WW CW ..... a bunch of us got together at a
major station and we each picked a band and used our own calls.
10 M - no operator showed up and I don't think the band did either.
15 M - a brand new Omni VII
20 M - me and my K2/100 w/DSP
40 M - AC8W and my other K2/100
80 M - K8AQM and his K2/100
160 M - N8EA and a borrowed K3/100 with no serial number!
The K1/100 had the 2.7, 1.8 and 500 filters as I remember.

I got to sit in front of the K3 for a little over an hour and came away
with two observations ..... Well - three.
1.  Best damn receiver I've sat in front of!
2.  The small VFO knob had absolutely no drag.  I don't know if they are
all like that, or if the guy who built it didn't do something.  I don't
know his call or if I heard it I don't remember it.
3.  This is the long, hard to explain thing.
Let's say I am listening to 1830.000 to a DX station.  VFO A
The DX station says QSX 1829 so I set VFO B to 1829.00
The RIT is on and is + 1 KHZ - so A reads 1830.100
Now I want to listen to the pile on the TX frequency, so I press REV.
Now my TX freq reads 1829.100 and my RX freq on the bottom reads 1830.00
I find where the last station worked is and release the REV button.  The
TX freq is going to be 100 Hz low!
Seems to me that the RIT should stay with the frequency and not the
location of that frequency.
As I saw it this afternoon that could cause me to not be on the TX
frequency where I want to be transmitting.

But, like I said in Nr 1 - best receiver I've ever used.

72  73    Hank    K8DD
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RE: CQ WW CW & a K3

Greg - AB7R
Hank,

I did not see anywhere in your post that you put the K3 into SPLIT.  When
the DX said QSX down 1 you could have simply gone into split mode and tuned
VFO-B with the B knob to 1.829.  Then use your REV button to find the
current station working the DX and tune to that freq using VFO-A while still
holding REV.  Remember, VFO-A will be your RX freq and VFO-B your TX freq.

73
Greg
AB7R


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]]On Behalf Of hank k8dd
Sent: Sunday, November 25, 2007 7:39 PM
To: Elecraft
Subject: [Elecraft] CQ WW CW & a K3


I just got home from CQ WW CW ..... a bunch of us got together at a
major station and we each picked a band and used our own calls.
10 M - no operator showed up and I don't think the band did either.
15 M - a brand new Omni VII
20 M - me and my K2/100 w/DSP
40 M - AC8W and my other K2/100
80 M - K8AQM and his K2/100
160 M - N8EA and a borrowed K3/100 with no serial number!
The K1/100 had the 2.7, 1.8 and 500 filters as I remember.

I got to sit in front of the K3 for a little over an hour and came away
with two observations ..... Well - three.
1.  Best damn receiver I've sat in front of!
2.  The small VFO knob had absolutely no drag.  I don't know if they are
all like that, or if the guy who built it didn't do something.  I don't
know his call or if I heard it I don't remember it.
3.  This is the long, hard to explain thing.
Let's say I am listening to 1830.000 to a DX station.  VFO A
The DX station says QSX 1829 so I set VFO B to 1829.00
The RIT is on and is + 1 KHZ - so A reads 1830.100
Now I want to listen to the pile on the TX frequency, so I press REV.
Now my TX freq reads 1829.100 and my RX freq on the bottom reads 1830.00
I find where the last station worked is and release the REV button.  The
TX freq is going to be 100 Hz low!
Seems to me that the RIT should stay with the frequency and not the
location of that frequency.
As I saw it this afternoon that could cause me to not be on the TX
frequency where I want to be transmitting.

But, like I said in Nr 1 - best receiver I've ever used.

72  73    Hank    K8DD
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Re: CQ WW CW & a K3

Vic K2VCO
In reply to this post by .hank.
hank k8dd wrote:

> Let's say I am listening to 1830.000 to a DX station.  VFO A
> The DX station says QSX 1829 so I set VFO B to 1829.00
> The RIT is on and is + 1 KHZ - so A reads 1830.100
> Now I want to listen to the pile on the TX frequency, so I press REV.
> Now my TX freq reads 1829.100 and my RX freq on the bottom reads 1830.00
> I find where the last station worked is and release the REV button.  The
> TX freq is going to be 100 Hz low!
> Seems to me that the RIT should stay with the frequency and not the
> location of that frequency.
> As I saw it this afternoon that could cause me to not be on the TX
> frequency where I want to be transmitting.

I'm assuming that you did have SPLIT on and that you meant that the RIT
was set to +100 Hz, not +1 kHz.

You're right that the K3 thinks of RIT as part of VFO A. And note that,
unlike some other rigs, you can't choose to receive on VFO B -- you
always receive on A and you have a choice to transmit on A or B (of
course, you can copy the frequency from B to A and then receive on it;
but you are still using VFO A to receive.

What you did is a funny scenario, since if you were using split, you
would tune the DX station with VFO A and not use RIT. RIT would not help
  in this situation.

If the RIT "stayed with the frequency" then when you pressed REV, A
would read 1829 and B would be 1830.1. This is probably harmless with
REV, since you wouldn't operate the RIT while holding it. But suppose
you did A/B. Then what would happen when you clear the RIT? Should B go
back to 1830? Should A go to 1828.9? Should A/B work differently in this
respect than REV?
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
K3 no. 00007
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Re: CQ WW CW & a K3

AJSOENKE
In reply to this post by .hank.
Item 3) - The VFO B Should have 2 felt washers to adjust drag. See Assembly
Manual any REV. Even if the washers are in place the knob may need to be
adjusted closer to faceplate to increase drag.

Al WA6VNN



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Re: CQ WW CW & a K3

k6dgw
In reply to this post by Vic K2VCO
Vic K2VCO wrote:

> hank k8dd wrote:
>
>> Let's say I am listening to 1830.000 to a DX station.  VFO A
>> The DX station says QSX 1829 so I set VFO B to 1829.00
>> The RIT is on and is + 1 KHZ - so A reads 1830.100
>> Now I want to listen to the pile on the TX frequency, so I press REV.
>> Now my TX freq reads 1829.100 and my RX freq on the bottom reads 1830.00
>> I find where the last station worked is and release the REV button.  The
>> TX freq is going to be 100 Hz low!
>> Seems to me that the RIT should stay with the frequency and not the
>> location of that frequency.
>> As I saw it this afternoon that could cause me to not be on the TX
>> frequency where I want to be transmitting.
>
> I'm assuming that you did have SPLIT on and that you meant that the RIT
> was set to +100 Hz, not +1 kHz.
>
> You're right that the K3 thinks of RIT as part of VFO A. And note that,
> unlike some other rigs, you can't choose to receive on VFO B -- you
> always receive on A and you have a choice to transmit on A or B (of
> course, you can copy the frequency from B to A and then receive on it;
> but you are still using VFO A to receive.
>
> What you did is a funny scenario, since if you were using split, you
> would tune the DX station with VFO A and not use RIT. RIT would not help
>  in this situation.
>
> If the RIT "stayed with the frequency" then when you pressed REV, A
> would read 1829 and B would be 1830.1. This is probably harmless with
> REV, since you wouldn't operate the RIT while holding it. But suppose
> you did A/B. Then what would happen when you clear the RIT? Should B go
> back to 1830? Should A go to 1828.9? Should A/B work differently in this
> respect than REV?

Wow!  And I thought partial differential equations was hard to
understand ;-)

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2008 Cal QSO Party  4-5 Oct 08
- www.cqp.org
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Re: CQ WW CW & a K3

Geoffrey Mackenzie-Kennedy
In reply to this post by Vic K2VCO
 Vic K2VCO  <[hidden email]> wrote:

> And note that, unlike some other rigs, you can't choose to receive on VFO
> B -- you always receive on A and you have a choice to transmit on A or B
> (of course, you can copy the frequency from B to A and then receive on it;
> but you are still using VFO A to receive.

Hi Vic,

Perhaps a daft question, but assuming that the DX is working SPLIT, that I
am NOT using RIT nor XIT and that I am listening to the DX with VFO A.  If
I now want to listen to the calling stations which would normally be done
VFO B, which also controls my Tx frequency when listening to the DX on VFO
A, and then reverting back to VFO A to listen to the DX before transmitting,
if I cannot use VFO B for receiving and have to use VFO A does this mean
that when I call after finding a 'hole' I would then risk transmitting on
the DX's frequency? If I understand correctly what you mean by copying 'the
frequency' from B to A, would that not slow down one's ability to change Tx
frequency rapidly in a pile-up situation?

I must be missing something.

73,
Geoff
GM4ESD

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Re: CQ WW CW & a K3

Vic K2VCO
Geoffrey Mackenzie-Kennedy wrote:

> Perhaps a daft question, but assuming that the DX is working SPLIT, that
> I am NOT using RIT nor XIT and that I am listening to the DX with VFO
> A.  If I now want to listen to the calling stations which would normally
> be done VFO B, which also controls my Tx frequency when listening to the
> DX on VFO A, and then reverting back to VFO A to listen to the DX before
> transmitting, if I cannot use VFO B for receiving and have to use VFO A
> does this mean that when I call after finding a 'hole' I would then risk
> transmitting on the DX's frequency? If I understand correctly what you
> mean by copying 'the frequency' from B to A, would that not slow down
> one's ability to change Tx frequency rapidly in a pile-up situation?

If your rig is in SPLIT you are listening to the DX on VFO A and the K3
will transmit on B.

The instant you press the REV button, the *contents* of the VFOs are
swapped and you can listen to the pileup on A (while the REV button is
held, the K3 will not transmit, by the way).

The instant you release the button, the contents are swapped again and
when you transmit it will be on the pileup frequency.

Incidentally, 'the contents' includes the bandwidth. What I like to do
when I hear some DX is to set the bandwidth wide (if it is not already),
press A->B and then SPLIT. Then I reduce the bandwidth to best hear the DX.

At this point I can hold REV for as long as I want to search the pileup
with the bandwidth wide. When I hear the guy the DX is working, I let go
of the button and I go back to hearing the DX with a narrow bandwidth.

The trick is to think of VFO A as the receiver, and the swapping options
as copying the contents of the VFOs, not 'swapping VFOs'.

The REV button is the only button on the K3 which switches between two
states in its up and down positions! All the others use the press/hold
convention that is familiar from the K2.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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