[K3] N1MM SO2V and slow TX focus switching?

[Frank R. Oppedijk-2]

Hi group,

This weekend I've for the first time tried out N1MM SO2V with my K3
with sub-receiver, in the ARRL DX contest CW. The combination works
great. There is one peculiar thing, though.

When RX focus is on one VFO and TX focus is on the other, and I press
a Fn key, N1MM will move TX focus to the VFO where the RX focus is.
This does work, but the timing is awkward:
- I see that N1MM switches TX focus (the red dot moves from the one
entry window to the other, and on the K3 I see the SPLIT symbol turn
on or off [depending on whether the TX focus moves to VFO B or VFO A])
- Then nothing happens for about 1.5 seconds
- Then N1MM sends the message stored in the Fn key that I pressed

What's causing the 1.5 seconds time delay? Any pointers?

73,

Frank PA4N

P.S. When I manually move the TX focus to the VFO having RX focus
(using Alt-Left arrow or Alt-Right arrow) followed immediately by an
Fn key, transmission starts immediately. (And yes, the radio is ready
for transmit: I've many times switched TX focus manually using this
method, followed by F4 (=PA4N), and each time the other station got
my call okay; if the radio wouldn't have been ready, I'd except the
other stations mistaking for e.g. GA4N).

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[Barry N1EU]

Frank R. Oppedijk-2 wrote

When RX focus is on one VFO and TX focus is on the other, and I press
a Fn key, N1MM will move TX focus to the VFO where the RX focus is.

What's causing the 1.5 seconds time delay? Any pointers?

I am able to repeat what you're seeing Frank.

However, in all my SO2V contesting over the past 6 years with N1MM, I have to admit to virtually never changing RX focus alone ("\" key) - I just don't use this feature so I never noticed this.  I have keyboard macros and in such a case as you describe, I would probably hit ctrl-right/left before hitting the function key (out of habit) and this eliminates the delay.

73,
Barry N1EU

[Bill Hammond]

I replaced the K3 DSP board yesterday.  So far, I am delighted with the new noise level.  I have always been a bit disappointed in the old noise level/quality preferring the K2 receiver in the noise department.  

The replacement DSP card came with no instructions.   if you replace yours, I suggest that you download the "KRX3 Installation manual" .  The first 15 or so pages will get you where you need to be.  I also added the KXV3A board to my K3 just in case I can't live without the P3 when it arrives.  :)

I took a few pictures of the operation available here:

http://www.flickr.com/photos/ak5x/

You are welcome to look at all of the photographs but the first ten shots deal with the replacement including a short video of the test after installation.

Now, off to the mail with the old DSP card.

Bill Hammond-AK5X
[hidden email]
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K3 #69
K2/100 #4637
K1 #2033
KX1 #1023
T1




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