Sub vs Split

[Howard..K2HK]

I'm sure this is obvious to most but not to me. I am blaming it on separation anxiety since my K3 only recent returned from Aptos.
I have the KRX3 installed and work split using the Sub Rx. I lock vfo B on the DX and use vfo to find a tx frequency.  When might using the split button be indicated? What are the differences?

Howard..K2HK

HK

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[Mike K2MK]

Hi Howard:

It makes you feel like you're doing something wrong, doesn't it.  Make sure
nobody else is in the shack.

With my prior radio, an FT1000D, the sub receiver was not quite as good as
the main receiver. (Different filters and no audio peak filter). So it was
logical to receive with the main and use the sub in split mode to hunt for a
good place to transmit. But now with the K3 the sub is exactly the same. So
I say, go for it.

I have found a few minor negatives to this practice. If I hit a spot off of
my logging program, the spot goes to VFO A which might not be what I want.
When computer logging, the recorded frequency is from VFO A not B. Direct
frequency entry, and a few other features only affect VFO A (at least for
now). Also you can't use diversity reception while doing this. You have to
be unlinked.

I guess we'll soon be requesting that Wayne provide other uses for the SPLIT
button.

73,
Mike K2MK



Howard K2HK
Sat, 14 Feb 2009 09:55:53 -0800

I'm sure this is obvious to most but not to me. I am blaming it on
separation
anxiety since my K3 only recent returned from Aptos.

I have the KRX3 installed and work split using the Sub Rx. I lock vfo B on
the
DX and use vfo to find a tx frequency.  When might using the split button be
indicated? What are the differences?

Howard..K2HK

 

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[Bill W4ZV]

K2MK wrote

Also you can't use diversity reception while doing this. You have to
be unlinked.

You can use Split in Diversity, but you must use the REV button to tune the pileup.  It's like using Split with one RX but you're receiving in Diversity using both RXs.  I always LOCK the DX frequency in case I accidentally hit a knob at the wrong time.  When you REV, the other VFO is NOT locked so you can zero beat your TX in the pileup.

73,  Bill

[Mike K2MK]

Hi Bill:

Howard was using his VFO B as a fixed frequency receiver and he was tuning
VFO A to listen and change his TX frequency. He was not using SPLIT and he
could not have been using diversity. He had to be unlinked. So he always had
the DX station in his right ear.

What you're describing is using VFO A plus diversity to listen to the DX
station and using VFO B as your split transmit frequency. This is a normal
split approach plus diversity. The DX station is always in your left ear and
mostly in your right ear until you press REV. Then you can spin VFO A to
change and listen to your transmit frequency. This method works and requires
two hands.

Another approach is to toggle BSET. With BSET activated, you will now hear
VFO B in your right ear. You can then change your transmit frequency by
spinning VFO B. Only one hand is required while your other is on the paddle
or keyboard. Toggle again to go back to diversity in your right ear.

73,
Mike K2MK



Bill W4ZV
Sat, 14 Feb 2009 13:04:58 -0800


K2MK wrote:
>
> Also you can't use diversity reception while doing this. You have to
> be unlinked.
>

You can use Split in Diversity, but you must use the REV button to tune the
pileup.  It's like using Split with one RX but you're receiving in Diversity
using both RXs.  I always LOCK the DX frequency in case I accidentally hit a
knob at the wrong time.  When you REV, the other VFO is NOT locked so you
can zero beat your TX in the pileup.

73,  Bill
 

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