K3 RX Ant - first try - nothing

[hf4me]

I have not tried to use Rx ant previously.  

K3 (sn 1442) Manual Rev D pf 43 - I have KXV3 and KAT3.  

Antenna connected to BNC on KXV3 and Rx ant selected on main receiver.  

No receive.  

If I connect same antenna to Ant 1 or Ant 2 - it works very well.

Is there a configuration setting to enable the receive antenna?

What am I missing?

 

It seems there was a decision to make when I assembled it that had to do
with antenna configuration and I cannot find it in the manual. Also it may
have been in a configuration I had before all the add in components were
available.  Which assembly component manual would that have been a part of?
Would that have anything to do with this problem?  Where can I find the
explanation?

 

TIA, 73, Jim KG0KP

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[Bob Wilson, N6TV]

On Tue, Sep 5, 2017 at 10:07 PM, Jim Miller <[hidden email]>
wrote:

> I have not tried to use Rx ant previously.
>
> K3 (sn 1442) Manual Rev D pf 43 - I have KXV3 and KAT3.
>
> Antenna connected to BNC on KXV3 and Rx ant selected on main receiver.
>
> No receive.
>

Connect the RX antenna to the BNC labeled "RX ANT IN", not the BNC labeled
"AUX".  Tap RX ANT to listen to the RX ANT on MAIN.

If you have the Sub RX (KRX3), you can connect the RX antenna to the BNC
labeled AUX.  Enable the SubRx (tap SUB), then HOLD the RX ANT button to
toggle the SUB RX ANT between MAIN and AUX.

There is no way to listen to the AUX BNC connector on the MAIN receiver,
only the Sub RX.

I assumes you have CONFIG:KRX3 set to ANT=BNC.  If you have CONFIG:KRX3 set
to ANT=ATU *and* you have wired the radio that way (there are two antenna
wiring options for the SubRx), then the SubRx can listen on ANT1 or ANT2,
whichever is not being used by the MAIN, instead of AUX.

It seems there was a decision to make when I assembled it that had to do
> with antenna configuration and I cannot find it in the manual.


This is best explained in the KRX3 Installation on Operation manual
<http://www.elecraft.com/manual/KRX3%20Subreceiver%20Installation%20and%20Operation%20Rev%20F1.pdf>,
page 26.

If you have two transmit antennas, say an all band vertical and a
multi-band dipole, the ANT=ATU wiring option allows you to transmit on
whichever one is hearing best on any particular signal, or you can use
diversity reception and listen on both, one in each ear.

73,
Bob, N6TV
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[Don Wilhelm]

Jim,

If you connect an antenna to either ANT1 or ANT2 (select the right one),
then tap RX ANT the signal should drop drastically.  Do that test first.
You should see the RX ANT icon in the display.

Then with the RX ANT still selected, move the antenna to the jack
labeled RX ANT IN (not RX ANT OUT) and you should once again hear the
signal at full strength.

If not you have a problem with the KXV3 and should contact support.

If you have the SUB RX, the situation becomes more complex, so do not
select SUB when trying this testing.  We can deal with that later if
necessary.

73,
Don W3FPR

On 9/6/2017 1:07 AM, Jim Miller wrote:

> I have not tried to use Rx ant previously.
>
> K3 (sn 1442) Manual Rev D pf 43 - I have KXV3 and KAT3.
>
> Antenna connected to BNC on KXV3 and Rx ant selected on main receiver.
>
> No receive.
>
> If I connect same antenna to Ant 1 or Ant 2 - it works very well.
>

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[markmusick]

Also, make sure the KXV3 is set to "ON" in the configuration menu.

Mark, WB9CIF

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Bob Wilson, N6TV
Sent: Wednesday, September 6, 2017 6:40 AM
To: Jim Miller <[hidden email]>; Elecraft Reflector
<[hidden email]>
Subject: Re: [Elecraft] K3 RX Ant - first try - nothing

On Tue, Sep 5, 2017 at 10:07 PM, Jim Miller <[hidden email]>
wrote:

> I have not tried to use Rx ant previously.
>
> K3 (sn 1442) Manual Rev D pf 43 - I have KXV3 and KAT3.
>
> Antenna connected to BNC on KXV3 and Rx ant selected on main receiver.
>
> No receive.
>

Connect the RX antenna to the BNC labeled "RX ANT IN", not the BNC labeled
"AUX".  Tap RX ANT to listen to the RX ANT on MAIN.

If you have the Sub RX (KRX3), you can connect the RX antenna to the BNC
labeled AUX.  Enable the SubRx (tap SUB), then HOLD the RX ANT button to
toggle the SUB RX ANT between MAIN and AUX.

There is no way to listen to the AUX BNC connector on the MAIN receiver,
only the Sub RX.

I assumes you have CONFIG:KRX3 set to ANT=BNC.  If you have CONFIG:KRX3 set
to ANT=ATU *and* you have wired the radio that way (there are two antenna
wiring options for the SubRx), then the SubRx can listen on ANT1 or ANT2,
whichever is not being used by the MAIN, instead of AUX.

It seems there was a decision to make when I assembled it that had to do
> with antenna configuration and I cannot find it in the manual.


This is best explained in the KRX3 Installation on Operation manual
<http://www.elecraft.com/manual/KRX3%20Subreceiver%20Installation%20and%20Op
eration%20Rev%20F1.pdf>,
page 26.

If you have two transmit antennas, say an all band vertical and a multi-band
dipole, the ANT=ATU wiring option allows you to transmit on whichever one is
hearing best on any particular signal, or you can use diversity reception
and listen on both, one in each ear.

73,
Bob, N6TV
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delivered to [hidden email]

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