Elecraft

K3S Split Rx Ant2/Tx Ant1

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ae4pb

K3S Split Rx Ant2/Tx Ant1

Hi,

I've read the owners manual and Fred Cady's K3 manual. Playing with the
rig and still can't figure this out.

Desired end result:

When working split I want to receive on Ant2 and transmit on Ant1. I have
the ATU option installed.

Thanks in advance.

Jerry Moore

CDXA, INDEXA, SKCC, Fists

AE4PB, K3S - S.N. 010324

http://www.qrz.com/db/AE4PB

An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and
Patriotic.

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Phil Anderson

Re: K3S Split Rx Ant2/Tx Ant1

Hi Jerry. I have a K3, about 1 year old. I'm not sure which
configuration you are using; so, this may or may not help. I do recall
that when you add the second RX (receiver) you have the choice of
attaching the second RX to the AUX port instead of the RX2 ANT port. I
chose the AUX port and thereby had to reroute one of the internal coax
jumpers over to the AUX port. I use a Beverage antenna with the AUX port
and thereby receive in diversity mode - hearing audio in my left ear
from ANT1 and hearing from AUX port, my antenna 2, in my right ear.
Works very well.

I do recall having some confusion in getting that to work out. I went
back and forth between Cady's book and the K3 manual, often reading
between the lines. If you'd outline your setup in a bit more detail and
email me, I'd be happy to work with you to figure it out.

73, Phil, W0XI, Lawrence, KS
[hidden email]

> [hidden email] <mailto:[hidden email]>
> Sunday, October 25, 2015 10:51 AM
>
>
> Hi,
>
> I've read the owners manual and Fred Cady's K3 manual. Playing with the
> rig and still can't figure this out.
>
> Desired end result:
>
> When working split I want to receive on Ant2 and transmit on Ant1. I have
> the ATU option installed.
>
>
>
> Thanks in advance.
>
>
>
>
>
> Jerry Moore
>
> CDXA, INDEXA, SKCC, Fists
>
> AE4PB, K3S - S.N. 010324
>
> http://www.qrz.com/db/AE4PB
>
> An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and
> Patriotic.
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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Don Wilhelm-4

Re: K3S Split Rx Ant2/Tx Ant1

In reply to this post by ae4pb

Jer,

It all depends on how you have your K3S physically configured.

If you do not have the subRX installed, that is not possible - although
you can connect whatever antenna you now have on ANT2 to the RX ANT
input and select the RX antenna.

If you do have the sub-receiver, then you can use the ANT2 for receive
on the subRX by selecting the AUX input. Take a look at the antenna
routing Figure 4 on page 45 of the K3S manual. As indicated, the subRX
AUX antenna input can be connected to either the KAT3 (solid line) or to
the BNC AUX RF jack (dotted line). Which one is actually connected to
your subRX AUX input is a decision that is made at the time you built
the K3S and added the KRX3. Factory built K3S are normally connected to
the BNC jack, but you can add the cable to connect it to the KAT3.

If you connected the AUX input on the sub to the TMP jack on the KAT3,
then when you select the AUX antenna, the sub will be connected to the
non-transmit antenna. In other words, if the main is using ANT1, the
sub will listen to ANT2. If you switch the main to ANT2, the sub will
listen to ANT1.

73,
Don W3FPR

On 10/25/2015 11:51 AM, [hidden email] wrote:

>
>
> Hi,
>
> I've read the owners manual and Fred Cady's K3 manual. Playing with the
> rig and still can't figure this out.
>
> Desired end result:
>
> When working split I want to receive on Ant2 and transmit on Ant1. I have
> the ATU option installed.
>
>
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

ae4pb

Re: K3S Split Rx Ant2/Tx Ant1

Sounds good, I guess I'll re-wire it internally as necessary.

-----Original Message-----
From: Don Wilhelm [mailto:[hidden email]]
Sent: Sunday, October 25, 2015 2:08 PM
To: [hidden email]; [hidden email]
Subject: Re: [Elecraft] K3S Split Rx Ant2/Tx Ant1

Jer,

It all depends on how you have your K3S physically configured.

If you do not have the subRX installed, that is not possible - although you
can connect whatever antenna you now have on ANT2 to the RX ANT input and
select the RX antenna.

If you do have the sub-receiver, then you can use the ANT2 for receive on
the subRX by selecting the AUX input. Take a look at the antenna routing
Figure 4 on page 45 of the K3S manual. As indicated, the subRX AUX antenna
input can be connected to either the KAT3 (solid line) or to the BNC AUX RF
jack (dotted line). Which one is actually connected to your subRX AUX input
is a decision that is made at the time you built the K3S and added the KRX3.
Factory built K3S are normally connected to the BNC jack, but you can add
the cable to connect it to the KAT3.

If you connected the AUX input on the sub to the TMP jack on the KAT3, then
when you select the AUX antenna, the sub will be connected to the
non-transmit antenna. In other words, if the main is using ANT1, the sub
will listen to ANT2. If you switch the main to ANT2, the sub will listen to
ANT1.

73,
Don W3FPR

On 10/25/2015 11:51 AM, [hidden email] wrote: