K3 and MFJ 1026 hookup

[VE3WDM]

Good morning,
I have read some posts on using the KXV3A's Rec out and Rec in ports along side the MFJ 1026 noise canceling unit. There is a relay that activates during transmit and receive in the K3. Apparently the MFJ's T/R switching is not good as the KXV3A's. Just wanted to know the exact cabling that is used to accomplish this??
Thanks very much for your time
Mike
VE3WDM
http://ve3wdm.blogspot.com
     
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[Vic K2VCO]

The KXV3 has an RX IN and RX OUT connector. When the K3's RX ANT button is pushed, the
line from the K3's t/r switch to the receiver input is connected to the RX OUT connector,
and the RX IN connector goes to the the receiver input.

Therefore, you connect a separate noise antenna to the canceler noise antenna input, the
canceler's 'transceiver' connector to the KXV3 RX IN connector, and the canceler's
'antenna' connector to the KXV3 RX OUT connector.

The result is to pass the already switched receiver input (which ultimately goes to the
main antenna) through the canceler into the receiver. You must push the RX ANT button on
the K3 for this to work.

On 1/29/2011 5:33 AM, Mike Weir wrote:

>
> Good morning, I have read some posts on using the KXV3A's Rec out and Rec in ports
> along side the MFJ 1026 noise canceling unit. There is a relay that activates during
> transmit and receive in the K3. Apparently the MFJ's T/R switching is not good as the
> KXV3A's. Just wanted to know the exact cabling that is used to accomplish this?? Thanks
> very much for your time Mike VE3WDM http://ve3wdm.blogspot.com
> ______________________________________________________________ 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

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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[VE3WDM]

That great Vic thanks very much, one last question...Am I able to use the MFJ's internal antenna with this setup or do I have to hook up via the ext receiving antenna only on the MFJ unit?
Thanks
Mike
VE3WDM

[Vic K2VCO]

You can use the built-in whip or you can connect an external noise antenna. Just don't
make it resonant or put it too close to the transmitting antenna if you run high power!

On 1/29/2011 9:54 AM, VE3WDM wrote:
>
> That great Vic thanks very much, one last question...Am I able to use the
> MFJ's internal antenna with this setup or do I have to hook up via the ext
> receiving antenna only on the MFJ unit?
> Thanks
> Mike
> VE3WDM

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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[VE3WDM]

Thanks again Vic, no problem with power here it's always QRP or max 10 watts.
Mike
VE3WDM

[Julian, G4ILO]

Personally I didn't find the built-in whip to be any use at all. But YMMV.

Vic K2VCO wrote

You can use the built-in whip or you can connect an external noise antenna. Just don't
make it resonant or put it too close to the transmitting antenna if you run high power!

[Vic K2VCO]

It can be useful if you have a noise source right in the shack, like a computer. I used a
short dipole installed near the power drop to my house, where most of the noise seemed to
be coming from.

On 1/29/2011 12:28 PM, Julian, G4ILO wrote:

>
> Personally I didn't find the built-in whip to be any use at all. But YMMV.
>
>
> Vic K2VCO wrote:
>>
>> You can use the built-in whip or you can connect an external noise
>> antenna. Just don't
>> make it resonant or put it too close to the transmitting antenna if you
>> run high power!
>>
>>
>
>
> -----
> Julian, G4ILO. K2 #392  K3 #222.
> * G4ILO's Shack - http://www.g4ilo.com
> * KComm - http://www.g4ilo.com/kcomm.html
> * KTune - http://www.g4ilo.com/ktune.html
>

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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[VE3WDM]

Here is something I was also wondering could I utilize the AUX on the sub receiver with the MFJ 1026 either along side the KXV3A in out connections? The reason for asking this is I use diversity receive and was not sure if I could incorporate the MFJ unit as well?
Thanks
Mike
VE3WDM