[K3] Sub-receiver with one antenna jack

[John Harper AE5X]

I have a fairly bare-bones K3, ie no provision for a 2nd antenna and no ATU installed.

If I install the sub-rx, what is the penalty in terms of MDS due to the fact that both
the main and sub rx will share the same antenna?

Thanks/73,

John AE5X
http://www.ae5x.com/blog

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[Nr4c]

The subrec includes an aux antenna jack (BNC) so you will still have
possibility of two antennas.  There is also the REC antenna on the KX3Va
module (if installed).

...bill  nr4c.

-----Original Message-----
From: John Harper [mailto:[hidden email]]
Sent: Sunday, February 05, 2012 10:31 PM
To: Elecraft
Subject: [Elecraft] [K3] Sub-receiver with one antenna jack

I have a fairly bare-bones K3, ie no provision for a 2nd antenna and no ATU
installed.

If I install the sub-rx, what is the penalty in terms of MDS due to the fact
that both
the main and sub rx will share the same antenna?

Thanks/73,

John AE5X
http://www.ae5x.com/blog

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[Bill W4ZV]

John Harper AE5X wrote

If I install the sub-rx, what is the penalty in terms of MDS due to the fact that both
the main and sub rx will share the same antenna?

3 dB splitter loss when sharing the same antenna.

73,  BIll

[Bill K9YEQ]

Ron,

I know so many on 75 meters SSB think they need to run receivers of any
brand with the Pre-amps on with no attenuation.  Probably they want to say
how strong everyone is?  I run generally with Pre off and attenuator on
160-40 meters SSB.

73,
Bill
K9YEQ


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Ron D'Eau Claire
Sent: Sunday, February 05, 2012 10:34 PM
To: 'Bill Conkling'; 'John Harper'; 'Elecraft'
Subject: Re: [Elecraft] [K3] Sub-receiver with one antenna jack

And I'd expect NO penalty for sharing the same antenna except, perhaps, on 6
meters. The K3's noise figure is already quite low. Indeed, watching the
e-mails posted here, it seems that a lot of K3 owners fail to turn on the
attenuator on the lower bands and some even run the pre-amp which degrades
the receiver performance even though it makes the bands sound "louder".

Ron AC7AC

-----Original Message-----
The subrec includes an aux antenna jack (BNC) so you will still have
possibility of two antennas.  There is also the REC antenna on the KX3Va
module (if installed).

...bill  nr4c.

-----Original Message-----
From: John Harper [mailto:[hidden email]]
Sent: Sunday, February 05, 2012 10:31 PM
To: Elecraft
Subject: [Elecraft] [K3] Sub-receiver with one antenna jack

I have a fairly bare-bones K3, ie no provision for a 2nd antenna and no ATU
installed.

If I install the sub-rx, what is the penalty in terms of MDS due to the fact
that both the main and sub rx will share the same antenna?

Thanks/73,

John AE5X
http://www.ae5x.com/blog

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

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Please help support this email list: http://www.qsl.net/donate.html

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