[K3] K3 preamp sufficient for K9AY?

[Jim AB3CV]

I'm considering adding a K9AY antenna for 160m and 80m. For those of you
who are using one with the K3 do you find the K3 preamp sufficient or is
another preamp required?

My K9AY would be no more than 100ft of coax away so I wouldn't expect a lot
of additional loss.

Thanks

Jim ab3cv
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[Craig Smith]

Unless you live in a very quiet area, you won't need a preamp, Jim.   My K9AY is smaller than average and even with its lower sensitivity I have never needed an external preamp.  In fact, I normally have the K3 internal preamp OFF on 80 and 160.  Even use the attenuator or back off the RF gain sometimes.

73  Craig   AC0DS

>

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[Doug Turnbull]

Jim,
    My experience is the same as Craig's.   I have an ICE and also an Array
Solutions Preamp.   Neither is ever used.   When using the K9AY on TB, the
K3 Preamp is normally off.  During a contest the attenuator might even be
turned on.   Similarly I have found no need for an external preamp when
using Beverage antennas.   Previously I used a five foot square magnetic
loop receiving antenna and for it, the preamp in my then Orion II was used.


     I think you will like the K9AY, it is not a Beverage but it is a very
useful antenna.   Good Luck.

               73 Doug EI2CN

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Craig Smith
Sent: 18 November 2011 04:51
To: Jim Miller
Cc: Elecraft Reflector
Subject: Re: [Elecraft] [K3] K3 preamp sufficient for K9AY?

Unless you live in a very quiet area, you won't need a preamp, Jim.   My
K9AY is smaller than average and even with its lower sensitivity I have
never needed an external preamp.  In fact, I normally have the K3 internal
preamp OFF on 80 and 160.  Even use the attenuator or back off the RF gain
sometimes.

73  Craig   AC0DS

>

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[Geoffrey Downs-3]

The K3 preamp will be more than adequate, Jim. I made an rx loop based on
G3LNP's refinement of the K9AY (see Oct 2010 QST) and find that no external
preamp is needed.

73 to all

Geoff
G3UCK

-----Original Message-----
From: Jim Miller

I'm considering adding a K9AY antenna for 160m and 80m. For those of you
who are using one with the K3 do you find the K3 preamp sufficient or is
another preamp required?


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[Jim AB3CV]

Responses have been unanimous that a supplemental preamp beyond the
internal K3 one is unnecessary.

Thanks all!

Jim
ab3cv
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[Fausto Coletti]

Try unplugging and replugging the antenna from the receiver,
if you notice an increase in noise you do not need to further amplify
the signal. A further amplification worsens the dynamic of the receiver.
Only if you're lucky and live in a little noisy QTH you need a preamplifier
at K9AY antenna or if you have a high lossy coax between the antenna and
the receiver.

73, Fausto IK4NMF


----- Original Message -----
From: "Jim Miller" <[hidden email]>
To: "Elecraft Reflector" <[hidden email]>
Sent: Friday, November 18, 2011 2:29 AM
Subject: [Elecraft] [K3] K3 preamp sufficient for K9AY?

> I'm considering adding a K9AY antenna for 160m and 80m. For those of you
> who are using one with the K3 do you find the K3 preamp sufficient or is
> another preamp required?
>
> My K9AY would be no more than 100ft of coax away so I wouldn't expect a
> lot
> of additional loss.
>
> Thanks
>
> Jim ab3cv
> ______________________________________________________________
> 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
>
>
> -----
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> 19/11/2011
>

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