RX antenna (K3)

[Adriano Perazio]

Hello i´m considering a rx antenna for the K3. As i do not have space
for big systems like beverage, etc, i´m thinking about this one from DX
Eng.:
 
<http://www.dxengineering.com/Parts.asp?ID=2190&PLID=220&SecID=79&DeptID
=12&PartNo=DXE-ARAV3-1PE>
http://www.dxengineering.com/Parts.asp?ID=2190&PLID=220&SecID=79&DeptID=
12&PartNo=DXE-ARAV3-1PE
Wich is a vertical one and i have space to put up 2 of them if needed.
What you guys think? It´s not a very free space and i have 90ft from my
TX antennas (lowest is 80m band).
I´m expecting less noise on the lower bands, and try the diversity rx on
K3.
What you guys think ?
 
Tnx in advance.
 
PY2ADR - Adriano
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[Craig Smith]

DX Eng makes good stuff, Adriano, and I would think this to be a good
vertical active whip.  You might want to also check out the active whip from
Clifton Labs.  It is also a high quality unit with good overload
characteristics and ability to automatically turn off during Xmit periods.
Available as a kit and much less expensive than the DX Eng, even with the
coax DC coupling unit.  I have one 50 ft away from my xmit antennas at 100 W
and have no problem.
Another possibility you might want to explore is a K9AY loop array, even if
not full size.  This will give you the advantages of less RX noise than an
active whip and significant selectable directionality on the low bands.  I
use one of these also and prefer it to the whip on 160 thru 30.  They are
commercially available, but can also be easily homebrewed.  I use a
homebrewed downsized K9AY and the active whip together as a diversity RX
system with the K3.
73   Craig  AC0DS



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[Greg - AB7R]

The DXE NCC1 is also a nice unit that gives the ability to adust the phase
between two rx antennas.  I use one with two of the clifton labs active
antennas and also installed two of Jack's new HP filters in the NCC1 (It has
provisions for filters but DXE decided not to build the filters).

73
Greg
AB7R



On Tue, Jan 11, 2011 at 7:21 AM, Craig D. Smith <[hidden email]>wrote:

> DX Eng makes good stuff, Adriano, and I would think this to be a good
> vertical active whip.  You might want to also check out the active whip
> from
> Clifton Labs.  It is also a high quality unit with good overload
> characteristics and ability to automatically turn off during Xmit periods.
> Available as a kit and much less expensive than the DX Eng, even with the
> coax DC coupling unit.  I have one 50 ft away from my xmit antennas at 100
> W
> and have no problem.
> Another possibility you might want to explore is a K9AY loop array, even if
> not full size.  This will give you the advantages of less RX noise than an
> active whip and significant selectable directionality on the low bands.  I
> use one of these also and prefer it to the whip on 160 thru 30.  They are
> commercially available, but can also be easily homebrewed.  I use a
> homebrewed downsized K9AY and the active whip together as a diversity RX
> system with the K3.
> 73   Craig  AC0DS
>
>
>
> ______________________________________________________________
> 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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[David Cutter]

Craig

I'm most interested in your system and I wonder if you could describe it
further.   What size is your loop and do you use a separate phasing unit
before injecting the result into the K3 rx input?

David
G3UNA

> Another possibility you might want to explore is a K9AY loop array, even
> if
> not full size.  This will give you the advantages of less RX noise than an
> active whip and significant selectable directionality on the low bands.  I
> use one of these also and prefer it to the whip on 160 thru 30.  They are
> commercially available, but can also be easily homebrewed.  I use a
> homebrewed downsized K9AY and the active whip together as a diversity RX
> system with the K3.
> 73   Craig  AC0DS
>

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