[Elecraft] [K3] Diversity and CW?

[Radio Amateur N5GE]

On Tue, 29 Dec 2009 17:20:53 +1300, "Gary Hinson" <Gary at isect.com>
wrote:

>> Does CW benefit from diversity reception? Can anyone relate any
>> experiences with such improvement and some details on their setup
>> including filters/settings?
>
>Absolutely Jim!

Gary,

I have a 30m GP here with 3 radials at ten feet.  I use that antenna
for TX on 30m.  For RX I use a one wavelength (about 98 feet) beverage
with the terminated end toward Europe.  Working EU using the beverage
works pretty good even though it is short.  It has less noise than the
GP and when using diversity RX it is helpful and I find that it works
on other bands too...

It sounds like you have the space for a longer beverage on 30m.  DX
Engineering
http://www.dxengineering.com/Sections.asp?ID=32&DeptID=12#Top has some
hardware to make beverage construction simpler.  You might take a look
at beverages.  They are also described in the ARRL Antenna books.

73,

Tom, N5GE

n5ge at n5ge.com
K3 #806 with SUB RX, K3 #1055, PR6,
XV144, XV432, KRC2,
W1, 2 W2's and other small kits

1 K144XV on order

http://www.n5ge.com
http://www.swotrc.net

>The more important issue is to have sufficiently different antennas for main RX and diversity RX,
>ideally with both spatial and polarization diversity.  I have been using my normal TX antennas for
>the main RX, all about 100m from the shack on a remote switch, and a single 30m wire loop for
>diversity RX, about 10m from the shack in the opposite direction.  The 30m loop works best on 30m,
>of course, but helps to some extent on all other bands except 20m where it's too badly mismatched.
>A full set of monoband diversity RX antennas would be lovely, and I guess a decent multiband
>vertical would work OK too, but meanwhile the 30m loop does the job ... Or rather it did until a
>storm broke the line, and I put up a 12m TX loop instead!  I miss diversity and plan to reinstate
>the 30m loop, moving the 12m loop across to the TX end.
>
>73
>Gary  ZL2iFB
>
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