[UK-CONTEST] 2 Station setup ideas please for CQWW

[Andy Cook, G4PIQ]

There's no need to spend a lot of money on Dunestar or ICE filters - make
your own. There are a number of designs around. I built a few sets of the
K4VX bandpass filters for M6T years ago. The 10m and 15m ones aren't great,
but give some improvement and you can build a set for a lot less than a set
of commerical ones.

Another slightly unusual approach would be to use last generation rigs with
valve PAs like a TS830S or a FT901. These (certainly the 901) have big
components in the front end with a fuse bulb which helps absorb energy from
the other station. Then they also have sharp bandpass filtering between the
pre-drivers, driver and PA and in the receiver front-end, and transmitter
broadband noise from these rigs on adjacent bands is much better than more
modern radios with broadband PAs. They don't have quite such good receivers,
but they aren't bad (use the attenuator where needed) and in reality will
cost you very few QSOs relative to a modern radio, but allow much better two
radio working - albeit without the convenience of no tune operation. An idea
if you have them lying about.

73,

Andy, G4PIQ

-----Original Message-----
From: uk-contest-bounces at contesting.com
[mailto:uk-contest-bounces at contesting.com] On Behalf Of Cooper, Stewart
Sent: 08 September 2006 09:08
To: Uk-Contest at Contesting.Com
Subject: Re: [UK-CONTEST] 2 Station setup ideas please for CQWW



Jim,
I would make up some stubs first. These alone will provide interference
rejection and are cheap. K1TTT has all you need to know on his web site. Use
good coax for them though. 73 Stewart GM4AFF


________________________________

From: uk-contest-bounces at contesting.com on behalf of Jim Balls
Sent: Thu 07/09/2006 19:52
To: Uk-Contest at Contesting.Com
Subject: [UK-CONTEST] 2 Station setup ideas please for CQWW



Hi all,

We are thinking about running a 2 station setup for CQWW SSB.

We currently have no experience of this and was looking for pointer on a
cheap and easy filtering option (I their is such a thing!).

We are looking to run lets say 20m - 10m on one setup (HFstation) and 40m -
160m on the other setup (LF Station).

Antenna's will have a separation of about 100m, we are going to run a
vertical and dipole setup for 40m - 160m on the second station tower and a
10 - 20m beam (Spider) and a 2 element Moxon for 40m on the main tower (I
guess the 40m beam will be used on the 10 - 20 m station and not the LF
station)

Both will run 400w.

Radios will be

HF station 756PROII -  TL922 In Caravan
LF Station with be Either FT990 or TS870 - 811H (with 572B tubes) In Awning

We cannot afford luxuries like the Dunestar filter setup at this point.

Any ideas guy's, Would we suffer much breakthrough etc, is it even worth
attempting?

Thanks

Jim M0CKE
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