Hi thanks to all for the replies. Sorry I wasn't clear my QTH is northern
Thailand. The point I was trying to make is that even though it is a noisy
part of the season it is apparently less noisy at the European latitudes.
Unfortunately I don't have enough land to put up a 160m Xmit 4 square
---
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Tom W8JI
Sent: Friday, September 14, 2012 8:10 PM
To: Bob Kupps
Cc: topband
Subject: Re: Topband: RX epiphany?
Hi thanks to all for the replies. Sorry I wasn't clear my QTH is northern
Hi well I've only been QRV since June here but the QRN level seems
noticeably worse than my previous QTH in the W6 desert even though my
current QTH is also quiet, limited by only propagated QRN.
Doesn't 90 days seem a little short to get a feel for propagated noise and
system performance?
: Topband: RX epiphany?
Doesn't 90 days seem a little short to get a feel for propagated noise and
system performance?
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
I agree with Tom's assessment. I wouldn't be too quick to give up on your
tx 4 square. Having a tx 4 square, a 1/4 wave vertical, and an 8 circle
rx array, I find the 4 square really does hear quite well. My man made
ambient noise level is quite low (during daytime hours when the
11:37:20 AM
Subject: Re: Topband: RX epiphany?
I agree with Tom's assessment. I wouldn't be too quick to give up on your
tx 4 square. Having a tx 4 square, a 1/4 wave vertical, and an 8 circle
rx array, I find the 4 square really does hear quite well. My man made
ambient noise level
In your opinion; given a receive antenna with negative gain, at what level
does the negative gain start to come into play? -25 dBi, -35 dBI ?
There are several variables to this.
Estimating from a model:
At my house a ~ -25 dBi gain antenna system with a pattern like a good
large 8-circle,
Bob--
Just curious -- How is your reception around sunrise, when most of the
thunderstorms in the Americas are in daylight, and therefore their QRN probably
isn't reaching you?
Art, KB3FJO
On Sep 12, 2012, at 11:07 PM, Bob Kupps n...@yahoo.com wrote:
Hi well I've only been QRV since
Hi thanks to all for the replies. Sorry I wasn't clear my QTH is northern
Thailand. The point I was trying to make is that even though it is a noisy part
of the season it is apparently less noisy at the European latitudes.
Unfortunately I don't have enough land to put up a 160m Xmit 4 square
Subject: Re: Topband: RX epiphany?
Cc: topband topband@contesting.com
Hi thanks to all for the replies. Sorry I wasn't clear my QTH is northern
Thailand. The point I was trying to make is that even though it is a noisy
part of the season it is apparently less noisy at the European latitudes
Kupps n...@yahoo.com; topband topband@contesting.com
Sent: Friday, September 14, 2012 8:44 AM
Subject: Re: Topband: RX epiphany?
Bob,
with US and European stations operating top band during the winter only you
will only work them during your summer. So, you will always be subject to
higher
80/160m 8 circle RX arrays.
From: DAVID CUTHBERT telegraph...@gmail.com
To: donov...@starpower.net
Cc: Bob Kupps n...@yahoo.com; topband topband@contesting.com
Sent: Friday, September 14, 2012 8:44 AM
Subject: Re: Topband: RX epiphany?
Bob,
with US
Bob, I suggest you contact Peter XU7ACY and get his
take on working 160 DX from your area of the world.
In my contacts with him, receiving has been his
biggest problem.
Lee K7TJR OR
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
Hi well I've only been QRV since June here but the QRN level seems noticeably
worse than my previous QTH in the W6 desert even though my current QTH is also
quiet, limited by only propagated QRN. Many times I cannot copy stations
answering my CQ on 80 so it either means they are running less
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