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Re: 847 desencing



I also use a mast mounted Landweir preamp.  With the antennas 12 feet apart
I experience no de-sense problems at all on the downlink using the 847, even
up to 100 watts.  I did however with the 736 when 25 watts was exceeded
using a PA.


73

John
N2HMM



----- Original Message -----
From: "malcolm.hall2" <malcolm.hall2@ntlworld.com>
To: <amsat-bb@AMSAT.Org>
Sent: Sunday, October 22, 2000 11:08 AM
Subject: [amsat-bb] 847 desencing


> Hi Gang
>
> If I use my masthead preamp(Landweir) with the 847 I experience de-sencing
> on the 70cm's downlink
> This does not apply if I use the internal preamp in the rig or if I use a
> BNOS preamp in the shack.
>
> When using a 736R with the Ant's stacked vertically using the
Landweir....no
> problems.The problems seems to come when the ant's are stacked horizontal
>
> To add to the confusion ,Terry G1WPR has severe de-sencing with a Landweir
> pre amp in the shack(ant's stacked horizontal)using a FT736R)
>
> Interesting!!
>
> Malc
> G7NFO
>
> Oh to be young again!
>
>
>
>
> ----
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>

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