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Re: [english 97%] LF: 136kHz RX

from [Roger Lapthorn] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: Re: [english 97%] LF: 136kHz RX
From: Roger Lapthorn <[email protected]>
Date: Sat, 3 Feb 2018 20:49:48 +0000
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What I meant was the noise floor rises dramatically when charging the shack laptop's battery. That is why I use the (charged) internal batteries when looking on 136kHz and 472kHz.

73s
Roger G3XBM

On 2 February 2018 at 20:24, Roger Lapthorn <[email protected]> wrote:
Yes, basically the noise level drops dramatically when charging the internal battery pack. I am sure I can get the external noise floor lower. This has got worse in the last few years.

73s
Roger G3XBM

On 2 February 2018 at 19:53, DL3JJ HOME <[email protected]> wrote:
Hallo Roge !
 
Is the noise of your power supply so strong that you use battery ?
 
73
Ralf
 
Sent: Friday, February 02, 2018 7:53 PM
Subject: [english 97%] LF: 136kHz RX
 
After sorting out the issue with my shack PC battery not charging, I am now monitoring 136kHz WSPR RX and 136kHz OPERA. The shack PC battery (to reduce noise) should be good until late tonight.
 
I'll probably NOT be looking after about 2300z.
 
Let's hope I spot some tonight.
 
73s
Roger G3XBM


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