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Re: LF: K7PO testing 8270.0

To: "[email protected]" <[email protected]>
Subject: Re: LF: K7PO testing 8270.0
From: "[email protected]" <[email protected]>
Date: Thu, 22 Feb 2018 06:31:04 -0500
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Stefan
 
Carrier disappears in show_rawsyms3b.exe during daylight files.  
 
File start time / Carrier S/N / decode
 
2221 / 13.36
0021 / 13.44 
0221 / 14.65 
0421 / 12.22 
0621 / 9.70 
0821 / no decode, carrier no longer visible
 
Still it is good to recommend against exactly 8270.
 
Jay W1VD
 
 
----- Original Message -----
From: DK7FC <[email protected]>
Reply-To: <[email protected]>
Sent: 2/22/2018 4:53:48 AM
Subject: Re: LF: K7PO testing 8270.0



Am 22.02.2018 10:16, schrieb DK7FC:
Be careful, it could be that your GPS 1 PPS leaves a 'fence' of 1 Hz sidebands in your signal stream, at least when looking deeply into the noise. To avoid this, it is sometimes better to avoid transmitting on integer Hz frequencies.
With "To avoid this..." i mean of course a pretended detection.
The really avoid 'this', a better decoupling between the right and left channel is necessary.

It is just a thought. Maybe your detection is real. But there is always that little uncertainty when TXing carriers on integer frequencies...

73, Stefan
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