Build your own USB tuner . Questions about hardware

v0.7b Timing lock

Postby M5TXJ » Sat 9 Dec 2017 02:05

Hi

I've installed V0.7b and have an observation. Receiving my Portsdown on 437MHz at 333Ks with V0.7b I'm getting a timing lock indication of 57-63%, with V0.6d I get the same unless I select "Low SR" when I get 100% timing lock. With V0.7b "Low SR" cant be selected below 300Ks so getting 100% is not possible. Am I missing something?

73 Dave.
M5TXJ
 
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Re: v0.7b Timing lock

Postby F6DZP » Sat 9 Dec 2017 10:49

Hello,

I am not at home presently and cannot do any test, but can say that with the Serit NIM, there is not really a "low SR" mode.
Using a Serit NIM, the only thing that changes the "low SR" button in the v0.6 is the way the measure are made, not the way it can receive or not.
So in the V07, that changes the % of lock seen, but not the effective possibility to lock.

I will check again that for the next version

Jean-Pierre F6DZP
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Re: v0.7b Timing lock

Postby M5TXJ » Sat 9 Dec 2017 18:38

Many thanks Jean-Pierre
M5TXJ
 
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