Re: LF: T/A OPDS

To:	[email protected]
Subject:	Re: LF: T/A OPDS
From:	Stefan Schäfer <[email protected]>
Date:	Sat, 19 Oct 2013 22:24:55 +0200
Authentication-results:	mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of [email protected]) smtp.mail=[email protected]
Delivered-to:	[email protected]
In-reply-to:	<9B05FD086F7D43BCB2856D8AD6BF2485@White>
References:	<000701cecb29$d06ee7f0$6401a8c0@JAYDELL> <[email protected]> <002001cecb35$90568ea0$6d01a8c0@DELL4> <[email protected]> <[email protected]> <005401cecb51$fb859bf0$6d01a8c0@DELL4> <[email protected]> <[email protected]> <003101cecbab$78a2e2b0$6401a8c0@JAYDELL> <[email protected]> <[email protected]> <C6FD126FE3284F95A6ED7213B3C0618B@White> <[email protected]> <001d01cecc56$bb771380$6401a8c0@JAYDELL> <003b01cecc5a$562ce9b0$6401a8c0@JAYDELL> <9EBF60108805460E920141D8F0B47E04@White> <000b01cecc5f$0e3421a0$6401a8c0@JAYDELL> <0E38A9ECFD4D42FC98B7C1A320D49BC9@White> <[email protected]> <[email protected]> <9B05FD086F7D43BCB2856D8AD6BF2485@White>
Reply-to:	[email protected]
Sender:	[email protected]
User-agent:	Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3

Hello Markus,

Am 19.10.2013 21:36, schrieb Markus Vester:

BTW In my other posting I hadn't explained the last dB number in the opds result line. This describes the quality of the match to the callsign template, ie how many dBs the highest peak in the cross-correlation function exceeds its average power, which comes from noise and autocorrelation sidelobes. The range is from about 22 dB for a perfect signal, down to a chosen threshold of 15 dB where false positives start to appear occasionally.

OK, understood.

Another question for a better OPDS understanding: Is the decode performance of the program also a function of the number of call signs in the list? Example: If i go to add any valid amateur radio callsign in the list, will decodes (close to the limit) become more unlikely?

73, Stefan/DK7FC

<Prev in Thread]	Current Thread	[Next in Thread>
Re: LF: T/A OPDS, (continued) Re: LF: T/A OPDS, Markus Vester Re: LF: T/A OPDS, jrusgrove Re: LF: T/A OPDS, Markus Vester LF: T/A OPDS, jrusgrove Re: LF: T/A OPDS, Graham Re: LF: T/A OPDS, Markus Vester Re: LF: T/A OPDS, jrusgrove Re: LF: T/A OPDS, John Andrews Re: LF: T/A OPDS, Stefan Schäfer Re: LF: T/A OPDS, Markus Vester Re: LF: T/A OPDS, Stefan Schäfer <= Re: LF: T/A OPDS, Markus Vester LF: T/A OPDS, jrusgrove Re: LF: T/A OPDS, Markus Vester Re: LF: T/A OPDS, John Andrews Re: LF: T/A OPDS, Stefan Schäfer Re: LF: T/A OPDS, Markus Vester Re: LF: T/A OPDS, Stefan Schäfer LF: T/A OPDS ... and more, jrusgrove Re: LF: T/A OPDS ... and more, John Andrews Re: LF: T/A OPDS ... and more, John Andrews

Previous by Date:	LF: RE: XRS/2 into AK - pot of Gold?, hvanesce
Next by Date:	Re: LF: JT9 QSO on 475kHz?, Tobias DG3LV
Previous by Thread:	Re: LF: T/A OPDS, Markus Vester
Next by Thread:	Re: LF: T/A OPDS, Markus Vester
Indexes:	[Date] [Thread] [Top] [All Lists]