Evidently, snagging a 500 BPS tone burst and getting all the numbers right is not easy in software. Better check and make sure you got it right so you don't mix up a nuclear war with an Amber alert Code Error Checking For best receiver decoder performance it is recommended that a software algorithm confirm that at least two of the three header code transmissions are identical before declaring a match or valid code and performing the preprogrammed task. If this test fails, do a bit-by-bit check of the three transmissions and attempt to reconstruct a valid code by comparing the bits in each position in each header code transmission and accepting as the valid bit that bit which appears in two of the three header code transmissions Oh - that sounds easy . There are some IC decoders but they are pretty fancy - perhaps some of the radios that offer this feature use one of these chips to do most of the signal processing in the radio Example CMX7031 www.cmlmicro.com/products/twoway/previews/ <http://www.cmlmicro.com/products/twoway/previews/cmx7031pp_4.pdf> cmx7031pp_4.pdf Ken From: app_rpt-users-bounces@qrvc.com [mailto:app_rpt-users-bounces@qrvc.com] On Behalf Of Brian Wingfield Sent: Thursday, July 22, 2010 6:56 PM To: app_rpt-users@qrvc.com Subject: Re: [App_rpt-users] can App_Rpt decode SAME weather codes? The url to the S.A.M.E. spec is below. Doesn't look like there is any magic to it. http://www.nws.noaa.gov/directives/010/pd01017012b.pdf On Thu, Jul 22, 2010 at 2:37 PM, Ken <ke2n@cs.com> wrote: Well - there is a windoz program that does it http://www.brothersoft.com/tonedecoder.net-standard-edition-211249.html but it is rather pricy ... apparently it is hard to do ... Ken -----Original Message----- From: Jim Duuuude <telesistant@hotmail.com> To: jrorke@cogeco.ca; app_rpt mailing list <app_rpt-users@qrvc.com> Sent: Thu, Jul 22, 2010 2:28 pm Subject: Re: [App_rpt-users] can App_Rpt decode SAME weather codes? as opposed to DIFFERENT weather alert protocol... or perhaps SIMILAR..... :-) :-) JIM WB6NIL
Date: Thu, 22 Jul 2010 13:12:14 -0400 From: jrorke@cogeco.ca To: app_rpt-users@qrvc.com Subject: [App_rpt-users] can App_Rpt decode SAME weather codes?
Hi All just wondering if App_Rpt can or does support of decoding the SAME weather alert protocol and signaling??
Thanks,
Jon VA3RQ
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