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<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>AH! Besides answering another question I had
about the "audio standard" on Asterisk being "line level" spkr/mic
audio, you are sying the txprelim=yes is not what does it in a
RTCM? Does that still need to be set?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Sounds like you are basically "fooling" it by
telling it to generate a PL, which makes it think it is connected directly to a
modulator, hence it will pre-emphasize the audio automatically? Setting the
txctcsslevel=0 just kills the tone.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Do I have it correct now?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>ALSO,</FONT></DIV>
<DIV><FONT size=2 face=Arial> Since chan_simpleusb will not pre-emph, will
a DMK URI do it if you use the chan_usbradio to drive it?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Lets see how many other questions I can cram in
here.....</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial> I assume since I do not have an RTCM yet,
that the chan_voter is what is used for the RTCM? Even if it is NOT being
used as a voter system, just a radio interface?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thakns for the help Tim!!</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I'm learnin'</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>73 de Greg</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=tim.sawyer@me.com href="mailto:tim.sawyer@me.com">Tim Sawyer</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=kj6ko@innercite.com
href="mailto:kj6ko@innercite.com">KJ6KO</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=App_rpt-users@ohnosec.org
href="mailto:App_rpt-users@ohnosec.org">App_rpt-users@ohnosec.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 28, 2013 12:46
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [App_rpt-users] RTCM
txprelim?</DIV>
<DIV><BR></DIV>Sorry, this deserves a better expansion. Sometimes I get in a
hurry.
<DIV><BR></DIV>
<DIV>Asterisk ships audio around (on the links, etc) as line-level audio (not
pre-emphasized and needs no de-epmhasis). This works out great for telephones,
computer clients, voice announcements, etc because Asterisk doesn't have to do
any filtering. After all Asterisk is a telephone PBX where you would expect
audio to be line-level (speaker/mic) audio. This leaves the
pre/de-emphasis up to app_rpt channel drivers. Chan_usbradio and chan_voter
can add pre-emphasis. Chan_simpleusb cannot pre-emphasise.
<DIV><BR></DIV>
<DIV>With chan_voter the DSP pre-emphasis is turned on by setting txctcss
= xxx.x in voter.conf. If you want pre-emphasis but no TX P/L set txctcss =
to some (any) tone and set txctcsslevel = 0.</DIV>
<DIV><BR></DIV>
<DIV>Hope that helps.</DIV>
<DIV>--</DIV>
<DIV>
<DIV apple-content-edited="true"><SPAN
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class=Apple-style-span><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium Verdana; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"
class=Apple-style-span>
<DIV
style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space">Tim<BR>:wq</DIV></SPAN></SPAN></DIV><BR>
<DIV>
<DIV>On Aug 28, 2013, at 10:26 AM, Tim Sawyer <<A
href="mailto:tim.sawyer@me.com">tim.sawyer@me.com</A>> wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite"><BASE href="x-msg://33/">
<DIV
style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space">Absolutely,
yes. That is it's normal mode. <BR>
<DIV><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-SPACING: 0px; BORDER-COLLAPSE: separate; FONT: medium Verdana; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; WORD-SPACING: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"
class=Apple-style-span><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-SPACING: 0px; BORDER-COLLAPSE: separate; FONT: medium Verdana; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; WORD-SPACING: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"
class=Apple-style-span>
<DIV
style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space">--<BR>Tim<BR>:wq</DIV></SPAN></SPAN></DIV><BR>
<DIV>
<DIV>On Aug 28, 2013, at 9:42 AM, KJ6KO <<A
href="mailto:kj6ko@innercite.com">kj6ko@innercite.com</A>>
wrote:</DIV><BR class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<DIV
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bgcolor="#ffffff">
<DIV><FONT size=2 face=Arial>I am looking into an RTCM. Does it have
the capability of driving a modulator directly? May have to use it
with an old Palomar controller which is set up for direct modulator input
style TX audio (pre-emphasized)</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>txprelim=yes?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I know it has the ability to de-emphasize the
DISC audio from the Palomar.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thanks..</FONT></DIV><BR><BR>__________
Information from ESET NOD32 Antivirus, version of virus signature database
8738 (20130828)
__________<BR></DIV></BLOCKQUOTE></DIV></DIV></BLOCKQUOTE></DIV><BR></DIV></DIV><BR><BR>__________
Information from ESET NOD32 Antivirus, version of virus signature database
8739 (20130828) __________<BR><BR>The message was checked by ESET NOD32
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