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<p>I have searched for documentation on the PCGM. can you point me
to the enclosure?<br>
</p>
<br>
<div class="moz-cite-prefix">On 5/11/2017 11:12 PM, Tim Sawyer
wrote:<br>
</div>
<blockquote
cite="mid:CAG3ht9sRFS4Umr_o54vx=WhfT6SX2bKNBA37giE8seHovR-fXw@mail.gmail.com"
type="cite">
<div dir="ltr">The one it comes with.</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, May 8, 2017 at 11:24 PM, Joe
Leikhim <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:rhyolite@leikhim.com" target="_blank">rhyolite@leikhim.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<p>I wonder what kind of enclosure he had it in?<br>
</p>
<br>
<div class="m_362259373774555659moz-cite-prefix">On
5/8/2017 11:10 PM, Tim Sawyer wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">The PCGM were noisy. I know of a case
where a ham using one was shut down by the site owner.
Seems the PCGM was emitting a interfering signal on
high band, around 158 Mhz. </div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, May 8, 2017 at 1:33
PM, Bryan Fields <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:bryan@bryanfields.net"
target="_blank">bryan@bryanfields.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto">
<div>I've been following this with some
interest. One of the fundamental issues with
the PCGM was the master clock going to the
radio was unable to be modulated. This made
low frequency signals (PL) distort, and
digital PL was even worse. </div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature"><br>
</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature">Typically
most radios use two point modulation, with
modulation on the reference oscillator. When
you add an external reference you loose this.</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature"><br>
</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature">Some
base stations are designed to do two point
modulation even on an external clock, the
Quantar for example. This station will even
phase lock it's PL and DPL generation if
provided a 1 PPS in addition to a clock.</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature"><br>
</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature">If
we could inject modulation into the clock
generator simulcast performance would vastly
improve. I'd be interested to see your design
to see if this would be a possibility.</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature"><br>
</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature">Thoughts?</div>
<div
id="m_362259373774555659m_-8108346821654717487AppleMailSignature"><br>
<div style="direction:inherit">--</div>
<div style="direction:inherit">Bryan Fields</div>
<div style="direction:inherit">M: <a
moz-do-not-send="true"
href="tel:%28727%29%20409-1194"
value="+17274091194" target="_blank">+1-727-409-1194</a></div>
</div>
<div><br>
On May 8, 2017, at 14:15, Reid Brandon <<a
moz-do-not-send="true"
href="mailto:rfpowerguy@yahoo.com"
target="_blank">rfpowerguy@yahoo.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<div
style="color:#000;background-color:#fff;font-family:times
new roman,new
york,times,serif;font-size:16px">
<div
id="m_362259373774555659m_-8108346821654717487yui_3_16_0_ym19_1_1494266968989_5136">Hi
Joe,</div>
<div
id="m_362259373774555659m_-8108346821654717487yui_3_16_0_ym19_1_1494266968989_5135">I
got a page with a pic of a man that
rotated around saying DOWNLOAD NOT
FOUND.</div>
<div
id="m_362259373774555659m_-8108346821654717487yui_3_16_0_ym19_1_1494266968989_5184">Try
again!?</div>
<div
id="m_362259373774555659m_-8108346821654717487yui_3_16_0_ym19_1_1494266968989_5186">Tks
Reid<br>
</div>
<div
id="m_362259373774555659m_-8108346821654717487yui_3_16_0_ym19_1_1494266968989_5134"><span></span></div>
<div
class="m_362259373774555659m_-8108346821654717487qtdSeparateBR"><br>
<br>
</div>
<div style="display:block"
class="m_362259373774555659m_-8108346821654717487yahoo_quoted">
<div style="font-family:times new
roman,new
york,times,serif;font-size:16px">
<div
style="font-family:HelveticaNeue,Helvetica
Neue,Helvetica,Arial,Lucida
Grande,sans-serif;font-size:16px"><span>
<div dir="ltr"><font face="Arial"
size="2"> On Sunday, May 7,
2017 12:25 PM, Pierre Martel
<<a moz-do-not-send="true"
href="mailto:petem001@gmail.com" target="_blank">petem001@gmail.com</a>>
wrote:<br>
</font></div>
<br>
<br>
</span>
<div
class="m_362259373774555659m_-8108346821654717487y_msg_container">
<div
id="m_362259373774555659m_-8108346821654717487yiv9395446301">
<div><span>
<div dir="ltr">I am very
interrested in all this
project. My email is VE2PF
@ VE2MRC dot com!
<div><br clear="none">
</div>
<div>what radio did you
used for the project? </div>
<div><br clear="none">
</div>
<div>Thanks for sharing!</div>
<div><br clear="none">
</div>
<div>Pierre</div>
<div>VE2PF</div>
<div><br clear="none">
</div>
</div>
</span>
<div
class="m_362259373774555659m_-8108346821654717487yiv9395446301gmail_extra"><br
clear="none">
<div
class="m_362259373774555659m_-8108346821654717487yiv9395446301yqt9077031820"
id="m_362259373774555659m_-8108346821654717487yiv9395446301yqtfd60759">
<div
class="m_362259373774555659m_-8108346821654717487yiv9395446301gmail_quote"><span>2017-05-07
12:32 GMT-04:00 Kevin
Custer <span
dir="ltr"><<a
moz-do-not-send="true"
rel="nofollow"
shape="rect"
href="mailto:kuggie@kuggie.com"
target="_blank">kuggie@kuggie.com</a>></span>:<br
clear="none">
</span>
<blockquote
class="m_362259373774555659m_-8108346821654717487yiv9395446301gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px
#ccc
solid;padding-left:1ex"><span>Joe,<br
clear="none">
<br clear="none">
Why not consider do
it as an article for
Repeater Builder?<br
clear="none">
<br clear="none">
Thanks,<br
clear="none">
Kevin<span
class="m_362259373774555659m_-8108346821654717487yiv9395446301im
m_-8108346821654717487yiv9395446301HOEnZb"><br clear="none">
<br clear="none">
<br clear="none">
On 5/7/2017 3:13
AM, Joe Moskalski
wrote:<br
clear="none">
</span>
<blockquote
class="m_362259373774555659m_-8108346821654717487yiv9395446301gmail_quote"
style="margin:0 0
0
.8ex;border-left:1px
#ccc
solid;padding-left:1ex">
I wanted to throw
this email out to
the group for all
those who want to
simulcast with the
RTCM. For those
who don't know, in
order to make the
RTCM suitable for
simulcast you must
have a more
accurate 9.6 MHz
clock for the RTCM
in order to ensure
the audio sounds
acceptable in the
overlap areas. I
did this a few
months ago using
9.6 MHz OCXO's.
This worked
reasonably well.
Not as well as I
would have liked
but the system was
very usable, but
of course I wanted
it to be better.
Since the PCGM
(Programmable
Clock Generation
Module) is no
longer available,
I decided to roll
my own as some
say.<br
clear="none">
I created a PLL
circuit that can
accept a 10 MHz, 1
MHz or 100 KHz
reference input
and produce a
phase locked 9.6
MHz out for the
RTCM. I have been
testing this over
the past few days
and it has made an
great improvement
in the audio
quality in the
overlap. The
quality of the
audio in the
overlap areas
sounds very, very
good, it's very
similar to what I
expect to hear in
commercial
simulcast systems.
My circuit is
heavily based off
of an old Motorola
MSF5000 HSO PLL
circuit that I was
able to adapt and
modify to my
needs. There are
other uses for
this circuit that
make it attractive
for simulcasting
but I wont get
into them here. I
am will to share
my schematic and
bill of materials
(digikey) with
anyone. Please
send me an email
and I will be
willing to share
all of my
information on the
project.<br
clear="none">
</blockquote>
<br clear="none">
</span>
<div
class="m_362259373774555659m_-8108346821654717487yiv9395446301HOEnZb">
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-- <br>
<div class="m_362259373774555659gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>--<br>
</div>
<div>Tim</div>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset
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<br>
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<pre class="m_362259373774555659moz-signature" cols="72">--
Joe Leikhim
Leikhim and Associates
Communications Consultants
Oviedo, Florida
<a moz-do-not-send="true" class="m_362259373774555659moz-txt-link-abbreviated" href="mailto:JLeikhim@Leikhim.com" target="_blank">JLeikhim@Leikhim.com</a>
<a moz-do-not-send="true" href="tel:%28407%29%20982-0446" value="+14079820446" target="_blank">407-982-0446</a>
<a moz-do-not-send="true" class="m_362259373774555659moz-txt-link-abbreviated" href="http://WWW.LEIKHIM.COM" target="_blank">WWW.LEIKHIM.COM</a></pre>
</div>
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</div>--
<div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>--
</div><div>Tim</div></div></div></div></div>
</div>
<fieldset class="mimeAttachmentHeader"></fieldset>
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</blockquote>
<pre class="moz-signature" cols="72">--
Joe Leikhim
Leikhim and Associates
Communications Consultants
Oviedo, Florida
<a class="moz-txt-link-abbreviated" href="mailto:JLeikhim@Leikhim.com">JLeikhim@Leikhim.com</a>
407-982-0446
<a class="moz-txt-link-abbreviated" href="http://WWW.LEIKHIM.COM">WWW.LEIKHIM.COM</a></pre></body></html>