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<TD bgColor=#00acce style="height: 19px" class="auto-style1">&nbsp;<span class="auto-style2">&nbsp;&nbsp; 
<a href="mailto:g1jwg@radiohistory.uk" style="color:#000000;"> g1jwg@radiohistory.uk</a></span></TD></TR>
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<P align=left>&nbsp;</P></TD>
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<P class="auto-style4">COUGAR RADIO PROGRAMMING</P></TD></TR></TBODY></TABLE>
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<P class="auto-style8">&nbsp;</P>
<P class=auto-style7>The PRM4515L is normally programmed using the PRM4073 
Programmer. However these are rare and not normally available. The Radio uses a 
standard 93C46 EEprom. It should be possible to desolder the EEprom and put a 
socket in so the EEprom can be removed for programming or it can be reprogrammed 
in situ.</P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style9>&nbsp;</P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style10>To this end Jacob PE2CJ has 
been doing some work on reverse engineering the code in the EEprom in the 
PRM4515L radios released on the Dutch surplus market.&nbsp; His Cougar site (in 
Dutch) is here&nbsp;&nbsp; </P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style11>
<a href="http://www.amateurtele.com/index.php?artikel=193">
<span class="auto-style6">http://www.amateurtele.com/index.php?artikel=193</span></a></P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style9>&nbsp;</P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style10>He has also produced an Excel 
spreadsheet for working out the code</P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style10>
<a href="http://www.pmrconversion.info/Cougarnet/amateurtelecom_PRM4515L_frequency_programming_20160831V2.xls">
<span class="auto-style6">
http://www.pmrconversion.info/Cougarnet/amateurtelecom_PRM4515L_frequency_programming_20160831V2.xls</span></a></P>
<P style="MARGIN: 0cm 0cm 10pt" class=MsoNormal>&nbsp;</P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style10>Another Dutch Ham Dave PA5DOF 
has been succesful in programming the PRM4515 using an Arduino Nano, the result 
of his efforts can be found here.</P>
<P style="MARGIN: 0cm 0cm 10pt" class=auto-style10>
<a href="http://pa5dof.blogspot.co.uk/2017/01/program-racal-cougar-part-1.html">
<span class="auto-style6">
http://pa5dof.blogspot.co.uk/2017/01/program-racal-cougar-part-1.html</span></a></P>
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<P>&nbsp;<SPAN style="FONT-SIZE: 8pt"><FONT size=2><FONT color=#808080>D. J. MCKAY 
G1JWG 2017</FONT></FONT></SPAN></P></TD></TR></TBODY></TABLE></BODY>