<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Howdy To All,</DIV>
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<DIV>The Adelaide Hills Radio Club did offer some Codan amps for sale at a nominal price to club members a while ago.</DIV>
<DIV>I don't know if any are left but some members are using them with their HPSDR with success.</DIV>
<DIV>They are easy to link up and have band switching and other necessary stuff like PTT easily adapted.</DIV>
<DIV>Re the Codan specs please refer to the TSM for the 8528/9360 models which are typical of the Codan range.</DIV>
<DIV>You should find the information required in the PA section</DIV>
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<DIV><A href="http://codanukltd.co.uk/Service_Support_CD/data/tsm/8525-8528/%2815-02036%29%208525B-8528%20TSM.pdf">http://codanukltd.co.uk/Service_Support_CD/data/tsm/8525-8528/%2815-02036%29%208525B-8528%20TSM.pdf</A></DIV>
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<DIV><A href="http://codanukltd.co.uk/Service_Support_CD/data/tsm/9323-9360-9390-9780/%2815-02051%29%20TSM.pdf">http://codanukltd.co.uk/Service_Support_CD/data/tsm/9323-9360-9390-9780/%2815-02051%29%20TSM.pdf</A></DIV>
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<DIV>I tried a few methods of power reduction from Penelope to my amplifier.</DIV>
<DIV>My final solution was to use a 15db pad (at the output socket of Penelope) which gives good results.</DIV>
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<DIV>Cheers to all</DIV>
<DIV>Dean VK5LB.<BR></DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Phil Harman <phil@pharman.org><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Tom Cathey <k1jj@comcast.net><BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> hpsdr@lists.openhpsdr.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Fri, 4 February, 2011 6:34:45 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [hpsdr] Penny PTT unkeying spike - T/R sequencing?<BR></FONT><BR>***** High Performance Software Defined Radio Discussion List *****<BR><BR>Hi Tom,<BR><BR>Looks like you are making good progress.<BR><BR>Can you please confirm that the spike,<BR><BR>1. Only appears when using AM or FM<BR>2. Appears at the output of Penelope and not just on the bandscope screen.<BR><BR>Re the "Codan Flying Doctor Radio?". I gave an HPSDR presentation last<BR>year to the Adelaide Hills Amateur Radio Society. A number of their<BR>members were using this PA. I suggest you
contact them via their web page<BR><BR><A href="http://www.ahars.com.au/" target=_blank>http://www.ahars.com.au/</A><BR><BR>73 Phil..VK6APH<BR><BR>> ***** High Performance Software Defined Radio Discussion List *****<BR>><BR>> Just to keep the thread updated and everyone informed, Gerd sent me a<BR>> screen<BR>> shot showing a Penny with the same spike that I am experiencing. He said<BR>> he<BR>> will look into it. Good luck with that, Gerd!<BR>><BR>> I find that with the PA db gain set above 38DB there is NO Penny lockup<BR>> and<BR>> no spurious images after key up. I set mine to 43db now as suggested by<BR>> Phil. This is a good thing and leaves only the spike issue left to solve.<BR>><BR>> I am adding a small SS linear amplifier now.<BR>><BR>><BR>> BTW, does anyone know where to find the IMD specs for the Codan linear<BR>> amplifier from a "Codan Flying Doctor
Radio?" It is 0.5 watt in for 100<BR>> watts out module and is an Australian make.<BR>><BR>> Thanks.<BR>><BR>> Tom, K1JJ<BR>><BR>><BR>><BR>> _______________________________________________<BR>> HPSDR Discussion List<BR>> To post msg: <A href="mailto:hpsdr@openhpsdr.org" ymailto="mailto:hpsdr@openhpsdr.org">hpsdr@openhpsdr.org</A><BR>> Subscription help:<BR>> <A href="http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org" target=_blank>http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org</A><BR>> HPSDR web page: <A href="http://openhpsdr.org/" target=_blank>http://openhpsdr.org</A><BR>> Archives: <A href="http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/" target=_blank>http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/</A><BR>><BR>><BR><BR><BR>_______________________________________________<BR>HPSDR Discussion List<BR>To post msg: <A href="mailto:hpsdr@openhpsdr.org"
ymailto="mailto:hpsdr@openhpsdr.org">hpsdr@openhpsdr.org</A><BR>Subscription help: <A href="http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org" target=_blank>http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org</A><BR>HPSDR web page: <A href="http://openhpsdr.org/" target=_blank>http://openhpsdr.org</A><BR>Archives: <A href="http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/" target=_blank>http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/</A><BR></DIV></DIV></div><br>
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