I'm sure they also have different RF paths through the cavities... <br>Stating the obvious here, however can have some considerable effects.<br>Comparing 10W to 25W you are only looking at 3-4dB which is negligible when you look at potential losses of cavities etc.<br>
<br>Even if you are using the same power but different radio, different radios can de-calibrate cavities so you aren't comparing apples with apples after all.<br><br>For comparisons, i would suggest using EXACTLY the same for DSTAR/FM. ie, same Ant, Coax, Duplexer, Radio, power, however simply swapping mode from digital to FM.<br>
<br>Perhaps a collaborated effort across 100's of Km and even 'remote controlled' radios on mountain tops etc. A bit over the top just for testing/DXing, but when one want's to play...... :-)<br><br>73's<br>
<br>Heath VK3TWO/VK6TWO<br>WA Repeater Group President<br>WICEN (WA) tech officer<br>WA DSTAR Manager<br><br><div class="gmail_quote">2009/6/21 David Tilson <span dir="ltr"><<a href="mailto:dave@daves-portal.com">dave@daves-portal.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff">
<div><font size="2" color="#0000ff" face="Arial"><span>Yes
Matt, the analogue and D-STAR repeaters share the same antenna system. The
only difference between transmitters is that the analogue FM repeater has a
power output of approx 10W and the D-STAR repeater is approx
25W.</span></font></div>
<div><font size="2" color="#0000ff" face="Arial"><span></span></font> </div>
<div><font size="2" color="#0000ff" face="Arial"><span>Regards,</span></font></div>
<div><font size="2" color="#0000ff" face="Arial"><span></span></font> </div>
<div><font size="2" color="#0000ff" face="Arial"><span>davidt, VK3UR</span></font></div>
<blockquote dir="ltr" style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div></div>
<div dir="ltr" align="left" lang="en-us"><font size="2" face="Tahoma"><div class="im">-----Original Message-----<br><b>From:</b>
<a href="mailto:dstar-bounces@lists.wia.org.au" target="_blank">dstar-bounces@lists.wia.org.au</a> [mailto:<a href="mailto:dstar-bounces@lists.wia.org.au" target="_blank">dstar-bounces@lists.wia.org.au</a>] <b>On
Behalf Of </b>Matt<br><b>Sent:</b> Sunday, 21 June 2009 9:52 PM<br><b>To:</b>
Dstar Digital Radio Mail List<br></div><div class="im"><b>Subject:</b> Re: [Dstar] DSTAR
DX?<br><br></div></font></div><div class="im">
<div><font size="2" face="Arial">The Buninyong D-STAR repeater - was/is it using
the same antenna system as the 70cm repeater on the same site? I am unsure,
but we really should be comparing apples with apples - so to speak - can
anyone shed some light on this?</font></div>
<div><font size="2" face="Arial"></font><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">Matt</font></div>
<div><font size="2" face="Arial">VK8GMT/2</font></div>
<blockquote style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><font color="#0000ff"></font> </div>
</blockquote></div></blockquote></div>
<br>_______________________________________________<br>
Dstar mailing list<br>
<a href="mailto:Dstar@lists.wia.org.au">Dstar@lists.wia.org.au</a><br>
<a href="http://lists.wia.org.au/mailman/listinfo/dstar" target="_blank">http://lists.wia.org.au/mailman/listinfo/dstar</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br>Live life as if there is no tomorrow.<br>Study life as if there is a tomorrow.<br>