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<DIV>Hi Shel,</DIV>
<DIV> </DIV>
<DIV>With a 14bit DAC the best we can expect is a S/N of about 85dB - OK for an
HF Tx but not good enough for a receiver LO I suggest.</DIV>
<DIV> </DIV>
<DIV>73's Phil...VK6APH </DIV>
<DIV> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=ct1izu@sapo.pt href="mailto:ct1izu@sapo.pt">ct1izu</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=hpsdr@openhpsdr.org
href="mailto:hpsdr@openhpsdr.org">hpsdr@openhpsdr.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, September 06, 2010 8:45
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [hpsdr] New HPSDR card for
VHF/UHF ?</DIV>
<DIV><BR></DIV>***** High Performance Software Defined Radio Discussion List
*****<BR><BR>
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<DIV>Looks like things have moved along a bit. The latest Kuhne 2mtr
transverters use a high-level triple-balanced GaAs-FET ring mixer
with an IP3 of >35 dBm.</DIV>
<DIV>I cant find any links to gas fet rings, anybody any suggestions???</DIV>
<DIV> </DIV>
<DIV>Of course all this assumes that the tx 14bit DAC is clean enough
for the LO ???</DIV>
<DIV> </DIV>
<DIV>Shel CT1IZU</DIV>
<DIV> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=w4yn@earthlink.net href="mailto:w4yn@earthlink.net">Tim
O'Rourke</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=ct1izu@sapo.pt
href="mailto:ct1izu@sapo.pt">ct1izu</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, September 06, 2010 12:55
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [hpsdr] New HPSDR card for
VHF/UHF ?</DIV>
<DIV><BR></DIV>I use the Kuhne xverters as they are robust and I assume
being from Germany they can handle the EU contests.
<DIV>Only down side is that they are pricey.</DIV>
<DIV>Tim W4YN<BR></DIV></BLOCKQUOTE>
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