David The secret with these RA Mitsubishi modules is getting the heat away, and they're not very efficient at all. The earlier M series were a little better (I notice that's what shows on Elecraft's web site pictures but no doubt they have had to upgrade when stocks ran out).
Looks like the internal transverter runs discrete components ? Can't quite see enough in the pictures to be sure. Regards John G4ZTR -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Pratt Sent: 08 December 2009 11:14 To: Johnny Siu Cc: Elecraft Subject: [Elecraft] K144XV or XV144 transverter? Johnny - The Mitsubishi RA30H1317M module used in the XV144 is supposedly rated at 30W at 135-175MHz. Having said that my XV144 seems to trip out if I run it more than about 5W on FM. 73 David G4DMP [Top posted as recommended, but I don't like it!] In a recent message, Johnny Siu <vr2...@yahoo.com.hk> wrote ... >One more thing, XV144 is supposed to work at 10 watt if under full duty >cycle i.e. FM mode. In fact, when XV144 works under FM mode, it is >extremely hot. -- David G4DMP Leeds, England, UK ------ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __________ Information from ESET NOD32 Antivirus, version of virus signature database 4669 (20091208) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 4669 (20091208) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
