Hi Matt, Thanks for your quick response. The function is sometimes effective especially in Tokyo. The current consumption +10mA is not ignorable in outdoor. Thank you again for useful information.
Jun, JI1TLL > From: [email protected] > To: [email protected]; [email protected] > Date: Wed, 15 Aug 2012 08:49:18 -0700 > Subject: RE: [Elecraft] KX3 direct conversion system > > Hi Jun, > > If you haven't tried it, set RX ISO to ON. This enables an isolation > amplifier that keeps the LO greatly attenuated outside the KX3. The amp > draws something like 10 mA, so use it only when you need it. > > 73, > Matt Zilmer, W6NIA > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of ?? ?? > Sent: Wednesday, August 15, 2012 8:03 AM > To: [email protected] > Subject: [Elecraft] KX3 direct conversion system > > > Hi all, > I built KX3 kit (S/N830) up last week after fixing some errors. > As soon as trying some functions, I found it's really a direct conversion > system. A weak leaked signal was observed with another receiver just on the > watching frequency. > In my boyhood, I built Mizuho DC-701 which was a copy model of Heathkit > HW-7. DC-701 also adopted direct conversion system and my local > station could detect my receiving point. The leaked signal from KX3 is > not so strong as that of DC-701 and almost no problem. > Direct conversion with DSP system will be possibly adopted in higher class > transceiver. > DC on 2m is interesting, however, challenging. > So transverter is reasonable solution and I'm expecting the module again. > Many thanks for proposing the innovated equipment. > > The block diagram shows the transmission system is also 'direct conversion'. > The local oscillating frequency seems to be basically equal to the > transmission frequency. > Is it correct? > > Just one more twitting. The optional microphone looks something a > little cheap, because it's same as that of Chinese kit KN7Qa. > > Jun, JI1TLL > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
