Martin ,for the bad results of K2+Transverter probably both of them contributed. My first try with transverter+K2 was in Marconi CW contest (November 2004).Before that i used FT1KMP and Javornik transverter. Other stations told me, that i was very noisy over a whole 2m band while on TX. At that time i was using for TX IF input ,output from TX of 10W K2 reduced with power button and adequate attenuator to bring it down to 1mW needed for transverter input.It was a horrible choice i realised..... Now i am using the 1mW signal directly after first bufer (like XV144 does) and still got to test the noise with carrier on and with unmodulated signal......hope it will be ok... Maybe for someone is strange that a bit of noise is heard, but in S5 and generaly in central Europe the density of crowded band is unbelivable (several Kw stations on hilltops almost "touching" ich other with antennas HI HI) so the clear TX and bullet-proof RX is extremly important for contesting. All ideas and tips and tricks are wellcome :)
s55m-Adi ----- Original Message ----- From: "Martin Kratoska" <[EMAIL PROTECTED]> To: "Fraser Robertson" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]>; <elecraft@mailman.qth.net> Sent: Friday, March 11, 2005 1:55 AM Subject: Re: [Elecraft] K2 with 144Mhz transverter - phase noise > it would be quite interesting to know where is the culprit - if K2 or > the transverter > > 73 Martin OK1RR > > Fraser Robertson napsal(a): > > Adi, I've compared two latest spec. K2/100's with a FT1KMP, TS870, and a > > home brew VFO/Xtal mixer rig, and the close in TX phase noise (unkeyed > > carrier) of the K2's is worse than the other rigs. I think the figure > > you quote is probably typical. If there is a way to improve on this I'd > > love to know as in many respects the K2 is a great rig and I'd like to > > use it for QRO contesting. (I have not used a transverter). > > > > 73 Fraser G4BJM > > > >> > >> NF 6dB, IP3 -26 dBm and TX noise at least 10dB greater than FT1KMP. > >> > >> For those who r not familiar with this data I can only say that are > >> bad....but how??? > >> I suppose the transverter was always the same. > >> > >> Why? How? > >> > >> TNX for answers... > >> > >> S55M-Adi > > > > > > _________________________________________________________________ > > Express yourself instantly with MSN Messenger! Download today - it's > > FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ > > > > _______________________________________________ > > Elecraft mailing list > > Post to: Elecraft@mailman.qth.net > > You must be a subscriber to post to the list. > > Subscriber Info (Addr. Change, sub, unsub etc.): > > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
