Maybe this notes in the K60XV errata apply to this issue: 2. Using TUNE mode with the K60XV and KAT2 installed: If the KAT2 is in either of its autotune modes (A U T O or A LT ), and you’re on a transverter band configured for LP mode (Low Power, 0 dBm), holding TUNE drops power to 0.2 milliwatts maximum. You can override this behavior by holding D I S P L A Y along with TUNE, or by selecting any KAT2 mode other than A U T O or A LT in the menu.
3. KAT2 modification for use with K60XV LP mode: In some cases the LM358 op-amp on the KAT2 can load down the K60XV's low-power RF detector (at the emitter of Q2), preventing the K60XV from developing a full 0 dBm (1 milliwatt) signal at the transverter OUT jack. To correct this, change R6 on the KAT2 from 47 ohms to 470 ohms. This resistor is supplied with the K60XV kit. R6 is on the bottom of the KAT2 control board, and can be changed without removing the KAT2 module. Maybe Item #3 is the answer. Thoughts? I might try this after dinner. 73 -- John Hoaglun NG0R - EN25 http://www.hoaglun.com On Sat, 2010-08-21 at 19:30 -0500, John Hoaglun wrote: > Another follow-up note/question on the transverter topic.... > > On the K2+K60XV when I set the radio (tran1, tran2, tran3) each to > LP1.00 would expect that I should see a maximum of 1mW of power > available. > > When I actually measure that IF line I am only seeing about .50mW and > the radio is typically showing something like "P .42 LP". > > Q: Should approx 1mW really be available? > Q: If so, shouldn't the radio show something like "P 1.00 LP" or > "P .95 LP" ? > > I realize that I am likely battling several issues on my setup. But I > am feeling like my LP is only running about 1/2 the drive into the > transverter than I am expecting. Starting out with the drive level > that you expect seems like an important step. :-) I have an empty > house this weekend so I was hoping to get the transverters up and > running. > > > Please CC me direct as I am a digest user. > > 73 > -- > John Hoaglun > NG0R - EN25 > http://www.hoaglun.com > > > > > ______________________________________________________________ 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
