[R-390] R-390 New Project

[DJED1 at aol.com]

"1. The PTO problem was a loose  coupler. I loosened a clamp, fit the ridges 
and
indentations, tightened it  up, and it works. It's 25 khz off but I'll fix 
that
later. You folks pointed  me in the right direction there. Thank you."

That's your  problem-

You must correct the alignment of the PTO and the tuning racks-  That's what 
is killing your sensitivity, especially on the low band.  Check  the alignment 
process in the Y2K manual. Go through the process of setting the  readout to 
7.000+, that is, at the top of the 7 MHz band, and check that the  cams are 
set on the calibration marks.  If that looks OK, then use the  signal generator 
or the calibrator to set a signal on 8.000 MHz, loosen the PTO  coupling at 
the front coupler, and manually tune the PTO until you zero beat the  8 MHz 
signal.  Then retighten the coupler. This should improve your  sensitivity a lot. 
Check that the readout is now within a couple of KHz.   Once you've checked 
out the rest of the radio, you can go through the entire  mechanical and 
electrical alignment to get best sensitivity.
Ed  

<BR><BR><BR>**************************************<BR> AOL now offers free 
email to everyone.  Find out more about what's free from AOL at 
http://www.aol.com.