[R-390] [KA9EGW] pto ok now?

ka9egw at britewerkz.com ka9egw at britewerkz.com
Mon Sep 14 19:07:41 EDT 2009


So I zeroed the calibrator, went up 5kc, locked the dial, loosened the
clamp, disengaged the driven bevel gear, rolled the veeder-root to .010,
re-engaged and tightened the bevel gear, unlocked the dial, tuned to .000,
locked the zero adjust, tuned in the calibrator, unlocked the zero adjust.
Just as a sanity check my local 1000kc powerhouse and wwv on 5 and 10 are
right where you'd expect.  So I checked overrun and I have 45 kc overrun on
the low end and 20 kc overrun on the top end.  The pto appears to be
covering the right range with acceptable linearity, but it would seem the
end-stop mechanism is out of sync with everything else.  Is this normal, to
have asymmetrical overrun?  73, Brian KA9EGW



More information about the R-390 mailing list