Counter calibration question

[Mark Graalman WB8JKR]

  Let me run this by you guys:

 I recently picked up a new frequency counter (Heath IM-2420)
and I want to calibrate the time base (10 MHz oven oscillator)
anyway, for some reason its VERY difficult to couple enough
signal from the time base to my  SX-110 to beat against WWV at 10 MHz.
I'd really like to beat WWV at 20 MHz for greater accuracy but I can't
hear the 2nd harmonic of the time base, must be a fairly clean
oscillator.

 Anyway, how do you think the calibration would be if I connected the
counter to its own time base? I know that time base inaccuracy would be
additive to the counter, but wouldn't everything be "balanced out" so to
speak if I connected the counter to its own time base and adjusted the
time base for 10.000.000 MHz?

73, Mark  WB8JKR

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