Hi Ryan,
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If yor TX frequency is off, then the PLL reference frequency needs adjustment.
It is normal, that a frequency error is about three times higher on 70cm than on 2m.
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If you record the original setting, you can just give it a try. If it does not correct the problem, you can revert to the original setting.
A trustworthy frequency counter makes the adjustment easier and more precise.
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It is also possible, that your radio has another problem, not related to the reference oscillator setting.
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73, Chris