What is an acceptable voltage range rx to tx?

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I am powering my 6500 with an Astron 70-m using the factory supplied power cable. When monitoring the voltage with K9DUR's SDRMonitor  I see a RX voltage of  12.59 and a TX voltage of 13.45.
Is that spread acceptable?
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Posted 2 years ago

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Tim - W4TME, Customer Experience Manager

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Official Response
The radio needs to have 13.8 VDC at the radio on transmit (under load at full power).  I would expect some IR (voltage) drop due to contact resistance, length of the power cable and if you are using a fuse/distribution block.  You may have to increase the supply output voltage to compensate for the IR drop.

You do not want to exceed 15 VDC st the radio.