Programming remote M7300 question

[ElroyJetson]

Oddly this has never come up for me before.

When programming an M7300 with a remote mount head ONLY, is it good practice to program it via the mic connector on the remote head,
or is there a strong recommendation to use the serial port on the back of the radio unit instead?

This hasn't come up for me before because my own remote mount M7300 is a dual control head setup, with the M7300 having its own attached control head
and a second head connected via CAN cable. I've always programmed it via the mic connector on the radio unit.

If there's a higher rate of programming errors with one method than the other, then obviously I want to avoid that method.

 

[BMDaug]

Either SHOULD work just as fine (though as others have noted, there’s no hard fast rule), as should the db9 on the rear of the remote head. Just depends on what’s the most accessible and whether MDT is enabled… The mic should always work regardless of MDT settings. Maybe I’m lucky, but I’ve never encountered a programming error. The only time rpm has needed to attempt a second write after a fail, is when I format the flash disk from the VA menu.

-B

 

[rescue161]

We always use the serial port on the MRU as the mic connector takes forever to update firmware. We just use the serial cable for everything. It is rare that I ever use the mic cable for anything.

 

[rescue161]

We have also noticed a lot of failures when loading a UKEK via the mic cable. Not so with the serial cable.

 

[BMDaug]

We always use the serial port on the MRU as the mic connector takes forever to update firmware. We just use the serial cable for everything. It is rare that I ever use the mic cable for anything.

Ya, I really think of the mic connector as an accommodation for front mount heads where the radio is in a console… it’s never my first choice. MRU 9pin is my go-to as well, even for 100M MRU firmware updates with a CH100… only the head firmware goes USB.

-B

 

[rescue161]

That is true. We only have one CH100 radio and it is just a test radio. We found out that serial doesnt work with the CH100 XG100....LOL. All of our other XG100M and CS7000 are CH721.

 

[wa8pyr]

We always use the serial port on the MRU as the mic connector takes forever to update firmware. We just use the serial cable for everything. It is rare that I ever use the mic cable for anything.

Ditto, the CH721 cable takes forever and 18 days to do anything, let alone firmware updates. I only use it if I’m programming a radio mounted in a vehicle, or indoors such that I can’t get to the serial port on the back of the radio.

When I do an install (which is rare as I’m officially the administrator and not supposed to be doing such things), I put a DB9 serial cable on the back of the radio and leave the other end somewhere inconspicuous so I can get to it easily when I need to.

Beyond that, I’ve never had an issue programming or doing firmware updates with the CH721 cable; it’s just really slow.