OpenGD77

Roger, I have just tested this. The current firmware is incorrectly responding to a private call to any ID and displaying the 'Accept Call' prompt. It should only be triggered by a private call to its own ID. I looks like there is no filtering to test if the destination ID is the radios ID. What IU4...

I don't think RxOffset or TxOffset would be needed for the OpenGD77. DMR Radios can talk to each other without the need for constant fine tuning. That was something that became necessary as a work-around for problems with the Hotspot hardware which are not present in the GD77. For the same reason MM...

A properly implemented DMR decoder in a custom designed chip as used in the GD77 and other DMR radios is tolerant of quite large frequency errors, indeed this is a requirement to fully comply with the DMR specifications. Hotspots have always been excessively sensitive to fine tuning of the frequency...

At the moment it’s just

‘Auto scan’ becomes ‘Zone Skip’
‘Lone Worker’ becomes ‘All Skip’

Some of the other items (like Scan Lists) are redundant in openGD77 but there is probably no harm in leaving them there for now.

Don’t forget Function + up down = Change Zone.

We are doing many things in a different way to the official CPS. Therefore the functions of some of the codeplug items are different. Scanning is one of those differences. We are using the ‘auto scan’ flag as ‘zone scan skip this channel’ and the ‘lone worker’ flag as ‘all scan skip this channel’. T...

You need to install the MCUXpresso IDE . Downloadable from NXP.com

Scan settings have now changed to options menu. When Roger approves this change there will be three new strings added to all Language files. 'Scan Mode', 'Hold' and 'Pause'. I can see that maintaining these files will be time consuming for a while as we add new functions all the time. Translators wi...

Your comment “(autoscan set for each channel)” might be significant. The auto scan tick box on the CPS has a different function in OpenGD77. It is used as a ‘skip channel’ flag. If this is set then the scan will skip over the channel and not stop. You can check and change the state of the flag by pr...

Roger, Leaving monitor mode active on dual timeslot after transmitting could cause a lot of confusion with people potentially swapping time slots without realising. I would have thought that if you press the PTT the timeslot should be locked and Monitor mode should be reset to single timeslot. Prett...