With the passage of time the "users" column has become largely irrelevant. For instance, your listing of DRM (DMR?) says amateur radio but actually the users now encompass virtually all types of agencies as well as amateurs. It might make sense to eliminate this column completely.
No. I think you are confusing two different formats DMR is on there already. DMR is Digital Mobile Radio.
DRM is Digital Radio Mondiale. It's an open standard used for broadcasting of digital audio content. It's common on shortwave. DRM is like HD Radio. It's for broadcast use and not intended for voice communications. However, it's being used for digital voice by the ham radio community. Therefore, it is included as a possible voice radio format.
Many new modes added!
I just updated the list. See here:
http://www.depletedcranium.com/digitalvoicemodes.xls
Note: One thing that can be hard with some of the satellite or newer stuff is pinning down exactly what the channel bandwidth is. Many of them use FHSS, so the channels look very large, but really the signal only occupies a tiny part of it at any given time. I just did the best I could with the information I had
A couple things I could really use help with:
- Need more info on military digital voice formats. I really don't have good info on the various US military digital voice formats. I'd like them included even if there is basically ironclad encryption.
- I have no info at all on military satellite voice formats. I know the military transmits digital voice over DoD satellites. Anyone know about this?
- I believe there are some military digital voice formats used by non-US countries in the Western world. There may be some standardization under NATO, but I read that some countries have their own formats.
- I would have to assume that Russia and former USSR nations must have totally different formats from the NATO ones. They probably have their own codecs I have never heard of.
- There is a format (or at least service) known as BETRS (Basic Exchange Telephone Radio Service). It's a wireless fixed telephone service in the US. It's digital wireless local loop. It was first deployed in the 1980's for rural telephone service. I have been able to find no information at all about it. I'm not even sure if it is a single format or multiple formats are used.
- It's debatable whether this would be considered "voice" as a format, but I know some digital wireless microphones operate on various established standards. I could use some help on those
- There are probably some other formats I am missing. I may be missing some that are proprietary but I want to include all the ones I can.
