narrowband

Does anyone have a complete list of which radios (both mobiles, handhelds and repeaters) that WILL be capable and will NOT be capable of narrowbandiing? I have heard people make mention of the dates when the radios were made, but what I'm looking for is an actual list of which radios ARE and...

We all know the PSP has by and large migrated to the OpenSky system, with occasional fallback usage on the VHF system. That's no longer in question. However what I find interesting is that the state has very recently modified 75 of the PSP VHF licenses to add 11K0F3E (narrowband) emission...

I have attached a snippet, of the BNSF railroad grant in Northern Illinois. Can anyone tell me what 4K00F1E is? I know that many users are switching to the 11K2F3E for narrowband requirements, and 20K0F3E would be the standard currently. But what is the 4k00F1E? Is this preparation for...

A quick question on the programming software. With narrowband just around the corner, was just wondering if I am correct on this: You have a channel that you talk to your dispatch with on a regular basis and it is set to Wide at this time. You decide to change Wide to Narrow on the programming...