DMR on Itinerant Frequencies?

[mmckenna]

I'm wondering if there are any radios out there that auto ID in morse every 15 after a tx until no tx ...thought I read somewhere that if you use auto with morse it is supposed to be at 40% of the tx power ?

Kenwood LMR radios will do CW ID, even if running in digital mode.

 

[mmckenna]

1) Itinerant usage implies that the station will be located at varied locations and varied times. 2) There are no part 90 certified hot spots. The closest thing might be the Hytera portable repeater. 3) Using FCC certified equipment should solve the station ID issue.

Yeah, I agree. Instead of using amateur radio/part 97 hotspots, it's fairly easy to do an IP connection between two radios running simplex. Plus, it'll give a lot more range.

 

[W5DMH]

I want to hear more about this? How do you make an IP connection from a radio ? (pardon me, just entering DMR)

Yeah, I agree. Instead of using amateur radio/part 97 hotspots, it's fairly easy to do an IP connection between two radios running simplex. Plus, it'll give a lot more range.

 

[mmckenna]

I want to hear more about this? How do you make an IP connection from a radio ? (pardon me, just entering DMR)

Radio over IP, RoIP. It's been used in the LMR industry for the last 15 years or so. Essentially you need a gateway that handles the transition between IP and the audio/PTT to the radio.

JPS makes some high end stuff. There's a lot of other products from other manufacturers.
Kenwood has the KTI line of product that will interface with repeaters/base radios. Some of the newer repeaters have built in Ethernet ports.

 

[W5DMH]

Ahh, I thought you were talking about a method of build it yourself Radio to IP interface, not commercial RoIP solutions.

Radio over IP, RoIP. It's been used in the LMR industry for the last 15 years or so. Essentially you need a gateway that handles the transition between IP and the audio/PTT to the radio.

JPS makes some high end stuff. There's a lot of other products from other manufacturers.
Kenwood has the KTI line of product that will interface with repeaters/base radios. Some of the newer repeaters have built in Ethernet ports.

 

[mmckenna]

Ahh, I thought you were talking about a method of build it yourself Radio to IP interface, not commercial RoIP solutions.

There are small/inexpensive modules you can buy that will work. Doesn't need to be high end stuff. I'm sure someone with the skills to write software for something like a Raspberry PI could develop their own.
There are some ham radio oriented interface boxes designed for linking repeater systems over IP networks.

Benefit to these over the hotspots is that you can run more power and cover a larger area, even with a simplex setup on an itinerant channel.

 

[CanesFan95]

Please don't do DMR on itinerants. It screws up my scanner.

 

[RTmed519]

Please don't do DMR on itinerants. It screws up my scanner.

I have DMR and Analog on our itinerant frequencies. 3 DMR (1 clear, 2 ENC), and 1 Analog. When we went for a license, the reason we didn't go with Simplex is because it wouldn't always be within that 49 mile range (or whatever it is), we use these frequencies while traveling. Most of the time we can get away with Analog or clear DMR, but in some rare cases we have to use our Encrypted DMR frequencies/TG's.

 

[KG7PBS]

I have DMR and Analog on our itinerant frequencies. 3 DMR (1 clear, 2 ENC), and 1 Analog. When we went for a license, the reason we didn't go with Simplex is because it wouldn't always be within that 49 mile range (or whatever it is), we use these frequencies while traveling. Most of the time we can get away with Analog or clear DMR, but in some rare cases we have to use our Encrypted DMR frequencies/TG's.

Question what you guys talk about in Encrypted mode? Just curious to other people and organizations or departments using encryption for.

For me I do Security for a marijuana dispensary. So we are using P25 AES on UHF.

 

[RTmed519]

Question what you guys talk about in Encrypted mode? Just curious to other people and organizations or departments using encryption for.

For me I do Security for a marijuana dispensary. So we are using P25 AES on UHF.

I'd love to discuss more over direct message to keep this thread clear, but I'll give a brief summary here.

A lot of it is the same reason Law Enforcement and Security uses Encryption. When covering events, or traveling, while it's highly unlikely people are listening compared to LE's, there are some things we'd just prefer to keep "off the air". Names, phone numbers, specific addresses of where we'll be, etc. Sometimes the radios are used for normal conversations that you'd have on the phone.

While it's not a huge deal, because 99% of the Scanner/Ham community are great people, it's mainly to keep identities and locations private. We're also talking about conventional channels, so the only ones that will hear anything are probably within a mile or two in the city, unless they have a very high antenna dedicated to scanning. The systems we use for countywide or statewide communications we pay for 2 TalkGroups on each system, one Encrypted and one not. Both for the same purpose as conventional.

Having listened to non-encrypted stuff for so long and appreciating the agencies that choose not to encrypt, we try to use our non-encrypted as much as possible for the off-chance that someone might want to listen, as un-interesting as we may be.

 

[PrivatelyJeff]

I'd love to discuss more over direct message to keep this thread clear, but I'll give a brief summary here.

A lot of it is the same reason Law Enforcement and Security uses Encryption. When covering events, or traveling, while it's highly unlikely people are listening compared to LE's, there are some things we'd just prefer to keep "off the air". Names, phone numbers, specific addresses of where we'll be, etc. Sometimes the radios are used for normal conversations that you'd have on the phone.

While it's not a huge deal, because 99% of the Scanner/Ham community are great people, it's mainly to keep identities and locations private. We're also talking about conventional channels, so the only ones that will hear anything are probably within a mile or two in the city, unless they have a very high antenna dedicated to scanning. The systems we use for countywide or statewide communications we pay for 2 TalkGroups on each system, one Encrypted and one not. Both for the same purpose as conventional.

Having listened to non-encrypted stuff for so long and appreciating the agencies that choose not to encrypt, we try to use our non-encrypted as much as possible for the off-chance that someone might want to listen, as un-interesting as we may be.

I have similar use case I’m evaluating. Most of our stuff is benign (“slow down!”, “Paul fell off again!”) we will occasionally need to discuss where we’re storing stuff or counting money.

 

[RTmed519]

I have similar use case I’m evaluating. Most of our stuff is benign (“slow down!”, “Paul fell off again!”) we will occasionally need to discuss where we’re storing stuff or counting money.

Exactly, again while it's unlikely someone's listening, it's the peace of mind in knowing nobody can when you absolutely have to use Enc.