Why isn't Uniden America listening and giving us Tetra?

[GlobalNorth]

I have zero interest in Tetra and I own a SDS100 and a SDS200.

'Mother M' has fought NA adoption of Tetra every step of the way.

 

[KC3ECJ]

Here is Sweden we are closing down the 20 year old nation wide Tetra public service system in favor for a LTE based system. Next year the government are taking on bidders and plan to have a test system built in 2022 with full scale installing starting in 2023.

Tetra are as expensive as P25-II but has superior voice quality with noise reduction (telephone quality) that makes it suitable to airports, railroad, subway and noisy industrial work. It also has advanced security features suitable where a 100% operational level are critical and the control room can be split in two halves and be relocated to different locations where each half can run the whole system independently by itself.

It's an old system now but if only used as a voice system it will still give good performance. Most airports in Europe use Tetra, and plan on using it for many years to come, and also public service (encrypted) in many countries but several are looking at phasing it out for a new system.

/Ubbe

So what's their backup if there's an LTE failure?
Two years ago here in the USA, at least on the East coast, T-Mobile's LTE network crashed in June for the most part of a day.
I set my phone to 2G/3G where T-Mobile's EDGE and UMTS were still working.

 

[Thunderknight]

So what's their backup if there's an LTE failure?
Two years ago here in the USA, at least on the East coast, T-Mobile's LTE network crashed in June for the most part of a day.
I set my phone to 2G/3G where T-Mobile's EDGE and UMTS were still working.

Who says you can't build a government built LTE to public safety standards?
Don't confuse a US commercially built best-effort LTE system with the design/reliability of a purpose built public safety LTE system.

 

[GlobalNorth]

Trade ProVoice for Tetra.

 

[KC3ECJ]

Who says you can't build a government built LTE to public safety standards?
Don't confuse a US commercially built best-effort LTE system with the design/reliability of a purpose built public safety LTE system.

It will be tied into the internet most likely, vulnerable to attack, and doesn't LTE rely on GPS sync?
Another layer of vulnerability.
Fancy things, fancy problems.

 

[Ubbe]

It's probably Motorola that has most of the Tetra systems in Europe and the LTE systems use the same principals of talk groups and control room technology but are using LTE in the RF transportation part to gain higher capacity primary for data. Our government have set aside the 700MHz spectrum for it and have reduced the frequency band for TV and will be a totally separate system to the cellular phone systems.

/Ubbe

 

[mmckenna]

It will be tied into the internet most likely, vulnerable to attack,

"Internet" is a very broad term. If you are referring to consumer internet, no. If you are referring to IP based backhaul, then yes, but so do most modern digital communications systems, like P25 and DMR.

and doesn't LTE rely on GPS sync?

It relies on accurate timing. GPS disciplined clocks are one source, but not the only source.

Another layer of vulnerability.
Fancy things, fancy problems.

Just like Simulcast P25 systems? Multi-site DMR systems? Multi-site NXDN systems?

 

[KC3ECJ]

"Internet" is a very broad term. If you are referring to consumer internet, no. If you are referring to IP based backhaul, then yes, but so do most modern digital communications systems, like P25 and DMR.



It relies on accurate timing. GPS disciplined clocks are one source, but not the only source.



Just like Simulcast P25 systems? Multi-site DMR systems? Multi-site NXDN systems?

So what LTE site can set to function as a repeater on it's own without the aid of fibre or other sites, or any other sort of link if they were to go down?

Maybe Sweden isn't known as well for invasions or natural disasters as other countries, but this is a bad idea.

 

[mmckenna]

So what LTE site can set to function as a repeater on it's own without the aid of fibre or other sites, or any other sort of link if they were to go down?

Same way that:

I set my phone to 2G/3G where T-Mobile's EDGE and UMTS were still working.​

works. It doesn't.

No public safety agency should be relying on a cellular network for their only method of communications. However, local site repeat/fail soft is only good if everyone you need to talk to is on the same site.

 

[SKA999]

Del

 

[SKA999]

Trade ProVoice for Tetra.

This will be the right decision.

 

[werinshades]

147 or 174? What the heck are you talking about?

I posted a few months ago that there were 11 TETRA systems in North America. You participated in that thread, and are rehashing the same argument here. Nothing has changed since the summer, TETRA is extremely niche in this hemisphere. Maybe in a few years if there is more buy-in from public safety Uniden might feel it's worth investing in, but not for 11 measly systems they won't. Sorry.

Help me help you

I understand how to backup... ahh the ole MS-DOS commands :) , but appreciate your reply, may help others. I'm saying is not everyone, well most people I wouldn't be surprised, based on what I see around here, don't update their database, let alone know how. So if something goes wrong, they...

forums.radioreference.com

I found the TETRA reports here: https://www.radioreference.com/apps/db/?rpt=3&sType=12. In another thread I'm looking for, someone posted additional TETRA systems, or maybe I saw a duplicate list, not sure?

The interest is out there since someone started the thread, so I'm not the only one "rehashing". I agree at this time it would be difficult to implement and beta testing would be challenging. We have some here who would probably volunteer for that task. I could probably go back and find the same type of posts on the necessity of MotoTRBO and NXDN capabilities not too long ago which even public safety is using.

If it was offered, I would purchase a TETRA upgrade on my SDS100 since I don't have any systems in my vicinity and don't take my SDS200 out on the road. IF capacity was an issue, I would give up/trade off for features not important to me (Had to correct from my original verbiage of useless since it triggered some here..LOL) that I don't use. This is just my opinion only, but obviously others are interested.

 

[werinshades]

I have zero interest in Tetra and I own a SDS100 and a SDS200.

'Mother M' has fought NA adoption of Tetra every step of the way.

That's why it would be a paid upgrade, much like DMR/NXDN is now.

 

[gary123]

There are more and more TETRA systems showing up. If Uniden can get the licensing arranged we should see TETRA. Im waiting to see if dPMR is offered for the 436/536 line. This will let us all know where Uniden is heading.

 

[KC3ECJ]

There are more and more TETRA systems showing up. If Uniden can get the licensing arranged we should see TETRA. Im waiting to see if dPMR is offered for the 436/536 line. This will let us all know where Uniden is heading.

It seems to be popular with airports.

 

[donc13]

A bunch of Memefeng or similar radios do it.

Easy answer: Then buy one of them.

 

[KevinC]

A bunch of Memefeng or similar radios do it.

Can you supply a link to a Memefang radio? I've never heard of that brand before.

 

[MStep]

Can you supply a link to a Memefang radio? I've never heard of that brand before.

Ditto. If they are along they same lines as the Baofeng, I would not mind having a couple of them to experiment with.

 

[KC3ECJ]

Can you supply a link to a Memefang radio? I've never heard of that brand before.

It's just joking way to refer to Baofengs, Pofungs, and similar radios because of people feeling they're controversial or common characteristics of the radios.

 

[KevinC]

It's just joking way to refer to Baofengs, Pofungs, and similar radios because of people feeling they're controversial or common characteristics of the radios.

Oh, ok.