Radio System A Paper Weight?

[mandlair]

Hi,all some info for guys and girls. http://www.battlecreekenquirer.com/a...WS01/705180320 Mike

[phoneman604]

you would think that the money these towns are spending on this system that it would work,look at kalamazoo they are haveing the same problems,an you also would think that the engineers would find these problems an fix them before fireing up the system an turning it over to the citys

[kasparek]

Battle Creek - Encrypted, Kzoo - Encrypted. See a pattern.....

[Skud]

I listen to Barry County Sheriff and they have almost no trouble except for the MDC's botting them off alot. But not very much going digital. And they are not ENC

[Skud]

Originally Posted by kasparek

Battle Creek - Encrypted, Kzoo - Encrypted. See a pattern.....

All of Kzoo is not Encrypted. I list to Kzoo sheriff alot. Maybe the Encryption is the problem.
Kzoo Pub safty is the one that uses Encryption full time. I can't say anyone else in Kzoo itself that is fully Encrypted.
Would be interesting to see if they took the encryption out if it would make a difference. I bet not tho

[rdale]

Encryption isn't an issue, digital is digital whether there is encryption or not.

What gets me is the comment about digital voice sounding better -- not sure what he uses in place of his ears but they aren't real ;>

[Wyandotte]

Originally Posted by rdale

Encryption isn't an issue, digital is digital whether there is encryption or not.

What gets me is the comment about digital voice sounding better -- not sure what he uses in place of his ears but they aren't real ;>

This may be true to someone that has another Moto radio, I don't know. I know that listening with my Pro96, just about everyone has what I call an "underwater" sound. And they can't sound like that on each other's radios, or they would be wah-wahing like crazy.
I've never listened to an actual Moto digital radio, just my scanner.

[rdale]

No, it's physically impossible to get "better" voice by converting it to digital and back.

I spent plenty of time with a Motorola rig when Lansing was on the system and it never sounded even CLOSE to similar, let alone better.

I've not used ProVoice, but have talked to some that say EDACS digital sounds MUCH better than P25. But still nothing can beat the real thing...

[N_Jay]

Originally Posted by rdale

Encryption isn't an issue, digital is digital whether there is encryption or not.

What gets me is the comment about digital voice sounding better -- not sure what he uses in place of his ears but they aren't real ;>

Guess you have never heard proper radios where there is a weak signal.

P25 definitely sounds better than analog

[rdale]

If the signal is weak, usually the P25 decoding causes a dropout. So while you are correct in that the bits and pieces of voice don't have static in them, you are wrong in saying that P25 is better than analog.

[gg750]

Originally Posted by rdale

If the signal is weak, usually the P25 decoding causes a dropout. So while you are correct in that the bits and pieces of voice don't have static in them, you are wrong in saying that P25 is better than analog.

I think it's wrong of you to say he's wrong for thinking one thing sounds better than another. It's all about one's preference and how one's ears/brain interpret sound waves...everyone is different.

I won't say one sounds better than the other since I don't really care. But I will say that it can often be "clearer" than analog when properly decoded. I've noticed that officers/dispatchers on P25 can often forgo the "Adam Boy Charles" way of spelling out a name since the voice is usually clear enough that ABC works just fine...in most cases. Just my personal opinion...which is probably wrong.

G

[N_Jay]

Originally Posted by rdale

If the signal is weak, usually the P25 decoding causes a dropout. So while you are correct in that the bits and pieces of voice don't have static in them, you are wrong in saying that P25 is better than analog.

In a properly designed system with good equipment, if P25 is "dropping out", then the analog is usually well below usable.

[rdale]

All that is nice in theory. I'm in Michigan and was a listener with a Motorola rig for several years. It is not a factor of a person's ears or listening preference, the MPSCS system, which the article is about, does not contain audio as good as analog.

The Ingham Co UHF trunked system has digital audio that sounds MUCH better than P25.

[fleurycove]

Battle Creek has been using it's OLD ANALOG Station now and then since they have been having this problem. They still use channel #4, (they never stopped using it)
It would of been nice if they just went digital for the city,county & townships and not encrypted. Emmett Township goes by my house 2-4 times a day most every day.

[jparks29]

the thing about A Vs. D is very simple......in Digital , it either works, or it doesn't (no voice, machine gunning,dropped packets)..

With Analog, you have a sliding scale if you will, signal has a direct correlation to audio quality...

Think of it as a cellphone.. your '1 bar' conversation sounds the same as your '5 bar' conversation, it's digital..

NOW, think of the old AMPS phones, or a cordless phone, or even 2m or HF... your S1 conversation sounds NOTHING like your S5 conversation...

The problem IS, in an S1 environment, with digital, you're losing packets, possibly not even recieving enough packets to form the data it needs to convert back to voice...whereas with analog , you may be able to pick out bits/pieces and form a cohesive word structure to understand what's being said...

[GreatLakes]

Much of the Motorola hardware being used on MPSCS is not up-to-date on firmware, or even configured properly.

[gg750]

Originally Posted by rdale

All that is nice in theory. I'm in Michigan and was a listener with a Motorola rig for several years. It is not a factor of a person's ears or listening preference, the MPSCS system, which the article is about, does not contain audio as good as analog.

The Ingham Co UHF trunked system has digital audio that sounds MUCH better than P25.

How are you able to listen to digital TGs in the Ingham EDACS?

[rdale]

Not with a scanner.