dmr radio

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dmr radio

Postby greg » Wed Mar 15, 2017 12:34 pm

hi all

Is there someone on this forum who is looking for a cheap digital radio? if so I would recamend the baofeng dmr 5 radio

look forward to your response

many thanks

greg
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Re: dmr radio

Postby G4RMT » Wed Mar 15, 2017 1:36 pm

That's a bit odd Greg, as it's getting quite a lot of bad press at the moment - so why do you recommend it so highly?
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Re: dmr radio

Postby thelad » Wed Mar 15, 2017 2:52 pm

Coz he has one to sell :laughs: :laughs: :laughs: :laughs:
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Re: dmr radio

Postby greg » Fri Mar 17, 2017 2:22 pm

hi All

I have found two baofeng on the internet this one
https://www.amazon.co.uk/gp/product/B01 ... t1_2p_1_im

and this (one is the one I ordered)

https://www.amazon.co.uk/gp/product/B01 ... UTF8&psc=1

wich one is the right baofeng I should have brought

look forward to your response

many thanks

greg
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Re: dmr radio

Postby Metradio » Fri Mar 17, 2017 2:34 pm

Poor bloke, you do not seem to have a lot of luck.. :sad:

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Raspberry Pi 2 and DV4Mini HotSpot.
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Re: dmr radio

Postby da90 » Sat Mar 18, 2017 10:49 am

@greg Please don't recommend these radios simply because the price.

They are no good for DMR repeaters and most people on here will be wanting to use it that way and they'll end up causing problems on their local repeater.

*off topic*

It wouldn't harm "Baofeng/Pofung what ever they call themselves now" to make a new design. Why are these radios still called baofeng anyway I thought they changed their name a few years ago to pofung?
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Re: dmr radio

Postby iScottybotty » Mon Mar 20, 2017 10:19 am

In fairness to Greg, and I could be wrong, but from what I've read from previous posts is that he has no interest in Transmitting on DMR, he just wants a make-shift scanner capeable of picking up digital signals so to only listen to local security, shopwatch etc.

That said, however, I'm not sure that Greg understands all the parameters that's required to actually listen, TG, Slot, CC etc. I don't believe the DM5R is capeable of automatically finding this information so without, it gets even more complicated.

The bottom line is DMR isn't impossible to listen to, it's just complicated.

The DM5R will not do what you want it to do though Greg.

See the DM5R only has one time slot. Some radios use two. What this means is, for example, and if I'm wrong someone please say because I'm a noob too, that during a transmission received on the DM5R it's likely you'll miss half the conversation because the tramsmitting Radio will be bouncing around on both Slots.

I have come across this myself recently using a MD380. Example:

Freq: 440.000
Colour Code: 5
Talk Group: 99
Slot 1 & 2.

Basically, on the DM5R, if you put the above in, you would only be able to hear any transmission that comes over on Time Slot one. It's likely that after the initial transmission, so, "Delta 3 calling Oscar 1 over", maybe on slot one, then the reply, "Oscar 1 go ahead over", will be on Slot 2 so you'll miss anything that uses both slots.

Best thing to do is wait for the DM5R to be released with BOTH timeslots, which it will be in a few months, or get a DMR capaeable scanner.

One important lesson I've learnt though is that DMR isn't Plug and Play, nor "out of the box", it's a complicated hobby.

I hope the above helps a little with what we mean by timeslots etc. The radio in question could cause havoc if you transmitted on some frequencies, granted, but from what I've read, you only want to listen so your radio won't be programmed with a TX frequency anyway so...

The two slots I understand are for digital trunking systems.
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Re: dmr radio

Postby G4RMT » Mon Mar 20, 2017 11:57 am

In a way - going digital does seem to have the extra benefit of making even unencrypted channels far more difficult for the casual listener.
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Re: dmr radio

Postby ur5by9 » Mon Mar 20, 2017 5:43 pm

That was a good read, the DMR scanners are fairly expensive, Will scanning for the future require such capable equipment?
Thoughts?
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Re: dmr radio

Postby Metradio » Mon Mar 20, 2017 6:43 pm

For a plug and play solution, yes..

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Connect Systems CS750 and CS800, Hytera PD-365, Motorola DP4600.
Raspberry Pi 2 and DV4Mini HotSpot.
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WS1088 / TRX-1 / Whistler Q /UBCD3600XLT.
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