Programming a DMR radio help (Hytera PD785)

[Spider255]

Hi.

I am trying to program a DMR radio which is a Hytera PD785.

I have most things figured out but I'm struggling on how to make sure I am going to be hearing traffic on the right talk group for example I'm transmitting on TG91 but I'm not hearing traffic from that talk group instead it just listens to the whatever I have in the scan list so any talk group comes out on receive and not the talk group I am speaking on?

I've been through the code plug over and over again but I can't figure out what I am doing wrong, I've been watching lots of YouTube videos but I can not find out how to set the talk group up for receive in the programmed channel.

 

[kayn1n32008]

Are you using the correct time slot for that talkgroup?

 

[Spider255]

Are you using the correct time slot for that talkgroup?

I wasn't sure on what time slot to choose so I set up two zones with 16 channels in each zone, zone 1 for time slot 1 and zone 2 for time slot 2. The radio also has an option for pseudo trunking if that helps anything.

 

[Spider255]

I've been trying to setup some PD785 DMR radios for 6 years. I can't get them programmed properly. Analog side of it is easy but the DMR side is very complicated and confusing. I can create scan lists, set up TX DMR contacts but I can't find a way to receive the right talk group for the channel as I'm not seeing any options in the CPS to add a talk group to receive other than selecting a talk group from scanlist. I can transmit but I wont receive anything on that talk group I've programmed.

Example channel will be set to TG91 TX fine, but no receive on that talkgroup or random traffic comes through on that channel from another talkgroup. I can not get the help I need I've been trying for many years and I'm burnt out with them now.

The only way forward I can see is finding a ready made code plug for the Hytera PD785. It doesn't matter what area its for, I can modify repeater frequency.for my area as long as its a UK codeplug.

Thanks.

 

[KD8DVR]

That radio may require you set up the talkgroup you want to receive into a receive group.

 

[K6GBW]

Usually the repeater owner will list talk groups on either slot 1 or 2. As a generl rule, distant talk groups, such as for world wide or national end up on slot 1 and more local or regional talk groups end up on slot 2. You can put both slot 1 and 2 talk groups in the same zone. I'm not familiar with that particular radio, but some radios have a group recieve setting, so check and see if that is set to something like ALL. If it is then shut that off so that it only opens receive on the talk group you are listening to.

 

[hill]

Also not all talkgroups are carried on every repeater. You need to see which talkgroups are on your local repeater. It should also list the time slots for each talkgroup.

Our local repeater doesn't carry Talkgroup 91.

 

[kayn1n32008]

I wasn't sure on what time slot to choose so I set up two zones with 16 channels in each zone, zone 1 for time slot 1 and zone 2 for time slot 2. The radio also has an option for pseudo trunking if that helps anything.

Check the repeaters dashboard, it should tell you what's linked on what talkgroup. Pseudo trunking definitely does not apply to what you are trying to do.

With out seeing your codeplug, it's really hard to know what the problem is because there are so many variables when it comes to DMR programming.

 

[Spider255]

Thanks for the help much appreciated. I've been watching YouTube videos over and over and it would appear I am programming the DMR channels correctly so something else is wrong.

The issue will happen on any repeater DMR channel but simplex DMR channels work fine. I only ever receive traffic from a couple of talk groups and not on the right channels. I've created the scan lists for the talk groups I want to receive I've made the zones and many other things the way its been shown in the YouTube videos but the radios just will not work right on the DMR repeater channels zone. I've tried uploading the codeplug but file type isn't supported.

 

[Spider255]

That radio may require you set up the talkgroup you want to receive into a receive group.

It doesn't work I've tried everything. I've followed many many videos and instructions. The Hytera CPS on these is too complex either that or all the Hytera radios are faulty or a different type not designed for ham use. I'm at the end of my tether with these. All other channels are fine its always the DMR repeater channels. Honestly if I can't get a codeplug for them I feel like literally chucking them all in the trash because I've been trying to get these programed for DMR use for so long now.

 

[dickie757]

Check the repeaters dashboard, it should tell you what's linked on what talkgroup

I only ever receive traffic from a couple of talk groups and not on the right channels.

Look at the talkgroup matrix for the repeater. Are you even sure it is hooked up to Brandmeister? It might be a standalone system, like TGIF or PRN. Might not even be part of a network.

Look on BM TG lastheard using the tg that comes over the air, and see if the rf traffic matches the network traffic. Program a channel with that TG and key up. Introduce yourself and find out whats what with that repeater.

 

[Spider255]

Look at the talkgroup matrix for the repeater. Are you even sure it is hooked up to Brandmeister? It might be a standalone system, like TGIF or PRN. Might not even be part of a network.

Look on BM TG lastheard using the tg that comes over the air, and see if the rf traffic matches the network traffic. Program a channel with that TG and key up. Introduce yourself and find out whats what with that repeater.

I listen to the BM Hostline on the internet which my local DMR repeaters also carry most of them from what I know. The talk groups are the common talk groups used where I am. I am UK based so for example TG91 is a common one here which is used for worldwide and then TG 23526 is HubNet then there are a bunch of UK local talk groups. All the talk groups I have I should get.

These PD785's were ex-building site radios and I got 5 of them at a flea market.

 

[alcahuete]

I have an old PD785 on gosh...probably 7.0 firmware or so. Never had any problems programming it or using it on DMR ham. But I haven't used any of the newer CPS at all.

 

[Spider255]

I have an old PD785 on gosh...probably 7.0 firmware or so. Never had any problems programming it or using it on DMR ham. But I haven't used any of the newer CPS at all.

4 of mine have firmware 7.0 and the other is on firmware 8.05 the CPS I use is version 8 and works with all of them.

I think my next step is to find a way to upload my codeplug onto here, I did try but the file type wasn't supported by the forum so I will have to find another site to upload it too then put a link on here to my code plug so somebody could maybe take a look at it to see what I'm doing wrong and if I'm doing something wrong, then I can determine if the issue is my codeplug or radios themselves not being suitable for DMR Ham use.

I have no issues on the analog side.

 

[alcahuete]

Just zip it up or name it .txt or a file type that is accepted. Whomever looks at it can rename it as needed.

 

[Spider255]

Here is my code plug

 

[kayn1n32008]

Here is my code plug

I just tried to open your codeplug with the Hytera CPS I have, and I got 'Model settings does not match' error. I have V7.06.02.008.NA2 CPS.

 

[kayn1n32008]

Here is my code plug

After looking through your codeplug, I think I found the problem. This is making the assumption that all your frequencies are correct, you have the correct TG/TS programmed and you are in portable range of the repeater you are trying to use.

In the codeplug tree on the left side of the CPS window ->Conventional-> Digital Common ->Basic:




Un-Check:
-

Try making those changes and see what happens.

If I'm interpreting the help box for each of those, I don't think the radio is going to transmit with the 'Encryption Board Presence Check Before Tx' checked, and it is not going to decode un-encrypted transmissions with 'Only Rx Encrypted Voice/Data'.

Additionally, myself, I would uncheck the following in addition to the above:

-All Call Encode
-Radio Disable/Enable
-Remote Monitor Decode
-Emergency Remote Monitor Decode
-Radio Check Decode
-Over The Air Decode
-Message Priority Interrupt
-All Call Priority Interrupt


It is doubtful your local area is using any of these features/functions.

 

[Spider255]

After looking through your codeplug, I think I found the problem. This is making the assumption that all your frequencies are correct, you have the correct TG/TS programmed and you are in portable range of the repeater you are trying to use.

In the codeplug tree on the left side of the CPS window ->Conventional-> Digital Common ->Basic:

View attachment 194345


Un-Check:
-View attachment 194347

Try making those changes and see what happens.

If I'm interpreting the help box for each of those, I don't think the radio is going to transmit with the 'Encryption Board Presence Check Before Tx' checked, and it is not going to decode un-encrypted transmissions with 'Only Rx Encrypted Voice/Data'.

Additionally, myself, I would uncheck the following in addition to the above:

-All Call Encode
-Radio Disable/Enable
-Remote Monitor Decode
-Emergency Remote Monitor Decode
-Radio Check Decode
-Over The Air Decode
-Message Priority Interrupt
-All Call Priority Interrupt


It is doubtful your local area is using any of these features/functions.

Thanks for looking at my code plug I really appreciate it. I will try that to see if that gets things working right.

 

[kayn1n32008]

Thanks for looking at my code plug I really appreciate it. I will try that to see if that gets things working right.

I've got a local BM machine, amd I can definitely come on air and chat if you would like.