Talkgroups & Private Call Function

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W5DMH
Posts: 4
Joined: Sat Oct 26, 2024 6:33 pm

Talkgroups & Private Call Function

Post by W5DMH » Sun Oct 27, 2024 10:25 am

I am trying to setup my DM-1701 radios to be used on a standalone mixed mode repeater (no BM or other network connection) .
I want to have few talkgroups but also have the ability to have private calls.
The OpenGD77 approach of having talkgroup lists on a single channel works fine for isolating the talk groups (as long as I have the radio DMR filter set to TG) but I cannot seem to get a private call to work when the DMR filter is set to TG?

Is there a way to allow private calls to interrupt the current talkgroup while the DMR-Filter is set to TG ?

VK3KYY
Posts: 8195
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Talkgroups & Private Call Function

Post by VK3KYY » Sun Oct 27, 2024 10:57 am

W5DMH wrote:
Sun Oct 27, 2024 10:25 am
I am trying to setup my DM-1701 radios to be used on a standalone mixed mode repeater (no BM or other network connection) .
I want to have few talkgroups but also have the ability to have private calls.
The OpenGD77 approach of having talkgroup lists on a single channel works fine for isolating the talk groups (as long as I have the radio DMR filter set to TG) but I cannot seem to get a private call to work when the DMR filter is set to TG?

Is there a way to allow private calls to interrupt the current talkgroup while the DMR-Filter is set to TG ?
Private calls Rx is turned On by default, but you can disable receiving Private calls.

However....

What you seem to be complaining about is a network problem, where the network continues to send your hotspot the TG traffic rather than the PC traffic.


Try posting to a Brandmeister forum, to see if there is any way to configure this...
However I've not noticed anything in the BM Self-care portal related to this

W5DMH
Posts: 4
Joined: Sat Oct 26, 2024 6:33 pm

Re: Talkgroups & Private Call Function

Post by W5DMH » Sun Oct 27, 2024 11:42 am

No it is not a network issue as I am not connected to any networks .
I WANT to receive private calls as a priority when in a talkgroup...

VK3KYY wrote:
Sun Oct 27, 2024 10:57 am
W5DMH wrote:
Sun Oct 27, 2024 10:25 am
I am trying to setup my DM-1701 radios to be used on a standalone mixed mode repeater (no BM or other network connection) .
I want to have few talkgroups but also have the ability to have private calls.
The OpenGD77 approach of having talkgroup lists on a single channel works fine for isolating the talk groups (as long as I have the radio DMR filter set to TG) but I cannot seem to get a private call to work when the DMR filter is set to TG?

Is there a way to allow private calls to interrupt the current talkgroup while the DMR-Filter is set to TG ?
Private calls Rx is turned On by default, but you can disable receiving Private calls.

However....

What you seem to be complaining about is a network problem, where the network continues to send your hotspot the TG traffic rather than the PC traffic.


Try posting to a Brandmeister forum, to see if there is any way to configure this...
However I've not noticed anything in the BM Self-care portal related to this

User avatar
F1RMB
Posts: 2878
Joined: Sat Nov 16, 2019 5:42 am
Location: Grenoble, France

Re: Talkgroups & Private Call Function

Post by F1RMB » Sun Oct 27, 2024 12:17 pm

W5DMH wrote:
Sun Oct 27, 2024 11:42 am
No it is not a network issue as I am not connected to any networks .
I WANT to receive private calls as a priority when in a talkgroup...

VK3KYY wrote:
Sun Oct 27, 2024 10:57 am
W5DMH wrote:
Sun Oct 27, 2024 10:25 am
I am trying to setup my DM-1701 radios to be used on a standalone mixed mode repeater (no BM or other network connection) .
I want to have few talkgroups but also have the ability to have private calls.
The OpenGD77 approach of having talkgroup lists on a single channel works fine for isolating the talk groups (as long as I have the radio DMR filter set to TG) but I cannot seem to get a private call to work when the DMR filter is set to TG?

Is there a way to allow private calls to interrupt the current talkgroup while the DMR-Filter is set to TG ?
Private calls Rx is turned On by default, but you can disable receiving Private calls.

However....

What you seem to be complaining about is a network problem, where the network continues to send your hotspot the TG traffic rather than the PC traffic.


Try posting to a Brandmeister forum, to see if there is any way to configure this...
However I've not noticed anything in the BM Self-care portal related to this
I think you don't know how it works.
The firmware has no impact on this. DMR in duplex mode can only handle two transmission at the same time (TS1 and TS2).
e.g If you currently receiving a TG on TS2, and someone tries to call you in PC on the same timeslot, you're doomed, you CAN'T receive it. Period.

W5DMH
Posts: 4
Joined: Sat Oct 26, 2024 6:33 pm

Re: Talkgroups & Private Call Function

Post by W5DMH » Sun Oct 27, 2024 3:12 pm

Clearly I am not explaining myself correctly, however I did revert back to the original firmware and it allows private call interrupting the current talkgroup and solves the issue.

VK3KYY
Posts: 8195
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Talkgroups & Private Call Function

Post by VK3KYY » Sun Oct 27, 2024 7:44 pm

You don't say whether you are like listening to a repeater or to a simple frequency

If it's a simplex frequency what you may be describing is a Dual Channel Direct transmission.
We don't / can't support DCDM because there is no documentation for the DMR DSP about how to configure it into this mode

If you are receiving from a duplex repeater, then you are describing a feature we didn't know existed in the official firmware, hence we didn't implement that functionality

G4EML
Posts: 997
Joined: Sat Nov 16, 2019 10:01 am

Re: Talkgroups & Private Call Function

Post by G4EML » Sun Oct 27, 2024 9:26 pm

I don't think it is anything to do with DCDM.

The OP said he was trying to use a stand alone repeater. That would be capable of repeating talk groups or private calls between local users.

It is not clear to me exactly what the OP means by private calls interrupting a talkgroup. I think there is some terminology confusion going on here.

Private calls are generally frowned upon anyway on most amateur repeaters. People with conventional DMR radios will just find the repeater is busy without hearing any activity and this can cause confusion.

Colin G4EML.

VK3KYY
Posts: 8195
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Talkgroups & Private Call Function

Post by VK3KYY » Sun Oct 27, 2024 10:50 pm

I just re-read the first post, he says he is using a "standalone mixed mode repeater", with no network connection

This is quite ambiguous, but the minimum hardware sounds like it would be a duplex MMDVM_HS hotspot, and probably more likely to be a full digital repeater

In which case the only scenario I can see which matches the description is that TG's are being passed on one TS and the PC is on the other TS.

This doesn't sound at all like Ham radio use of the firmware at all

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