1750hz tone duration on DM-1701

SA0BUX
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Location: JO99ah, Stockholm, Sweden
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Re: 1750hz tone duration on DM-1701

Post by SA0BUX » Fri Nov 17, 2023 5:24 pm

In Sweden the national organization tried to push for subtone as it's a IARU recommendation but we have still many repeaters that use 1750.

G4EML
Posts: 943
Joined: Sat Nov 16, 2019 10:01 am

Re: 1750hz tone duration on DM-1701

Post by G4EML » Fri Nov 17, 2023 10:27 pm

The UK RSGB has required CTCSS access on all new repeaters for about 20 years now. 1750Hz is still available as a secondary method on some. There may also be a few old ones that are still 1750Hz only but I think they are rare.

Roger/Daniel, I have submitted a PR with a change to use the AT1846S for tone generation.

Colin G4EML

ON3VAN
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Location: Raeren Belgium

Re: 1750hz tone duration on DM-1701

Post by ON3VAN » Mon Nov 20, 2023 8:45 am

Hi Collin,
thank you for submitting a PR. Don't know but does it make sense to switch the DTMF tone generation also to this chipset?
Can you give me a hint where I can see the scheduling of this fix and when it will be available?

Thanks again

73

Jörg

VK3KYY
Posts: 7622
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: 1750hz tone duration on DM-1701

Post by VK3KYY » Mon Nov 20, 2023 8:58 am

ON3VAN wrote:
Mon Nov 20, 2023 8:45 am
Hi Collin,
thank you for submitting a PR. Don't know but does it make sense to switch the DTMF tone generation also to this chipset?
Can you give me a hint where I can see the scheduling of this fix and when it will be available?

Thanks again

73

Jörg
This is already in the new Beta, released today.
See the change list.

ON3VAN
Posts: 6
Joined: Tue Jul 18, 2023 8:37 am
Location: Raeren Belgium

Re: 1750hz tone duration on DM-1701

Post by ON3VAN » Sat Nov 25, 2023 8:17 am

Hi,
I tested the latest version yesterday.
It works like a charm. Opened the repeater right away.
Thank you very much
73
Jörg

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