OpenGD77

I tried with a repeater that dont wake up with the OpenGD Firmware in DMR mode.


Modify the static const int WAKEUP_RETRY_PERIOD = 500; to more values under and over those value.


The value of 2500 made that the repeater wake up now always as made the original firmware.

The another repeater under test with problems don't wake up with any value, only transmit when the another TS are in TX (sync problem ?)

EA5SW wrote: ↑

Sun May 10, 2020 9:44 pm

I tried with a repeater that dont wake up with the OpenGD Firmware in DMR mode.


Modify the static const int WAKEUP_RETRY_PERIOD = 500; to more values under and over those value.


The value of 2500 made that the repeater wake up now always as made the original firmware.

The another repeater under test with problems don't wake up with any value, only transmit when the another TS are in TX (sync problem ?)

OK.

Perhaps we should make this into an option.

The official version sends every 600mS, so this latest update should be the same.

Another alternative I thought about implementing is to start at 500mS then 250mS to the timeout period while the PTT is held down.
This would slow down the retry, so that if you kept the PTT pressed, the timeout would eventually be long enough so that the repeater woke-up OK.

Another possibility is to perhaps send send the wake-up signal twice next to each other with no gap. But this may cause problems on some repeaters.


But, Its strange that the official firmware manages to trigger the repeater and hear the response when the retry period is now the same as in the OpenGD77

EA5SW wrote: ↑

Sun May 10, 2020 9:44 pm

I tried with a repeater that dont wake up with the OpenGD Firmware in DMR mode.


Modify the static const int WAKEUP_RETRY_PERIOD = 500; to more values under and over those value.


The value of 2500 made that the repeater wake up now always as made the original firmware.

The another repeater under test with problems don't wake up with any value, only transmit when the another TS are in TX (sync problem ?)

Hi

I have not found how to modify "WAKEUP_RETRY_PERIOD" by OpenGD77 CPS.

Thanks

EC7AJT wrote: ↑

Sun May 10, 2020 11:10 pm

EA5SW wrote: ↑

Sun May 10, 2020 9:44 pm

I tried with a repeater that dont wake up with the OpenGD Firmware in DMR mode.


Modify the static const int WAKEUP_RETRY_PERIOD = 500; to more values under and over those value.


The value of 2500 made that the repeater wake up now always as made the original firmware.

The another repeater under test with problems don't wake up with any value, only transmit when the another TS are in TX (sync problem ?)

Hi

I have not found how to modify "WAKEUP_RETRY_PERIOD" by OpenGD77 CPS.

Thanks

No. There is no way to change this at the moment. EW5SW recompiled the firmware.

Hi,
any recent updates on this topic? I have the same problem on recent beta built (Oct 2021). I can activate repeater only when it's currently transmitting. Problem does not occur on stock firmware. Other repeaters on Opengd also works fine.

Can't see wakeup options neither in radio nor in latest CPS. Any chance of incorporating it?

Maybe something can be changed in repeater config?

Thanks for your work,
Paul SQ5FSO

SQ5FSO wrote: ↑

Sun Nov 07, 2021 12:40 am

Hi,
any recent updates on this topic? I have the same problem on recent beta built (Oct 2021). I can activate repeater only when it's currently transmitting. Problem does not occur on stock firmware. Other repeaters on Opengd also works fine.

Can't see wakeup options neither in radio nor in latest CPS. Any chance of incorporating it?

Maybe something can be changed in repeater config?

Thanks for your work,
Paul SQ5FSO

We use the same retry delay (600ms) as the official firmware.

What radio type are you using ?

Hi,
thanks for your reply. I use 1801, latest beta build. The problematic one is MMDVM repeater ~2km from my QTH.

Situation exact like EA7AJT

EC7AJT wrote: ↑

Thu May 07, 2020 8:40 pm

Hi
I have this problem too.

I can't connect with this dmr repeaters, ED7ZAL (UHF, Hardware MMDVM (Repeater). Firmware 20170501)
With the oficial firmware, fine.

I commented my case in: 7 and 8 page
http://www.opengd77.com/viewtopic.php?f ... 3af9393849


Roger said:

VK3KYY wrote: ↑

Mon Feb 03, 2020 9:51 am

OK.

So the repeater is hearing your signal.

What it sounds like is that the repeater does not wake up when you transmit.

Paul SQ5FSO

So either the repeater is not waking up or the OpenGD77 does not hear the response from the repeater and then go into full Tx mode.

And

VK3KYY wrote: ↑

Mon Feb 03, 2020 8:10 pm

The repeater is not waking up.

...

Paul SQ5FSO

SQ5FSO wrote: ↑

Sun Nov 07, 2021 10:17 pm

Hi,
thanks for your reply. I use 1801, latest beta build. The problematic one is MMDVM repeater ~2km from my QTH.

Situation exact like EA7AJT


Paul SQ5FSO

OK.

The problem is not the retry time, its the initial modulation.

The modulation when the Tx is initially turned on, is not as clean on the opengd77 firmware as the official firmware.
I think the problem worse on the BM1801 than the GD77, and even worse on the RD5R

I think Colin G4EML did some work to attempt to slightly improve the initial modulation envelope, but it never got included into the firmware because of insufficient time.

The real problem is the MMDVM repeater, becuase its modulation tollerance is probably too tight. MMDVM repeaters are very hard to calibrate, and I the repeater in question probably needs its Rx re-calibrated.

Hi,

just confirm that for my GD-77 this problem remains with this repeater (UHF, Hardware MMDVM Repeater. Firmware 20170501) also with the current versions.

Thank you for your work on this project.

73 Juan

SQ5FSO wrote: ↑

Sun Nov 07, 2021 10:17 pm

Hi,
thanks for your reply. I use 1801, latest beta build. The problematic one is MMDVM repeater ~2km from my QTH.

Situation exact like EA7AJT

EC7AJT wrote: ↑

Thu May 07, 2020 8:40 pm

Hi
I have this problem too.

I can't connect with this dmr repeaters, ED7ZAL (UHF, Hardware MMDVM (Repeater). Firmware 20170501)
With the oficial firmware, fine.

I commented my case in: 7 and 8 page
http://www.opengd77.com/viewtopic.php?f ... 3af9393849


Roger said:

VK3KYY wrote: ↑

Mon Feb 03, 2020 9:51 am

OK.

So the repeater is hearing your signal.

What it sounds like is that the repeater does not wake up when you transmit.

Paul SQ5FSO

So either the repeater is not waking up or the OpenGD77 does not hear the response from the repeater and then go into full Tx mode.

And

VK3KYY wrote: ↑

Mon Feb 03, 2020 8:10 pm

The repeater is not waking up.

...

Paul SQ5FSO