Search found 225 matches
- Tue Jan 19, 2021 10:13 am
- Forum: General discussions
- Topic: FYI. Battery power saving
- Replies: 18
- Views: 422
Re: FYI. Battery power saving
I think that probably rules out the display as a way of saving power.
- Mon Jan 18, 2021 11:25 am
- Forum: General discussions
- Topic: FYI. Battery power saving
- Replies: 18
- Views: 422
Re: FYI. Battery power saving
Roger,
Don’t forget the display on OpenGD77 is permanently selected with chip select held low all the time. I don’t know if that increases the power consumption but it might. It is pretty easy to modify the code to only set chip select low when sending data to the display.
Colin.
Don’t forget the display on OpenGD77 is permanently selected with chip select held low all the time. I don’t know if that increases the power consumption but it might. It is pretty easy to modify the code to only set chip select low when sending data to the display.
Colin.
- Fri Jan 15, 2021 1:48 pm
- Forum: General discussions
- Topic: DMR Scanning, Private Calls and Talkgroups
- Replies: 4
- Views: 190
Re: DMR Scanning, Private Calls and Talkgroups
Many commercial systems use text messaging and data in addition to voice. If the system is used by multiple companies some of the voice traffic might be encrypted. OpenGD77 only decodes un-encrypted voice calls.
- Fri Jan 08, 2021 7:21 pm
- Forum: General discussions
- Topic: Documentation for the AT1846S
- Replies: 4
- Views: 215
Re: Documentation for the AT1846S
As far as I am aware the only documents we have are in the docs folder on GitHub. As with many of the Chinese chips there is not a lot of detail.
- Mon Jan 04, 2021 11:04 am
- Forum: New members post here first
- Topic: OPEN RD-5R user guide
- Replies: 2
- Views: 125
- Mon Jan 04, 2021 12:14 am
- Forum: General discussions
- Topic: Slight ticking sound
- Replies: 37
- Views: 1115
Re: Slight ticking sound
Roger,
I also have not heard the problem on my radios so it’s difficult to diagnose.
One possible cause could be the screen update. The microphone signal shares the same ribbon cable as the screen and keyboard.
Have you tried a version which doesn’t write to the screen during Tx?
Colin.
I also have not heard the problem on my radios so it’s difficult to diagnose.
One possible cause could be the screen update. The microphone signal shares the same ribbon cable as the screen and keyboard.
Have you tried a version which doesn’t write to the screen during Tx?
Colin.
- Fri Jan 01, 2021 4:26 pm
- Forum: Bug reports
- Topic: Memory channel Scan
- Replies: 7
- Views: 340
Re: Memory channel Scan
Hi Roger,
I may have a fix for this, I will send you and email.
Colin.
I may have a fix for this, I will send you and email.
Colin.
- Fri Jan 01, 2021 12:48 am
- Forum: Bug reports
- Topic: Memory channel Scan
- Replies: 7
- Views: 340
Re: Memory channel Scan
This is probably due to the same bug you previously reported about the audio amp remaining enabled when changing to an unused timeslot.
The scan hold is controlled by the state of the audio amp. If the audio amp remains enabled then the scanning software will see that as an active channel.
The scan hold is controlled by the state of the audio amp. If the audio amp remains enabled then the scanning software will see that as an active channel.
- Thu Dec 31, 2020 6:44 pm
- Forum: General discussions
- Topic: Synchronizing 2 radios to make duplex repeater ?
- Replies: 2
- Views: 140
Re: Synchronizing 2 radios to make duplex repeater ?
Transmitting both timeslots using a GD77 is theoretically possible but it is not as simple as just supplying it with a full frame of data. To implement the hotspot mode Roger has been very clever and is actually taking the encoded data from the host and decoding it back to the source data which is t...
- Wed Dec 30, 2020 11:36 pm
- Forum: General discussions
- Topic: DTMF Contacts
- Replies: 6
- Views: 185
Re: DTMF Contacts
Just a thought.... are we muting the microphone input while generating DTMF Tones?
If not then that might explain why the volume control has an unexpected effect.
If not then that might explain why the volume control has an unexpected effect.