Search found 86 matches

by EA5JAQ
Sat Jul 01, 2023 8:39 am
Forum: Developer discussions
Topic: Setting HX8353-E to sleep mode
Replies: 11
Views: 3953

Re: Setting HX8353-E to sleep mode

Thank you so much. Don't worry, I think I can manage with what I have. As you said, Data 1/2 is also used for the voice header and terminator with LC, so it shouldn't be too hard to implement that mode for sending raw data. Then it's just a matter of checking the standard docs so see how location me...
by EA5JAQ
Sat Jun 24, 2023 12:01 pm
Forum: Developer discussions
Topic: Setting HX8353-E to sleep mode
Replies: 11
Views: 3953

Re: Setting HX8353-E to sleep mode

I have some modified code based on an older OpenGD77 source where I am able to receive messages from other radios. It does not send any data. The received data is decoded and send to USB. Sending data is possible but would require some more changes to the DMR code, as most as it is build around voi...
by EA5JAQ
Fri Jun 23, 2023 2:44 pm
Forum: Developer discussions
Topic: Setting HX8353-E to sleep mode
Replies: 11
Views: 3953

Re: Setting HX8353-E to sleep mode

Thank you both. I didn't know that error correction was applied in the codec, I thought that the received buffer was already corrected. I believe the published DMR data mode adds additional error checking Yes, I saw in the DMR standard docs that data frames are 198 bits long, while voice frames are ...
by EA5JAQ
Fri Jun 23, 2023 11:02 am
Forum: Developer discussions
Topic: Setting HX8353-E to sleep mode
Replies: 11
Views: 3953

Re: Setting HX8353-E to sleep mode

You definitely need to measure the current by directly supplying the radio from a PSU, without the battery being connected, otherwise you can't be sure that the current consumption is less. Make sure you do your tests with Eco mode set to 0, so the reduction in current is only being caused by the d...
by EA5JAQ
Sun Jun 18, 2023 9:23 pm
Forum: Developer discussions
Topic: Setting HX8353-E to sleep mode
Replies: 11
Views: 3953

Setting HX8353-E to sleep mode

Hello all, I modified the OpenMDUV380 source code so whenever backlight is turned off, the screen enters the deep stand-by mode (as described in page 100 of the HX8353-E datasheet) , and I'm posting it here in case anyone finds it interesting. I haven't measured (yet) how much current is saved by tu...
by EA5JAQ
Sun Jun 11, 2023 8:34 am
Forum: TYT MD-UV380/390 / UV380/390 Plus 10W / Retevis RT-3S / Baofeng DM-1701 / DM-1701B / Retevis RT-84
Topic: OpenMDUV-NG
Replies: 4
Views: 1717

Re: OpenMDUV-NG

R1CBU wrote:
Thu Jun 08, 2023 10:43 am

youtu.be/ti27f5JVLiw
Looking great! :) :)
by EA5JAQ
Fri May 19, 2023 9:20 am
Forum: TYT MD-UV380/390 / UV380/390 Plus 10W / Retevis RT-3S / Baofeng DM-1701 / DM-1701B / Retevis RT-84
Topic: Unsquelched audio after receiving analog signal
Replies: 3
Views: 736

Unsquelched audio after receiving analog signal

Hi all, I just noticed in my MD-UV390 that after receiving a signal or using monitor mode in an analog chanel, the next beep (for example, when entering a menu, etc) sounds with some unsquelched audio (like a "click" sound). Here's how to replicate the issue: 1. Use monitor mode in an analog channel...
by EA5JAQ
Thu Mar 16, 2023 10:42 am
Forum: TYT MD-UV380/390 / UV380/390 Plus 10W / Retevis RT-3S / Baofeng DM-1701 / DM-1701B / Retevis RT-84
Topic: Initial source code release
Replies: 41
Views: 16738

Re: Initial source code release

Thank you so much! I downloaded everything today and built it and it seems to work fine. I also extracted the codec binary section from an MCU dump in case I need to use the JLink for debugging. I'm currently cleaning the code, removing unused functions, etc. and trying to investigate a couple minor...
by EA5JAQ
Thu Mar 09, 2023 12:23 am
Forum: TYT MD-UV380/390 / UV380/390 Plus 10W / Retevis RT-3S / Baofeng DM-1701 / DM-1701B / Retevis RT-84
Topic: UV380 + DM-1701 Beta 2023 03 08
Replies: 8
Views: 2329

Re: UV380 + DM-1701 Beta 2023 03 08

1. DCDM is unncessary for ham radio, as it is a feature to allow 2 simplex radios on the same frequency on different TimeSlots, with or without a master reference base station for synchronisation. This function is used by commercial operators becuase they pay per channel, and it is cheaper if they ...
by EA5JAQ
Wed Mar 08, 2023 11:50 pm
Forum: TYT MD-UV380/390 / UV380/390 Plus 10W / Retevis RT-3S / Baofeng DM-1701 / DM-1701B / Retevis RT-84
Topic: UV380 + DM-1701 Beta 2023 03 08
Replies: 8
Views: 2329

Re: UV380 + DM-1701 Beta 2023 03 08

VK3KYY wrote:
Wed Mar 08, 2023 10:25 am
supporting the DM-1701 and also processing bug fixes for the DCDM Rx and the DTMF + CTCSS (from Colin) took higher priority
That’s totally understandable.

I didn’t know DCDM was supported. Is it only on Rx? Will it be supported on Tx eventually?