Search found 25 matches
- Thu Apr 02, 2020 11:27 am
- Forum: General discussions
- Topic: GD77 transmitted audio has interferences
- Replies: 12
- Views: 6349
Re: GD77 transmitted audio has interferences
Here is one audio sample recorded today, FM mode transmission received with a Kenwood TM-V71E mobile radio and recorded trough the speaker with TASCAM DR-05. Link to the audio clip http://li1426-150.members.linode.com/audio-sample/opengd77_fm_tx.mp3 And here is the same clip with FT-70D and DM380 as...
- Thu Apr 02, 2020 10:49 am
- Forum: General discussions
- Topic: GD77 transmitted audio has interferences
- Replies: 12
- Views: 6349
Re: GD77 transmitted audio has interferences
This is normally caused by using an external mic I have 5 GD-77 radios and none have this problem with the internal mic I know. As I wrote before "I am NOT using external microphone, only the radio it self." My question again. Is there instructions how to build the firmware by myself? I would like ...
- Thu Apr 02, 2020 8:17 am
- Forum: General discussions
- Topic: GD77 transmitted audio has interferences
- Replies: 12
- Views: 6349
GD77 transmitted audio has interferences
Hi, My first brand new Radioddity GD77 arrived last week. I installed OpenGD77 custom firmware in it yesterday. I got audio reports from other DMR users that the signal has pulsed interference. The DMR receive is Ok but the transmitted really has pulsed noise. Also the audio in FM mode has interfere...
- Sat Mar 07, 2020 8:56 am
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: Update 6th March Version 2
- Replies: 55
- Views: 28402
Re: Update 6th March Version 2
No need to post this. Anyway, here is the recorded and cropped & normalized sound clip, http://139.162.159.150/audio-sample/gd77_interference.mp3 A short clip is twice on this audio file. The interference is that pulsed sound which is as louder as brighter the backlight is set. Edit: The original r...
- Sat Mar 07, 2020 7:29 am
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: Update 6th March Version 2
- Replies: 55
- Views: 28402
Re: Update 6th March Version 2
Hi All, As a new member on this forum I confirm the background interference in the transmitted voice of Ari's OH7FES DMR transmissions. The frequency of the pulse interference is about the same as in the DMR modulation (abt. 17 Hz). Is it possible to insert a recorded sample on this forum or should ...