Добро пожаловать, Гость
Логин: Пароль: Запомнить меня
*****PLEASE, CHECK ALL PREVIOUS TOPICS, BEFORE CREATING A NEW ONE! DUPLICATED TOPICS WILL BE DELETED!*****

ТЕМА: Problem of connection on micro MC1 with residual noise in the transmission

Problem of connection on micro MC1 with residual noise in the transmission 05 Янв 2018 09:25 #1

  • efficace
  • efficace аватар
  • Вне сайта
  • Сообщений: 41
  • Спасибо получено: 1
MB1 Prime tout neuf avec 1.2.0RC3
Hello is happy new year !

I wanted to connect my microphone Heil electret on the connection MC1 but I encounter two problem.

1 problem connection
- in the manual the connection of the microphone with the jack MC1 is ( GND /+2v / Mic ).
- On my radio it's not that, I have ( GND / Mic / +2V).

2 Problem Mc1 with residual moise in the transmission
When I switch to transmission without a microphone on MC1 there is a residual noise in the audio of the transmission in all modes.
I do not have this problem with the MC2 connector

Can you help me thank you
MC1.jpg
F4DNK Ingenieur Radar military S/390 IBM
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 05 Янв 2018 10:28 #2

  • g0cgl
  • g0cgl аватар
  • Сейчас на сайте
  • Erik EI4KF / G0CGL
  • Сообщений: 886
  • Спасибо получено: 352
I am not all surprised. MIC gain should be around 10dB and not 50dB
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 05 Янв 2018 10:59 #3

  • efficace
  • efficace аватар
  • Вне сайта
  • Сообщений: 41
  • Спасибо получено: 1
but there is no microphone on Mc1
there is no problem on Mc2

and when I connect the microphone to mc1 we hear in the audio the residual noise


can you do the test? to see if you have the same problem
thank you
Вложения:
F4DNK Ingenieur Radar military S/390 IBM
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 05 Янв 2018 12:23 #4

  • g0cgl
  • g0cgl аватар
  • Сейчас на сайте
  • Erik EI4KF / G0CGL
  • Сообщений: 886
  • Спасибо получено: 352
I can only repeat what I said before. Reduce your MIC gain to 10dB. Do you see the issue then? The answer should be that you do not. Whether there is a microphone attached or not is irrelevant. If you over-drive the electret gain you are going to have a problem.
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 05 Янв 2018 15:47 #5

  • efficace
  • efficace аватар
  • Вне сайта
  • Сообщений: 41
  • Спасибо получено: 1
Hello
So I lowered the microphone gain to 10db, but I still had a noise in the modulation.
I have to activate the Noise Gate Ratio: 1: 2.3 / Threshold: -50 db Attack 10ms release: 10 ms and the residual has disappeared.

This Radio is superb but difficult to adjust, it does not have the logic of operation as my icom
I thank you for your help :so_happy:
F4DNK Ingenieur Radar military S/390 IBM
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 06 Янв 2018 14:58 #6

  • efficace
  • efficace аватар
  • Вне сайта
  • Сообщений: 41
  • Спасибо получено: 1
There is a problem

The noise problem in the audio comes from the connector that is on the photo.
There must be contact problems, because when I press connects
The sound of the audio residue disappears and the audio becomes very clear. No need to put the noise gate even with a gain of 50

Who can help me on this subject to have the diagram or see even the small circuit to replace it I am a technician.
contact.jpg
F4DNK Ingenieur Radar military S/390 IBM
Последнее редактирование: 06 Янв 2018 14:58 от efficace.
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 06 Янв 2018 15:42 #7

  • G3XLG
  • G3XLG аватар
  • Вне сайта
  • Сообщений: 105
  • Спасибо получено: 20
Efficace
You should report it to Expert.
Go to the TAB at the top of the page "SUPPORT", then go to "TECHNICAL SUPPORT" & complete the email document.
73
Ray G3XLG
Администратор запретил публиковать записи гостям.
Спасибо сказали: efficace

Problem of connection on micro MC1 with residual noise in the transmission 09 Янв 2018 19:58 #8

  • efficace
  • efficace аватар
  • Вне сайта
  • Сообщений: 41
  • Спасибо получено: 1
Hello
I sent a support request but I still have no feedback!
F4DNK Ingenieur Radar military S/390 IBM
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 09 Янв 2018 20:28 #9

  • g0cgl
  • g0cgl аватар
  • Сейчас на сайте
  • Erik EI4KF / G0CGL
  • Сообщений: 886
  • Спасибо получено: 352
Expert Electronics take annual holiday until today. Then they work through customers' messages. I would wait a day or so before sending a reminder.

Erik.
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 10 Янв 2018 06:43 #10

  • efficace
  • efficace аватар
  • Вне сайта
  • Сообщений: 41
  • Спасибо получено: 1
Hi Erik,
Thanks for the information Erik, I understand the holidays it's important too :write:
73 F4DNK
F4DNK Ingenieur Radar military S/390 IBM
Последнее редактирование: 10 Янв 2018 06:45 от efficace.
Администратор запретил публиковать записи гостям.

Problem of connection on micro MC1 with residual noise in the transmission 11 Янв 2018 21:13 #11

  • efficace
  • efficace аватар
  • Вне сайта
  • Сообщений: 41
  • Спасибо получено: 1
Hello
For information the support contacted me and solved the problem. it was an internal cable problem.
Congratulations they are very strong! :yahoo:
F4DNK Ingenieur Radar military S/390 IBM
Администратор запретил публиковать записи гостям.
Время создания страницы: 0.147 секунд