Author Topic: modulation problem regarding low audio-frequencies  (Read 24788 times)

sm2o

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Re: modulation problem regarding low audio-frequencies
« Reply #15 on: 2012-07-29, 21:07:41 »
Hi

There is 10uF unpolarized capacitors available but if you don't have one use a volt meter and measure the voltage over the capacitor you have there, and put the new capacitor with the positive + connection to the pin which the voltmeter showed had the higher voltage.

73 de mike


Devi pilot

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Re: modulation problem regarding low audio-frequencies
« Reply #16 on: 2017-07-09, 12:12:50 »
Hello, friends! Recently I became a happy owner of a DX-SR8 transceiver, but not for long I enjoyed it. I will not write much, briefly: the transistor in PA, Q802, failed. Did not help his replacement. 3 transistors failed. Then I bought a new PA bord, but again the same transistor Q 802 failed. I do not know what to do next ... ......  :(
Maybe someone knows something on this issue. Thank you!

  Sorry for my English.

xplane

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Re: modulation problem regarding low audio-frequencies
« Reply #17 on: 2017-07-09, 14:02:32 »
So I can only recommend to take a little more money and buy something reasonable.
I sold my Alinco DX-SR8 in those days and bought a Kenwood TS480 instead.
Everything works fine and even the remote operation with good modulation.
I have never regretted the additional investment.
« Last Edit: 2017-07-09, 14:46:22 by xplane »

Devi pilot

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Re: modulation problem regarding low audio-frequencies
« Reply #18 on: 2017-07-09, 15:03:40 »
I understood. Thank you!    :) I think you are right!
« Last Edit: 2017-07-09, 15:06:31 by Devi pilot »