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tech / rec.aviation.soaring / Dittel FSG-71M Low Volume

SubjectAuthor
* Dittel FSG-71M Low VolumeGeorge Haeh
`* Dittel FSG-71M Low VolumeJohn_DeRosa_OHM_Ω_http://aviation.derosaweb.net
 `* Dittel FSG-71M Low VolumeNicholas Kennedy
  `* Dittel FSG-71M Low VolumeRoss
   `* Dittel FSG-71M Low VolumeGeorge Haeh
    `- Dittel FSG-71M Low VolumeSoar MGSA

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Dittel FSG-71M Low Volume

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Subject: Dittel FSG-71M Low Volume
From: george.haeh@gmail.com (George Haeh)
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 by: George Haeh - Mon, 14 Aug 2023 02:16 UTC

In the last week or so, the receiver volume is very low, even with the volume set to maximum.

Any suggestions?

Re: Dittel FSG-71M Low Volume

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Subject: Re: Dittel FSG-71M Low Volume
From: jhderosa@gmail.com (John DeRosa OHM Ω http://aviation.derosaweb.net)
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 by: John DeRosa OHM Ω - Wed, 16 Aug 2023 00:27 UTC

On Sunday, August 13, 2023 at 9:16:50 PM UTC-5, George Haeh wrote:
> In the last week or so, the receiver volume is very low, even with the volume set to maximum.
>
> Any suggestions?
That is an odd one. Some shot-in-the-dark ideas;

- If the audio level is low behind a background of increased "static" it might be a bad antenna.
- You might want to check the wiring from the radio to the speaker as it may have become frayed.
- The speaker may have become defective. Weak permanent magnet maybe.
- Send it in for a bench test. Contact info for repair shops can be found in my document http://aviation.derosaweb.net/presentations/#transceiver

Good luck, John

Re: Dittel FSG-71M Low Volume

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Subject: Re: Dittel FSG-71M Low Volume
From: nickkennedycontracting@gmail.com (Nicholas Kennedy)
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 by: Nicholas Kennedy - Thu, 17 Aug 2023 03:14 UTC

George
That is an old radio now.
They don't last forever.
I had one and my last service from Miami radio was 450 bucks.
I don't know if it's worth putting any $ into it.
Look for a replacement from that guy from Europe that posts here, Ross, I got a newer used Dittel off him for I think 350, it plugged right in and works great.
My 2 cents
Nick
T

Re: Dittel FSG-71M Low Volume

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Subject: Re: Dittel FSG-71M Low Volume
From: hcdswiss@gmail.com (Ross)
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 by: Ross - Fri, 18 Aug 2023 08:26 UTC

Sounds more like an internal issue.

I have a few 25khz radios here. I can even offer a freshly overhauled FS71M for a reasonable price.
Feel free to contact me at hcdswiss at gmail dot com

Re: Dittel FSG-71M Low Volume

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Subject: Re: Dittel FSG-71M Low Volume
From: george.haeh@gmail.com (George Haeh)
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 by: George Haeh - Mon, 28 Aug 2023 01:36 UTC

Flipping the squelch switch and the volume several times got the volume back, but scratchy. I took the radio home, pulled the knobs (1.3 mm hex bit) and face plate; then squirted SQ and volume control with electronic cleaner - very small openings.

Reinstalled radio and it's now working fine.

Re: Dittel FSG-71M Low Volume

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Subject: Re: Dittel FSG-71M Low Volume
From: soar.mgsa@gmail.com (Soar MGSA)
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 by: Soar MGSA - Mon, 28 Aug 2023 13:44 UTC

On Sunday, August 27, 2023 at 9:36:58 PM UTC-4, George Haeh wrote:
> Flipping the squelch switch and the volume several times got the volume back, but scratchy. I took the radio home, pulled the knobs (1.3 mm hex bit) and face plate; then squirted SQ and volume control with electronic cleaner - very small openings.
>
> Reinstalled radio and it's now working fine.

Our club has a G102 with a FSG60M that had a low volume. Sent to Peninsula Avionics.
They found a bad capacitor in the audio circuit and replaced it. Total bill under $400.
It works well now.

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