[TenTec] Omni V vs. Headphones

[WA3FIY]

You don't really have to get that precise.  Anything from 180 
ohms to 330 ohms or so will work justfine, the higher the 
better.  

-Lee-

On 25 Mar 2002 at 9:39, Mike Hyder -N4NT- wrote:

> Put a 192 ohm resistor in series with your headphones?
> 
> Mike N4NT
> 
> ----- Original Message -----
> From: "Mark Erbaugh" <mark@microenh.com>
> To: <tentec@contesting.com>
> Sent: Monday, March 25, 2002 9:14 AM
> Subject: [TenTec] Omni V vs. Headphones
> 
> 
> | Recently, I connected my Kenwood HS-5 headphones to my Omni V. There
> is a | noticeable rumble in the audio. The level of this rumble seems
> to be | independent of the AF Gain setting. In fact, with the AF gain
> at minimum, | the rumble is still present.  If I partially remove the
> headphone plug, so | that the speaker is again active, but there is
> still audio in the | headphones, the rumble completely disappears. | |
> I tried a Heil ProSet Plus headset. It does not exhibit the rumble,
> even | when the speaker is muted. | | I suspect that this is an
> impedance issue. The impedance of the Kenwood | headset is 8 ohms. The
> Heil is 200 ohms. | | Is there a simple fix that could be made into an
> adapter cable that would | allow the Kenwood headset to be used? | |
> 73, | Mark
> 
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