[Kenwood] Kenwood TS850 - improved audio quality and reducedoutput

Sun Nov 9 15:18:28 EST 2008

I agree, use a microphone designed for the radio. 
By the way, the transmitter's speech amplifier is only designed to pass a certain range of audio frequencies. Trying to pass audio frequencies outside the upper and lower audio frequency limits of the speech amplifier is like trying to push a complete hard boiled egg through the small opening of a soda bottle without messing up the egg. No, creating a vacuum inside the bottle does not count...:) 
73
Mike
W5RKL
--- On Sun, 11/9/08, Dave Edwards <kd2e at comcast.net> wrote:
From: Dave Edwards <kd2e at comcast.net>
Subject: Re: [Kenwood] Kenwood TS850 - improved audio quality and reducedoutput
To: w5rkl at yahoo.com, Kenwood at mailman.qth.net, "Peter Ravn" <fasan5 at privat.dk>
Date: Sunday, November 9, 2008, 1:39 PM

Plus...to avoid complications (and probably end up 
with a better signal!!) I'd suggest removing all that slop, and plug in an MC60 
microphone and have fun on the air!!

...Dave
 ----- Original Message ----- 
 From: 
 Michael Waldrop 

 To: Kenwood at mailman.qth.net ; Peter Ravn 
 Sent: Sunday, November 09, 2008 2:14 
 PM
 Subject: Re: [Kenwood] Kenwood TS850 - 
 improved audio quality and reducedoutput

 Hello Peter,
What do you mean by
"No matter what I do, it is impossible to reach the 
 magic 100 watt on the ALC meter"
First, ALC does not 
 indicate of how much RF output power your transmitter is producing. ALC 
 voltage is not like an RF driving signal, meaing the higher the ALC 
 meter reading the higher RF output the final amplifier will 
 produce.
ALC is a "control voltage" that is used to "control an 
 earlier stage's gain" in order to bring the final amplifier back into a 
 more "linear state". ALC voltage is produced when the final amplifier is 
 "no longer operating in a linear state". Therefore, as the ALC voltage 
 increases (higher ALC meter indication) the more "reduction in gain" of 
 the earlier stage occurs.
73
Mike
W5RKL
--- On 
 Sun, 11/9/08, Peter Ravn <fasan5 at privat.dk> 
 wrote:
 From: 
 Peter Ravn <fasan5 at privat.dk>
Subject: [Kenwood] Kenwood 
 TS850 - improved audio quality and reduced output
To: 
 Kenwood at mailman.qth.net
Date: Sunday, November 9, 2008, 11:43 
 AM

 After having replaced the HC5 microphone with 
 the ATR30 by Audio Technica,   the audio quality of my 
 Kenwood TS850S has improved considerably. As before I use the W2IHY 8 
 band equalizer and the EQ Plus by W2IHY, and the settings on the 
 equalizers are on the whole as with the HC5. Only the processor gain 
 and mike gain on the transceiver have been increased from 9 to 10 
 o'clock.
 While audio quality has improved, output has 
 gone down from 100 to about 85 watt. No matter what I do, it is 
 impossible to reach the magic 100 watt on the ALC meter. Most 
 surprisingly of all, the output from the equalizers to the transceiver 
 are higher with the ATR30 than with the HC5. So where do the extra15 
 watt disappear into?

 Thanks once again
 OZ8CTH/Peter______________________________________________________________
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