[Kenwood] MC 60A question

2003年9月19日 15:25:00 -0500

I agree with Gary...I have a Kenwood TS-520S and use a D-104 mike. The mike came with
the amp built in and as Gary indicated great on AM. I used it about a week on the Kenwood
before I tore the amp out of the base. Works much better now on SSB. Also the 520
has excellent speech processor circuit and will give you more than enough punch, but again
you have to watch it when the rest of the house is up and around as just normal voices
a couple of rooms away will be heard on the air. Only time I use processing is on very
late night 40 and 80 meter nets or ragchewing \\
Bob,AF2HD
At 01:06 PM 9/19/2003 -0700, Gary McAdams wrote:
>Chuck, N8GMB Asks:
>>----- Original Message ----- 
>>From: [email protected] 
>>>>Hi,
>>>>Why is the preamp useless for SSB? 
>>>Fair question Chuck. I'll tell you what I have found.
>>First, most of the Kenwood radios that would be used with
>this mike already have plenty of gain in the audio circuitry.
>With the mike preamp gain added to that, you will hear every
>breath the operator takes. You can hear the television two
>rooms away and the dog barking down the block. The added
>background noise will make your audio muddier and harder
>to understand.
>>In AM and FM service, the preamp is more useful because
>these modes need a little more audio drive into the rig to 
>sound good. In SSB the extra gain is wasted.
>>In addition, have you used your microphone in the presence
>of a strong RF field such as you might see if you are running
>a kilowatt? I can assure you that the preamp is VERY sensitive
>to this and the RF feedback will sound positively awful!
>>I found that out the hard way!
>>Of course, each operator is individual, and your experiences may
>vary from mine... I will say that I usually get good to very good
>audio reports using my MC-60 into the TS-940. With no preamp
>and minimal mike gain.
>>Again, YMMV.
>>73 Gary WG7X
>- - -
>>Your moderator for this list is:
>Larry Wilson KE1HZ [email protected]
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