[TenTec] tuning and transmiting the delta 580

[john ferro]

i have the drive set to about 5 and the alc set to 8 - i can adjust the swr 
down to 1 on 20 meters - but do i leave the alc knob pulled out and then 
switch the toggle to ssb?? i think the mic might be bad.


>From: "Stuart Rohre" <rohre at arlut.utexas.edu>
>Reply-To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
>To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
>Subject: Re: [TenTec] tuning and transmiting the delta 580
>Date: Thu, 6 Sep 2007 18:07:57 -0500
>
>Normally you tune up in CW mode, and then swich to SSB for voice ops.
>
>To test the mike, you can find out which two wires are the mike audio
>itself.  Then, hook onto those pins of  the plug, (mike off the radio), and
>go into an AC DVM scale.  Or even the low AC scale of  a VOM, if it is
>20,000 ohms per volt type.  Speaking into the mike, if it is good---you 
>will
>see a few millivolts of AC generated.
>
>This is more easily seen on an analog meter rather than a digital meter, 
>due
>to the dwell time of the pointer.
>
>This works for mikes that either are self powered, or dynamic or crystal 
>and
>don't need power to operate.  An electret mike can have its own battery, or
>may rob power from the radio, so be sure of the type of mike you have 
>before
>testing.
>
>I don't know about the ALC button on this particular rig.
>Most rigs have a way for you to switch metering from ALC to something else
>like Collector current, but I don't have that model of Ten Tec.  ALC is a
>light that flashes on my Scout and Argonaut V.
>
>Does your rig have a mike gain control?  It was not set at minimum was it?
>
>-Stuart
>K5KVH
>
>
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