Fw: Questions from a Possible Builder/Owner

[W9DHI]

From: "Gregg R. Lengling" <[hidden email]>
To: "Jim Harris" <[hidden email]>
Sent: Monday, January 03, 2005 9:09 PM
Subject: Re: [Elecraft] Questions from a Possible Builder/Owner

> See my answers interleaved after the questions.
>
> Gregg R. Lengling, W9DHI, Un-Retired
> K2/100 SN 3075
> http://www.milwaukeehdtv.org
>
> ----- Original Message -----
> From: "Jim Harris" <[hidden email]>
> To: <[hidden email]>
> Sent: Monday, January 03, 2005 9:05 PM
> Subject: [Elecraft] Questions from a Possible Builder/Owner
>
>
>> I've only been licensed about three years but have
>> been building electronic kits and related hardware
>> since 1954.  My intent is to build a K2/100 with most
>> of the bells and whistles but have been unable to find
>> specific answers to three questions.
>>
>> 1.  How does the K2/100 key an RF amplifier (AL-811)?
>> I have a Heil footswitch with a second cable for
>> amplifier keying.  But, would prefer to use keying
>> from the rig itself.
>>
> Just use the keying output from the KPA100, I'm sure you remember putting
> in the FET and RCA Jack for it.
>
>> 2.  How is ALC sent from my RF amplifier back to the
>> K2/100?  I've reviewed the K2/100 manuals and cannot
>> find how it is done.  Maybe it really isn't needed.
>>
> There is no ALC and most operators don't have a problem with it.
>
>> 3.  How do I adapt my Heil Headset Pro and Goldline
>> microphones.  They currently are used with an
>> IC-746pro by using a Heil adapter cable.  They now go
>> thru a homebrew switchbox with the adapter cable
>> between the rig and switchbox.
> Why not make a cable to go from your switchbox to the K2 for the basic K2
> jack wiring (all the jumper posts directly across), if you need bias
> voltage for the mics you probably already created it in your switch box,
> if you didn't you can create it from the K2 as per the instructions
> included with any of the Heil mics from Elecraft.
>>
>> I cannot see any other major problems.  I've wound
>> baluns and view winding toroids a bit tedious but
>> there is nothing like "rolling your own."  My
>> background includes professional soldering training
>> and experience.  I have a scope, DVM and other minor
>> pieces of test equipment. Am I over looking any major
>> areas that need to be covered before starting?
>>
> You're pretty much ready to go, I also used a Service Monitor to do
> receiver and transmitter alignment and freq. setting but it's really not
> required.
>> Thank you for your response.
>>
>> Jim, AB0UK
>>
>>
>>
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