[Elecraft] Re: lowest stable power of K2

Johnny Siu vr2xmc at yahoo.com.hk
Mon Jul 6 09:05:12 EDT 2009


Thanks, Don.  You are great!

73 Johnny




________________________________
寄件人﹕ Don Wilhelm <w3fpr at embarqmail.com>
收件人 Johnny Siu <vr2xmc at yahoo.com.hk>
副本(CC) Elecraft <elecraft at mailman.qth.net>
傳送日期﹕ 2009 年 7月 6 日 星期一 下午 8:50:28
主題: Re: [Elecraft] lowest stable power of K2

Johnny,

To prevent damage to the K144XV from inadvertent overpowering at the input, I recommend you set the K144XV for 5 watts input.  That will allow you to run the K2 in a power stable range while driving the transverter.

If you insist on using a lower input to the K144XV, I recommend you look at an old mod by WJ4P.  That mod reduces the range for the power control to 1/10 the normal range  See http://www.madisoncounty.net/~kj5tf/K2mWmod.htm.  If the power range is reduced tenfold, the power stability should increase tenfold in the process.

There are also application notes on the Elecraft website that deal with milliwatting the K2.

Johnny Siu wrote:
> Hello Group,
> 
> My K2 does not have a K60XV.  In the connection with the XV144, I would like to use the lowest power from my K2. 
> From the SEC menu, I can adjust the power output to as low as 0.1W.  However, I have no idea about whether this 0.1W is stable.  Could any of you advise what is the lowest stable power from K2.  My K2 is fitted with KAT2.
> 
> TNX
> 
> Johnny VR2XMC
> 
> 
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