yes, it means you can upgrade the chip to a better one if you want to.
Not all chips are created equal, and for cost reasons, the manufacturer
likely uses the lowest grade chip they can get away with.  So, for better
stability, and better accuracy, you can buy a higher quality, more expensive
chip and swap it out.
I really wish it meant you could swap in another chip that would allow for
the VHF/UHF ranges in the tw1.
73
Colin, V A6BKX

----- Original Message ----- 
From: "T Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, September 29, 2008 5:18 PM
Subject: a couple of TW1 questions


>
> Hi, all.
>
> Well, I ordered my TW1 talking SWR and Watt meter today from W4RT
> Electronics.
>
> So, hopefully, I'll get it within a week or so.
>
> I do have a couple of questions though:
>
> 1.  An upgrade  to the TW1 is discussed on the W4RT web page, but it's
> unclear to me as to what the upgrade is.  Here's the quote from the web
> page:
>
> "The TW-1 is microprocessor controlled, and can easily be upgrade in the
> field with a simple chip exchange. It requires 11 - 15 volts DC at 200 mA
> maximum, but consumes almost no current when not speaking."
>
> Anyone know what this upgrade is referring to?
>
> 2.  Does anyone have a text-based manual for the TW1?  Or, is it available
> on icanworkthisthing.com?
>
> Thanks, and 73 from Tom Behler:  KB8TYJ
>
>
> -- 
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