Butch:
Thanks for the well-reasoned argument.
I eventually may get a TW2 also, if I can come up with the bucks, but not
for now.
The TW1 is about all I can do at this time.
Sounds like a real neat unit, though.
73 from Tom Behler: KB8TYJ
----- Original Message -----
From: "Butch Bussen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, September 30, 2008 11:06 AM
Subject: Re: a couple of TW1 questions
> It isn't the chip that limits the frequency range of the tw1. It is
> such things as the sensing circuit, response of the diodes, reactance of
> the coupling and so forth. A lot more complicated than just a chip.
> Think about it, that is why manufacturers like byrd have different
> elements for different bands. That is why you have to switch bands on
> the tw2 for 2m, 220 and 440. Diodes and circuits respond different at
> different frequencies.
> 73s
> Butch Bussen
> wa0vjr
>
> On Mon, 29 Sep 2008, T Behler wrote:
>
>> Colin:
>>
>> Have you or anyone tried that new upgraded chip, and is it worth it?
>>
>> Also, I agree that it'd be nice if you could get a better chip for the
>> TW1
>> that would do at least 2 meters as well.
>>
>> 73 from Tom Behler: KB8TYJ
>>
>> ----- Original Message -----
>> From: "Colin McDonald" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, September 29, 2008 7:41 PM
>> Subject: Re: a couple of TW1 questions
>>
>>
>>> 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
>>>>
>>>>
>>>> --
>>>> No virus found in this incoming message.
>>>> Checked by AVG.
>>>> Version: 7.5.524 / Virus Database: 270.7.5/1697 - Release Date:
>>>> 9/29/2008
>>> 7:40 AM
>>>>
>>>>
>>>
>>
>>
>
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