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Re: [TowerTalk] Portable analyzers

To: towertalk <TowerTalk@contesting.com>
Subject: Re: [TowerTalk] Portable analyzers
From: Richard Solomon <dickw1ksz@gmail.com>
Date: Mon, 11 Jul 2016 15:18:18 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
It seems to be about that old. I stuck
a small re-chargeable battery on the
back that powers it for several days.

One nice thing about living out here
in the Sonoran Desert, AM BC Stations
are few and far between.

I also have an Array Solutions 4170C,
but it is definitely a lab creature. A tad
tough reading a screen out in the bright
sun.

73, Dick, W1KSZ

On Mon, Jul 11, 2016 at 1:52 PM, Bob K6UJ <k6uj@pacbell.net> wrote:

> Wow Dick,,
> You still have an MFJ-259 ?
> That's incredible,  I think they came over on the Mayflower.
> Just kidding,  I have one too and it still works fine. :-)
> I bought an AA-30 also and like the graphs it does.
>
>
> 73,
> Bob
> K6UJ
>
>
>
>
>
> On 7/9/16 10:48 AM, Richard Solomon wrote:
>
>> You guys can laugh all you want to,
>> but my MFJ-259, which is quite old,
>> maybe 15 years ?? Still works like
>> a charm.
>>
>> 73, Dick, W1KSZ
>>
>> On Sat, Jul 9, 2016 at 9:59 AM, Jim Brown <jim@audiosystemsgroup.com>
>> wrote:
>>
>> On Sat,7/9/2016 4:52 AM, Bill Cotter wrote:
>>>
>>> Attached is a marketing analysis of several handheld analyzers I did for
>>>> our ham club. It has links to the technical details.
>>>>
>>>> The Tower Talk list does not support attachments.
>>>
>>> Hardy,
>>>
>>> You said you wanted something to drag to the top of a tower, but with
>>> this
>>> analyzer, you can easily get good data from anywhere on the feedline,
>>> including the shack.
>>>
>>> http://sdr-kits.net/VNWA3_Description.html
>>>
>>> I no longer climb anything higher than a stepladder, so I do all my
>>> measurements from the shack. It needs no power supply, getting its power
>>> from the USB port that connects it to the computer that processes the
>>> data.
>>> As an engineer, you will really appreciate it.
>>>
>>> It does TDR by computing the inverse FFT of a sweep, which can be set for
>>> any range that you choose for the level of detail you need. There's some
>>> math built into the control software, and it exports data in several
>>> formats, including s1p Touchstone files, which can be imported by
>>> SimSmith
>>> and ZPlots, among others.  It's a full vector network analyzer, so it
>>> also
>>> measures S21.
>>>
>>> I paid $740 three years ago, shipped to my W6 QTH, with calibration loads
>>> and a case that I wouldn't order again. With the Pound in free fall, my
>>> guess is that you could buy it for about $650 today. It's a real winner.
>>> Well supported by the mfr (some hams in the UK) and the designer,
>>> DG8SAQ, a
>>> university EE prof who also wrote the software.
>>>
>>> 73, Jim K9YC
>>> _______________________________________________
>>>
>>>
>>>
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>>>
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>>
>>
>>
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