[TowerTalk] Portable analyzers

[Bob K6UJ]

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 at 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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