[Elecraft] Antenna Analyzer

[Ronnie Hull]

Yes SMALL and PORTABLE is what I am interested in. I never wanted a TDR. Rig experts are fine analyzes but out of the league of what I want which is something to toss in my "go" bag

Ronnie W5SUM

Sent from my iPhone

> On Dec 1, 2017, at 11:19 AM, George Thornton <gthornton at thorntonmostullaw.com> wrote:
> 
> The Time Domain Reflectometer (TDR) is a hugely important feature, and is now available with other brands, including some of the RigExpert models.
> 
> I do a lot of field work with both HF and VHF/UHF.  In my experience most of the problems I have encountered have been traced to cable defects of one kind or another.  The TDR function allows you to quickly and reliably test the integrity of cabling, allowing you to identify the exact location of the defect.
> 
> I am partial to the RigExpert models, which have been reliable and accurate, and very easy and intuitive to use.  
> 
> My only quarrel with RigExpert is that they do not offer water resistant sealed cases.   These can get damaged in a wet environment.
> 
> 
> 
> T-----Original Message-----
> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim Sheldon
> Sent: Friday, December 1, 2017 5:39 AM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Antenna Analyzer
> 
> I was introduced to the SARK-110 several years ago and besides being an excellent antenna analyzer, it had one feature that nobody else had (when I bought the SARK) and that is called a "Time Domain Reflectometer".  This allows you to find breaks, impedance bumps and other anomalies in cable runs.
> 
> During my 20 years in the Army, I was introduced to a hugely expensive HP-140A oscilloscope with a TDR plug in.  We used it to find cuts in our buried coax where the local people were digging it up for the copper (back in 1967).  From that point on, I always wanted a TDR but they were way too expensive (even used) for a poor ham to even consider until I was introduced to the SARK by a good friend at the "OzarkCon" QRP convention.  It paid for itself quickly by finding where a gopher (or
> mole) had chewed mostly through some buried coax I had going to a vertical in the back yard.  The SARK's TDR pinpointed the break within a foot and it was probably more accurate than that as my measurements when following the cable were somewhat sloppy.
> 
> It also makes a pretty decent signal generator as well, can be calibrated against WWV with not too much effort, but the minimum signal you can output is 50 microvolts (S9) so a good external step attenuator is needed along with double shielded cables to minimize feedthrough of 
> the SARK's output signal.   Oh yes, I did mention, it's an excellent 
> antanna analyzer as well and it will do Smith Chart plots and other stuff too.  You can control it with a computer via USB too.
> 
> No financial interest in the company, just a very happy user.
> 
> Jim - W0EB
> 
> ------ Original Message ------
> From: "John Oppenheimer" <john at kn5l.net>
> To: elecraft at mailman.qth.net
> Sent: 12/1/2017 7:23:20 AM
> Subject: Re: [Elecraft] Antenna Analyzer
> 
>> The SARK 110 is very small with many features:
>> 
>> http://www.sark110.com/
>> 
>> John KN5L
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