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RE: [BULK] - Re: [TowerTalk] Grid dip meter and Yagi elements

To: 'on4kj' <on4kj@skynet.be>, Robert Shohet <kq2m@earthlink.net>,towertalk@contesting.com, W8JI@contesting.com,Dale L Martin <kg5u@hal-pc.org>
Subject: RE: [BULK] - Re: [TowerTalk] Grid dip meter and Yagi elements
From: Steve Katz <stevek@jmr.com>
Date: Wed, 4 Aug 2004 10:38:20 -0700
List-post: <mailto:towertalk@contesting.com>
The Measurements Corp. model 59 was sold by the tens of thousands back in
the 50s and 60s and is very good.  I see them surplus all the time in
reasonably good and working condx for about $100, and they're worth it.  I
still use mine all the time!  -WB2WIK/6

"There is no reason anyone would want a computer in their home." - Ken
Olson, Chairman & Founder, Digital Equipment Corporation (1977)

> -----Original Message-----
> From: on4kj [SMTP:on4kj@skynet.be]
> Sent: Wednesday, August 04, 2004 1:48 AM
> To:   Robert Shohet; towertalk@contesting.com; W8JI@contesting.com; Dale L
> Martin
> Subject:      [BULK] - Re: [TowerTalk] Grid dip meter and Yagi elements
> 
> A good Grid Dip ........ look for a good old " Boonton " in surplus.
> MFJ as a grid dip, it works, but it does'nt show the deep sharp dips ( Tom
> explained  why ) one would expect comparing with our good old triode dip
> meters.
> 
> Jos on4kj
> 
> 
> ----- Original Message ----- 
> From: "Robert Shohet" <kq2m@earthlink.net>
> To: <towertalk@contesting.com>; <W8JI@contesting.com>; "Dale L Martin"
> <kg5u@hal-pc.org>
> Sent: Wednesday, August 04, 2004 5:19 AM
> Subject: Re: [TowerTalk] Grid dip meter and Yagi elements
> 
> 
> > Hi Dale,
> >
> > Tom nailed it when he said to buy a real GDO. Years ago,
> > I also bought the MFJ "plug-in" for the purpose of tuning
> > and cutting 1/4 wave coax stubs.  This purchase was based on
> > the MFJ tech's claim that it worked great for him on Coax - but he lied!
> > Yep,
> > he cited the ARRL article as "proof" of how well it worked.
> >
> > After I couldn't get it to work, I called the tech
> > and held his feet to the fire - finally he 'fessed up - he then changed
> > his story from saying that he used it himself with coax, to based
> > on the ARRL article, he THOUGHT it SHOULD work with coax.
> >
> > But then he (the tech) refused to take the product back for a refund!
> > I appealed to Tom, W8JI and being the gentleman that he is, Tom
> > personally sent it back and requested the refund on my behalf.
> >
> > It took SIX weeks and FOUR unanswered follow-up telephone calls
> > to receive a refund, and then MFJ refused to refund the $6.00 UPS
> > charge that I paid to get the plug-in. that was bought on the
> recommendation
> > of the MFJ tech who had lied about how well he had seen it work with
> coax!
> >
> > Morals of the story:
> >
> > 1) If it is an MFJ product that you are thinking of buying  and you
> > want the TRUTH about how well it works (or doesn't), ask W8JI.
> >
> > 2) Buy good quality equipment to properly measure whatever it is
> > you need to measure.
> >
> > 73
> > Bob KQ2M
> >
> > ----- Original Message ----- 
> > From: "Dale Martin" <kg5u@hal-pc.org>
> > To: <towertalk@contesting.com>
> > Sent: Tuesday, August 03, 2004 10:25 PM
> > Subject: RE: [TowerTalk] Grid dip meter and Yagi elements
> >
> >
> > >
> > > > I am assuming you guys talking about "grid dip meters" are not
> really
> > > > talking about these old devices.  What is the modern equivalent?
> > > > I have an
> > > > MFJ 259B, for instance.  It is easy to get the resonant frequency
> > > > of a yagi
> > > > element split and insulated in the middle.  Can I use it to
> inductively
> > > > couple to a continuous yagi element or otherwise determine that
> > element's
> > > > resonant frequency in any way?
> > > >
> > >
> > > Mark,
> > >
> > > I've got a B&W grid dip meter which uses external coils of various
> sizes
> > to
> > > inductively couple with the 'load' in question.  It works great.  I've
> > used
> > > it a couple of times to evaluate the traps of Cushcraft A3's.  I found
> > that
> > > MFJ has (or had) an optional plug-in for the MFJ-259 which allows it
> to
> > act
> > > as a GDM.
> > >
> > > I'll be happy to send you my plug-in and if you want to give it a try.
> > >
> > > It didn't work worth beans when I was testing traps.
> > >
> > > 73,
> > > dale, kg5u
> >
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with
> any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> 
> 
> _______________________________________________
> 
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with
> any questions and ask for Sherman, W2FLA.
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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