[TowerTalk] Modeling antenna traps

[Jeff AC0C]

Worked OK for me but the dip is subtle and to get an accruate reading you 
need to minimize the coupling once you are in the ballpark.

73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie

-----Original Message----- 
From: Jim Thomson
Sent: Tuesday, June 07, 2016 8:57 AM
To: towertalk at contesting.com
Subject: [TowerTalk] Modeling antenna traps

Date: Mon, 6 Jun 2016 12:58:01 -0500
From: "Gary Schafer" <garyschafer at largeriver.net>
To: "'Timothy Holmes'" <taholmes160 at gmail.com>,
<towertalk at contesting.com>
Subject: Re: [TowerTalk] Modeling antenna traps

I don't think that you will have much luck with the MFJ used as a grid dip
meter. You will need a decent grid dip meter.

73
Gary  K4FMX


##  I have never been able to grid dip anything with either my 259 or  259B.
That was using both optional grid dip  coils.  I tried every simple circuit 
you could think of
just to test that feature.   Like a simple cap and coil in parallel.  Even 
tried different cap + coil combos to no avail.
Series, parallel,   you name it, didn’t work.   Finally threw in the towel.
Even  W8JI sez they don’t work  Dunno why they sell the pair of optional 
grid dip coils.   Nobody
else here in town had any luck  either.  Only thing that works is a real 
grid dip meter.

Jim  VE7RF
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