[Lowfer] LF Lop Antennas [AKA Loop Antennas]

[jrusgrove at comcast.net]

In agreement with John...

I have an HP 4342A Q meter, and while it works well for certain tasks, it's 
not that useful for others. Measuring capacitors and low Q ferrite inductors 
(plus a variety of other tasks) is best done with a bridge - like the GR 
516C that we're using.

Marrying the bridge to an HP 3586C selective level meter makes a real nice 
frequency agile setup. The tracking generator output serves as the generator 
and the receiver is used as the detector. While not exactly 'portable' I do 
lug the setup out to the transmit antenna from time to time. Wouldn't trade 
that bridge for anything.

Jay

----- Original Message ----- 
From: "John Andrews" <w1tag at w1tag.com>
To: "Discussion of the Lowfer (US, European, &amp; UK) and MedFer bands" 
<lowfer at mailman.qth.net>
Sent: Monday, August 25, 2008 8:38 PM
Subject: Re: [Lowfer] LF Lop Antennas [AKA Loop Antennas]


> Jay and I have impedance bridges that can measure these kinds of caps to 1 
> pF, and series resistances to 0.1 ohms. But you'd have to pry our cold, 
> dead hands from the bridges... <g>
>
> John A.
>
>
>> As I recall the Boonton instruction book describes a procedure which is 
>> probably better than nothing but any decent capacitor is going to have Q 
>> which is much higher than that of the test coil.
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