TopBand: QST Antenna Tuner Review

[W8JITom@aol.com]

In a message dated 97-02-25 10:19:42 EST, hwardsil@wolfenet.com (Ward Silver)
writes:

<< 
 To be sure, there are some tuners that are better than others.  N4XM's
 looks like the best of the bunch.  But a little extra work outside means
 less expensive shack heating inside.
  >>

Actually if you added higher value capacitors to any of the other T network
tuners they would work as well as the Xmatch.

If you read carefully, you will see it is a T network tuner with large C.
That hurts
ten and fifteen meter performance, but improves 160 a whole bunch.

The problem with most T network tuners is they do not have enough
capacitance,
so Q is too high on 160. This was all covered in rec.radio.amateur.antenna


<< 
 Meters, switches would not hurt, so what about the Heath SA2060?
  Anyone have performance data?
  >>

Look at the amount of capacitance. That will govern 160 performance 
into low impedance or capacitive reactive loads. 

73 Tom

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