That same "balun" (actually a common mode choke) will work the same with
the internal tuner. In other words, if it is "good for the T1", it will
also be "good for the internal tuner".
A common mode choke at the antenna feedpoint will solve many problems.
If the feedline does not run perpendicular to the center of the antenna,
the feedline may pick up radiation from the radiator and an additional
common mode choke at the KX2 end can be helpful.
73,
Don w3FPR
On 7/19/2017 4:13 PM, Ignacy wrote:
Internal tuner is very convenient with extra pluses of remembering setting
and not requiring an extra battery. But with some antenna x freq
combinations, SWR is sensitive to touch and a balun is needed - an extra
weight. With T1, that balun could be a few turns of jumper made of RG-174
around a toroid.
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