Quote below

Actually, it depends upon where that high SWR physically is located.

A dummy load with a 1.3:1 SWR connected directly at the tx output connector
will not produce a visible ghost in the demodulated TV picture.

A 1.3:1 antenna SWR at the far end of more than about 500 feet of otherwise
matched transmission line connected to that same transmitter WILL produce a
visible ghost.

-RF
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"Henry Kolesnik" wrote
Then why can high SWR on a TV Tx cauuse ghosts or smearing on the TV Rx?