Hi MikeBear:
Thanks for the update on the latest version of this good work horse of an antenna. I don't know if this link to RCA is the same as you bought, but it's the only one labeled close to what you mentioned above:
https://www.rcaantennas.net/outdoor/?sku=ANT752Z
Probably due to monetary issues, RCA seems to "downsize" some of their antennas every time they "update" a model. Rabbit73 mentioned this earlier in this thread in post 16. The link above shows one less element and no Tetrapole. Is this the antenna you bought for your Dad?
http://forum.tvfool.com/showpost.php...8&postcount=16
However, the bottom line on any antenna is the reception it gives you at your location. Obviously you folks are happy with its performance, so congratulations and enjoy!