Thread: Rca ant751
View Single Post
Old 12-Apr-2017, 2:53 AM   #4
Retired A/V Tech
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,544
One secret is that the UHF driven element is a tetrapole, in the original version of the 751.

RCA likes to change the design in mid stream without changing the model number, usually to meet a price point with the loss of some performance.

Another secret is that the VHF section is an LPDA.

Another secret is that it is an original Winegard design.

And with so few elements on the ANT751, it really is quite a good performer across the TV frequencies.
A lot of good reports from users in strong signal areas.

Any idea what that gap is for?
Ask holl_ands. He does computer modeling of antennas. You can find him here:
or here:
Attached Images
File Type: jpg RCA ANT751CES2009bL_1.jpg (89.2 KB, 7013 views)
File Type: jpg Winegard UHF Tetrapole2.jpg (121.3 KB, 6485 views)
File Type: jpg Stub Illustration2.jpg (110.8 KB, 6383 views)
File Type: jpg 0.75 wave folded dipole.JPG (53.8 KB, 11957 views)
If you can not measure it, you can not improve it.
Lord Kelvin, 1883

Last edited by rabbit73; 13-Apr-2017 at 2:40 AM.
rabbit73 is offline   Reply With Quote