The ,
www.channelmasterstore.com , web site for the CM4228HD , Technical Specifications , shows that the average gain is 5 dB for VHF high band channels 7 thru 13.
And 12 dB average gain for UHF channels 14 thru 51.
This is plenty of antenna gain for reception location.
The CM4228HD antenna is designed to receive the UHF channels 14 thru 51 and VHF high band channels 7 thru 13.
Your location has strong signal strength receivable Tv channels in the UHF and VHF high band.
This independent review was done to discover the truth about the CM4228HD and other antennas.
The simple truthful statement at the end of technical part , Is what is important to know.
The CM4228HD antenna is designed to receive the VHF high band of channels 7 thru 13 and does a good job of receiving the VHF high band channels.
http://www.antennahacks.com/Comparis...F_Shootout.htm