Originally Posted by DonM
The unit is the Winegard Roadstar. It is HD ready. A newer model I believe as I asked for the HD capable version.
Since antennas and amplifiers can't even tell whether the signal is analog or digital, they are all "HD ready". Since many digital stations are in the UHF band you do
want an antenna and an amp which cover that band (unlike the old "rabbit ears") as well as low-VHF and high-VHF, but the UHF TV band has been in use since I was a little kid (several decades ago), so you don't need anything "newer".
The omnidiectional antennas (which are only workable with an amplifier) such as the Winegard Roadstar series
that have recently become popular are certainly a convenience.