I found this interesting......from the HDTVprimer page
. Thanks holl_ands, and to Ken the HDTVprimer dude.
Beam widths (to the 3 dB points, for channel 30):
ClearStream 2 72º
Silver Sensor 64º
AntennasDirect ClearStream 2
This is an excellent antenna. It is roughly the same size and performance as the DB2. Since the DB2 is the reigning champion of indoor antennas, and since the “C2” is a tiny bit better, the C2 is the new champ. (The DB2 has more bandwidth, but with the new channel lineup this is no longer important. The DB2 would be stronger than the C2 if made a little bigger, but in relation to size the C2 would still win.)
AntennasDirect continues to think this is an outdoor antenna, and ships it without a stand. If you buy this antenna for indoor use, you will have to devise something to hold it up. If you are in a poor-signal area and are forced to use an indoor antenna, the C2, DB2, and 4220 are your best choices. The C2 is the only one of these without a poke problem around little children, so you should buy the C2.
This author continues to believe that a 4-bay is generally a better choice for an outdoor antenna.
The antenna elements are too small to have any response to VHF. And in case a really strong VHF signal sneaks in anyway, the UHF-only balun will filter it out.
Picture of the interior loops....
Gain comparison DB2 vs CS2...
Looks like the CS2 has better gain at lower UHF and a wider beamwidth than the DB2 across the spectrum. The CS2 may be a better solution for my roof. Hmmmm....
Great point about the poke-ability and little children for indoor use, making the CS2 a better option than the double bowtie DB2, but there is always the keep inside a cardboard or shipping box option.
See HDTVprimer page
for abysmal performance of CS2 on VHF Hi.