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Antennas Direct DB8 vs. New DB8e

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Old 02-02-2013, 09:09 AM   #1
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Default Antennas Direct DB8 vs. New DB8e

Now that the "new" DB8e is about to be available with a supposedly wider angle of reception, I'm wondering how this would compare with two "old" DB8's facing back to back (180 degrees apart). Forgive my ignorance, as I'm sure there are probably phasing issues with the two antenna set-up.

http://www.antennasdirect.com/store/...r-Antenna.html

Last edited by RobSC; 02-02-2013 at 09:10 AM. Reason: Added link
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Old 02-02-2013, 02:50 PM   #2
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You won't have any phasing problems, if you have a separate coax run for each one and use an A/B switch, inside.
You also won't have any loss, from part of the signal being fed to the opposite antenna, or splitter insertion loss.
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Old 02-03-2013, 11:17 AM   #3
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Thanks stereocraig!
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Old 02-03-2013, 11:38 AM   #4
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The new DB8e is an interesting concept and I plan on following discussions at various OTA forums. In my town, we have towers in two locations with a 70 degree spread between them. The DB8e at first glance would seem to be a good bet, setting it up with the elements thirty degrees off broadside. The loss with off axis aiming is about 5 to 8 dB. Unfortunately, based on my testing, it is not an improvement over simply splitting the difference with a 4 bay antenna which results in a 5 dB loss. Thus, for people in my town, it is cheaper to build your own M4 or buy a commercial 4 bay than buy the new DB8e...

Last edited by IDRick; 02-03-2013 at 11:50 AM.
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