New commercial antennas focused on the 14-51 range? - Canadian TV, Computing and Home Theatre Forums

alebowgm · 2011-08-22, 04:45 PM

Just a thought. Now that UHF 52+ are going to be cut off, is there a 'new design' of some sort that instead focuses on the 14-51 range...

300ohm · 2011-08-22, 05:08 PM

Heh, pretty much ALL of the antenna designs on this forum since 2008 have been focused on the 7 - 13 vhf-hi and 14-51 uhf range.

alebowgm · 2011-08-22, 05:09 PM

Sorry, let me rephrase, all the ones that you can buy in mass, lol...

ScaryBob · 2011-08-22, 05:23 PM

OTA Antenna Chart/Tableau des Meilleures Antennes OTA

ota_canuck · 2011-08-22, 05:23 PM

AD makes the claim to that new 14-51 issue, but these antennas all appear to be the same as their older 14-69 antenna designs.

Marketing, marketing, marketing. I don't know if you can really trust any of the antenna manufacturer claims.

I believe there are AD members on this DHC forum that may be able to explain!

Quote:

The first all new HDTV antennas optimized for the post 2009 digital frequencies. Designed for reception on high VHF (Ch 7-13) and core UHF (Ch 14-51).
http://www.antennasdirect.com/store/...-antennas.html

I may be bending the posting rules slightly, but this is an important factor in selecting any consumer antenna products based on the advertised manufacturer's specifications.

holl_ands · 2011-08-22, 06:47 PM

If you look at the A-D sellsheets for the C1/C2/C4 antennas & specs for Micron-2, you'll
see that they are indeed "optimized" for the New UHF Band (470-698 MHz), with Gain
falling off (slightly) and the SWR climbing across the higher Old Band frequencies....unlike
some Full Band antennas that peak within the Old Band...
This is a small detriment on all except the higher Gain C4, which has a big SWR increase.
It just happens these new A-D antennas (except C4), ALSO perform quite well in the Old Band:
http://www.antennasdirect.com/cmss_f...-sellsheet.pdf
http://www.antennasdirect.com/micron-2-gain.html

ADTech · 2011-08-22, 07:37 PM

Since you asked:

The ClearStream line of our antennas are designed and optimized for the "new" bands as follows:

The ClearStream Micron, C1/C, C2, and C4 designs were all optimized for UHF 14-51.

The C5 was optimized for VHF 7-13. It's actually a derivative the C1, essentially rescaled for the lower frequency range.

Our new 2- and 4-bay UHF antennas should be available in November (or so). Production has finally been scheduled after several delays.

Sorry, didn't mean to be a commercial. Just wanted to answer questions.

2011-08-22, 04:45 PM	#1
alebowgm Veteran Join Date: Dec 2004 Posts: 3,962	New commercial antennas focused on the 14-51 range? Just a thought. Now that UHF 52+ are going to be cut off, is there a 'new design' of some sort that instead focuses on the 14-51 range... __________________ Windsor:CM4228+4220HD to 1.Samsung LNT3242H+2.AccessHD DTA1080D [RCA DTA800+CM7775+DTB-H260F in storage] GTA:LN40B750

2011-08-22, 05:08 PM	#2
300ohm Veteran Join Date: Mar 2008 Location: Somewhere in Delaware on the flat side Posts: 7,039	Heh, pretty much ALL of the antenna designs on this forum since 2008 have been focused on the 7 - 13 vhf-hi and 14-51 uhf range. __________________ My builds/plans (not the latest models) are located here.

2011-08-22, 05:09 PM	#3
alebowgm Veteran Join Date: Dec 2004 Posts: 3,962	Sorry, let me rephrase, all the ones that you can buy in mass, lol... __________________ Windsor:CM4228+4220HD to 1.Samsung LNT3242H+2.AccessHD DTA1080D [RCA DTA800+CM7775+DTB-H260F in storage] GTA:LN40B750

2011-08-22, 05:23 PM	#4
ScaryBob Veteran Join Date: Feb 2009 Location: The Dandelion City Posts: 7,133	OTA Antenna Chart/Tableau des Meilleures Antennes OTA __________________ At 20 I had a good mind. At 40 I had money. At 60 I've lost my mind and my money. Oh, to be 20 again. --Scary

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2011-08-22, 06:47 PM	#6
holl_ands Veteran Join Date: Nov 2008 Location: San Diego, CA Posts: 1,644	If you look at the A-D sellsheets for the C1/C2/C4 antennas & specs for Micron-2, you'll see that they are indeed "optimized" for the New UHF Band (470-698 MHz), with Gain falling off (slightly) and the SWR climbing across the higher Old Band frequencies....unlike some Full Band antennas that peak within the Old Band... This is a small detriment on all except the higher Gain C4, which has a big SWR increase. It just happens these new A-D antennas (except C4), ALSO perform quite well in the Old Band: http://www.antennasdirect.com/cmss_f...-sellsheet.pdf http://www.antennasdirect.com/micron-2-gain.html

2011-08-22, 07:37 PM	#7
ADTech Join Date: Oct 2010 Location: Antennas Direct Tech Support - St Louis Posts: 219	Since you asked: The ClearStream line of our antennas are designed and optimized for the "new" bands as follows: The ClearStream Micron, C1/C, C2, and C4 designs were all optimized for UHF 14-51. The C5 was optimized for VHF 7-13. It's actually a derivative the C1, essentially rescaled for the lower frequency range. Our new 2- and 4-bay UHF antennas should be available in November (or so). Production has finally been scheduled after several delays. Sorry, didn't mean to be a commercial. Just wanted to answer questions.