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15-Jul-2012, 6:27 PM
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#1
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Junior Member
Join Date: Jul 2012
Posts: 5
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UHF and VHF from different directions
Here is my tvfool report.
http://www.tvfool.com/?option=com_wr...9900290bd2d0cd
I am rather confused on how to best receive the UHF from one direction and the VHF from another, combine them on one line and keep costs to a minimum. Im not too interested in the cw station that is also broadcast drom the south west.
Thanks for any help.
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15-Jul-2012, 7:01 PM
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#2
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Moderator
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
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Combining the output of a UHF antenna and a VHF antenna is quite simple. Use a UVSJ (UHF VHF Signal Joiner).
http://www.solidsignal.com/pview.asp...nna-%28UVSJ%29
http://www.amazon.com/Antennas-Direc...&keywords=UVSJ
Given the edge path conditions, I'd use an Antennacraft Y10713 aimed at WTNH, real CH-10. I'd use an Antennas Direct DB4e or 42XG aimed at the UHF signals to the north. If you mount on single mast, put the UHF on top and the VHF antenna at least 2' below, more is better. Generally, a 10' mast is needed to obtain ideal separation.
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
(Please direct account activation inquiries to 'admin')
Last edited by GroundUrMast; 15-Jul-2012 at 7:03 PM.
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15-Jul-2012, 7:45 PM
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#3
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Senior Member
Join Date: Mar 2012
Location: south-central PA.
Posts: 453
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DTV/cell phone reception advise and products
For many UHF and VHF channels from multipul directions use a Winegard HD7696P high VHF /UHF antenna and an Eagel Aspen rotor. Keep the mast short between the rotor and the antenna. The Eagel Aspen is easy to install. It works thru the antenna coax. No additional wire.
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15-Jul-2012, 9:38 PM
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#4
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Junior Member
Join Date: Jul 2012
Posts: 5
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I'd rather not use a rotor because I use a TiVo. Can I put them at opposite ends of the house instead of a on the same antenna? Or is that more costly?
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16-Jul-2012, 4:42 AM
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#5
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Moderator
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
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If you want to use a separate mast for each antenna, that's fine. Try to run the coax so that UHF signal does not need to run further than necessary. VHF signal experiences less loss than UHF through the same length of coax.
If you're driving a Tivo and one TV, no preamp is needed. If you're going to run more than two tuners, how many?
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
(Please direct account activation inquiries to 'admin')
Last edited by GroundUrMast; 16-Jul-2012 at 4:45 AM.
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16-Jul-2012, 10:57 AM
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#6
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Junior Member
Join Date: Jul 2012
Posts: 5
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I have a TIVO (2 tuners) and 2-3 other TV's. There is an amplifier in the basement where the cable came in, then each TV has a dedicated cable run.
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16-Jul-2012, 4:13 PM
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#7
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Junior Member
Join Date: Jul 2012
Posts: 5
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Is there much difference between the Antennas Direct DB4e and the AntennaCraft U4000? I can get the Antenna Craft at Radio shack along with the Y10713.
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16-Jul-2012, 6:18 PM
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#8
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Moderator
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
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Yes the DB4e has been optimized to cover real channels 14 through 51. As a result, it has better gain in that range. The U4000 was designed to cover real channels 14 through 69. The FCC has taken real channels 52 though 69 away from television service, selling the bandwidth to cell phone service carriers for the most part.
http://www.antennasdirect.com/cmss_f...y/DB4E-TDS.pdf
http://www.antennacraft.net/pdfs/U4000.pdf
But... in your case the few dB of improvement is not significant. You can use the U4000 if you like.
Simply connect the combined antenna signals to the existing distribution amplifier.
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
(Please direct account activation inquiries to 'admin')
Last edited by GroundUrMast; 17-Jul-2012 at 11:44 PM.
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17-Jul-2012, 11:39 PM
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#9
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Guest
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Tv Reception.
To receive the groups of Digital Tv stations/channels to the north north east and south west with 1 antenna install a Antennas Direct Clear Stream 2 Complete , http://www.antennasdirect.com/store/...VHF-Combo.html , aimed at about 200 degree magnetic compass.
Here is how to aim antennas , http://www.kyes.com/antenna/pointing/pointing.html.
Remove the reflector Screen and the CS2 Complete will receive the Tv stations/channels at the front of the antenna and the back of the antenna , to the north north east and south west.
Also install a Antennas Direct CPA-19 preamplifier.
Here are above the roof antenna mounts , http://www.ronard.com/909911.html , http://www.ronard.com/34424560.html , http://www.ronard.com/ychim.html , http://www.ronard.com.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box.
Here are places to buy antennas and etc. , http://www.solidsignal.com , http://www.antennadirect.com , http://www.amazon.com
Last edited by teleview; 18-Jul-2012 at 12:17 AM.
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17-Jul-2012, 11:51 PM
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#10
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Guest
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Tv Reception.
NO antenna rotator is required.
The CS2 Complete is designed the Tv channels , VHF high band channels 7 thru 13 and UHF band channels 14 thru 51.
Your location has receivable Tv channels in the , VHF high band 7 thru 13 and UHF band 14 thru 51.
The CS2 Complete with the reflector Screen removed will receive in both directions at the same time.
So only one coax from the antenna.
The Tv's Must channel scan for the Broadcast Tv Channels sometimes named the "Air Channels' or 'Antenna Channels' in the Tv setup menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
DO NOT scan for cable tv channels.
Last edited by teleview; 17-Jul-2012 at 11:55 PM.
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18-Jul-2012, 12:17 AM
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#11
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Guest
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Tv Reception.
Try aiming the antenna at about 170 degree aim direction is a in between aim direction , between the south west group of Tv stations and WHPX-TV UHF channel 26 ION Television.
WHPX is weak signal strength and may not be received with the antenna aimed at about 170 degree magnetic compass.
If not , then aim the antenna at about 200 degree magnetic compass.
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18-Jul-2012, 12:38 AM
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#12
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Guest
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Tv Reception.
If the antenna is aimed at WHPX at 122 degree magnetic compass , WHPX will be received and the north north east group will be received , however that will put the south west group on the side of the antenna and most of the south group will not be received.
WHPX is the Odd one out because of the location.
If the 170 aim direction does not get the north north east group and south west group and WHPX.
Then I recommend aim the antenna at 200 degree magnetic compass.
And if you will like to receive WHPX ION then install a separate antenna , a Winegard HD9095P antenna aimed at 122 degree magnetic compass.
The coax of the HD9095P antenna is separate and will not be connected to the coax of the CS2 Complete or any part of the CS2 Complete antenna system.
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18-Jul-2012, 1:46 AM
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#13
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Moderator
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
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Quote:
Originally Posted by teleview
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Also install a Antennas Direct CPA-19 preamplifier.
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The OP already has a DA. Are you suggesting they discard it or use two amplifiers in tandem?
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
(Please direct account activation inquiries to 'admin')
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18-Jul-2012, 2:19 AM
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#14
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Guest
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Tv Reception.
For reception with the CS2 Complete , no mater if ION is received or not , use only the CPA-19 preamp.
For 1 Tv connection use no splitter.
For 2 Tv connections use a , http://www.hollandelectronics.com , also avaliable at http://www.solidsignal.com.
HFS-2D , 2 way splitter.
HFS-3D , 3 way splitter for 3 Tv's connected.
If it comes to using the HD9095P antenna to receive WHPX ION at 122 degree magnetic compass.
The HD9095P antenna will be be a separate antenna system and will not be connected to the CS2 Complete antenna system.
Reception of WHPX ION with the HD9095P antenna should not require a amplifier for reception on . 1 , 2 or 3 TV's.
For 1 Tv connected use no splitter.
HFS-2D for 2 Tv's connected.
HFS-3D for 3 Tv's connected.
The CS2 Complete antenna system and the HD9095P antenna system are 2 separate antenna systems that are not connected to geather on to one coax system.
The 2 separate antenna systems coaxes will go to each Tv location and a Remote Control A/B antenna switch at each location will change antennas.
http://www.radioshack.com , # 15-1968 , or , http://mcmelectronics.com, # 32-4425.
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18-Jul-2012, 2:51 AM
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#15
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Moderator
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
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Quote:
Originally Posted by teleview
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The CS2 Complete with the reflector Screen removed will receive in both directions at the same time.
So only one coax from the antenna.
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True, but the UHF gain peaks at 10.2 dBi (about 8 dBd) with the reflector in place. Removing the reflector is going to reduce the forward gain by more than 3 dB, possibly as much as 6 dB due to the interaction of the reflector and tuned elements.
It seems at first glance, you've got very little gain left. With so many weak signals present, this seems like a marginal design.
A search on the specific Tivo model is in order. Some are rather finicky about signal quality.
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
(Please direct account activation inquiries to 'admin')
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18-Jul-2012, 2:57 AM
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#16
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Guest
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Tv Reception.
WTNH-DT Real channel 10 was referred to at the beginning of this question askers post.
WTNH-DT Real VHF channel 10 ABC is a Strong Signal at 47.2 NM(dB) and will be easley received buy the VHF reception part of the CS2 Complete UHF/VHF antenna.
Last edited by teleview; 18-Jul-2012 at 4:21 AM.
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18-Jul-2012, 4:12 AM
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#17
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Guest
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Tv Reception.
GUM says.
True , but .
So many weak signals.
teleview says.
Well lets see.
WTNH 47.2 NM (dB) , ABC
WCCT 35.5 NM (dB) , CW
WTIC 35.3 NM (dB) , FOX
WEDY 34.8 NM (dB) , PBS
WFSB 34.4 NM (dB) , CBS
WVIT 31.1 NM (dB) , NBC
WCTX 33.0 NM (dB) , MYNetwork
WEDH 31.9 NM (dB) , PBS
WUVN 25.6 NM (dB) , Univision
The above are all strong signal strength. Plenty of signal strength elbow room for reception.
And now weaker signal strength.
WFTY 12.6 NM (dB) Telefutura
WWLP 10.4 NM (dB) NBC
And Now the Weak signal strength.
WHPX 8.1 NM (dB)
It is true that , WFTY , WWLP , WHPX are weaker and weak.
Even if the CS2 Complete has 0 gain with the reflector screen removed.
That still leaves signal strengths of , 12.6 NM (dB) , 10.4 NM (dB) and 8.1 NM (dB) , and a preamp gain of 17 to push the signals out to the Tv's.
And if the CS2 Complete has a gain of 5 with the reflector screen removed then thats ,
WFTY 17.6 NM (dB)
WWLP 15.4 NM (dB)
WHXP 13.1 NM (dB)
plus the 17 dB preamp to push the signals out to the Tv's.
If all this comes down to,
WHPX ION as the problem Tv station then I have dealt with that issue.
I stand by my recommendation for reception.
Last edited by teleview; 18-Jul-2012 at 2:24 PM.
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18-Jul-2012, 4:56 AM
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#18
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Moderator
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
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Please accept my apology for being overly skeptical.
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18-Jul-2012, 12:22 PM
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#19
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Junior Member
Join Date: Jul 2012
Posts: 5
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Thanks so much for the input. I'll post back later on the final details.
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