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I don't like the way the forks on the circuit board make contact with the wires either; I consider it a design weakness of an otherwise good antenna. Most users don't have a problem with that type of connection, but some (like Nascarken) connect a separate balun to each section of the antenna and use an external UVSJ to combine the sections or separate feedlines from each balun and an A/B switch. https://www.google.com/search?ei=IQW...10.K7IXGBq_dDQ Winegard has a video to troubleshoot the CB-8269. http://www.winegard.com/support scroll down to: How To Troubleshoot a Winegard Antenna Cartridge Housing You can buy a replacement CB-8269 housing. https://www.solidsignal.com/pview.asp?p=cb-8269 https://www.amazon.com/Winegard-CB-8.../dp/B003H2G5ZM http://www.winegarddirect.com/viewit...(CB8269)&post= https://i.imgur.com/mN07nXU.jpg https://i.imgur.com/WEqjATF.jpg https://i.imgur.com/9dU9hYm.jpg https://i.imgur.com/Z0i6Rem.jpg |
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Either way will work. There is very little loss in a short length of coax; a small fraction of a dB. Mechanical and weatherproofing considerations should determine which way to do it. Quote:
If you are saying that you connected the UHF and VHF sections of the antenna together with that wire, it's a bad idea that will ruin the performance of the antenna. The VHF section of the antenna will pick up UHF signals that will interfere with the UHF signals from the UHF section. You are defeating the purpose of the UVSJ (UHF/VHF Separator-Joiner) in the CB-8269. |
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You could get another 7698; you are familiar with its quirks. The Channel Master 3671 is discontinued, but there are a few left. In its day it was popular, but it is very wide because it covers VHF-Low channels 2-6. The current CM UHF/VHF-High equivalent to the 7698 is the Digital Advantage 100, CM-2020, but the specs list the gain less than the 7698. Another alternative would be separate UHF and VHF antennas, like the Antennas Direct 91XG for UHF and the Stellar Labs 30-2476 for VHF-High. Quote:
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https://www.newark.com/stellar-labs/...vhf/dp/71Y5462 http://www.farnell.com/datasheets/23...426.1504358738 https://www.satelliteguys.us/xen/thr...ntenna.373747/ Quote:
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https://www.antennasdirect.com/store..._combiner.html ADTech says they will have some more soon. The Radio Shack UVSJ is good, but it doesn't have a housing: https://www.radioshack.com/products/...itter-combiner Avoid the Stellar Labs 33-2230, it isn't as good; higher losses. Quote:
https://www.tonercable.com/pdf/antenna.pdf https://i.imgur.com/iUAzjxe.jpg https://i.imgur.com/J28IV3Y.jpg Quote:
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https://i.imgur.com/Quz0AdL.jpg Most people put the UHF on top because VHF signals can bend down a little better in rough terrain, but you can do it the way you want. |
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https://i.imgur.com/RoTfpom.jpg https://i.imgur.com/L21AJOs.jpg https://i.imgur.com/Yo1aFNF.jpg https://i.imgur.com/9AIJgp3.jpg https://i.imgur.com/6ArtK0x.jpg Quote:
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https://i.imgur.com/tOsB2Pd.jpg https://i.imgur.com/HbF40QQ.jpg |
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The main purpose of the red line is to show in an oblique "birds-eye" view where the signals from the SW cross the house across the street to help you with aiming. https://i.imgur.com/RortvGU.jpg I will try to show you the signal lines another way, but it will take me a while to figure it out. |
Here are the signal lines for KPNX and KPHO;
https://i.imgur.com/K582Uzp.jpg changing scale to zoom in on signal lines: https://i.imgur.com/9HjBgfY.jpg the two transmitters are very close together: https://i.imgur.com/nNsJ8Ld.jpg The above signal lines do not agree with the great difference you show between the green and black lines. https://i.imgur.com/Quz0AdL.jpg It is possible that the transmitted signal path can be scattered and changed by the rough terrain. https://i.imgur.com/fsvRisP.jpg so let the tuner decide what is the best aim for a signal. |
Yes the seller's LAB antennas for hi vhf!!are kik ass when installing with one feed line
But if you do decide to go with that and the HDB91,on one feed line Start with a spacing of about 31\2 ft 2, people one at the tv sets and one on the roof To adjust the WITH between the two antennas and I have found out that you use One hi vhf channel on a tv broadcasting tower's that are like about 50miles away And the same for the HDB91,find the uhf,channel that is the same distance away. And tune up the antennas by using your tv signal strength metter.and picture,for Best results good luck with your antenna set-up!!! |
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Good luck with your project. I hope that you will see an improvement in reception. Best regards, rabbit |
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Tilting the front end up sometimes helps if there is a hill in front of the antenna in the signal path close to your location. Tilting the front end down is used when the ground in front of the antenna slopes down away from you. The antenna is mounted close to the earth and the antenna picks up the signal reflected from the slope. Both the 30-2476 and the HDB91X have a tilt adjustment. |
Tilting the antenna fine tunel!!
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It will take too person and 2 cell phone one on the roof at the tilt feature Why the other person is looking at the pictures and the SIGNAL strength master for best results ??? |
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If the mast is grounded and the coax shield is grounded, that should be sufficient. https://i.imgur.com/STyUYvg.jpg https://i.imgur.com/NiKlkUV.jpg https://i.imgur.com/rMrOXZ3.jpg https://i.imgur.com/VcPK22L.jpg Good job, niv! |
Wonderful, Great News!!!!!
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https://i.imgur.com/J2MQMk2.jpg Thank you for the update and the photos. Looking good, niv! |
What a great looking setup NIV! It is interesting that your directions for UHF and VHF are different, but who can argue with results?
Hopefully you get long life out of those mast-mounted components. When I mounted my antennas up in a 50' tree-top, i chose to run separate downleads to the base of the tree where it do the combining and amplification, for easy replacement in case of failure. But it looks like your mast is relatively easy to lower and make adjustments to signal conditioning equipment if necessary. |
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