Removing DB4e reflector
How would removing the reflector change the gain? How would it look compared to the reception graph of the DB4e?
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Basically, removing the reflector decreases the gain somewhat and makes the antenna bi-directional. https://imageevent.com/holl_ands/mul...tienoreflector |
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Ouch what a huge hit below 530mhz. I don't think that would work for me. https://www.rabbitears.info/searchma...study_id=69426 I aimed at 331 TRUE and only have some issues with 26-1. |
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Do you get WMTW on RF channel 8 or RF channel 26?
Can you receive PBS on WENH (RF channel 11)? |
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Get the tech data sheet for the DB4e off the website, print out the horizontal polar pattern, draw a new curve 2-3 dB inside the existing curve (on the "hot" side), then mirror that to the other side. You'll be right in the ballpark as to what would be expected. |
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I do not get channel 11 or 10 PBS's. |
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Also what do you think would happen if only one reflector was removed? |
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https://www.rabbitears.info/searchma...study_id=69987 |
So currently if I aim directly or near directly to the Fox/CBS tower (they are on the same tower) I get all kids of errors and glitches. CBS is glitch free. The height I changed by about 2ft and it doesn't change anything.
I'm gonna try without a preamp and see if the signal are just too strong now. |
I took off the juice preamp and everything is coming in better now. Even PBS is watchable now but it does have a 12ish% error rate with the sun out so I'll see what happened tonight.
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