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Old 01-05-2019, 03:43 PM   #1
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Signal Booster- TV from roof Antenna

Georgetown 351DS - This issue may have been discussed in another forum. I recently replaced my roof mount antenna with Winegard Rayzar Z1 Local HD & Digital Broadcast TV Antenna. Before mounting and sealing I did check of the coax that runs to the signal booster inside passenger overhead cab. I then mounted and connected the antenna on top and susequently connected the other end to the booster. The booster (new) works, green light power light comes on, however as soon as I connect the coax from the antenna, the light goes out. Any ideas? Your help appreciated!
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Old 01-05-2019, 08:41 PM   #2
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The booster panel supplies the 12 volts to the booster (amplifier) located within the antenna. Didn't your previous antenna include a booster panel and if so why did you change it? Have you tried your old antenna re-connected to the antenna coax? Your new antenna could have a bad amplifier. If there was an existing booster panel have you tried reinstalling it?
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Old 01-07-2019, 09:30 AM   #3
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Quote:
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The booster panel supplies the 12 volts to the booster (amplifier) located within the antenna. Didn't your previous antenna include a booster panel and if so why did you change it? Have you tried your old antenna re-connected to the antenna coax? Your new antenna could have a bad amplifier. If there was an existing booster panel have you tried reinstalling it?

Thank you for your reply, Yes, I thought understood how the booster panel works as far as boosting signal to the TV's. What I don't understand is why the light on the panel goes out as soon as I connect the booster. The panel worked with old antenna, light stayed on. Can't connect the old antenna as it was destroyed and the reason for the replacement. I tried both the existing as well as the new booster panel included with the antenna and both react same way. Would this be an indicator of a bad amplifier on the antenna? How would I be able to check? Thanks for your help
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Old 01-07-2019, 09:44 AM   #4
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Little confused by this comment: I then mounted and connected the antenna on top and susequently connected the other end to the booster. The booster (new) works, green light power light comes on, however as soon as I connect the coax from the antenna, the light goes out.
You are saying you have connected the antenna to the power supply via coax and the light is on. Then saying that when you connect coax from antenna the light goes out? Which connection are you making when you say the light goes out. Is it from the booster /splitter box to the TV.
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Old 01-07-2019, 09:46 AM   #5
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Because the booster power fuse is not blowing I would think the coax cabling is not shorted and suspect an antenna malfunction. This is predicated on everything working before new antenna. There is only a few screws securing the top of the antenna and you could remove it to check the internal interconnect (may or may not help) but I think that your antenna would be replaced due to being bad from supplier.
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Old 01-07-2019, 09:55 AM   #6
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RF Amplifier

The booster is actually an RF Amplifier. I am a cable guy


I agree, check for short



Check the coax cable ends to make sure that there is NOT a short. Sometimes a braid strand can get wrapped around the center conductor...


Additionally, if you have a multimeter you can check the impedance/resistance.



The cable unconnected should read 0 ohms.. The cable connected into the Amp should read 75 ohms..
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Old 01-07-2019, 10:02 AM   #7
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Quote:
Originally Posted by ghhardin View Post
The booster is actually an RF Amplifier. I am a cable guy


I agree, check for short



Check the coax cable ends to make sure that there is NOT a short. Sometimes a braid strand can get wrapped around the center conductor...


Additionally, if you have a multimeter you can check the impedance/resistance.



The cable unconnected should read 0 ohms.. The cable connected into the Amp should read 75 ohms..
That would mean a dead short to ground for the 12 volts and seems that would blow the power fuse.
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Old 01-07-2019, 10:31 AM   #8
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Quote:
Originally Posted by Flybob View Post
Little confused by this comment: I then mounted and connected the antenna on top and susequently connected the other end to the booster. The booster (new) works, green light power light comes on, however as soon as I connect the coax from the antenna, the light goes out.
You are saying you have connected the antenna to the power supply via coax and the light is on. Then saying that when you connect coax from antenna the light goes out? Which connection are you making when you say the light goes out. Is it from the booster /splitter box to the TV.
Prior to connecting coax to antenna and mounting & sealing new antenna to roof, I checked integrity of the coax which was good. re-connected coax to the booster panel and light will not come on. If I remove the antenna coax from the panel, light will power up.
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Old 01-07-2019, 10:34 AM   #9
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Quote:
Originally Posted by bubbles View Post
Because the booster power fuse is not blowing I would think the coax cabling is not shorted and suspect an antenna malfunction. This is predicated on everything working before new antenna. There is only a few screws securing the top of the antenna and you could remove it to check the internal interconnect (may or may not help) but I think that your antenna would be replaced due to being bad from supplier.
Thanks, I was trying to diagnose without having to remove the antenna along with sealant etc. Looks like don't have much choice. Don't see a way to check antenna internal without doing this. Thanks for your help!
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Old 01-07-2019, 10:36 AM   #10
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Quote:
Originally Posted by bubbles View Post
That would mean a dead short to ground for the 12 volts and seems that would blow the power fuse.
Light goes out when I connect coax, but does not blow fuse to panel. That is what is confusing.
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