I want to mount a cell phone yagi antenna below this antenna on the same mast. How low below the HBU22 should I mount it to avoid interference?
1564449
Really, you will have to experiment with that. Normally, one or two feet would be sufficient for receiving signals. Since that antenna also transmits, it could interfere with your tv antenna. I would try to get 5 or 6 feet from the tv antenna if possible. If not, put it where you can, the cell power is very low and higher in frequency, so It should work fine.
7722
You could hook the Yagi antenna up to the output of the amplifier and IMO it would create a VERY strong signal. Keep in mind you could easily exceed the output limit set by the FCC so be careful, but in all reality it probably won't be an issue if you are not deliberately creating interference for others and other devices would have trouble picking it up let alone connecting to it unless they were in the main lobe of the RF radiation pattern and had the power to talk back if at a distant. I've used it successfully with panel antenna's to make some pretty impressive links.
1371801
You should ground it. There is a grounding kit available from the manufacturer, but you can do it yourself. Another option is moving the antenna down. Mine is only 7 feet off the ground and it works perfectly. You may not need to have it up so high. Also consider an inline coax surge protector.
536842
The antenna mounts facing down. As long as the antenna isnt too long it works fine.
1772404
All transmiting antennas need to be tuned. What tuned well on one vehicle may not be on another. There are too many variables involved. Chances are that it will be close, but if it isn't, you may damage your radio. If a ham did tell you that it didn't need to be tuned, then that goes to show how far the bar has been lowered for the exam.
28352
I have my antenna mounted on the A part of roof and it has metal trim and it is about 2ft. above roof. In all from ground up it is about 25Ft. The antenna works great! No interference the nearest tower is about 23 miles away. If it was an fm signal it would interfere. The metal roof can help pull digital signal in.
1852138
All good information except never tape the cable to the mast you need to run 4" stand offs, they are available anywhere that sells antenna equipment. Also keep the cable away from metal gutters etc..
376694
Good morning, It is NOT installed on the antenna but the mast supporting the antenna. My understanding after contacting CM Techs (1 877 746 7261) was to minimize the connector distance from the antenna connection to the mast mounted amplifier. Mine is installed 18" below the antenna on the mast.
2216140
I live in the country as well I have my antenna 15' high. Also have a booster that has an fm trap on it. It supposedly keep the radio signals from interfering. They are not expensive and made a big difference in my case anyway.
1076394
The answer is to always go up, the higher the better. A vertical antenna radiates in all directions so you don't want one of those directions (mobile home) to block the RF.
1037318
If I am following you correctly in what you are trying to accomplish, why not just take out the entire mast and rotation/attenuator hardware and replace the entire antenna system with the fixed Jack Antenna HDTV System, Model #OA8200. It has a built in amplifier and signal meter. Instead of cutting the mast and modifying it for fitment. It will be lower or as low as the the A/C Unit on the roof. Assuming you have one.
611906
5 inches clearance may be enough with antenna mounted as shown. If it is a metal gutter, it may interfere with the antenna's signals. In my application I had much less clearance and the antenna would have been very close to the metal lath of the stucco. I solved both problems by using an antenna extension cable. With the cable going straight upward, through a hole in a soffett, the vertical mounting clearance required is about 6 inches. With the antenna attached, it would be about 11 inches.
355154
The short answer is yes. We have installed two of these with the associated patch antennas without issue. If you chose to go the Yagi route, you would need to pay attention to cable and antenna connectors as well as impedance rating (50/75 ohm). I would suggest trying it with the included patch antenna, if you do not get the gain you require, then try the Yagi.
1946788
If you tune the transmitter to the same frequency that a local station is broadcasting on, then it could interfere. This is why you are suppose to find a frequency test isn't in use in you area. As to how much interference: that depends on the size and orientation of the antenna, and how much you tweak the power output by using the unofficial modification. Out of the box, the Crane unit I got would only broadcast a strong signal about 20 feet. Even with the pot turned up fully, I don't think the signal would go that far, maybe a 159-200 feet (assuming no interference from buildings or walls). So if you are in the suburbs or a rural area, the chances that you interfere with a neighbor's stereo are small. Note that some alternative devices are available that have greater power output. If you read the reviews on those, you see reports of people getting a signal up to half a mile away. Those are not FCC approved devices, which is why they have greater power output. The worst case scenario is that a neighbor complains to the FCC, they track you down and you get fined. Probably not likely to happen with the Crane. Might be more likely if you buy and crank up an overpowered transmitter from someone else. Then you are running a pirate radio station.
1088473
Get a better antenna. This one is kinda lame. If you have any sort of hill or building between you and the repeater, you wont get a good signal. I turned my Tram 1185 into a scanner antenna. It works better as a scanner antenna then it did as a mag-mount on my truck. Spend an extra twenty bucks on a 5/8ths wave antenna from a better brand. But to directly answer your question, I would imagine that you might be able to tune this antenna to 164-166. I doubt you could get a flat SWR on it though because I bet it would be too short.
142562
I really don't know if you would be able to mount that. I just mounted a small 4g lte yagi antenna on mine. The tower is well designed and easy to mount and extend. In my opinion it is well worth the cost.
1750571
I purchased it before I thought about the mast,then checked size and used a one inch poece of pipe/tubeing to mount the antenna on.Must be no larger than a one inch diameter mast.Standard antenna uses a 2inch mast,but anything like what we have is 0ne inch diameter.