I have a grounded HH 9900 mounted on a TRAM 1465 and tripod on the garage roof. Why can't I tune the antenna for 10m, 6m, 2m, and 70cm?
1026243
I don't know the answer to your problem, however I purchased the same antenna, and as far as I can tell it's like a dead short on every band which leads me to believe the coils are no good. I have tried adjusting it I have tried grounding it, nothing has worked, the SWR is off the charts and by the time I tried to use this antenna it had sat for over a month due to the severe winter weather and I could not get outside to mount it. Mine is useless.. I have checked the coax, etc, and I have a triband Comet 2m,440, 6 meter antenna that works and has a 1:2:1 almost everywhere on the bands I use it on.... So I know my setup is fine but that antenna is junk in my opinion...
235904
I am assuming that you are referring to the TYT 9800 Quad Band Radio. It will operate off of a 13.8 Volt, 12 Amp continuous regulated power supply. Radio Shack has one the is 13.8V 19 Amp which works very well with the unit. The HH-9900 Antenna can be used as a base antenna as long as you have a good ground plane, one guy said he used a large pizza pan. I am using a Radio Shack Discone Antenna 25 - 1,300 MHz with excellent results. The SWRs are nearly flat on the 2 Meter and 70cm Bands.
1546569
Ideally you don't want the antenna right next to other metal things. But you can't always get ideal. I can't imagine that being next to a TV antenna would make a huge difference. The only way to know for sure is to try it and find out. Setup the antenna and check the SWR. The other question is where the TV antenna would sit in relation to the A99. If most of the A99 is above the TV antenna then you should be fine. You should check on CB and ham radio website and see how other people have their A99 mounted. I am sure there are other people who have their antenna mounted near a TV antenna. The only other issue you might have to deal with is interference with the TV. If you are running low power you should be fine.
1182274
Roof or gutter mount is required for 6 and 10m to work well. You need a ground for them to operate correctly. I have used this on a mag mount and it works fine for the 2m and 70cm bands.
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.
956683
putting it in the attic may work better then on the roof. It worked the best for me in the basement of my house but a small adjustment would drop certain stations. On the roof it was just a nightmare. I think the built in amp was too much gain. most the towers were right around 30 miles and I just had a heck of time with this thing. I would turn the antenna pick up one station and drop another. I ended up just using a HBU-35 with no pre-amp under my deck and get all stations with a good signal. All I can say is give it a try.
1841821
I have run it on my 220 yagi on the fixed station, works fantastic. Now I have it on my Toyota Tacoma truck, using a 1/4 wave magnetic whip in the center of the roof and it does a fantastic job. The reason I am using a 1/4 wave is that I can go in/out the garage door and not have to raise or lower the antenna. Using a B-10 for 2/440 mag mount and it works well also. hope this helps you. 73's Bob NF4C
2058340
As with any Antenna.... It is a matter of Antenna Height above the ground versus trhe number of signals in the surrounding area... Mounted on top of my Travel Trailer I received excellent reception of stations 75-100 miles away, by using the amplifier that came with this unit... Hope that helps you.....
1663094
To get effective gain, it needs to have a ground plane to mount on. That a large sheet of metal. If your in a moble home and it has a metal roof, that would work. If its FM and the stations are in the same direction, I look at some house FM Antenna. For AM see what the amature radio info, it might be a long wire strung and how to put an lighting arrestor.Hope that helps
1832718
I mounted mine in the attic of a 2 story house and I don't have this issue. I know it does not work when I swap the amplifier with the mohu leaf one. Try mount higher or point the antenna to the TV station.
250572
It is excellent antenna if you mount on the roof top of vehicle and it is hard to tune on the trunk lid. Need a lot of patience to tune the antenna.
86799
I just seen a YouTube video of the two antennas you mentioned and it does not look like it would fit the female end of the tram triple magnet mount.
941710
I used the tripod the old antenna was on. You can get one at RadioShack or on line.
792509
I have my repeater installed on a metal shop. What I did was place my antenna on a mast about six feet above the roof I have had no problems.
1936640
If you have a tunable tip antenna go to FireStik.com and check out the TechDocs section. There are illustrations on correct continuity, as well as info on proper grounding and SWR testing. I was able to achieve 1.0 - 1.2 SWR on all channels on my Jeep with only half of the antenna above roofline. I originally had issues my setup due to incorrect grounding, and my SWR was in the red line as well. After fixing the ground I have near perfect SWR. The readings you're experiencing are more likely due to a short, bad ground, or coax issue before an issue with this radio/mobile transceiver. Also maybe try a "no ground plane" antenna if you don't want to deal with grounding. If you have a tunable tip antenna go to FireStik.com and check out the TechDocs section. There are illustrations on correct continuity, as well as info on proper grounding and SWR testing. I was able to achieve 1.0 - 1.2 SWR on all channels on my Jeep with only half of the antenna above roofline. I originally had issues my setup due to incorrect grounding, and my SWR was in the red line as well. After fixing the ground I have near perfect SWR. The readings you're experiencing are more likely due to a short, bad ground, or coax issue before an issue with this radio/mobile transceiver. Also... » Read More If you have a tunable tip antenna go to FireStik.com and check out the TechDocs section. There are illustrations on correct continuity, as well as info on proper grounding and SWR testing. I was able to achieve 1.0 - 1.2 SWR on all channels on my Jeep with only half of the antenna above roofline. I originally had issues my setup due to incorrect grounding, and my SWR was in the red line as well. After fixing the ground I have near perfect SWR. The readings you're experiencing are more likely due to a short, bad ground, or coax issue before an issue with this radio/mobile transceiver. Also maybe try a "no ground plane" antenna if you don't want to deal with grounding. « Show Less
1495501
Your standard mag mount antenna will connect directly to this radio it comes equipped with the po239 hookup wich is the female side of the pl259 connector I have this radio installed in my trailblazer and used the tram mobile mount dual band that is here on amazon for $16 that antenna only has a 12 foot cable so you may need an extension depending on your radio to antenna location distance it worked fine in our car ran through the door trim but is pulled tight in my SUV
2243480
I use one for FM USB 10-15 meters with an external auto tuner (LDG 100ProII) and have talked round the world. Limited results on 17 meters below that you are out of luck. If you need something simple for 10-20 meter antenna take a look at the Hy-Gain 12AVQ if you want to work even lower bands than 20 check out the Hustler BTV series of antennas. www.eham.com is a great shopping tool for reviews because they are not a retail sales site. You would need to look at HF Verticals and Wire category.