In the picture the middle antenna is a Verizon 700mhz band 13 for a signal booster that I purchased. The other two are ones I happened to have in junk pile. The one on the right location is identical with the same loop it's just bigger. The gold one doesn't have the loop. Will all these antennas work for my booster? Are the bigger ones more powerful than the middle one and will they work for the 700mhz band 13 as well? Thanks for any info, I'm just looking to put it the best device in the air one time and be done with it. Thanks again
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Need help in identifying antennas
- Thread starter mkswmp
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doctordialtone
Member
What picture?
Well that's a good question because I can't seem to load a picture on this group. I hit add a file and it takes me to my file manager and I select a photo but it never loads back up on this page
doctordialtone
Member
New photo by mike harrington
That's what I've been trying to do . It never loads the image. In using an Android phone
Might be a rule set for new users. You may have to have x amount of posts before you can upload pics.
Well if that's the case what's the point of even joining? I came here to ask for help from people who are vastly more knowledgeable about this subject but I can't even post a picture to explain my problem? That's kinda of redundant in my opinion!!
tvengr
Well Known Member
Yagi directional antennas. Hard to tell what frequency without a size reference to determine the element lengths.
mmckenna
I ♥ Ø
It's to stop people from joining to just post ads and the like Common on many forums.
As for the antennas, taking some measurements of the elements would help us out a whole lot. Without some reference to size, we'd just be guessing.
As for guessing, my guess would be 800MHz or so.
slicerwizard
Member
There's more to this world than you and your wants. Go figure...
I'm sure I'm not the only person who has been frustrated over this rule...if it's a rule. Some people would just like to be able to access info from people with more knowledgeable about a subject without spending 8hours on the internet making comments or replies on a site just in order to post a picture. Not everyone has 8 hours to spend online....but go figure.
Simmer down.
Despite all the conjecture, it's not a rule.
Despite all the conjecture, it's not a rule.
I'm sure I'm not the only person who has been frustrated over this rule...if it's a rule. Some people would just like to be able to access info from people with more knowledgeable about a subject without spending 8hours on the internet making comments or replies on a site just in order to post a picture. Not everyone has 8 hours to spend online....but go figure hi
Then please explain how I can post a picture using Android phone. Since you're
Ok here's the measurements...the one that I know is 700mhz band 13 is about 12" long, it has four elements with one of them being a loop that the coax cable ties into. The first element is the longest at 6-3/4", the second one is the loop the third and fourth ones are 5 ". The first one and the loop are 3" apart and the rest are 2-1/2" apart.
The next mystery antenna is 3' long with 9 elements. The first element is again 6-3/4" long then the next one is the loop where the coax cable ties into. The remaining 7 elements are 5-1/2 inches long. The distance between the first element and the loop is 1-1/2 and then to the next element is also 1-1/2. Between 3 and 4 is also 3 ". 4 and 5 is 4", 5 and 6 is 4-1/2", 6 and 7 is 5 ", 7 and 8 is 5", 8 and 9 is 4". Both of those antennas are hollow thru the middle. The third one is really an odd ball. It's gold colored and is 32" long. It has 7 elements and does not have a loop where the coax cable ties into. The coax cable ties into the end of the main tube of the antenna. The first element is 7-1/2" long and the next one is 7 " long.... but it has aluminum rod on one side and the other side has a plastic rod about twice the diameter as the aluminum. It also has a small hole in the end. The next element is 5-3/4" long, the next one is 5-1/4" long, the next one is 5" long, and the last 2 elements are 4-1/2 " long. The distance between the first two elements is 4", then 3", then 4", then 3", then the last ones have 4" between them. At the end of this one in the main tube is a plastic cone with a small hole in it as well. I hope this is all the info needed.
mmckenna
I ♥ Ø
Both sound like 800MHz, not 700. Likely tuned to the cellular bands.
That sounds like 700MHz.
Just different ways of matching the coax to the driven element.
mmckenna
I ♥ Ø
It's possible.
My interpretations of the measurements are a bit rough. The right way to do this is to put each antenna on an antenna analyzer to see where it resonates.
Most of these antennas will probably work fine for 700 and 800MHz. There's not a huge difference and most of the cellular gear is designed to work into imperfect antennas.
I'd say he's right, I just built a yagi for 800 and that reflector element is very close to what I tuned my antenna for.
Who would have an analyzer?
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