Ok I decided to see what an external antenna would do and wow.
I got the kit from Waveform as it’s an ok price and reputable money back company.
So I have an n41 tower 3 miles to the SW, a B66 .5 miles to the W, and a n71 2 miles to the NW.
If I put the can in the NW window it get the B66 ok and never holds the n71 for long. If I put the can in the S window it just does not hold the n41 or the B66.
So I have been living with the can in the NW window with the B66 and 75/25 average and solid for days on end slow and steady.
I wanted the n41 tower as my test show it rock on my phone so I figured let’s see if an ext ant can do anything.
So remember can in S window cannot get the B66 to the W and also n41 is to weak. Open up can, remove 3 and 4, snap on new leads, put can back together, hook up ext ant that is just outside window aimed right at the n41 tower. Time to rock great signal and 650/110 speeds.
So not that bars matter but in the NW window B66 was 3 bars almost -100dBm with SNR of 10db so ok but not great. Now in the S window where I had nothing really of used mounting the ant just outside I have that B66 at -76dBm but SNR is 7db 4 bars speed is good. Also that n41 comes in at 4 bars and wow -81dBm with an SNR of 7db so ok. So huge improvement in signal strength and overall quality slight degradation in SNR but bigger ant picks up more of what you don't want too.
They say you will get 9db improvement I have more so I am happy. I mean the b66 improved over 24db and I am not even pointing the ant at that tower. Also if I could get the n41 it was -107db now wow that is at -81db so again same massive gain in power.
The cable they give you is huge 30ft and as thick as your pinky. If this works out for several days I think I need to order a shorter cable as this is to much in my case I need like 3-5 ft max. As you see for testing I have the cable run thru the window with duct tape holding the gap. Again I don't want to go drilling holes until I decide this is good for several days and I am keeping this setup. Plus maybe since my run is so short I can go with a thinner cable and way shorter.
Again only time will tell if this setup hold for several days solid but initial results are looking good.