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Antenna to router connection

Sweet FA

Member
Hi, I've just bought a Huawei B311 4g router and a Poynting A-XPOL-0001 4g antenna for my narrowboat. The problem I have is that there are two 5m cables with SMA connectors coming from the antenna but only one port on the back of the router so do I need an adaptor or a new antenna with one cable or a new router with two ports? Thanks in advance. Andy.
 
Last edited:
You can just use a single cable of your current antenna.

I don't know if the B311 works in SISO mode when an external antenna is connected, or if it uses the external plus tries to use one of its internal antennas too, to try maintain MIMO - you'd have to do some speed/signal testing; in boat no antenna, outside boat no antenna, inside boat with antenna and outside boat with antenna and compare/contrast
 
The Antenna is probably worth more money than the Router if Im honest, the Router is a bit aged now and is only LTE Cat 4 spec.

My advice would be to upgrade the Router, its 2022, so try and get a LTE Router thats at least Cat 12 spec and has two external Antenna Ports.
 
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The Antenna is probably worth more money than the Router if Im honest, the Router is a bit aged now and is only LTE Cat 4 spec.

My advice would be to upgrade the Router, its 2022, so try and get a LTE Router thats at least Cat 12 spec and has two external Antenna Ports.
I'd advise not going more than the local mast can take, this can be tested with a smartphone and going near the mast during off peak.

Huawei B525 is usually sufficient for most scenarios and since 5G is rolling out, spending a lot on a decent 4G router is probably not worth it long term.
 
My B818 gets the same speeds as my B525 on Three, at 8 miles from the mast 4x4 mimo is not possible and the mast does not do 3CA so the B525 is just at its limit and the B818 's extra features are wasted.
 
I just found my b311 looks like it's a straight solder job for two sma ports and drill a hole for the new port in the case ordered some ports to test.
 

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Hi, I've just bought a Huawei B311 4g router and a Poynting A-XPOL-0001 4g antenna for my narrowboat. The problem I have is that there are two 5m cables with SMA connectors coming from the antenna but only one port on the back of the router so do I need an adaptor or a new antenna with one cable or a new router with two ports? Thanks in advance. Andy.
I will strongly suggest you reduce your antenna cable to the minimum posible. You will get a much better signal by placing the router closer to the antenna. Use this calculator to estimate the cable loss:

https://timesmicrowave.com/calculator/

Also keep in mind that most adapters/connectors have a 0.5dB insertion loss too so the less of them the better.
 
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