In reply to a post by keith969:

The Poynting one. Bought on Amazon and would have returned if it made little difference - but it did.

Nice, might do the same, did you get the omni or directional one?

The directional one - there's only one mast near me, and pretty much line of sight.

Realistically, how much difference will that 5m of coax make to the stability or latency if at all? I'm only asking because I currently have an external antenna connected to my router with 5m of cable and wondered if I could improve my pings by running an SXT with PoE outside instead? It seems doubtful that 5m would make a difference surely not?

In reply to a post by _Belial:

Realistically, how much difference will that 5m of coax make to the stability or latency if at all? I'm only asking because I currently have an external antenna connected to my router with 5m of cable and wondered if I could improve my pings by running an SXT with PoE outside instead? It seems doubtful that 5m would make a difference surely not?

If you know the cable type most manufactures publish cable loses online.

The Antenna was installed by EE, there's no labeling at all on the cable for me to check against

In reply to a post by _Belial:

The Antenna was installed by EE, there's no labeling at all on the cable for me to check against

Thats not helpful, their are so many different types of cable, some with a copper core and some with an aluminum core so the loses of the cable can be significantly different

In reply to a post by _Belial:

Realistically, how much difference will that 5m of coax make to the stability or latency if at all?

I agree the mathematical losses may be low (15ft of RG58 @ 900MHz has a loss of around 2.2 dB) compared to the gain of the antenna (typically 10dbi+ from a yagi)

But practically we found it problematic, moving to Outdoor IADs (like the Mikrotik SXT) has been fantastic for us, running network cable is so much easier and more reliable

Edited by john_32 (Mon 17-Feb-20 11:24:55)

It will make a near zero difference to latency (about 20 nano seconds - the additional propagation time of the signal in coax cable). The cable itself is probably low loss, but if the terminations are badly done or damaged then you can easily end up loosing more signal than you gain. Which is something a number of people on the forum have experienced.

If it is working for you don't worry. If you where to be installing something from scratch, it is something to bear in mind. The notion is that it is much easier to run and terminate correctly Cat5e/Cat6 than it is coax cable carrying mobile phone signals, so the use of an SXT or similar is a better option.

In reply to a post by john_32:

In reply to a post by _Belial:

Realistically, how much difference will that 5m of coax make to the stability or latency if at all?

I agree the mathematical losses may be low (15ft of RG58 @ 900MHz has a loss of around 2.2 dB) compared to the gain of the antenna (typically 10dbi+ from a yagi)

But practically we found it problematic, moving to Outdoor IADs (like the Mikrotik SXT) has been fantastic for us, running network cable is so much easier and more reliable

The 4G-XPOL-A0001 has a rated increase of +4dbi with a cable loss of 2.65db for 5 metres (0.53db/m) @1710 - 2700 MHz

Edited by gary333 (Mon 17-Feb-20 13:57:09)

THe figures with the antenna mounted outside are:

RSRQ-8.0dB
RSRP-78dBm
RSSI>=-51dBm
SINR26dB

Compare with the 535's internal antenna only:

RSRQ-7.0dB
RSRP-99dBm
RSSI-73dBm
SINR8dB