NR5103 external antenna ports

Markc83

Would you be able to tell me the configuration of the 4 external antenna ports on this router.

chichin79

Would also like to know about this!

tonygibbs16

Hello,

The NR5103 datasheet at https://spdl.zyxel.com/NR5103/datasheet/NR5103_2.pdf has some details about the external and internal antennas.

Read the ** note about the frequency band support of the external antenna connectors. It says the external antenna connectors support 698 to 4200 MHz frequency.

Kind regards,
    Tony

lucapagliuca

up!

mika_kapu

The given link does not work. There is no source to find detailed manual for this NR5103 product!

tonygibbs16

Hello @mika_kapu

Welcome to the forum.

There is information about the NR5103 at https://service-provider.zyxel.com/emea/en/products/5g-nr4g-lte-cpe/5g-nr-cpe/idus/nr5103

If you click on Downloads & resources about half way down the page, then it will take you to an area where there is a user guide dated May 2023.

Kind regards,

Tony

lucapagliuca

just to inform you that based on some tests done with my existing antenna (2×2 MIMO 700-3800 mhz with 2 plugs) where I tried all the possible combinations: only connecting ports 1 and 3 results in good LTE+NR throughput (1 being the top connector). The modem shows that UL and DL CA are working. All other combinations end up in very bad results... I definitely need an explanation on the reasons behind this weird behavior.