Best practice for RUTX50 with 3 pcs SISO OMNI antennas?

[Searam66]

Hi! I use RUTX50 in recreational boating and planning to use 3 pcs (existing) SISO OMNI-directional marine antennas with following tech specs:

• Target network = 4G+ (LTE-A) with mobile frequency bands B1, B3, B7, B8 and B20 (698-2700MHz)
• Antenna “a” data = 1 port/SISO/698-2700MHz acting as “MAIN” antenna
• Antenna “b” data = 1 port/SISO/890-960MHz acting as “AUX1” antenna
• Antenna “c” data = 1 port/SISO/1920-2170MHz acting as “AUX2” antenna

To which antenna ports should I connect a.m. antennas to get best theoretical reception from modem signal reception point of view (assuming that RSRP&RSRQ are equal for whole frequency range)?

Should I add 4th antenna (e.g. standard MOBILE antenna) to last (remaining) port to get better reception (and not leaving it empty)?

Is RUTX50 and RUTM51 having same “behaviour” regarding recommended antenna connections?

[lemondude]

For best connection you should connect all 4 antennas.

Check Which antenna to use with a RUTX50? - #3 by Chris70CH

[Marija]

Hello @Searam66,

Apologies for the delayed response.

Could you please confirm whether your issue has been resolved or if you still require assistance?

Best regards,

[Searam66]

Yes, I’d appreciate to get answers to all submitted questions.

[Marija]

Hello,

Apologies for the delayed response.

1. For optimal performance, we recommend the following antenna configuration:
   • Antenna A → MAIN
   • Antenna B → AUX1
   • Antenna C → AUX2
2. Regarding the fourth antenna: yes, it is strongly recommended to have all four antennas connected. Leaving a connector without an antenna may negatively affect signal quality and device performance.
3. The antennas are similar in general function, but for precise specifications, please refer to the modem documentation for your specific device. For example:
   RUTX50:
   
   
   
   RUTM51:
   
   

Best regards,