Community discussions

MikroTik App
 
RogerWilco
Member
Member
Topic Author
Posts: 434
Joined: Wed Feb 16, 2011 6:02 am
Location: Australia

SXT LTE kit antenna

Wed Dec 26, 2018 2:18 am

Probably a silly question, but the specification PDF says the SXT LTE kit has a 60 degree 9 dBi antenna... is this MIMO like the other SXT devices?
 
User avatar
sebastia
Forum Guru
Forum Guru
Posts: 1782
Joined: Tue Oct 12, 2010 3:23 am
Location: Antwerp, BE

Re: SXT LTE kit antenna

Wed Dec 26, 2018 3:12 am

As I've understood it, the kit can be used with one sim at a time, even though there are two slots available. One can easily switch between sims, but use two at the same time.
 
User avatar
mkx
Forum Guru
Forum Guru
Posts: 11627
Joined: Thu Mar 03, 2016 10:23 pm

Re: SXT LTE kit antenna  [SOLVED]

Wed Dec 26, 2018 11:25 am

Probably a silly question, but the specification PDF says the SXT LTE kit has a 60 degree 9 dBi antenna... is this MIMO like the other SXT devices?
LTE category 4 implies 2x2 MIMO. Note that with LTE devices, 2x2 MIMO is realized as dual polarization MIMO (polarization planes shifted by 90 degrees) in 99.99% cases as it works well even for symetric pattern antennae (horizontal and vertical patterns similar, as it is case with dish and most Yaggi or log-periodic antennae).

Also note that advertised gain (7 dBi or more) is there for "high bands" (1800-2700 MHz). For low bands (800 and 900 Mhz), actual gain is sub 2dBi and for US 700 MHz band gain is sub-zero. Which sucks big time. There are much better antennae available on the market, although not as "professionally looking" (i.e. a log-periodic antenna with gain of 11-15 dBi in the whole low-high frequency range).
 
RogerWilco
Member
Member
Topic Author
Posts: 434
Joined: Wed Feb 16, 2011 6:02 am
Location: Australia

Re: SXT LTE kit antenna

Thu Dec 27, 2018 1:05 am

Probably a silly question, but the specification PDF says the SXT LTE kit has a 60 degree 9 dBi antenna... is this MIMO like the other SXT devices?
LTE category 4 implies 2x2 MIMO. Note that with LTE devices, 2x2 MIMO is realized as dual polarization MIMO (polarization planes shifted by 90 degrees) in 99.99% cases as it works well even for symetric pattern antennae (horizontal and vertical patterns similar, as it is case with dish and most Yaggi or log-periodic antennae).

Also note that advertised gain (7 dBi or more) is there for "high bands" (1800-2700 MHz). For low bands (800 and 900 Mhz), actual gain is sub 2dBi and for US 700 MHz band gain is sub-zero. Which sucks big time. There are much better antennae available on the market, although not as "professionally looking" (i.e. a log-periodic antenna with gain of 11-15 dBi in the whole low-high frequency range).
Cheers mkx!

Who is online

Users browsing this forum: No registered users and 83 guests