- Joined
- May 20, 2020
- Messages
- 10
Hey all,
I’m working on a project and I need some guidance on how to approach this antenna setup for my project.
I have repeater A on top of a mountain and I am working on an RF link/range extender by using 2 mobiles to link repeater A to portable repeater B on site.
Here are the details of my setup:
Repeater A- Motorola SLR5700(Analog):
RX- 469.500 TX- 464.500
Repeater B- Motorola SLR1000 (Analog):
RX- 456.500 TX- 451.500
RF Link (Analog):
2- Motorola XPR5550e
Here is the setup for the XPR5550e radios:
Mobile A-
RX- 464.500 TX- 469.500
Mobile B-
RX- 451.500 TX- 456.500
Both mobiles are currently setup with an RA-2T cable, which, I have been told, is normally used in a crossband repeater setup.
I am able to get both mobiles repeating bi-directionally so far.
What I don’t know/understand is the best method for an antenna setup. If each mobile were only using simplex, then I would imagine I would need a duplexer. Because each mobile is setup for duplex, what is the best method for an antenna setup? I would prefer to use 1 base station antenna for both mobile radios. Do I need to use 2 duplexers and an antenna combiner? I’m not well versed in antenna setup for this situation, so please forgive my ignorance.
Any help would be greatly appreciated.
Thank you.
I’m working on a project and I need some guidance on how to approach this antenna setup for my project.
I have repeater A on top of a mountain and I am working on an RF link/range extender by using 2 mobiles to link repeater A to portable repeater B on site.
Here are the details of my setup:
Repeater A- Motorola SLR5700(Analog):
RX- 469.500 TX- 464.500
Repeater B- Motorola SLR1000 (Analog):
RX- 456.500 TX- 451.500
RF Link (Analog):
2- Motorola XPR5550e
Here is the setup for the XPR5550e radios:
Mobile A-
RX- 464.500 TX- 469.500
Mobile B-
RX- 451.500 TX- 456.500
Both mobiles are currently setup with an RA-2T cable, which, I have been told, is normally used in a crossband repeater setup.
I am able to get both mobiles repeating bi-directionally so far.
What I don’t know/understand is the best method for an antenna setup. If each mobile were only using simplex, then I would imagine I would need a duplexer. Because each mobile is setup for duplex, what is the best method for an antenna setup? I would prefer to use 1 base station antenna for both mobile radios. Do I need to use 2 duplexers and an antenna combiner? I’m not well versed in antenna setup for this situation, so please forgive my ignorance.
Any help would be greatly appreciated.
Thank you.