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Split antenna signal to 2 (or more) scanners

Joined
Nov 20, 2007
Messages
8
#1
Hi,

I have Discone antenna (link) connected to 50' RG8X coax cable (link) which is plugged into my scanner directly with an SO-239 to BNC adaptor (link). The antenna and current setup works great. I would like to set up another scanner and use the same antenna, so I have 2 (or more) scanners using the signal from the same antenna. Is there a way to split the signal from the antenna? If so, what hardware would I need?

I assume I just need a splitter and the right cables / ends? I'm new to the whole antenna thing (usually just use the antenna's that come with the scanner). So any help / specific product links would be greatly appreciated.

Thanks
 

TailGator911

Member
Premium Subscriber
Joined
Feb 12, 2005
Messages
1,354
Location
Fairborn, OH
#3
Anytime you split your signal with adapters and couplers you will be losing dbs to the scanner, along with the minimal loss per footage of your coax feed line. You can buy simple Y-couplers (CATV or others) and install one and if your local systems are very strong and the transmit towers are close you probably won't even notice the signal loss. If you want to minimize that signal loss to both scanners, you can invest in a Stridsberg 4-port multi-coupler (not sure if they make a 2-way) that is an amplified (requires AC voltage adapter, included) splitter. They are pricey but well-worth the dinero when it comes to maintaining good strong signal from your antenna to the radio. There are other brands, makes and models, but Stridsberg is generally considered the best quality by scanner enthusiasts. You can go cheap and hope for the best, or you can do it right and get r' done.

JD
kf4anc
 
Joined
Nov 20, 2007
Messages
8
#4
Anytime you split your signal with adapters and couplers you will be losing dbs to the scanner, along with the minimal loss per footage of your coax feed line. You can buy simple Y-couplers (CATV or others) and install one and if your local systems are very strong and the transmit towers are close you probably won't even notice the signal loss. If you want to minimize that signal loss to both scanners, you can invest in a Stridsberg 4-port multi-coupler (not sure if they make a 2-way) that is an amplified (requires AC voltage adapter, included) splitter. They are pricey but well-worth the dinero when it comes to maintaining good strong signal from your antenna to the radio. There are other brands, makes and models, but Stridsberg is generally considered the best quality by scanner enthusiasts. You can go cheap and hope for the best, or you can do it right and get r' done.

JD
kf4anc
Thanks... so just to confirm... I need:
(1) 4 Port MCA204M VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz | Scanner Master
(2) RG58 Jumper Cable, 3', BNC Male to BNC Male | Scanner Master

It looks like they have BNC connections, so my BNC adaptor should already fit to the input side... is that it or am I missing something?

Does this work with low band and high band?
 

TailGator911

Member
Premium Subscriber
Joined
Feb 12, 2005
Messages
1,354
Location
Fairborn, OH
#6
I have both the 4-port and the 8-port dividing signal to numerous scanners from a Diamond discone and a directional yagi, and I am about to buy another 4-port for my RV to split signal there. I highly recommend Stridsberg, and have used them for years. I had one blow out on me recently and called them and spoke to a nice old ham guy named John and they just sent me a brand new one. Great customer service, as well.
 
Joined
Sep 8, 2006
Messages
2,773
Location
Stockholm, Sweden
#8
You could first try a simple $5 T-connector to divide the coax to two. If you have good signals now then that's probably the only thing you'll need.

A problem could be that one scanner could send out a weak signal out its antenna port that the other scanner picks up and stops its scanning. Then you could need that recommended $10 CATV splitter that often use F connectors so you will need adaptors or pigtails to use it.

Start cheap with a $10-$20 solution and use the $200 one as a last resort.

/Ubbe
 
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