Is it possible to split the GPS signal on the BC-SGPS to and 325P2 and an SDS100? I tried using a serial Y cable with the appropriate serial to USB adapters and neither scanner receives a gps signal. If I only plug 1 scanner into the module without the splitter the gps works fine. I saw other posts where folks have had success doing this but I’m not getting anywhere. Any ideas? Or is this set up not possible without a second gps kit
GPS for 2 scanners?
- Thread starter licpl8man
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Can you link those success posts?
GPS Receiver working with multiple scanners
I've got the Uniden GPS receiver installed in my vehicle for use with a 996XT. Is there a way to make this receiver work on two scanners at the same time? With a little tinkering and some equipment, one antenna can serve two scanners or one external speaker can server two scanners, so I was...
Ubbe
Member
I've connected several 2-way radios to the same GPS. If you only connect ground and each receivers RX pin to a GPS's TX data it can drive several receivers/scanners without any issues. It's a one way communication and each receivers RX pin doesn't load the GPS's TX pin much at all.
/Ubbe
/Ubbe
I’m starting to suspect that the issue is with the serial splitter and usb to DB9 adapters that I have. The only serial cable that works properly is the one that was included with the gps kit. If I plug my aftermarket cable into the scanner and converter box the gps does not work but when I use the one supplied with the kit it works fine. I’m suspecting that uniden uses a non standard pin arrangement on the serial side of the cable. Does anybody have a pinout diagram for the bc-sgps kit that I can compare to a rs232 pinout?
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- Feb 20, 2025
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I wondered about this and thought it would work. I will try connecting my SDS100 and Home Patrol 2 to the same GPS in the car. I use the HP2 for most listening because the display is much easier to read and control when mobile, but the SDS100 is required for simulcast systems.
Thanks.
I created a custom cable to share my Garmin GPS to up to 4 scanners and my Kenwood APRS rig years back. I used a simple barrier strip and appropriate cables to the radios.
In my current vehicle I have a simplified setup with 2 546's sharing a single Uniden GPS receiver, again with serial cables to the radios and just soldered the appropriate wires, Works great!
On the DB-9 Pin 2 is the Data and Ground is Pin 5, just connect those in parallel to the GPS data na dground.
In my current vehicle I have a simplified setup with 2 546's sharing a single Uniden GPS receiver, again with serial cables to the radios and just soldered the appropriate wires, Works great!
On the DB-9 Pin 2 is the Data and Ground is Pin 5, just connect those in parallel to the GPS data na dground.
The SDS100 uses the same USB cable for GPS and Scanner power this will require very careful work or you could kill both.
Splitting a 9 Pin Serial is very different than Splitting USB.
Splitting a 9 Pin Serial is very different than Splitting USB.
Yeah, you are right. I should have read the entire thread instead of the last couple posts!
Would I be connecting pin 2 of the db9 to the data receive wire on the usb and pin 5 of the db9 to the ground wire of the usb? I‘m not worried about powering the scanners as I’m using this set up for
my commute to and from work and the batteries will easily last for the round trip. Thanks
my commute to and from work and the batteries will easily last for the round trip. Thanks
The PIN numbers were for a DB9 serial port, I failed to notice you were using USB enabled handhelds.
As for sharing with them it would be more complicated but I wonder is some sort of USB hub could be leveraged with the GPS receiver being the host.
