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Is anyone using a Lithium portable power bank for a G11-Gemini1? If so, are you providing 18V as well as 12V and if so, how?

Thanks Brendan, ...I had actually seen this useful page when I searched.....but the appearance of -5v as well as +5v on another pin made me think mine might not be like the one in the diagram for some

Oh one thing. I ment that you may need to lower data out rate to 4800 bps as most are 9600bps. Usually easiest to do this with USB or USB/Rs242 converter and terminal program like terraterm. There

https://gpswebshop.com/products/globalsat-mr-350p-bulkhead-waterproof-gps-receiver?variant=44535212934 Opens a PDF shows the connector PS2 type pins and which pin (and colour) is which also here on

Hi Brendan Thanks for the info. The GPS is a Globalsat BR305. By examining the USB adapter it came with, I managed to determine which pin on the PS2 connector is +5v. Strangely(I thought) there is -5v

Without knowing the GPS unit no one can tell. I mean it could use +/-12v rs232 not 5V or even 3V. Though I doubt it. It might have a buffer IC driver which protects things like cross connection If it

Hi There, I'm replacing my GPS unit because the old one suffers from the GPS rollover issue. However, the PS2 connector is wired differently on my replacement unit, but I still wish to use the 4 pin

Good evening, Have you sold your Gemini 2? Is the hand controller included? I may be interested. Mark Whittier, CA

Years ago I published this document about making a Gemini GPS from an inexpensive GPS module. ?My unit is still in operation on my Gemini 1 after all this time. ?Hope it helps. - Bill

I've miss connected Rx/Tx ...it shouldn't cause any problems.? But that was different chipsets!?? You can use the mini USB and import GPS data thru Gemini ASCOM...FWIW Cheers -- Brendan

Thanks. I had the power pins down. It was the Tx and Rx pins I was not sure of. I know I have a fifty fifty chance of getting it right. But like I always say a fifty fifty chance of being right means

Have a look at the Garmin site see pdf here, page3 https://www8.garmin.com/specs/pcwiring.pdf This identity’s the data pins and power pins. ?Buy a comparable connector off fleabay and wire the

Does anyone have a wiring diagram for the GPS (Garmin GPS 72/73 to an RJ22 male connector (4P4C)?

Yep understood cheers Ted. ?Soldering these pins are a pain. ?I drill the rear cups out to maximum I can ?so the wires fit better. Still it’s a battle Cheers gents -- Brendan

Brendan, Paul K is correct. Two power cables for the Gemini 1. Sorry for the ambiguity. I understand that the diagram shows the inputs on the Gemini 1 CPU and not the power cable end and the cable end

I think Ted meant he has 2 power cables for Gemini-1 :)

Actually I just twigged you said Gemini 2! ? Are you sure? ? ?This image included in this thread is for a Gemini 1, 4 pin DIN power socket. Yet you said you have two power two rerun GND. So I’m a

Ted the above image is showing the power pins as looking at the power socket, not the plug! Looking at the plug (front), the pins are mirrored! ? Take that into consideration. Cheers -- Brendan

I have 2 Gemini power cables. One I have used for years, the other didn't seem to work. I ran across it recently and decided to rehab it. Referring to Paul K's diagram, the known good cable has the

Thanks! Good to know.