I replaced the backup batteries in two of my SR530's last year. It's a very easy job. The batteries are round- probably 20mm in diameter and 3 - 5mm t...

Naturally, Port 2 is an option. But then you are limited to only fixing your position at your GPS unit. If you want a positional fix displayed on your...

I re-cell my own. I got to the stage where I needed to re-cell 6 in one hit, so I bought a cheap capacitive discharge welder from China for less than ...

That's it. Your GPS 500 is now streaming NMEA data out to the bluetooth module and is waiting for you to feed it a RTCM3 correction stream from your A...

GPS 500 Configuration:*Connect the cable to the GPS 500.*Turn the unit on as usual.*Press "CONFIG", then "4 Interfaces".*Select "1 Real-Time". Press E...

Here's my finished cable:

As you can see, it's actually quite simple.

Wire it all together like this:

NOTE: If you follow this tutorial, then you will be wiring up a DB9 serial com port plug to supply power to the bluetooth module. Remember that fact b...

Here's the GPS 500, or at least, here are my two GPS 500 units. I drafted this up in AutoCAD and performed my own checks on all the ports. I did this ...

Regarding the voltage reducer: The Parani manual says that it will run on 12V. However, I have read in more than one internet forum that people who ha...

So, you'll need:*A 5-pin 1B Lemo plug that has all the required wires inside. I would recommend a TR500 cable or a GEB171 battery cable. Personally, I...

The 8-pin Lemo "data to PC" cables are also unsuitable at the DB9 (serial port) end, because the bluetooth modules on the market use the "ring indicat...

So, you'll need a Lemo cable that is able to carry data and power at the same time. The 5-pin Lemo "data to PC" cables that you see on eBay (whether t...

There is no need to provide your bluetooth module with external power and carry around extra batteries and cables. Everything you need is provided by ...

If you'd like to use your Android app to its full potential then you'll need two-way communication between your GPS 500 and your Android app. This is ...

The Lefebure NTRIP client is the way to go due to its simplicity, zero cost and user-friendly interface, and the RTKGPS+ app is also free. It offers g...

The TopView Android app and the Carlson system require an external data recorder, because they both tie up the Terminal port on your GPS 500 by requir...

There are also existing NTRIP systems on the market that have been created by various companies, but they have their limitations. The CellXtrem module...