GPS Receiver - GS407 Helical (50 Channel)

Combine the u-Blox chipset with Sarantel's powerful SL1206 helical antenna and you get the impressively sensitive GS407. Whether this receiver is in your pocket or under your car seat, you are likely to pickup a rock solid GPS signal.

Not sure which GPS module is right for you? Check out our GPS buying guide!

Note: The GS406 has been replaced with this GPS receiver. The specifications are almost all identical, but the GS407 makes use of a newer helical antenna, which makes the overall length a bit smaller.


  • u-Blox 6 chipset
  • Sarantel omni-directional Geo-helix SL1206 active antenna
  • 4Hz Max Update rate
  • Fifty satellite tracking channels for fast acquisition
  • Supports UBX data protocol at various standard baud rates
  • Filtering effect of the antenna gives high immunity to RF interference
  • Wide antenna Beam width
  • Low power: 3.3V @ 75mA
  • Time to fix:
    • Hot start: <1 second
    • Warm start: 29
    • Cold start: 29* Length (with antenna) 47.1mm
  • Width: 22.9mm
  • Weight: 16g

GPS Receiver - GS407 Helical (50 Channel) Product Help and Resources

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

3 Electrical Prototyping

Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #134393 / about 11 years ago / 4

    Just to let people know, the EM-406 breakout board cannot be used as is. It does work though if you plug the GPS into the breakout board but the pins on the breakout board should be hooked up TX->TX, RX->RX, GND->1PPS, 3.3V->GND, an LED ->5V. With the 3.3V to the ground pin it will heat up both the VCCand the VBATT on the GPS chip. This is how i got it to work. I am also experiencing that it does not retain the configuration after the power is removed. Too bad they did not use the prior version chip-set for the GS407.

  • Rico_fr / about 12 years ago / 3

    Which chipset is it exactly? There are an half dozen of u-blox 6 versions.

  • Member #402536 / about 11 years ago / 2

    Does this have UART? I don't see it on the connector (just USB), but it does mention it on the title page. If it does have UART, where do you hook it up?

  • Member #7687 / about 11 years ago / 2

    can anyone shed light on how to get this working as USB mode, simply wiring it up isn't working for me.

  • As far as the chipsets, the datasheet says it supports GPS L1 and GALILEO systems. Only the LEA-6N and LEA-6H support those. But that's just an educated guess. It would be nice to find some more documentation though.

  • Member #529120 / about 10 years ago / 1

    can this module work under extreme temperature conditions like -40 C,if used in a satellite project?

  • timothy1324 / about 10 years ago / 1

    Any idea if these have been discontinued? I need a matching receiver for a project. Thanks.

    • They haven't been discontinued as far as we know, but the antenna manufacturer has been having some financial difficulties, so we are still waiting to see how things work out for them and whether we'll be able to actually continue stocking these.

      • timothy1324 / about 10 years ago / 1

        Thanks Toni. I was really hoping for just one more of these since I would have to redesign my project and none of the other GPS's that I've seen have a helical antenna.

        • You could try checking in the forums and on IRC to see if anyone else has one they'd be willing to sell you. Alternatively, you could try checking with one of our distributors and see if they might have some stock still.

  • RocketGuy / about 11 years ago / 1

    And looks like it's replaced with ?

  • Member #124366 / about 11 years ago / 1

    What is the manufacture's part number for the J1 mating connector?

    Connector Type 5.1 On Module => 1OOSH-O6P 5.2 On Device => 1OOSH-T

  • dvdvck / about 11 years ago / 1

    Someone can confirm if this product has serial or usb interface? :)

  • paul_h77 / about 11 years ago / 1

    I have directly contacted the manufacturer and have been told the chip is the UBX-G6010-ST standalone GNSS chip. It does not have one of the standard Ublox-6 Positioning modules (e.g. NEO-6 or AMY-6 etc.)

    I am not entirely sure what the major differences between the standalone positioning chips and the standalone positioning modules are as they look fairly similar in spec.

  • MostlyHarmless / about 11 years ago / 1

    Another request for the specific chipset. Thanks.

  • Member #187616 / about 11 years ago / 1

    Can configuration be written to flash on this or is it all lost on power down like the D2523T-6

    • Member #327246 / about 11 years ago / 1

      I was unable to get either of two of these receivers to write to flash. It appears to be battery-backed-ram only

  • MCG / about 12 years ago / 1

    Is the picture wrong on these? The connector doesn't look like what the GS407 BOB (BOB 10496) connector shows. The datasheet on the BOB page shows the GS407 with what looks like the proper connector for this board though. Sort of confusing.

    • Gulopine / about 12 years ago / 1

      The GS407 BOB was made for the old version of this unit ( This one would use the EM-406 BOB instead, so they should probably just remove the GS407 BOB from the Related Products for this one. Maybe at least add a note on the GS407 BOB page as well, since Sparkfun doesn't even offer a GPS that works with it anymore.

  • Member #382322 / about 12 years ago / 1

    Hey Guys, could we get a confirmation of which ublox chipset this uses? I need raw GPS and ephemeris data, which only the LEA-6T or NEO-6T support. Thanks!

  • alfmar / about 12 years ago / 1

    If only this nice beast had four holes on its board...

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