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Description: The GP-735 is a slim, ultra-high performance, easy to use GPS smart antenna receiver. With -162dBm tracking sensitivity and only 29 second cold start time, the GP735 is a tiny, yet powerful, piece of tech. The slim design makes it ideal for applications where you don’t have a lot of space to work in. Really it’s quite small. This 56-channel GPS module, based on the uBlox 7th generation chipset, has an operating voltage of 3.3~5.5V, an antenna on board, and connects to your system via TTL serial. The 1Hz update rate is fast enough for the majority of applications (and can be increased to 10Hz if you need) so whether you’re tracking a pet or building an autonomous car, the GP-735 has you covered!

Note: We are carrying the “T” option of this module which is TTL-UART and not USB.

Note: This receiver works with 6-pin 1mm pitch JST type cables and connectors which you can find in the Recommended Products section below!

Dimensions: 35 x 8 x 6.5 mm

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Recommended Products

Customer Comments

  • Does this have pin out for 1PPS pulse ? datasheet does not mention except in specs ???

    • I don’t see in the datasheet any mention of PPS (a text search in AdobeReader for “PPS” shows zero hits). You might be confusing PPS with update rate.

      Unless one of the test points accessible on the top-side is the PPS signal, I think the only way to get a PPS out of this is to kludge a pseudo PPS by setting a PPS flag at the start of each second’s worth of NMEA sentences and then clearing it 500ms later.

  • I think <4g is the acceptable acceleration limit(<4x gravity), not the mass. Does anyone have the weight of this module? Could be a good contender for small flying stuff if it’s light.

    P.S. Actually it’d be great to see sparkfun start putting weight on the specs of more of their stuff with the rise of so many flying robots. Ya’ll are already great about putting a scale on your many pics, this would just be a suggestion for a slight bump in awesomeness

    • On retrospect, I think you are right that I misread the <4g acceleration limit as the item’s mass. My bad.

  • This little tiny (and light) GPS module would probably work well for amateur high-altitude ballooning. The stated max altitude is 50km (164kft). When I was working at UDel, one of the projects I worked on was stratospheric balloons (we had 2 payloads, and collaborated on a 3rd). These professionally made zero-pressure balloons typically topped out at between 120kft and 130kft (under 40km). Many amateur launches using rubber weather balloons should expect between 60 and 105kft (18.3 to 32km), well within the max altitude of this module. At a weight (well, actually mass) of less than 4 grams, that leaves more payload capacity for other things, or to allow more altitude.

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