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Missions

Size: 2.22" (w) x 3.79" (l) x 1.05" (h) (56.4mm x 96.3mm x 26.7mm)

Weight: 3.88 oz. (110 g), not including cable

• Operating Temperature: -30°C to +80°C (internal temperature)
• Storage Temperature: -40°C to +80°C

Typical current draw: 80 mA @ 12 VDC

This is the GPS we used to use on our secondary communication payload.  It's lightweight, waterproof and durable.

There are multiple models of the GPS 35.

We went for the HVS ($189) model because the bare wire ends allow you to solder on what you want (i.e. plugs, power adapters.)

We no longer use it because the Garmin 18 is lighter by almost 50% (the weights claimed by Garmin are not correct).

Pros

Has a built in antenna. So you don't need to include a trailing antenna like you do with the GPS 25 models.

Lightweight because it's just the GPS circuit board and an antenna. No LCD or battery.

Takes anywhere from 3.6-6 VDC unregulated

Cons

Hard to tell if and when it's working because their is no LCD.