Aviation FAQ

  1. I already have GPS in my iPad (cellular) or iPhone. Why do I need the Bad Elf GPS?
  2. How do I know the Bad Elf GPS will work well in my cockpit?
  3. What sort of guarantee do I have if it won’t work in my cockpit?
  4. Additional FAQ Topics

 

I already have GPS in my iPad (cellular) or iPhone. Why do I need the Bad Elf GPS?

The GPS receiver inside these 3G devices works great on the ground, particularly when in range of a 3G cellular network. The internal Apple GPS is a real GPS receiver, but the size of the device and its proximity to other antennas limits performance. To get around this, these internal GPS receivers use Assisted GPS data from cellular network towers to obtain a faster signal lock. The GPS works even if you don’t pay for monthly 3G service from a wireless provider.

These internal GPS receivers were not designed for aviation, so most pilots report that they lose lock, or have trouble maintaining a lock, when at altitudes greater than 2,000 AGL or when operating at high speeds. Under such conditions, lock times can take 5-20 minutes, if you get lock at all. In contrast, the Bad Elf GPS delivers better performance with rock solid WAAS GPS locks at altitudes up to 60K feet and at speeds up to 1,000 mph. Acquire a satellite lock in as little as 30-45 seconds and observe accuracy to 2.5 meters.

The Bad Elf GPS delivers...

  • Twice the accuracy (2.5m vs 5m)
  • Ten times the sampling rate (10Hz vs. 1Hz)
  • More sensitivity, enabling use in urban canyon environments!

 

How do I know the Bad Elf GPS will work well in my cockpit?

Most pilots have no trouble getting a satellite lock with the Bad Elf GPS anywhere in their cockpit. Some pilots set up the Bad Elf GPS under the glass during pre-flight to obtain an initial lock. They then place the iPad on a kneeboard during flight without losing lock. In a small percentage of aircraft, pilots have adopted a 30-pin dock extender enabling greater placement versatility for an unobscured view of the sky.

 

What sort of guarantee do I have if it won’t work in my cockpit?

If you find that the Bad Elf GPS will not work in your particular cockpit, we will refund your purchase. No hassles.