At a glance, the large LCD display with backlight immediately distinguishes the GPS Pro from the competition, allowing pilots to see at a glance the quality of the GPS lock as well as battery level, WAAS lock status, ground speed, altitude, and heading data. Pilots no longer need to guess at the meaning of blinking LED lights or leave their flight app to check the status to the GPS unit
The Bad Elf GPS Pro is the first GPS for the iPad that:
1. Connect simultaneously via Bluetooth to up to five iOs devices at the same time. Useful for pilots who fly with a co-pilot or passengers that want to track the progress of their flight.
2. A display screen that shows information regarding the aircraft's position, speed, altitude, battery life and accuracy.
3. A data logger option to record flight paths flown. Useful to those that need to log such information or for reviewing post flight.
4. An extended life battery that lasts up to 12 hours.
For multi-crew aircraft, or pilots who use their iPhone as a backup for their iPad in the cockpit, the GPS Pro allows up to five devices to be connected at the same time.
Combined with the 30 foot wireless range, pilots can easily share the flight's real-time GPS data with passengers in the cabin who may be following along on their own iPad devices.
The GPS Pro offers a 16-hour battery life when connected wirelessly via Bluetooth, which is great for commercial pilots flying long international legs or pilots who don't want to have to remember to fully charge the device each time they go flying. Location data is provided at up to ten times per second for maximum performance.
In addition to providing real-time GPS data wirelessly to any connected devices, the Bad Elf GPS Pro includes an internal data logger with storage for up to 100 hours of location data. This is perfect for student pilots and flight schools wanting to track flights, critique instrument approaches, and store data for analytics. The device records up to 100 hours of location data, which can be downloaded, viewed, and shared after the flight.
An external GPS is REQUIRED even if your iPad has the A-GPS chip as found in the 3G models. Why? Because the A-GPS in the iPad has proven to be unreliable for many pilots. Pilots report loss of GPS signal in the air, an inability to acquire or re-acquire a GPS signal once in the air, or periods of time where no GPS signal is present.
An external GPS is ESSENTIAL when your iPad does not have a GPS (when a 3G version is not purchased). Why? Because the WiFi iPad version does not have any GPS at all.
GPS Technical Specs:
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Posted by Unknown on 23rd Feb 2015
Posted by Unknown on 18th Jan 2014
As I fly an aircraft with a heated windshield, the GPS in my IPad was not sensitive enough to pickup the signals. The Gps Pro picks up many satellites. Much better performance than i expected.
Posted by Steve on 11th Apr 2013
I throughly like the Bad Elf Pro unit, I also have their other GPS unit, but don't like it sticking out the bottom of my iPad Mini.
Only thing I have found, was to change the ElfPort Speed to 115200 instead of Automatic, as it was dropping the bluetooth connection all the time, after changing that, seems to be perfect now.
Posted by luxemburger piper pilot on 26th Nov 2012
first I used it as backup of my garmin one, but now more offen as my primary one linked with my Ipad 3
Posted by Captain William on 15th Nov 2012
The Bad Elf is geographically accurate, has good battery life, and has an informative interface both on the device and in the App. This leaves no question whether the device is working properly or not, and all without having to Jailbreak the iPad.
This is tested good in international airline operations.
For those complaining of the altitude function: Suggest you understand the difference between pressure altitude and absolute altitude as measured by the GPS and the limitations of civilian use of the GPS system. You all have certified altimeters in your aircraft, why be concerned with uncertified GPS altitudes that are not designed for aviation use?
This unit simply works like it should.
Posted by Unknown on 13th Nov 2012
My planned to use the Bad Elf GPS both for my I-Pad with ForeFlight, and for bicycling. I am not sure it will be adequate for either.
The lag time between the plane’s altimeter indication and the Bad Elf Pro on take-off was quite long, and over 800 feet off. On one take-off we were level at 1,100 ft (pattern altitude) on downwind, and the Bad Elf Pro was indicating 255 ft. On a few other ascents and descents, it regularly lagged a few hundred feet behind the altimeter.
With the Bad Elf Pro indicating 11 satellites in view, and in WAAS fix type, indicated elevation was 41 ft at an airport elevation of 135 ft. Sitting at another airport at known elevation (10 ft above sea level), it indicated over 20 feet below sea level.
During level cruise, it does catch up and generally agrees with the altimeter within 100 feet. The indicated elevation seems to fluctuate +/- 50 feet or more over time while stationary at a given location.
It is important to do your own observations to understand both the accuracy and the lag times in response (with this and other products). Possibly my expectations were too high. I have not checked to see the response of the GPS function of the Stratus in similar conditions, but plan to do that in the near future.
FROM: Bad Elf Support.
Altitude is the last piece of the GPS puzzle to get calculated accurately, and most susceptible to multi-path GPS signal reception (ie: interference from the aircraft or other structures nearby). Based on the symptoms I would guess that this is what's causing the larger altitude deltas.
The WAAS specs require 7.6 metres (25 ft) of vertical accuracy (for a certified GPS with external GPS antena), so at ground level, a negative altitude reading isn't necessarily out of spec.
And when compared with the altimeter, keep in mind that we're talking GPS vs. pressure altitude, so offsets are to be expected and are dependent on altitude, temperature, humidity, etc. as well.
All that being said - if you think you might have a faulty unit, we'd be happy to exchange it and run some tests here. Thank you.
Posted by Al Rice on 25th Oct 2012
I use the Bad Elf Pro connected to an iPad during Instrument Training in helicopters. It is very accurate and a great tool.
Wish the Data Logger would log GPS altitude though.
Posted by Bret Pool on 17th Oct 2012
As a maritime professional Captain and recreational boater...this combo is exceptional. Many features similar to systems costing 5x or more. Holding off all purchases on larger proprietary nav systems to see how quickly all of the essential nav equipment will be integrated for the iPad. Bad Elf is a geat start!
As a bonus, both Windows and Mac laptops are now truly useful nav tools when at sea. At the same time.
Posted by Derek on 6th Oct 2012
Having used the new Bad Elf Pro for a couple of weeks it definitely delivers on its promises. Seems like the firmware could use a bit more tweaking, but so far I'm very happy with it, it is a solid performer.
PRO: GPS is very strong and gets a solid signal even indoors and in other difficult environments.
Bluetooth is likewise very strong and instantly latches onto the paired devices effortlessly.
Firmware updates are effortless AND wireless, delivered through the iPhone app over Bluetooth, very slick integration!
You can now turn off the backlight during normal operation (but NOT during charging, hope they fix that in the next update)
Very long battery life, over 14 hours in my home with Bluetooth AND backlight ON.
CONS: The USB cover is a little looser than I'd like, even though I've pushed it in all the way, it still pops open by itself.
Charging is problematic, in that the backlight stays on constantly and it never tells you when it's fully charged, just sais "charging" even after 7 hours. Hope they can fix these 2 irritations in firmware.
Screen contrast could be better, given the state of today's tech, but its amply readable even in sunlight.
So there's a few irritating small problems but they don't detract from the great performance of its core function of getting a super strong GPS fix and Bluetooth connection. The easy firmware updating is a pleasure. If they could fix the small annoyances a I've listed it would EASILY get 5 stars.
Posted by David on 22nd Aug 2012
Works great at 35,000'. Highly recommend. I use as both a live GPS to iPad using Air Nav Pro software, or as a data logger which records the route, then download to Bad Elf iPad App afterwards.
Emails to support answered very promptly.
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