Why have an electronic compass?
A GPS receiver discerns your position on the surface of the earth by measuring the length of time it takes to receive signals from satellites. It cannot, however, tell what direction you are facing while standing still (or moving slowly). So if you are navigating to a waypoint, your GPS can only point you in the correct direction once you are moving. This is where an electronic compass comes in handy. It can tell what direction you are facing, even while standing still.
Why have a barometric altimeter?
Quite simply, the primary reason you would want a barometric altimeter in a handheld GPS is for more accurate elevation readings. This is especially useful for bikers, hikers and atheletes in training. You can use the resulting data to track your progress and maintain an accurate record of your trips. A barometric altimeter can also help you accurately place your location on a topo map. Furthermore, you can use the altimeter to forecast weather on the mAh rating of the batteries you use, and the update frequency you select you will get different run times.
How much power do the TX-units use?
Depending on the mAh rating of the batteries you use, and the update frequency you select you will get different run times. As well, the radio can be put into 'serial sleep' mode which lowers its power consumption when not transmitting down to 5 ma. Setting the Radio to 'serial sleep' does help conserve battery power for applications where the update time is 10 seconds or more. The following examples assume and update frequency of 1 second.Quite simply, the primary reason you would want a barometric altimeter in a handheld GPS is for more accurate elevation readings. This is especially useful for bikers, hikers and atheletes in training. You can use the resulting data to track your progress and maintain an accurate record of your trips. A barometric altimeter can also help you accurately place your location on a topo map.
When starting FsXPand, I am unable to taxi away. What is happening?
There was a bug in version 4.3 causing the parking brakes to lock. If this behaviour is still present in version 5.1, please check if you have assigned brakes to a analog channel and wired it up reversely (a common error). You should be able to taxi when the brakes are fully down. Reverse the wiring in that case.
How accurate are the heights or depths?
The aircraft vertical position was determined using the navigational positioning equipment on the aircraft, which were radar altimeter and barometric altimeter. Radar altimeters are estimated to have an error of 2-5% of the altitude (Richard Hansen, PRJ, Inc., written communication). Barometric altimeters are quite accurate, but are typically operated in an uncorrected mode.The aircraft vertical position was determined using the navigational positioning equipment on the aircraft, which were radar altimeter and barometric altimeter. Radar altimeters are estimated to have an error of 2-5% of the altitude (Richard Hansen, PRJ, Inc., written communication). Barometric altimeters are quite accurate, but are typically operated in an uncorrected mode.
How accurate are the heights or depths?
The aircraft vertical position was determined using the navigational positioning equipment on the aircraft, which were radar altimeter and barometric altimeter. Radar altimeters are estimated to have an error of 2-5% of the altitude (Richard Hansen, PRJ, Inc., written communication). Barometric altimeters are quite accurate, but are typically operated in an uncorrected mode.Some high-end GPS devices offer barometric pressure to obtain a measurement for elevation when signal reception is not very good. The result is that you will have a smoother elevation profile in the Dashboard and Map Player. Without an altimeter, the GPS assumes your elevation is not changing when the signal goes bad. This results in a blocky elevation profile. - 15465
A GPS receiver discerns your position on the surface of the earth by measuring the length of time it takes to receive signals from satellites. It cannot, however, tell what direction you are facing while standing still (or moving slowly). So if you are navigating to a waypoint, your GPS can only point you in the correct direction once you are moving. This is where an electronic compass comes in handy. It can tell what direction you are facing, even while standing still.
Why have a barometric altimeter?
Quite simply, the primary reason you would want a barometric altimeter in a handheld GPS is for more accurate elevation readings. This is especially useful for bikers, hikers and atheletes in training. You can use the resulting data to track your progress and maintain an accurate record of your trips. A barometric altimeter can also help you accurately place your location on a topo map. Furthermore, you can use the altimeter to forecast weather on the mAh rating of the batteries you use, and the update frequency you select you will get different run times.
How much power do the TX-units use?
Depending on the mAh rating of the batteries you use, and the update frequency you select you will get different run times. As well, the radio can be put into 'serial sleep' mode which lowers its power consumption when not transmitting down to 5 ma. Setting the Radio to 'serial sleep' does help conserve battery power for applications where the update time is 10 seconds or more. The following examples assume and update frequency of 1 second.Quite simply, the primary reason you would want a barometric altimeter in a handheld GPS is for more accurate elevation readings. This is especially useful for bikers, hikers and atheletes in training. You can use the resulting data to track your progress and maintain an accurate record of your trips. A barometric altimeter can also help you accurately place your location on a topo map.
When starting FsXPand, I am unable to taxi away. What is happening?
There was a bug in version 4.3 causing the parking brakes to lock. If this behaviour is still present in version 5.1, please check if you have assigned brakes to a analog channel and wired it up reversely (a common error). You should be able to taxi when the brakes are fully down. Reverse the wiring in that case.
How accurate are the heights or depths?
The aircraft vertical position was determined using the navigational positioning equipment on the aircraft, which were radar altimeter and barometric altimeter. Radar altimeters are estimated to have an error of 2-5% of the altitude (Richard Hansen, PRJ, Inc., written communication). Barometric altimeters are quite accurate, but are typically operated in an uncorrected mode.The aircraft vertical position was determined using the navigational positioning equipment on the aircraft, which were radar altimeter and barometric altimeter. Radar altimeters are estimated to have an error of 2-5% of the altitude (Richard Hansen, PRJ, Inc., written communication). Barometric altimeters are quite accurate, but are typically operated in an uncorrected mode.
How accurate are the heights or depths?
The aircraft vertical position was determined using the navigational positioning equipment on the aircraft, which were radar altimeter and barometric altimeter. Radar altimeters are estimated to have an error of 2-5% of the altitude (Richard Hansen, PRJ, Inc., written communication). Barometric altimeters are quite accurate, but are typically operated in an uncorrected mode.Some high-end GPS devices offer barometric pressure to obtain a measurement for elevation when signal reception is not very good. The result is that you will have a smoother elevation profile in the Dashboard and Map Player. Without an altimeter, the GPS assumes your elevation is not changing when the signal goes bad. This results in a blocky elevation profile. - 15465
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