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ImmersionRC EzAntennaTracker, Руководство по эксплуатации

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17 

3.

 

Flight 

3.1.

 

Status Pages 

Four status pages are available, and may be accessed using the up/down buttons while not in the setup 
menu.  

The default page shows the plane’s current (or last-known) GPS coordinates.  This includes Longitude, 
Latitude, and Altitude (Above Launch Point). The number of satellites currently locked is also shown, in 
the lower right corner.  

 

The second page shows the audio levels currently being received, along with an indicator showing ‘Low’, 
OK’, or ‘High’.  

 

The Decoder page shows the number telemetry packets decoded, along with the error rate. 

 

The Tracking Page shows the plane’s current altitude (above launch point), distance from the launch 
point, and the bearing and inclination of the antenna required to point to the plane.  

Содержание EzAntennaTracker

Страница 1: ...1 EzAntennaTracker Lite Overview Operating Instructions Preliminary April 2009 ...

Страница 2: ... 8 3 8 Checking and Debugging Audio Issues 9 3 9 Recording telemetry 9 3 10 Suitable Pan Tilt mounts 10 3 10 1 ServoCity Medium Duty 10 3 11 Low cost alternatives 10 3 12 Do I really need a Tilt axis 11 3 13 Servo Splines 11 4 Configuration 12 4 1 Setup Menu 12 4 1 1 Description of Controls 12 4 2 Setting up the servos 15 4 2 1 Servo Setup Step 1 Defining the zero position 15 4 2 2 Servo Setup Ste...

Страница 3: ...3 5 1 Status Pages 17 5 2 Calibration 18 1 Manually using a compass 18 2 Automatically using the GPS in the plane 18 5 3 19 6 Replaying recorded telemetry data 19 7 Frequently Asked Questions 19 ...

Страница 4: ...w the path that the model took during the flight drive sail This case requires no additional hardware 2 It can be recorded as above but used to find a lost plane in the event of a distant crash The gps coordinates of the last packet sent should indicate roughly or best case exactly where the plane crashed Again no additional hardware required 3 It can be fed to an antenna tracker which is driving ...

Страница 5: ...n this connector 2 Servo Power Power for the servos and the EzAntennaTracker module itself must be supplied through a standard 3 pin servo connector with only two of the pins used Looking at the front of the module power must be provided through either of the lower two connectors these are paralleled and may be use to daisy chain power to other devices Power the EzAntennaTracker unit the same way ...

Страница 6: ...st common problems experienced when setting up an antenna tracking system is to ensure the audio is correctly cabled both in the plane Tx end and on the ground Rx end Additional care must be taken if Lawmate transmitters are used with Airwave receivers or vice versa These cases will be covered below 2 4 Transmitter Audio Connection 2 4 1 ImmersionRC Airwave Transmitter If ImmersionRC Airwave trans...

Страница 7: ...RC receivers including the Duo2400 and the Fat Shark RCV922 LCD glasses all use a standard 4 pole 3 5mm jack For reasons which are not immediately obvious manufacturers of equipment using these connectors do not always follow the same pinout The 4 most common are shown below The pinout used by the ImmersionRC FatShark equipment is shown and is shared with other common consumer equipment Archos Cre...

Страница 8: ... have a 3 5mm stereo jack on one end and two Phono Cinch RCA connectors on the other These connectors are typically Red White with audio emitted on the red connector and video on the white Mixed Equipment 2 6 Lawmate Transmitter Airwave Receiver In the case where a lawmate transmitter is coupled to an airwave receiver for example the ImmersionRC Duo 2400 the mono audio from the lawmate transmitter...

Страница 9: ...t count and the ratio between good bad packets Note In most cases there is no cause for alarm if the pad packet rate is relatively high The telemetry protocol used by the EzTelemetry system sends several updates per second and the antenna tracker especially when the plane is a long distance out requires very few for a successful track If the bad packet count is high when the plane is close to the ...

Страница 10: ...ty of torque especially on the Pan axis for larger patch antennas Figure 4 ServoCity mount with 8dBi 2 4GHz antenna installed The SPG785 includes the highly recommended HS 785 HB sail winch servo The specifications for this servo may be found here http www hitecrcd com product_file file 35 HS 785HB pdf This is a high torque servo which provides 1260 degrees of rotation straight out of the box 2 10...

Страница 11: ...n only mount should suffice To improve this solution further use a diversity receiver with a second omnidirectional antenna or low gain patch with the patch facing straight up When flying closer to the antenna the diversity will prefer the omni or low gain patch When flying long range the pan mounted antenna with its narrower radiation pattern will be preferred 2 12 Servo Splines One last point on...

Страница 12: ...d then use the up down buttons to adjust the value A second carat will appear beside the numeric value during its adjustment 2 13 1 Description of Controls Each of the controls is described below Set Home Press when the GPS equipped plane is located beside the antenna This will give the antenna tracker one of the references that it needs before flight Note that this occurs automatically the first ...

Страница 13: ...ontrols define the pan and tilt servo angle respectively Pan us 360 Til t us 360 These are essentially the relationship between angle and the width of the servo pulse required to move the servo to that angle These controls only need to be setup once during the construction of the antenna pan tilt mount See the Setting Up The Servos section of this manual for an explanation of how to set these up a...

Страница 14: ...t Rev erse Allows the pan tilt axes to be reversed to adapt to different servo and mechanical linkage requirements Servo T e st Start a servo test this will walk the mount around its extremes in both axes Servo Spd Servo speed 1 fastest 10 slowest Normally the default setting of 1 is appropriate Use higher settings only with large heavy antennas Exit Exit the setup menu and return to the previousl...

Страница 15: ...enerally involves simply removing the screw from each servo s horn and rotating the horn until the antenna is in its zero pan zero tilt position 2 14 2 Servo Setup Step 2 Setting up servo reverses Once zero has been defined set each axis to a setting of 20 degrees and ensure that the servos move in the correct direction For Pan 20 degrees 20 degrees right of center For Tilt 20 degrees 20 degrees u...

Страница 16: ...n 2 1 630 degree option DDT500H Tilt Pan Reverse Yes Tilt Reverse No Pan us 360 450us Tilt us 360 4000us Tilt min 10 degrees or zero if possible without the tilt servo binding at 0 degrees Tilt max 90 degrees GWS SuperTec S125 for pan axis only Pan Reverse Yes Tilt Reverse Pan us 360 990us Tilt us 360 Tilt min Tilt max ...

Страница 17: ...h Point The number of satellites currently locked is also shown in the lower right corner The second page shows the audio levels currently being received along with an indicator showing Low OK or High The Decoder page shows the number telemetry packets decoded along with the error rate The Tracking Page shows the plane s current altitude above launch point distance from the launch point and the be...

Страница 18: ...n the direction in which the antenna tracking is facing may be directly entered into the menu into the Bearing Cal menu item As an example if the zero position of the antenna tracker points North West enter 45 degrees into the Bearing Cal menu Note that the range of this menu item is 180 thru 180 degrees Many compasses are marked from 0 thru 360 degrees so for values between 180 and 360 just subtr...

Страница 19: ...le memory and will be restored when power is next applied This will avoid the need for any home position or heading calibrations each time you fly 4 Replaying recorded telemetry data Once a flight has been recorded it may be replayed in order to test the antenna mount or just to impress your friends with your NASA class technology When choosing the recording playback device and its settings it is ...

Страница 20: ...20 ...

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