Eggtimer Rocketry Flight Computer Guide de l'utilisateur

Eggfinder GPS Tracker Users Manual TX Board Rev B4d RX Board Rev B4d © 2014 Eggtimer Rocketry All Rights Reserved

Using Your Eggfinder TX and RX Note: If you have the Eggfinder LCD receiver, see the Eggfinder LCD User’s Guide for instructions on using it with th

Assuming that your frequency is clear, connect your Eggfinder TX to the battery. The RED PWR LED should come on, indicating that you have power. Li

Satellite Mapping Software MapSphere GooPs (with Google Earth) The goal here is to find out where the LAST place that your Eggfinder ended up… th

*47 the checksum data, always begins with * As an example, some “real” records taken during a flight looked like this: $GPGGA,171634,

There are a number of map sources that you can choose from, we recommend Microsoft Live Search Maps - Aerial. Having a satellite map will help in

The rocket went relatively straight up, weathercocked into the wind slightly as is slowed down, drifted a little on the drogue chute, and drifted mo

Overlaying the road map instead of the satellite map… not very interesting here because it’s about 8 miles to the nearest road. Now, this is int

<?xml version="1.0" encoding="UTF-8"?> <gpx version="1.1" creator="MapSphere" xmlns="http://www

In this case: Latitude = 33.828873 (North), Longitude = -113.130500 (West) This is the last position that your Eggfinder reported, and should be

http://www.eggtimerrocketry.com/page16.php?view=preview&category=9&image=135 Once you have done that, you launch, and when you get the last

California Proposition 65 Warning WARNING: This product contains chemicals (lead) known to the State of California to cause cancer and birth defects

There’s pretty much no way that the rocket could be found without having a tracker. With the Eggfinder, we were able to walk right up to the landi

Using External Antennas with Your Eggfinder System With the included ¼ wave stick antennas, the Eggfinder system has been tested to over 8,000’ range

significantly more range. There are two basic types of commonly used directional antennas for rocketry applications, the panel antenna and the Yagi.

antenna, you will need a “N” connector. On the Eggfinder side, you will need a RP-SMA FEMALE connector on the cable (INSIDE threads with a JACK in th

Specifications: Eggfinder TX GPS: Maestro Wireless A2235H 48 track verification channels Low power, 35 mA typical operating, 5 mA standby Transm

Eggfinder Quick Reference Guide Eggfinder TX (Transmitter): Battery: 300 mAh (min.), 7.4V (2S) LiPo battery recommended Mounting Tips: • AVOID MOU

Important Regulatory Information This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this d

Hope RF HM-TRP Documentation (FCC test documentation) http://www.hoperf.com/upload/rf/HM-TRP-915(20dBm)-FCC.pdf FAA Regulations for Amateur Rocketr

An Introduction to Rocket Tracking Once upon a time it was a big deal for a model rocket to go out of sight, especially if it was a relatively large

MHz bands. These advances have made it possible to create GPS-based rocket tracking system for a fraction of what they would have cost 10 years ago.

• Follow NAR/TRA guidelines… if it’s too windy to fly, an Eggfinder isn’t going to help the situation. • Having a transmitter doesn’t mean that you

Mounting Your Eggfinder TX in a Rocket The Eggfinder TX board is about 3” long and .9” wide; with its “stick” antenna it’s about 6” long and .9” wid

Important points to note are: • The mounting holes are sized for a 4-40 screw. Since the Eggfinder TX is relatively lightweight, you can use a sel