MANUAL Transmitter, Pro & Lite Receivers, Long Range & Normal range Rev 1.0 Rev Date.
Indhold Foreword TSLRS ................................................................................................................................................. 3 Foreword Transmitter ....................................................................................................................................... 3 Technical Specs .................................................................................................................................................. 3 Tx700Pro ........
Compatibility TX-RX ........................................................................................................................................... 9 Compatible RC's ................................................................................................................................................. 9 Head Tracker.................................................................................................................................................... 10 Tx700Pro .............
Antenna setup ................................................................................................................................................. 23 Bad antenna position .................................................................................................................................. 24 Firmware upgrading ........................................................................................................................................ 25 Option Board for RX LR 7.01 .......
The antenna output is designed for 50 Ohm load; however the transmitter stage is specially protected and can handle full power at both open and shorted antenna. It is normal to perform range check with antenna removed and 500mW setting. Tx700Lite RF Output power: 500mW RF Output connector: SMA female RF Input: DIN 4 The Antenna output is designed for 50 Ohm load. The PPM input signal can be either constant frame repeat time, or variable, Positive or Negative polarisation.
DIN 4 pin female screw type for POWER and MAIN-PPM input Stereo Jack for Audio Demodulator Input, and Head-Tracker PPM input The top of the connector is Head-Tracker PPM input (shorted HT) The Ring of the connector is AUDIO input from the wireless video system receiver. Ground is common for both signals. Shielded cables are recommended to avoid cross talk.
Supply current at 20V (500mW x 3 = 1.5W / 20V = 0.075 Ampere) Supply current at 10V (500mW x 3 = 1.5W / 10V = 0.15 Ampere) Supply current at 6V (2000mW x 3 = 6W / 6V = 1 Ampere) Tx700Lite Supply voltage 5-25V for 500mW power Supply current at 20V (500mW x 3 = 1.5W / 20V = 0.075 Ampere) Supply current at 10V (500mW x 3 = 1.5W / 10V = 0.15 Ampere) TX BATTERY LIFE The TX unit draw about 1.5W as mentioned at 500mW out, to find the current it draw we use ohms law.
Physical Dimensions Tx700Pro Height: 32mm Width: 74mm Length: 100mm Weight: 280 gram Tx700Lite Height: 25mm Width: 55mm Length: 85mm Weight 128 gram Legal Information The radio system is using frequency hopping, random sequence with very short time slots. The time pr channel is only 15mS, which means it apply to the 10mW pr average channel regulation in EU and many other areas. This means the 500mW peak setting can be used legally without any radio amateur licence.
Binding in details The binding function stores the TX signal unique ID code and PPM frame rate and number of servos into the receiver; this must be done every time the number of servos is changed on the RC unit. (or another RC with PPM system) The binding process is the same on Tx700Lite. To bind: 1. Power off, Tx and Rx. 2. Hold down bind button on Tx. 3. Power up the Tx, (we assume right plane memory is recalled on your RC unit). 4.
Note: The text ID code next to it. If you need to create a take-over mission, then the two TX units must have the same ID code to be accepted by the RX. If you need to fly side by side with a friend, just be sure you use different ID code. After ID code change, a new bind must be performed. Output Power selection button Tx700Pro The 3 way transmit power switch is located near the antenna connector on the top, where it is most easy to access while in flight.
Head Tracker The Head tracker input must be 6 channels PPM. It accepts positive or negative polarization, variable or fixed frame rate auto detect and auto handle. Channel 5 and 6 are the two HT (PAN/TILT) signals. They are added after the used MAIN-PPM channels. In case the main PPM signal got 12channels in it, there are no free channels to use. Then the two HT signals will be merged into channel 10 and 11, leaving channel 12 free to use for the main PPM.
Tx700Lite With the Tx700Lite – the head tracker input is integrated in the cable 11
Compatible Head trackers The Fat Shark, M.I.G. Tracker, Magnetic Inertial Gyro Or any other type with the required signals, see Head Tracker section above. Option Board Tx700 Pro The extra add on board called Option-Board can be installed by the user. The extra features are: Firmware upgrade via USB connector. Both the TX main board, and the Option board CPU can be upgraded with this option board. Data Demodulator and PC USB interface, for UAV systems.
How to get best range Archived range is only the result of the wanted signal to noise ratio. Local noise emitters are the most common way to ruin good receiver’s capabilities to pick up weak signals at long range. The system got a transmitter to receiver calculated line of sight range of over 100km. We know at least one customer who actually performed a full flight over 100km out and back.
Known Limitations Landscape variations and noise pollution in the flight area is known to shorten the range of any wireless link. Use at least 1/10 of the distance as height. For example at 3 km/1.8mile, distance stays 300 meters/984 feet up, to get full range. The Tx700Pro with will provide you with a signal to 100km/62 miles range depending on power selection and on which receiver is used. This Tx700Lite with 500mW will provide you with a signal to 25 km/15.
Foreword Receivers Here you will find the information which is needed to make your receiver perform at the very best. Both the long range receivers and normal range receivers will be listed under each subject. Physical and technical specifications Rx700 Normal Range The receiver board: 26 x 54mm. Weight: 6.5 gr. (8.5 grams including wire) Sensitivity: -102dBm. Input supply voltage range: 4-10V. Servo signal pulse output: 3.3V positive.
Rx700 Long Range This receiver have improved input filter and makes it now even better attenuation for 900 - 1300 - 2400 video transmitters. This is virtually impossible to jam. The Rx700LR also have improved distance of the servo connector and now all 12 can be mounted at the same time and no bending or problems. The receiver have the following dimensions: Width: 34 mm. Length: 62 mm. including angled connector. Height: 10 mm. Weight: 16 gr.
Binding The binding function stores the Tx signal unique ID code and PPM frame rate and number of servos into the receiver; this must be done every time the number of servos is changed on the RC unit. (or another RC with PPM system). The binding procedure is explained on page 8. Failsafe foreword The push button on the top of the TX is used both for binding, and to store Failsafe into the receiver. When the button is pressed while the TX is powered on the unit is binding.
The procedure is as follows: The radio signal is lost - recall 1, recall 2, recall 3. Radio signal back, - recall 2, recall 1, live. It will run scan mode which means, if a good package is received while it is in recall 2 state, it will go directly to recall 1 and then back live. Each recall state take about 0.3 seconds then it recall the next state.
RSSI output The little extra PAD over the CH12 connector is the RSSI output and you the bottom pin row for ground. This is an analogue voltage that reveals how strong the signal is from the TX. Many OSD types can use this voltage to display a calibrated 0-100% readout on the screen display. The Min and Max voltages are a little bit different from RX to RX, so you must perform a new calibration if you swap a receiver in your system. Connectors Servo Look carefully at the connector pins and the PCB.
The data you get are: G: number of Good data packages received B: number of Bad data packages received F: number of Failsafe recalled Values are counted from RX power up and will be zeroed again at next power up, so it is possible to land, connect to a PC via serial port converter and see the values for the flight before you power off the RX. The serial debug can also be use full to test failsafe storing and recalling, it write in clear text what it is doing.
Special Features Configurations The receiver can be configured to do a few things other than normal. HOW to configure (if you don’t need to configure, just power it up as normal) POWER OFF connect a 2.54mm 2 pin jumper (a short circuit connection) on servo channel 6-7 (YES between the two signals, they are now shorted together) Power up the RX See LED D1 is lit, this one is closest to same side as ch6 Now you stored a permanent setting: PPM out even if you use 12channels.
Now you stored a permanent setting: servo ch 12 out, if you use 12channels. Power off, Remove jumper, Connect your servos, Test all works. if you use under 12ch, you will off course always get PPM out of the ch12 connector, after a setting change, or PPM timing change or number of channels assigned, you must always perform a bind, and store failsafe, and test all settings works. Channels on Normal Range Notice a channel 9 and 10 on the board if you wish to get more of you receiver.
Antenna setup The ground wire must be separated a bit from the coax. There are no rules of how much of a distance, but 3-5 cm is normally used. RX antennas always have to mount with a 90 degree from each other. With this setup there will be no lost spots. See this example with an airplane. - The antennas are the red lines.
Bad antenna position 24
Firmware upgrading Use the 6 pin female connector it is clearly marked with UPGRADE or FIRMWARE UPGRADE, note the arrow to pin 1 and also the upgrade text is also located closest to pin 1. Actually any USB interface with FTDI232 chipset can be used - the Arduino boot loader type or our own called TSLRS-USB. They both fit directly into this 6 pin row. First install FTDI virtual com port driver http://www.ftdichip.com/Drivers/VCP.htm Then download mcuboot original version (some users might find version 1.
Browse to the HEX file you got via email, using OPEN. Remember the TX hex is for TX unit, and the RX hex is for the RX.
Mcuboot now instruct you to cycle power supply, they means actually you POWER UP RX or TX unit NOW Now you should be connected to the "secret" boot loader program 27
Click Program and see on screen and status area checksum bytes After 7 sec your unit is upgraded. The Boot loader will exit and mcuboot will say Programming done, now check firmware is working and new features work as expected. You MUST read about the features of your new software so you know how to use it. You must expect to perform new bind and new store failsafe after an upgrade. Option Board for RX LR 7.
LED indicators The NR got one LED it simply indicates valid supply voltage. The LR got two LED’s one located near each antenna connector. The normal operation of the LED’s are during flight and installation to show what antenna signal is the strongest, since that is the selected signal. FAST Blinking LED during power up indicate search mode. FAST Blinking LED during flight indicates failsafe is recalled and search mode is now running.
Abbreviations Names often used on UHF LRS pages and when talking about radio control and video links and FPV. RC - Radio Control, remote wireless control of something RC unit - The radio control unit you hold in your hand, can be a Futaba, JR, Graupner, Multiplex and so on Servo - when connected to rudders/ailerons/elevator they steer a plane. Servo pulse - is a digital pulse width that hold position information, 1.5mS is centre position.
BNC - is the connector name/type used for the TX and Booster for my LRS, same connector is used on Ethernet systems. Booster - is an amplifier that will take radio signals and boost them up to a more powerful level.
servos SBEC - Switching Battery Eliminator Circuit, is a 5V-6V regulator switch mode type handles more input voltage and have lower loss RC Receiver Battery or Supply, is normally 4 or 5 NIMH cells providing 4.
FPV general trouble shooting guide Read this first and try some of this before asking around.
system is often several hundred MHz wide, even if they have a SAW, so 1300 and 1800 can jam it. a 2.4GHz video transmitter have first harmonic at 4.8GHz so it is no big problem with the harmonics, it is a known fact that most 2.4Ghz video transmitters are most likely better with most GPS units.
Vibrations is a normal problem for receivers and transmitters, their coils and crystals and filters have microphone behaviour, pack in foam and also avoid loud sound SWR a video transmitter with a badly matched antenna and/or badly grounded will have high frequency currents going on its signal and power cables.
A downlink diversity system also solves one other problem, fading and nulling, the most perfect diversity system would have 3 antennas to handle signals from any angle perfect, but the gain from doing this is often minimal and cost and complexity is big, a 2 antenna diversity is the most common compromise.
