IFHLAS46-75R/C Transmitter

Introduction Thank you for purchasing the Hitec Laser digital proportional radio control system. The Laser is loaded with features, easy to use and utilizes the latest in solid-state components for unsurpassed reliability and performance. It is important that you read and understand this manual before you attempt to operate your system. Table of Contents Introduction/ Table of contents........................................................ System Specifications................................................................... 1. Transmitter a. Features..................................................................... b. Layout...................................................................... c. Specifications............................................................... d. Servo Reversing............................................................. e. Servo A.T.V. (Adjustable Travel Volume)............................ f. Mixing....................................................................... g. Control Stick adjustment.................................................. h. Gimble tension adjustment................................................ i. Trim levers.................................................................. j. Dual Rates.................................................................. k. Landing Gear Switch...................................................... l. CH. 3 Throttle E.P.A. (End Point Adjustment......................... 2. Receiver a. Features...................................................................... b. Layout....................................................................... c. Specifications................................................................ d. Installation................................................................... 3. Servo a. Features....................................................................... b. Layout........................................................................ c. Specifications............................................................... d. Installation................................................................... 4. Charging Specifications a. Transmitter and Receiver battery....................................... 5. Operation a. Trainer system............................................................... b. Range checking............................................................ 6. Replacement Parts & Accessories............................................... 7. Product Service Information................................................... 8. Precautions........................................................................... 9. Final thoughts........................................................................ System Specifications 1. Transmitter A. Features • Ergonomically designed 4 or 6 channel FM transmitter. • High quality precision gimbals with adjustable stick length and tension. • Servo reversing on all channels. • ATV (Adjustable Travel Volume) CH 1 and CH 2. • V-tail and Elevon mixing. • Trainer system. (Hitec/Futaba compatible) • Premium 9.6v 600mah Nicad rechargeable battery pack. • Neck strap attachment. • Carrying handle. • Easy to read LED battery indicators. (Laser 4) • Transmitter battery voltage meter. (Laser 6) • EPA (End Point Adjustment) CH 3. (Laser 6) • Dual rates on CH 1 Ailerons and CH 2 Elevator (Laser 6 ) B. Layout • (Show drawing and point to features) C. Specifications • Power supply: 9.6V (8 cell) Nicad battery • Current drain: 150mA • Output power: 500mw • Modulation: PPM (FM) D. Servo Reversing • The Laser 4/6 FM transmitter is equipped with servo reversing on all channels. • Leaving the switch in the middle will cause the radio to work erratically so please make sure that the switches are all pushed to the furthest end. (Show Illustration of switches) E. Adjustable Travel Volume (A.T.V.) • CH 1 & CH 2 only. • This function adjusts the servos overall travel on CH 1 and CH 2. • The rate setting is adjustable from 30% to 110%. (Show Illustration of pots) F. Mixing • The Laser series transmitters are equipped with a switch that will mix ch.2 & ch.4 for V-tail vehicle or ch.1 and ch.2 for Elevon. (Show illustration of the switch and the nice illustration used in the Eclipse manual on pages 25 for v-tail and pg. 24 elevon function) G. Control Stick Adjustment • The length of the non-slip control sticks can be adjusted to suit the requirements of the user. (Show Illustration of stick like on pg. 6 of the Eclipse manual) H. Gimble Tension Adjustment • The unique open-stick assembly provides fully adjustable stick tension to adjust the “feel” of the sticks in your hands. • You may adjust the stick tension of your sticks to provide the “feel” that you like for flying. To adjust your springs, you’ll have to remove the rear case of the transmitter. Using a screwdriver, remove the six screws that hold the transmitter’s rear cover into position, and put them in a safe place. Gently ease off the transmitter’s rear cover and move it to the right side of the transmitter, carefully turning it as you would turn the page of a book. Now you’ll see the view shown in the illustration. Using a small Phillips screwdriver, rotate the adjusting screw for each stick for the desired spring tension. The tension increases when the adjusting screw is turned clockwise, and decreases for counterclockwise motion. When you are satisfied with the spring tensions, you may close the transmitter. Very carefully reinstall the rear cover. When the cover is properly in place, tighten the six screws. (Show Illustration) I. Trim Levers • The trim levers associated with each control stick are used to correct or (trim-out) the tracking of the vehicle. • (Caution) Make sure the trims will move the surface past neutral when moved to their extremes. This will assure you have adequate trim control. • After your vehicles first test run, note the positions of the control surfaces tha…

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Front View Right Side View Top View Left Side View Bottom View Battery Compartment Nicad Battery

Internal, Circuit Side Internal, Rear Case Internal, Component Side Internal, Wiring

OPERATIONAL DESCRIPTION The device is a 75 MHz, hand-held transmitter for R/C of model surface craft, typically having 20 cm separation (held with two hands in front of the body). The equipment employs a vertical polarized antenna directly mounted on the unit and meets Paragraphs 95.645, 95.647, 95.649, and the technical requirements established in the Report & Order in PR Docket 90-222.

Tuning Procedures 1. Attach 12.0 Vdc power supply 2. Using a Modulation Meter, adjust VR7 until proper modulation is displayed. 3. Using a Frequency Counter, Adjust VR8 until proper frequency is displayed. 4. Repeat steps 2 and 3 5. Using a Spectrum analyzer and a short-range pick-up antenna, look for 75MHz signal with sufficient scan width to see 30-150 MHz spurious. 6. Adjust T1, T2, T3, T4, and T5 for maximum output at operating frequency and minimum output at any harmonics. 7. Repeat step 6. 8. Check for minimum emissions from 30 to 760 MHz.

ENGINEERING STATEMENT For Type Certification of Hitec RCD, Inc. Model: Laser 6 FCC ID: IFHLAS46-75 I am an Electronics Engineer, a principal the firm of Hyak Laboratories, Inc., Springfield, Virginia. My education and experience are a matter of record with the Federal Communications Commission. Hyak Laboratories, Inc. has been authorized by Hitec RCD, Inc., to make type certification measurements on the Laser 6 transmitter. These tests were made by me or under my supervision in our Springfield laboratory. Test data and other documentation required by the FCC for type certification are included in this report. It is submitted that the above mentioned transmitter meets FCC requirements and type certification is requested. ______________________________ Rowland S. Johnson Dated: October 5, 2001 A. INTRODUCTION The following data are submitted in connection with this request for type certification of the Laser 6 transmitter in accordance with Part 2, Subpart J of the FCC Rules. The Laser 6 is a low power, non-voice, transmitter intended for remote control of model surface craft in the 75 MHz band. The equipment employs a vertical polarized antenna directly mounted on the unit and meets Paragraphs 95.645, 95.647, 95.649, and the technical requirements established in the Report & Order in PR Docket 90-222. B. GENERAL INFORMATION REQUIRED FOR TYPE CERTIFICATION (Paragraph 2.983 of the Rules) 1. Name of applicant: Hitec RCD, Inc. 2. Identification of equipment: IFHLAS46-75 a. The equipment identification label is submitted as a separate exhibit. b. Photographs of the equipment are submitted as separate exhibits. 3. Quantity production is planned. 4. Technical description: a. 6k00F1D emission b. Frequency range: 75.41 – 75.99 MHz. c. Operating power of transmitter is fixed at the factory at 0.21 Watt – ERP(d). d. Maximum power permitted under Paragraph 95.635(b) of the FCC Rules is 750 milliwatts, and the Laser 6 fully complied with those power limitations. e. The dc voltage and dc currents at final amplifier: Collector voltage: 10.0 Vdc Collector current: 152 mA f. Function of each active semiconductor device: See Appendix 1. g. Complete schematic diagram is submitted as a separate exhibit. h. Draft instruction book is submitted as a separate exhibit. 2 B. GENERAL INFORMATION (continued) i. The transmitter tune-up procedure is submitted as a separate exhibit. j. A description of circuits for stabilizing frequency is included in Appendix 2. k. A description of circuits and devices employed for suppression of spurious radiation and for limiting modulation is included in Appendix 3. l. Not applicable. 5. Data for 2.985 through 2.997 follow this section. 6. RF_Power_Output (Paragraph 2.985(a) of the Rules) Since the Laser 6 has an immediately attached, integral antenna, no antenna port exists. Power was determined by substitution comparison. Assuming an ideal dipole (not the actual monopole) ERP(d) = 0.21 Watts. C. MODULATION CHARACTERISTICS Occupied_Bandwidth (Paragraphs 2.989(i), and 95.635(b) of the Rules) Figure 1 is a plot, with carrier at 0 dB Ref., of the sideband envelope of the transmitter taken with a Tektronix 494P spectrum analyzer. Modulation corresponded to conditions of 2.989(i) and consisted of the multiple pulses and synchronizing space normally used in radio control applications. Operator controls were adjusted for worst-case emission. The plot is within the limits imposed by paragraph 95.635(c). The horizontal scale (frequency) is 10 kHz per division and the vertical scale (Amplitude) is a logarithmic presentation equal to 10 dB per division. Resolution bandwidth was 300 Hz; video bandwidth was 100 kHz. Figure 2 is a plot from a Tektronix 494P spectrum analyzer with 2 mS/division sweep in the time domain of the modulated carrier. Modulation consisted of seven bursts with a nominal 0.9 mS duration at a nominal 50 Hz repetition rate. 3 FIGURE 1 OCCUPIED BANDWIDTH 95.635: (3) At least 25 dB on any frequency removed from the center of the authorized bandwidth by more than 50% up to and including 100% of the authorized bandwidth (4 to 8 kHz). (10) At least 45 dB on any frequency removed from the center of the authorized bandwidth by more than 100% up to and including 125% of the authorized bandwidth. (8 to 10 kHz) (11) At least 55 dB on any frequency removed from the center of the authorized bandwidth by more than 125% up to and including 250% of the authorized bandwidth. (10 to 20 kHz) (12) At least 56+10 log 10 (TP) dB on any frequency removed from the center of the authorized bandwidth by more than 250%. OCCUPIED BANDWIDTH FCC ID: IFHLAS46-75 FIGURE 1 4 FIGURE 2 MODULATING WAVEFORM TIME DOMAIN 10 millisecond/division sweep OCCUPIED BANDWIDTH (Modulating Waveform) FCC ID: IFHLAS46-75 FIGURE 2 5 D. SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS (Paragraph 2.991 of the Rules) Since the Laser 6 transmitter meets FCC Rules 95.645, there are no provisions for antenna terminal output measurements. Substitution of a suitable matching network and retuning to permit observations at 50 ohms would not be representative of normal operation. Accordingly data on radiated spurious emissions are included in lieu of antenna terminal conducted spurious emissions. E. MEASUREMENTS OF SPURIOUS RADIATION (Paragraph 2.993(a) (b) (2) of the Rules) Measurements of radiated spurious emissions from the Laser 6 were made with a Tektronix 494P spectrum analyzer using EMCO 3121C calibrated test antennas using substitution comparison. The transmitter and its integral vertical antenna were located in an open field 3 meters from the test antenna. Supply voltage was from a fully charged set of batteries with a terminal voltage under load of 10.2 Vdc. The transmitter and test antennas were arranged to maximize pickup. Both vertical and horizontal test antenna polarization were employed. Reference was power at the carrier frequency. The measurement system was capable of detecting signals 100 dB or more below the reference…

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