IFHRANGER2NAR/C Transmitter

Manual for Hitec Ranger 2N Welcome to the exciting world of R/C Modeling Thank you for purchasing the Ranger 2N, two channel, AM radio system. The Ranger 2N is ergonomically designed using the finest components availible and engineered to provide years of trouble-free service. Look for the complete line of entry level, sport and competition quality Hitec radio systems, servos, receivers, speed controls and battery chargers at your favorite hobby dealer. Do a lay-out diagram of the 2N showing all the Features, switch positions and functions. Set-up and installation of your new Ranger 2N Please read the following section carefully before attempting to install the Ranger 2Z system. BATTERY INSTALLATION 1. The transmitter requires eight and the receiver battery pack needs four AA size batteries. These can be Alkaline or Ni-cad cells. If you choose to install Ni-cad batteries, the optional CG-25A Hitec overnight wall charger can be used to re-charge them. 2. When loading the batteries make sure the receiver and transmitter switches are in the “off” position. 3. Open the battery door in the back of the transmitter by squeezing the tab on the bottom of the battery door and lifting up. 4. Load batteries into the appropriate slots, taking care to install according to the proper polarity. 5. Replace the battery door and turn the power “on”. If the batteries are fresh and charged, the green L.E.D. will be lit. Should the battery power drop to an unacceptable level, the red L.E.D. will flash, warning the user of impending failure. At this point, replace the alkaline cells or charge the batteries if they are Ni-cads Show battery loading drawing to represent the 2N battery installation RADIO SYSTEM INSTALLATION When installing the system in the model of your choice, please follow the detailed instructions found in the model kit. 1. Install the receiver to protect it from vibration and potential crash damage. 2. Typically one servo will be used for the steering and the other servo will be used to operate a mechanical speed control, or not used at all and an optional electronic speed control will be used. 3. If your vehicle is electric, there will be a proportional speed control you will wish to use. If your speed control is mechanical, it will require a servo to operate it. The battery and switch harness found in the kit must also be used to provide the receiver with power. 4. Should your model use an electronic speed control that has the option of the B.E.C. circuit (battery eliminator circuit), this feature will eliminate the receiver battery and use the motor battery to feed the receiver and servos through the speed control. 5. Please refer to the instructions that accompany your electronic speed control for installation. Show drawing of the standard installation layout as in Ranger 2Z manual OPERATION CHECK 1. Plug the switch harness and servo connectors into the proper slots. The connectors are polarized, so they should fit into the receiver only in the proper way. NEVER USE EXCESSIVE FORCE TO PLUG IN OR PULL OUT CONNECTORS. 2. Always turn the transmitter power switch “on” first, before the receiver switch to avoid damaging your equipment. 3. Move the trim levers to the “neutral” position 4. Check to see the servos move in the proper direction when the joysticks are moved. If you wish to change the direction of rotation, use the servo reversing switches on the front of the radio. 5. If you wish to have more forward throttle stick movement, push down the neutral position adjustment lever, this will give 30% more forward movement. Show drawing of Neutral position adjustment lever. HELPFUL HINTS Antenna Both the transmitter and the receiver antenna must be fully extended when in use. Do not cut off any excess receiver antenna wire or bundle it up, this will cut down on the operating range of the system. Water, Dust and Fuel Take suitable measures to protect your system from water, dust, oil and fuel. Servo Linkage Install your linkages to be free from binding and slop. If you hear severe “humming” from the servo it is an indication the servo is working too hard and the geometry of the linkage should be adjusted. Throttle Ratchet The spring mechanism on the throttle stick may be disconnected and an optional ratchet part # 58314 is available to fit on the throttle gimbal to facilitate a ratchet effect with detents.

Hitec RCD Inc. FCC ID: IFHRANGER2NA Correspondence number 8917 FCC question followed by response: 1.) Please update grant to show Power Listed is ERP and grant note RC: This transmitter is approved for use only in the Radio Control Service. This is not approved for general use as an RF link of for use in any other service. Unit may not include a plug-in crystal with external access to the user. Response: The Grant has been revised accordingly. 2.) Please indicate how the restrictions for external crystal as contained in Section 95.645(b) are satisfied. Response: The applicant has stated that “In the production transmitters, the crystal and cover will be glued in place.” 3.) Why the internal photos do not show the crystal? Response: Two new internal photographs have been submitted. These photos show the crystal. 4.) Please submit a statement in the Users Manual that show compliance with Section 95.653. Response: The applicant has stated that the following statements will be placed in the manuals: Changing Frequency Changing the crystal to avoid conflicts with others is possible where permitted. Check your local rules before doing so. In the US, the FCC prohibits the changing of transmitter crystals except by a Manufacturer Authorized service center. This change will occur on the following pages: Ranger 2N Page 7 HFM-4-72 and HFS-72 Royal EVO Page 66 Aggressor FM Page 6

Front View Top View Bottom View Back View, w/batteries Back View, w/o batteries

FCC Identification FCC ID: IFHRANGER2NA Canada: Ranger 2N HITEC MADE IN KOREA

Internal, Circuit Board Internal, Circuit, Component Side Internal, Rear Case

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 Spectrum analyzer and a short-range pick-up antenna, look for 75MHz signal with sufficient scan width to see 30-150 MHz spurious. 3. Adjust T1, T2, T3, T4 (75MHz), and T2, T4, T5 (27MHz only) for maximum output at operating frequency and minimum output at any harmonics. 4. Repeat step 6. 5. Check for minimum emissions from 30 to 760 MHz.

ENGINEERING STATEMENT For Type Certification of Hitec RCD, Inc. Model: Ranger 2N FCC ID: IFHRANGER2NA 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 Ranger 2N 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 Ranger 2N transmitter in accordance with Part 2, Subpart J of the FCC Rules. The Ranger 2N 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: IFHRANGER2NA 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. 6k00A1D emission b. Frequency range: 75.41 – 75.99 MHz. c. Operating power of transmitter is fixed at the factory at 0.11 Watt – ERP(d). d. Maximum power permitted under Paragraph 95.635(b) of the FCC Rules is 750 milliwatts, and the Ranger 2N fully complied with those power limitations. e. The dc voltage and dc currents at final amplifier: Collector voltage: 11.6 Vdc Collector current: 132 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 Ranger 2N 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) = 0.11 Watts. C. MODULATION CHARACTERISTICS Occupied_Bandwidth (Paragraphs 2.989(i), and 95.635(b) of the Rules) Figure 1 is a plot, with unmodulated 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 1 kHz; 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 three bursts with a nominal 0.8 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: IFHRANGER2NA FIGURE 1 4 FIGURE 2 MODULATING WAVEFORM TIME DOMAIN 10 millisecond/division sweep OCCUPIED BANDWIDTH (Modulating Waveform) FCC ID: IFHRANGER2NA FIGURE 2 5 D. SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS (Paragraph 2.991 of the Rules) Since the Ranger 2N 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 Ranger 2N 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 fresh set of batteries with a terminal voltage under load of 12.1 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 m…

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