BBOFRS104FRS Transceiver

Nothing Operating Instructions for Your Cobra ® microTALK ® 2-WAY RADIO MODEL FRS 104 Guide d’utilisation du poste de radio ÉMETTEUR-RÉCEPTEUR MODÈLE FRS 104 microTALK ® de Cobra ® Instrucciones de uso del RADIO BIDIRECCIONAL MODELO FRS 104 Cobra ® microTALK ® Nothingcomes close to a Cobra ™ Rienn’est comparable à un Cobra ™ Nadase compara a Cobra ™ English, pages 1-8 Français, pages 9-16 Español, páginas 17-22 P R O D U C T F E AT U R E SENGLISHENGLISH 1 I N T R O D U C T I O N POWER BUTTON CHANNEL SELECT button belt clip CALL button VOLUME button LIGHT/MAX RANGEbutton battery compartment LOCK tab TALK button Antenna Product Features •TWO-WAY RADIO with up to a 2 mile (3 km) range • 14 CHANNELS • BATTERY SAVER circuitry • CALL ALERT • “ROGER BEEP” confirmation tone • AUTO SQUELCH • MAXIMUM RANGE extender • BACKLIT LCD display • BELTCLIP Making Life Easier and Safer People have found lots of convenient and helpful ways to use their microTALK ® radios. Over time, you’re bound to discover uses of your own. For example, you can... •stay in touch with others while hiking, bicycling, etc. •keep track of family and friends in a shopping mall •communicate between different floors of a building • talk with neighbors •check with traveling companions in another car •arrange a meeting spot at crowded public events Caring for Your microTALK ® Radio Your microTALK ® radio will give you years of trouble-free service if cared for properly. Here are a few suggestions: 1) Handle the radio gently, 2) Keep it away from dust, 3) Never put the radio in water or in a damp place and 4) Avoid exposure to extreme temperatures. Installing or Replacing Batteries 1.Pull down the LOCK tab to remove the battery compartment cover. 2 .I n s e rt four AAA batteries. (Always usehigh quality alkaline batteries.) Position batteries according to polarity markings. (NOTE: See page 8 for information about optional battery pack and desktop charger accessories.) 2 LOCKtab This device complies with part 15 of the FCC rules. Operation is subject to the condition that this device does not cause harmful interference. FCC Warnings:Replacement or substitution of transistors, regular diodes or other parts of a unique nature, with parts other than those recommended by Cobra ® , may cause a violation of the technical regulations of part 95 of the FCCRules, or violation of Type Acceptance requirements of Part 2 of the Rules. INDUSTRY CANADA NOTICE: Operation is subject to the following two conditions: 1)this device may not cause interference, and 2)this device must accept any interference, including interference that may cause undesired operation of the device. «IC» before the equipment certification number signifies that the Industry Canada technical specifications were met. It does not guarantee that the certified product will operate to the user’s satisfaction. O P E R AT I O N 4 ENGLISHO P E R AT I O N 3 ENGLISH Talking to Another Person 1.Press and hold the TALK button. 2.With the microphone about 2 inches (5 cm) from your mouth, speak in a normal voice. 3.Release the button when you’re finished talking and listen for a response. You cannot receive incoming calls while pressing the TALK button. “Roger Beep” Confirmation Tone Your listener will hear an audible tone when you release the TALK button. This alerts the other party that you are finished talking and it is OK for them to speak. Listening for a Response When you are finished talking: 1.Release the TALK button to receive incoming transmissions. Your microTALK ® is always in listening mode while the TALK or CALL buttons are not pressed. 2.Adjust the volume by pushing the VOLUME UP or VOLUME DOWN button. Illuminating the Display 1.Press and release the LIGHT/MAX RANGE button to illuminate the display for 10 seconds. Auto Squelch Your microTALK ® radio is equipped with Auto Squelch, which automatically shuts off weak transmissions and unwanted noise due to terrain, or conditions, or if you’ve reached your maximum range limit. TALK button Turning On Your microTALK ® Radio 1.Press and hold the ON/OFF POWER button for 2 seconds. A series of audible tones will indicate the radio is on. 2.Your microTALK ® is now in Standby mode, ready to receive transmissions. The radio is always in Standby mode except when the TALK or CALL buttons are pressed. Battery Low When battery power is low, the BATT LOW indicator will blink. Auto Battery Save Your microTALK ® radio has a unique circuit designed to extend battery life. If there are no transmissions within 10 seconds, the unit will automatically switch to Battery Save mode. This will not affect the unit’s ability to receive incoming transmissions. Selecting a Channel 1.With the radio on, select any of the 14 channels by pushing the CHANNEL SELECT button up or down (NOTE:Both radios must be tuned to the same channel to communicate.) Calling Another Person To alert another person that you are calling: 1.Press and release the CALL button. The other person will hear a 2-second ringing tone. You cannot send or receive transmissions during the 2-second call tone. V O L U M E U P / D O W N b u t t o n C H A N N E L S E L E C T b u t t o n LIGHT/MAX RANGE b u t t o n O N / O F F POWER button CALL b u t t o n O P E R AT I O N 5 ENGLISH Maximum Range Extender You can temporarily turn off Auto Squelch, allowing all signals to be received and extending the maximum range of your radio: 1.Press and hold the LIGHT/MAX RANGE button for 5 seconds. You will hear 2 beeps indicating that Maximum Range Extender is on. 2.To turn Maximum Range Extender off, press and hold the LIGHT/MAX RANGE button for 1 second, or change channels. microTALK ® Range Your microTALK ® radio has a range of up to 2 miles (3 km). Your range will vary depending on terrain and conditions. In flat, open country your radio will operate at maximum range. Buildings and foliage in the path of the signal can reduce the range. Dense foliage and hilly terrain will further reduce the signal. Remembe…

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FRS-104_blockdiagram.sch-1 - Wed Nov 21 21:15:34 2001

Front View Back View Side View

Battery Compartment PCB Back w/Shield PCB Back w/o Shield PCB Front w/Shield PCB Front w/o Shield

FRS-104_schematic_rev03.sch-1 - Fri Dec 28 16:40:23 2001

ENGINEERING STATEMENT For Type Certification of Cobra Electronics Corporation Model No: FRS 104 FCC ID: BBOFRS104 I am an Electronics Engineer, a principal in 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 Cobra Electronics Corporation to make type certification measurements on the FRS 104 transceiver. These tests made by me or under my supervision in our Springfield laboratory. Test data and documentation required by the FCC for Type Certification are included in this report. The data verifies that the above mentioned transceiver meets FCC requirements and Type Certification is requested. ______________________________ Rowland S. Johnson Dated: January 10, 2002 A. INTRODUCTION The following data are submitted in connection with this request for type certification of the FRS 104 transceiver in accordance with Part 2, Subpart J of the FCC Rules. The FRS 104 is a portable, battery operated, UHF, frequency modulated transceiver intended for 12.5 kHz channel family radio service applications in the 462.5625-467.7125 MHz band. It operates from a nominal 6.0 Vdc battery supply. MFR rated output power is 0.5 watts ERP. B. GENERAL INFORMATION REQUIRED FOR TYPE CERTIFICATION (Paragraph 2.983 of the Rules) 1. Name of applicant: Cobra Electronics Corporation 2. Identification of equipment: FCC ID: BBOFRS104 a. The equipment identification label is submitted as a separate exhibit. b. Photographs of the equipment are submitted as a separate exhibit. 3. Quantity production is planned. 4. Technical description: a. 11k0F3E emission b. Frequency range: 462.5625 - 467.7125 MHz. c. Operating power of transmitter is fixed at the factory at less than 0.5 W ERP. d. Maximum power permitted is 0.5 watts, and the FRS 104 fully complied with that power limitation. e. The dc voltage and dc currents at final amplifier: Collector voltage: 5.8 Vdc Collector current: 0.41 A f. Function of each active semiconductor device: See Appendix 1. g. Complete schematic diagram is submitted as a separate exhibit. h. A draft instruction manual is submitted as a separate exhibit. i. The transmitter tune-up procedure is submitted as a separate exhibit. 2 B. GENERAL INFORMATION (continued) 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. C. RF Power Output (Paragraph 2.985(a) of the Rules) The FRS 104 has a permanently attached built-in antenna without provisions for a coaxial connector. RF power output was determined by substitution. TABLE 1 Operating Freq., MHz Power watts into a dipole antenna 462.5625 0.49 D. MODULATION CHARACTERISTICS 1. A curve showing frequency response of the transmitter is shown in Figure 1. Reference level was audio signal output from a Boonton 8220 modulation meter with one kHz deviation. Audio output was measured with an Audio Precision System One integrated test system. 2. Modulation limiting curves are shown in Figure 2, using a Boonton 8220 modulation meter. Signal level was established with a Audio Precision System One integrated test system. The curves show compliance with paragraphs 2.987(b). 3. Figure 3 is a graph of the post-limiter low pass filter which provides a roll-off of 60Logf/3 dB where f is audio frequency in kHz. Measurements were made following EIA RS-152B with an Audio Precision System One integrated test system on the Boonton 8220 modulation meter audio output. 3 4. Occupied Bandwidth (Paragraphs 2.989(c) of the Rules) Figure 4 is a plot of the sideband envelope of the transmitter output taken with a Tektronix 494P spectrum analyzer. Modulation corresponded to conditions of 2.989(c)(1) and consisted of 2500 Hz tone at an input level 16 dB greater than that necessary to produce 50% modulation at 2791 Hz, the frequency of maximum response. Measured modulation under these conditions was 2.0 kHz. Emission designator: (2M + 2D) (2 x 3 kHz) + (2 x 2.5 kHz) = 11k0F3E 4 FIGURE 1 MODULATION FREQUENCY RESPONSE MODULATION FREQUENCY RESPONSE FCC ID: BBOFRS104 FIGURE 1 5 FIGURE 2 AUDIO LIMITER CHARACTERISTICS AUDIO LIMITER CHARACTERISTICS FCC ID: BBOFRS104 FIGURE 2 6 FIGURE 3 AUDIO LOW PASS FILTER RESPONSE AUDIO LOW PASS FILTER RESPONSE FCC ID: BBOFRS104 FIGURE 3 7 FIGURE 4 OCCUPIED BANDWIDTH ATTENUATION IN dB BELOW MEAN OUTPUT POWER Required On any frequency more than 50% up to and including 100% of the 25 authorized bandwidth, 12.5 kHz (6.25-12.5 kHz) On any frequency more than 100%, up to and including 250% of the 35 authorized bandwidth (12.5-31.25 kHz) On any frequency removed from the assigned frequency by more 43+10LogP = 40 than 250% of the authorized (P = 0.49) bandwidth (over 31.25 kHz) OCCUPIED BANDWIDTH FCC ID: BBOFRS104 FIGURE 4 8 D. MODULATION CHARACTERISTICS (Continued) The plots are within FCC limits. The horizontal scale frequency) is 10 kHz per division and the vertical scale amplitude) is a logarithmic presentation equal to 10 dB per division. E. SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS (Paragraph 2.991 of the Rules) The FRS 104 has a permanently attached antenna. There is no connector for an external antenna. Therefore, no antenna terminal conducted measurements were made. F. MEASUREMENTS OF SPURIOUS RADIATION Measurements of radiated spurious emissions from the FRS 104 were made by substitution with a Tektronix 494P spectrum analyzer using Singer DM-105 for the measurements to 1 GHz, and EMCO 3115 horn to 4.8 GHz. The transmitter was located in an open field 3 meters from the test antenna. Supply voltage was a power supply with a terminal voltage under load of 6.0 Vdc. The transmitter and test antennae were arranged to maximize pickup. Both vertical and horizontal test antenna …

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