OAJATT655LEFRS/GMRS COMBINATION TRANSCEIVER

5/17 3. OPERATION 3.1 ICONS on LCD 1) VOX (Voice Activated Transmission) Indicator VOX icon appears when VOX is activated. 2) Key Lock Indicator Lock icon appears when the key lock is activated. 3) Large Segment Indicator Large Segment a) Indicates the channel number in use in normal mode. b) Function menu is displayed in function Mode in the following sequence : ( CH NOA/ SC / VO / Po/ Snd/ CAL/ bEP / rog/ tAL/ ViB ) 4) Small Segment Indicator Small Segment a) Displays the CTCSS tone option in the standby mode. The CTCSS option is shown in Hz. b) Displays the sub-menu in each menu. 3.1.2 Description of Button function 1. Power / Shift Function 1) Short Push - Press this button briefly to turn the unit on. - When Power is on (1) A momentary press of this button in the function edit mode is also used to shift to the other function edit menu. 2) Long Push ( Press and hold for more than 1.2 seconds) - Press this button for more than 0.3 second to turn the unit on. 6/17 - Press this button for longer than 1.5 seconds to turn the unit off. 2. Function / Key lock Function (1) Short push - Press this button briefly to enter function edit menu or to shift to next function edit menu. - Pressing of this button in last function menu allows you to return to the stand by mode. (2) Long Push - Press for longer than 1.5 seconds to activate or inactivate in standby mode. 3. Up Key - In the standby mode, pressing this briefly will increase volume. - In the function edit mode, pressing the button briefly will shift from the current option in each sub-menu to next option in the same sub-menu. 4. Down Key - In the standby mode, pressing this briefly will decrease volume. - In the function edit mode, pressing the button briefly will shift from the current option in each sub-menu to previous option in the same sub-menu. 5. Call / Monitor Key (1) Short Push 1) Press this button in the standby mode to call another party on the same channel. 2) Press this button in function Edit mode to shift to standby mode. 3) Press this button in VOX mode to stop transmitting for 10 seconds. (2) Long Push 1) Press this button for more than 1.5 seconds in the standby mode to make channel monitoring function on or off. 2) Press this button for more than 1.5 seconds in the function edit mode to shift to the standby mode. 3) Press this button for more than 1.5 seconds in scan mode not to scan the current channel again. 4) Press this button in VOX mode to stop transmitting for 10 seconds. 6. PTT button - Press this button firmly and speak into the built-in microphone. 7/17 3.2 Operation Method Basic Feature 1. Selectable 22 channel and 38 CTCSS 2. VOX function 3. Key Lock 3.2-1. Channel and CTCSS Code selection mode - Press the function button once in the standby mode to access a channel and CTCSS selection mode. The flashing channel number appears on the display. Press the Up or Down button to select the desired channel. - Press the Power/Shift button to select the CTCSS 2-Digit code position which flashes. Press the up or down button to select the desired sub-code. 3.2-2. VOX selection mode - Press the function key in the Scan selection mode to access VOX selection mode and VOX option appears flashing. - When VOX function operates, VOX icon appears. - Press the Power/Shift button in VOX option mode to access the VOX recovery time selection mode. Select the desired VOX recovery time out of 1,2,3,5 seconds by using the up or down button. - This features allows the response time characteristics of the VOX function to be precisely adjusted to suit individual needs. - When the unit is receiving a signal, VOX function does not operate. - To turn off VOX feature, enter the VOX selection mode and then select OFF. . 4. ADJUSTMENT 4-1. Frequency synthesizer a) After connecting the power meter and dummy load(50 ohm), join the antenna connector of ATT-655LE with above equipment. b) Check the voltage between RF BOARD BT POINT & GND in digital volt meter c) Then set the low channel of ATT-655LE the lowest frequency. d) After pressed PTT key of ATT-655LE, check if the lowest frequency of Tx channel to DC 1.5V in the voltage of test point(VT). e) After releasing the PTT key of ATT-655LE, check if the highest frequency of Rx channel is within DC 1.0V in the voltage of test point(VT).

Model ATT655LE, ATT650CM, & ATT650CMB 22 Channel GMRS Transceiver with 38 CTCSS Sub-channels Owner’s Manual Product Description The ATT655LE, ATT650CM, & ATT650CMB General Mobile Radio Service(GMRS) radio has been designed to allow you to communicate with both GMRS and FRS radios. This is a sophisticated multi-channel, battery powered, 462 MHz/467 MHz FM two-way radio. The controls and accessories are easy to use and the ATT655LE, ATT650CM, & ATT650CMB can be used to communicate with other FRS radios on channels 1 to 14, and 8 GMRS channels. Also, the ATT655LE, ATT650CM, & ATT650CMB has 38 CTCSS sub-channel tones to provide clearer communication without hearing unwanted signals. Package Contents Model ATT655LE: 1. GMRS Radio Unit 2. Detachable Belt-clip 3. Neck Strap 4. Owner’s Manual 5. Alkaline Batteries (4) Model ATT650CMB: 1. GMRS Radio Unit 2. Detachable Belt-clip 3. Neck Strap 4. Owner’s Manual 5. AC Adapter Model ATT650CM: 1. GMRS Radio Unit 2. Detachable Belt-clip 3. Neck Strap 4. Owner’s Manual General Features 1. Up to 5 Mile Range 2. Dual output power (1.5 watts GMRS and 1/2 watt for FRS channels) 3. 38 privacy channels 4. Push To Talk button 5. 3 level voice activation (VOX): Hands free operation with optional accessories 6. Call Function. 7. Audible low battery alert 8. LCD backlit display 9. Volume up/down 10. Monitor function key 11. Key Lock function 12. Auto Power Save circuitry 13. Auto Squelch 14. Keypad Beep Tone 15. Battery source (4 AAA) 16. Jack for headset and wall battery charging Functions and controls 1. Push-to-talk button [PTT] 2. Call / Monitor button [M] 3. Neck strap holes 4. Antenna 5. Up button/volume control [] 6. Down button/volume control [] 7. Speaker 8. Display panel 9 On/Off/Enter button [ ] 10.Function button [F] 11.Internal Microphone 12.External Headset & Charging Jack [Ω] 13. Belt clip (detachable) 14. Battery Cover FCC WARNING Replacement or substitution of transistors, diodes or other parts of a unique nature, with parts other than those recommended by the manufacturer, may cause a violation of the technical regulations of Part 15 of FCC Rules. SAFETY INFORMATION Your wireless hand-held portable transceiver contains a low power transmitter. When the PTT button is pushed it sends out radio frequency (RF) signals. The device is authorized to operate at a duty factor not to exceed 50%. In August 1996, the Federal Communications Commissions (FCC) adopted RF exposure guidelines with safety levels for hand-held wireless devices. Important: To maintain compliance with the FCC’s RF exposure guidelines hold the transmitter at least 4 - 6 inchs (10 – 15 centimeters) from your face and speak in a normal voice, with the antenna pointed up and away. If you wear the handset on your body while using the headset accessory, use only the AT&T supplied belt clip for this product and ensure that the antenna is at least 1 inch (2.5 centimeters) from your body when transmitting. Use only the supplied antenna. Unauthorized antennas, modifications, or attachments could damage the transmitter and may violate FCC regulations. Normal Position: Hold the transmitter approximately 4 –6 inches (10 –15 centimeters) from your face and speak in a normal voice, with the antenna pointed up and away. Electromagnetic interference/compatibility The FCC requires that you be advised of certain requirements involving the use of this device. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment uses and can generate radio frequency energy, if not installed and used in accordance with the instruction, it may cause harmful interference to radio communications. However, there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception(which can be determined by turning the equipment off and on), the user is encouraged to correct the interference by one of the following measures: 1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver 3. Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. 4. Consult the manufacturer for technical assistance. Accessories To enhance the use of your ATT650/655 series GMRS transceiver, depending on model and included accessories, several other approved accessories such as headset, wall battery trickle charger, along with replacement neck strap, battery compartment door, and belt clip are available from KNG America. To order accessories, call KNG America’s Customer Service Department at 1-800 354-8785 during regular business hours. Order by the following part numbers to ensure accuracy and quick service. Item: Part Number: Headset: 702500 Wall Charger 702520 (110 VAC 50/60 Hz) Neck Strap 701230 Battery door 702240 Belt Clip 702250 Battery installation Each radio requires four ‘AAA’ size batteries. 1. Remove the battery cover by sliding it firmly downwards. 2. Following the polarity diagram inside the battery compartment, insert the batteries. 3. Replace the battery cover. IMPORTANT! Ensure that the batteries are installed correctly. Reversing the polarity may damage the unit. Do not mix old and new batteries. Do not mix alkaline, standard (carbon-zinc) or rechargeable Ni-MH batteries. Battery disposal Depleted batteries need to be disposed of in a way to not damage the environment. Check your local phone directory for recycling sites. Automatic Power Saver Mode Your ATT650/655 has a unique circuit designed to dramatically extend the life of its batteries. After 6 seconds of inactivity, the ATT650/655 will switch to Power Saver Mode. While in Power Saver Mode, the transceiver will remain ready to receive any incoming transmissions. It is aut…

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Timco Engineering, Inc. 849 NW State Road 45 PO Box 370 Newberry, FL 32669 FCC Request Applicant: J Communications Co., Ltd. FCC ID: OAJATT655LE Confirmation Number: EA276521 Reference Number: 23771 1. You have two power levels for GMRS. How is the power levels controlled? Please explain. The transmitter power levels are internally set by the microprocessor to low power on channels 8-14 and high power on other channels to comply with regulations on FRS and GMRS channels. Channels 1-7 are shared between GMRS (High) and FRS, channels 8-14 are exclusively FRS and only low power is selected, and channels 15-22 are for GMRS use only and high power is permitted. 2. Please provide the dBm power levels on pages 14 and 15 of the radiated spurious emissions measurements. See the following two pages. Timco Engineering, Inc. 849 NW State Road 45 PO Box 370 Newberry, FL 32669 2.1053 UNWANTED RADIATION: 95.635(b)(7) The tabulated Data shows the results of the radiated field strength emissions test. The spectrum was scanned from 30 to at least the 10th harmonic of the fundamental. This test was conducted per ANSI C63.4-1992. REQUIREMENTS: GMRS: HIGH 43 + 10log(1) = 43 dB LOW 43 + 10log(.9) = 43 dB TEST DATA: Low Power Emission Frequency MHz dBc Margin dB Generator dBm 462.60 0 0 19.5 925.2 62 19 -42 1387.9 ** ** 1850.5 ** ** 2313.2 61 18 -41 2775.8 ** ** 3238.4 45 2 -25 3701.1 ** ** 4163.7 ** ** 4626.4 ** ** High Power Emission Frequency MHz dBc Margin dB Generator dBm 462.60 0 0 20.5 925.2 ** ** 1387.9 ** ** 1850.5 ** ** 2313.2 62 19 -41 2775.8 ** ** 3238.4 45 2 -24 3701.1 ** ** 4163.7 ** ** 4626.4 ** ** ** Indicates measurements below our equipment capabilities and levels were 20 dB or more below the FCC limits.** Timco Engineering, Inc. 849 NW State Road 45 PO Box 370 Newberry, FL 32669 2.1053 UNWANTED RADIATION CONTINUED 95.635(b)(7) The tabulated Data shows the results of the radiated field strength emissions test. The spectrum was scanned from 30 to at least the 10th harmonic of the fundamental. This test was conducted per ANSI C63.4-1992. REQUIREMENTS: FRS: 43 + 10log(.3) = 38 dB Emission Frequency MHz dBc Margin dB Generator dBm 467.60 0 0 15 935.1 ** ** 1402.7 ** ** 1870.2 ** ** 2337.8 58 20 -43 2805.4 ** ** 3272.9 52 14 3740.5 ** ** -37 4208.1 ** ** 4675.7 ** ** ** Indicates measurements below our equipment capabilities and levels were 20 dB or more below the FCC limits.** METHOD OF MEASUREMENT: The tabulated data shows the results of the radiated field strength emissions test. The spectrum was scanned from 30 to at least the tenth harmonic of the fundamental. This test was conducted per TIA/EIA STANDARD 603 using the substitution method. Measurements were made at the open field test site of TIMCO ENGINEERING, INC. located at 849 NW State Road 45, Newberry, FL 32669. Timco Engineering, Inc. 849 NW State Road 45 PO Box 370 Newberry, FL 32669 3. Please submit a revised Users Manual with the following information. There must be an informational insert inside the box (product package) that clearly informs the consumer (buyer/owner) when the radio is transmitting on GMRS frequencies, that operation on GMRS frequencies requires an FCC license and such operation is subject to additional rules specified in 47 C.F.R. Part 95. The revised users manual has been uploaded to the FCC website. If you have any questions or need any more information, please feel free to contact me. Best regards, Summer M. Hester

13/17 5. DESCRIPTION OF RADIO CIRCUIT 5-1. Frequency synthesizer Frequency synthesizerconsists of VCO, loop filter and RFIC. RFIC includes MIX,IF, Compander and PLL. Frequency synthesizer uses the PLL of thte RFIC. a) VCO VCO is composed of ONE VCO Oscillation circuit takes colpitts circuit using variable Diode. The VCO generates FRS frequencies and consists of L17, D5, C65, L19, C57, C70, R45, R44, R46, C71, C72, Q14, R47, C74, R48, Q15, L29. VCO control voltage through loop filter adjusts frequency and Microphone Signal through Modulation terminal makes modulation. N = VCO oscillation frequency / reference frequency If the desired frequency is 462.5625 MHz 1) TX : N = 462.5625 MHz / 0.00625 MHz = 74010 2) RX : N = [462.5625 MHz – 21.7 MHz] / 0.00625 MHz = 70538 b) PLL IC RFIC(PLL) is adjustable IC to produce the wished frequency which VCO provides through loop filter. It has internal counter using 21.25Mhz reference frequency to make 6.25kHz as reference Signal. VCO frequency from prescaled input is divided signal is compared with Reference signal phase in phase comparator. Built-in charger pump changes voltage (until two signals are in phase) and charged voltage supplies VCO through loop filter to produce the desired frequency. Frequency data associated with channel goes to PLL IC by CPU through CLOCK , DATA. PLL IC enables by strobe line of CPU. c) Loop Filter Loop filter is composed of C104,R77,C37,R78,C102,R113 and changes pulse from U3.46 to DC . And eliminates harmonic component in pulse. It helps VCO oscillate clearly as DC voltage is supplied into Varicap. 5-2. Receiver This is composed of Dual Conversion Super Heterodyne. First IF is 21.7Mhz. Local oscillator frequency is lower in 1’st IF than Rx frequency. It is called low side injection. Second IF is 450kHz . 2’nd local oscillator Frequency comes to 21.25MHz. a) Rx / Tx Conversion Circuit Rx signal goes to Rx / Tx conversion circuit through FIXED antenna connector, low pass filter (L1,L2,L3,C6,C1,C2,C3,C4,C5) and receiver resonance circuit composed of L4,C24. When transmitting, Voltage through R1,L5,D1 supplies,D2 of receive input is short and Tx is on condition. When PIN diode is off in condition of Rx, C28,Q6 14/17 L12,C87 resonate serially and make impedance matching at receiver band- pass filter.(FL1,FL2) b) Front End Front-end has Q6 to provide a high sensitivity and low noise feature. It employs SAW filter as band pass filter to eliminate image frequency and to produce enough pass band by Q6 input and output. c) 1 st Mixer The receiver which has been amplifier in the RF front-end is provided to the base of the 1 st mixer Q7. The 1 st L/O signal provide from the VCO is supplied to the emitter of Q7 and Converted to the 1 st IF 21.7 MHz d) 1 st IF Filter The signal covered by Q7 to 21.7 MHz, the 1 st frequency, change its impedance through C48, and then is infused to the fundamental MCF which has the center frequency of 21.7 MHz and the width of +/- 3.75 KHz. Here, the signal reduces the image and other unwanted signal for the 2 nd IF , and changes its impedance again through the C126. This filtered signal flows in the 1 st IF amplifier of RFIC(U3). e) 2 nd Mixer, and IF, FM Detect (U3) The receiver IF signal of 21.7 MHz, which has been infused to U3 is mixed with the 2 nd L/O converted to 450 KHz, the 2 nd IF frequency. The receiver signal converted to the 2 nd IF signal frequency passed through the FL3, the ceramic filter of 450 kHz again. The squelch circuit is composed to detect the noises from the received signal demodulate in the 40 th pin of the U3. For this purpose, the noise filter is using the OP amplifier inside the U3 f) CTCSS Detector(U2,U4) The 2 nd IF frequency comes from No.26 pin of U2,U4 and goes to MPU through the active filter having U2,U4 g) Audio Amplifier(U10) Demodulated audio signal enters to pin3 of AF IC (U10). It comes out to pin5 then, it reaches at speaker. 5-3. Transmitt When Tx develops with pressing PTT switch, VCO output amplifies through Q3,Q2,Q16,Q1,Q19 transmits by antenna through low pass filter. Tx RF signal produced from Tx VCO is amplified by Buffer Q3, Driver Q2,Q16 through C13, L9 and entered Q1,Q19 Power Transistor input terminal with final amplification. After this stage, the signal is emitted at antenna through 50matching circuit to low pass filter (L3,L2,L1,C6,C5 C4,C3,C2,C1) to eliminate harmonic. a) Audio Modulation and Audio Amplification Audio signal produced by external or internal microphone, limits amplification, low pass filter by IC U4. 15/17 Max. Frequency modulation deviation is adjusted by U4,VR1 keeps noise and audio from entering to VCO at time of Tx. Audio modulation and Audio Amplification has characteristic of 6/OCT pre-emphasis by U4.

7/17 3.2 Operation Method Basic Feature 1. Selectable 22 channel and 38 CTCSS 2. VOX function 3. Key Lock 3.2-1. Channel and CTCSS Code selection mode - Press the function button once in the standby mode to access a channel and CTCSS selection mode. The flashing channel number appears on the display. Press the Up or Down button to select the desired channel. - Press the Power/Shift button to select the CTCSS 2-Digit code position which flashes. Press the up or down button to select the desired sub-code. 3.2-2. VOX selection mode - Press the function key in the Scan selection mode to access VOX selection mode and VOX option appears flashing. - When VOX function operates, VOX icon appears. - Press the Power/Shift button in VOX option mode to access the VOX recovery time selection mode. Select the desired VOX recovery time out of 1,2,3,5 seconds by using the up or down button. - This features allows the response time characteristics of the VOX function to be precisely adjusted to suit individual needs. - When the unit is receiving a signal, VOX function does not operate. - To turn off VOX feature, enter the VOX selection mode and then select OFF. . 4. ADJUSTMENT 4-1. Frequency synthesizer a) After connecting the power meter and dummy load(50 ohm), join the antenna connector of ATT-655LE with above equipment. b) Check the voltage between RF BOARD BT POINT & GND in digital volt meter c) Then set the low channel of ATT-655LE the lowest frequency. d) After pressed PTT key of ATT-655LE, check if the lowest frequency of Tx channel to DC 1.5V in the voltage of test point(VT). e) After releasing the PTT key of ATT-655LE, check if the highest frequency of Rx channel is within DC 1.0V in the voltage of test point(VT). 8/17 4-2. Transmitter a) Connect EUT & measure equipment according to block diagram below. b) Connect DC 6.0V voltage preset to EUT. c) Connect ‘Power Meter’ and ‘Dummy Load ( 50 d) Adjust Tx frequency according to trimming trimmer VC1. e) Connect AF Oscillator to mic terminal for conform modulation degree. f) Adjust the frequency of AF Oscillator to 1 kHz and adjust AF level Should be 100mV. g) Checking Oscilloscope and Modulation Meter. Max deviation should be in ±2.5 kHz. Power Supply EUT AF Oscillator Modulation Meter Oscillator AV VTVM Distortion Meter Spectrum Analyzer Frequency Counter Power Meter Dummy Load 9/ 17 4-3. Transmitter Test a) Output Power Test Power(DC 6.0V) should be Max.1W(ERP) b) Audio Response Connect AF oscillator to Mic terminal and then firm the audio level that doesn’t distortion the wave of Oscilloscope in the frequency range, 300Hz~ 3kHz. Check the audio level for 300Hz~ 3kHz based on frequency standard,1kHz. c) Modulation Degree Test 1) Connect AF oscillator to the MIC terminal and then adjust the level to 100 2) Measure the Oscilloscope wave and the point needle of Modulation Meter after pressing PTT key. 3) Sweep gradually the frequency of AF Oscilloscope from 300Hz to 3kHz. 4) At this time, the point needle of Modulation Meter should be in ±5 kHz d) Spectrum Test 1) Antenna is 50and attenuation degree should be 20 more. 2) Observe the Spectrum with pressing PTT key. The harmonics should be less –36 ~ -30m than carrier. 4-4. Receiver a) Preparation 1) Adjust the power supply to DC 6.0V. 2) Adjust Voltage level to 0.5Vrms(8load) after power on. b) Connection method c) The Conform of Rx sensitivity 1) Adjust SSG to channel frequency. SSG EUT 4Load Oscilloscope AV VTVM Distortion Meter SINAD Meter Power Supply 10/17 2) Adjust modulation frequency , 1Khz to modulation degree, 3kHz. 3) After adjusting the frequency of SSG to channel frequency, RF level sets to –47dBm. d) The Conform of Squelch sensitivity 1) Set the standard channel. 2) In squelch mode, SQ volume VR2 must be turned counterclockwise. 3) After adjusting SSG to channel frequency, the RF level of SSG is set On SINAD 10~6. 4-5. Receiver Test a) Rx sensitivity test SSG should be adjusted to 12 of SINAD point needle seeing wave of Oscilloscope as SSG sets in 1kHz frequency deviation. At this time , normal RF level is –110 ~ -107dBm. b) Audio Distortion Test 1) SSG should be adjusted like way of point “a)” and RF level sets to -47 dBm. 2) Adjust to 0.7Vrms(4load) seeing Audio wave. 3) Read the needle of Distortion Meter (Normal condition would be less Then 5% distortion) c) Squelch Test After RF level of SSG should be set to the least level, RF level should be Gradually increased until speaker makes audio sound. At this point, check RF level (Check if the SINAD is 10~6). 4-6. Symptoms, Check point & Correction a) Diagnosis method 1) Check each switch to work well. 2) Check voltage of battery. 3) Problem develops from transmitter or receiver? b) Troubleshooting 1) Transmitter -. Power key is on condition but does not work. Battery could completely discharge. Battery cell twist .. Touch problem come between Battery and Radio. -. Fail to transmit. 11/17 Run out of battery or charge problem. Fault of PTT key. Fault of Q1,Q19,Q2.Q16,Q3 -. Transmitter works but frequency is unmatched Out of order in frequency synthesizer. Out of order in X-tal frequency(X2) -. Audio does not sound (Tx power and Tx frequency are normal) Problem of microphone or mic connector. -. Tx is set when switch is on Tx switch(PTT) problem. 2) Receiver -. Rx does not work Speaker line open problem or connector problem. Receiver power circuit problem. Audio amplifier Base band IC U10 problem. -. Only noise sound IF IC U3 problem. VCO circuit problem. -. Rx sensitivity is weak Antenna mounting problem. Receiver front-end circuit problem. Local oscillation frequency deviation. -. Squelch does not work 12/17 IF IC U3 problem. Control logic circuit problem.

APPLICANT: J COMMUNICATIONS CO., LTD. FCC ID: OAJATT655LE REPORT #: J\Jcom_OAJ\656KT2\656KT2TestReport.doc TABLE OF CONTENTS TABLE OF CONTENTS LIST APPLICANT: J COMMUNICATIONS CO., LTD. FCC ID: OAJATT655LE TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED PAGE 3......RF POWER OUTPUT PAGE 4......MODULATION CHARACTERISTICS PAGE 5......AUDIO FREQUENCY RESPONSE GRAPH PAGE 6......MODULATION LIMITING GRAPH – 300Hz PAGE 7......MODULATON LIMITING GRAPH – 1000Hz PAGE 8......MODULATION LIMITING GRAPH – 3000Hz PAGE 9......AUDIO LOW PASS FILTER GRAPH PAGE 10.....OCCUPIED BANDWIDTH PAGE 11.....OCCUPIED BANDWIDTH PLOT PAGE 12.....OCCUPIED BANDWIDTH PLOT - CW PAGE 13.....SPURIOUS EMISSIONS AT ANTENNA TERMINALS PAGE 14.....UNWANTED RADIATION GMRS PAGE 15.....UNWANTED RADIATION FRS PAGE 16.....METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 17.....FREQUENCY STABILITY PAGE 18-21..LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........FCC ID LABEL SAMPLE EXHIBIT 2.........SKETCH OF LABEL LOCATION EXHIBIT 3.........EXTERNAL PHOTO – FRONT VIEW EXHIBIT 4.........EXTERNAL PHOTO – REAR VIEW EXHIBIT 5.........INTERNAL PHOTO – COMPONENT VIEW EXHIBIT 6.........INTERNAL PHOTO – COPPER VIEW EXHIBIT 7.........BLOCK DIAGRAM EXHIBIT 8.........SCHEMATIC EXHIBIT 9.........USERS MANUAL EXHIBIT 10........CIRCUIT DESCRIPTION EXHIBIT 11........TUNING PROCEDURE EXHIBIT 12........TEST SET UP PHOTO APPLICANT: J COMMUNICATIONS CO., LTD. FCC ID: OAJATT655LE REPORT #: J\Jcom_OAJ\656KT2\656KT2TestReport.doc Page 1 of 21 GENERAL INFORMATION REQUIRED FOR CERTIFICATION 2.1033(c)(1)(2) J COMMUNICATIONS CO., LTD. will manufacture the FCCID: OAJATT655LE GMRS/FRS COMBINATION TRANSCEIVER in quantity, for use under FCC RULES PART 95. J COMMUNICATIONS CO., LTD. 124-4 OJEON-DONG, UIWANG-CITY KYUNGKI-DO KOREA 2.1033 (c) TECHNICAL DESCRIPTION 2.1033(c)(3) Instruction book. A draft copy of the instruction manual is included as EXHIBIT 9. 2.1033(c) (4) Type of Emission: 10K5F3E 95.631 Bn = 2M + 2DK M = 3000 D = 1.75K Bn = 2(3000)+2(2250) = 10.5K GMRS Authorized Bandwidth 20.0 kHz 2.1033(c)(5) GMRS Frequency Range: 1. 462.5500 13. 462.7000 95.621 2. 462.5625 14. 462.7125 3. 462.5750 15. 462.7250 4. 462.5875 16. 467.5500 5. 462.6000 17. 467.5750 6. 462.6125 18. 467.6000 7. 462.6250 19. 467.6250 8. 462.6375 20. 467.6500 9. 462.6500 21. 467.6750 10. 462.6625 22. 467.7000 11. 462.6750 23. 467.7250 12. 462.6875 2.10311c)(6)(7) The Maximum Output Power Rating: GMRS – HIGH 1 Watt LOW .9 Watts FRS - .3 Watts FRS Authorized Bandwidth 12.5 kHz 2.1033(c)(5) FRS Frequency Range: 1. 462.5625 8. 467.5625 95.627 2. 462.5875 9. 467.5875 3. 462.6125 10. 467.6125 4. 462.6375 11. 467.6375 5. 462.6625 12. 467.6625 6. 462.6875 13. 467.6875 7. 462.7125 14. 467.7125 MHz APPLICANT: J COMMUNICATIONS CO., LTD. FCC ID: OAJATT655LE REPORT #: J\Jcom_OAJ\656KT2\656KT2TestReport.doc Page 2 of 21 2.1033(c)(6)(7) Power Output shall not exceed 0.50 Watts effective 95.639 radiated power. There can be no provisions for 95.649 increasing the power or varying the power. 2.1033(c)(8) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY FOR LOW POWER SETTING INPUT POWER: (6.0V)(.210A) = 1.26 Watts FOR HIGH POWER SETTING INPUT POWER: (6.0V)(.600A) =3.60 Watts 2.1033(c)(9) Tune-up procedure. The tune-up procedure is included as EXHIBIT # 11. 2.1033(c)(10) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT 8 of this report. The block diagrams are included as EXHIBIT 7 of this report. 2.1033(c)(11) A photograph or a drawing of the equipment identification label is included as exhibit No. 1. 2.1033(c)(12) Photographs(8"X10") of the equipment of sufficient clarity to reveal equipment construction and layout, including meters, labels for controls, including any view under shields. See exhibits 3-6. 2.1033(c)(13) Digital modulation is not allowed. 2.1033(c)(14) The data required by 2.1046 through 2.1057 is submitted below. APPLICANT: J COMMUNICATIONS CO., LTD. FCC ID: OAJATT655LE REPORT #: J\Jcom_OAJ\656KT2\656KT2TestReport.doc Page 3 of 21 95.639 Power Output shall not exceed 50.0 Watts effective radiated power. There can be no provisions for 95.649 increasing the power or varying the power. 2.1046(a) RF power is measured by the substitution method as outlined in TIA/EIA - 603. With a nominal battery voltage of 6.0 V, and the transmitter properly adjusted the RF output measures: OUTPUT POWER: GMRS: HIGH 1 Watt ERP LOW 0.9 Watts ERP FRS: 0.3 Watts ERP 2.1046(a) RF power output. The test procedure used was TIA/EIA-603 S2 APPLICANT: J COMMUNICATIONS CO., LTD. FCC ID: OAJATT655LE REPORT #: J\Jcom_OAJ\656KT2\656KT2TestReport.doc Page 4 of 21 2.1047(a)(b) Modulation characteristics: AUDIO FREQUENCY RESPONSE The audio frequency response was measured in ac- cordance with TIA/EIA Specification 603. The audio frequency response curve is shown on the next page. The audio signal was fed into a dummy microphone circuit and into the microphone connector. The input required to produce 30 percent modulation level was measured. See Page 5 of report. 2.1047(b) Audio input versus modulation The audio input level needed for a particular per- percentage of modulation was measured in accor- dance with TIA/EIA Specification 603. The audio input curves versus modulation are on the following pages. Curves are provided for audio input frequen- cies of 300, 1000, and 3000 Hz. See Pages 6,7 & 8 of report. 95.637 Post Limiter Filter Each GMRS transmitter, except a mobile station transmitter with a power of 2.5Watts or less, must be equipped with an audio low pass filter. At any frequency between 3 & 20 kHz the filter must have an attenuation of 60log (f/3) greater than the attenuation at …

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