K44408000144MHz FM Transceiver Model : TH-255A

INSTRUCTION MANUAL © B62-1981-00 (K, M) 09 08 07 06 05 04 03 02 01 00 144 MHz FM TRANSCEIVER TH-255A Thank You We are grateful you decided to purchase this Kenwood FM transceiver. Kenwood always provides Amateur Radio products which surprise and excite serious hobbyists. This transceiver is no exception. Kenwood believes that this product will satisfy your requirements for both voice and data communications. FeaTures • Compact design • Aluminum die-cast chassis • High output power (up to 5 W operation) • 100 memory channels or 50 channels with names • Long operation period with a Ni-MH battery pack (optional) Wri Ting ConvenTions FolloWed in This Manual The writing conventions described below have been followed to simplify instructions and avoid unnecessary repetition. Instruction Action Press [KEY] . Momentarily press [KEY] . Press [KEY] (1s) . Press and hold KEY for 1 second or longer. Press [F] , [KEY] . Press the [F] key to enter Function mode, then press [KEY] to access its secondary function. Press [KEY] + Power ON . With the transceiver power OFF, press and hold [KEY] while turning the transceiver power ON.  Notices to the User ◆ Government law prohbts the operaton of unlcensed rado transmtters wthn the terrtores under government control. ◆ Illegal operaton s punshable by fne and/or mprsonment. ◆ Refer servce to qualfed techncans only. Safety: It s mportant that the operator s aware of, and understands, hazards common to the operaton of any transcever. PrecaUtioNs • Do not charge the transcever and battery pack when they are wet. • Ensure that there are no metallc tems located between the transcever and the battery pack. • Do not use optons not specfed by kenwood . • If the de-cast chasss or other transcever part s damaged, do not touch the damaged parts. • If a headset or headphone s connected to the transcever, reduce the transcever volume. Pay attenton to the volume level when turnng the squelch off. • Do not place the mcrophone cable around your neck whle near machnery that may catch the cable. • Do not place the transcever on unstable surfaces. • Ensure that the end of the antenna does not touch your eyes. • When the transcever s used for transmsson for many hours, the radator and chasss wll become hot. Do not touch these locatons when replacng the battery pack. • Do not mmerse the transcever n water. • Always swtch the transcever power off before nstallng optonal accessores.  Turn the transcever power off n the followng locatons: • In explosve atmospheres (nflammable gas, dust partcles, metallc powders, gran powders, etc.). • Whle takng on fuel or whle parked at gasolne servce statons. • Near explosves or blastng stes. • In arcrafts. (Any use of the transcever must follow the nstructons and regulatons provded by the arlne crew.) • Where restrctons or warnngs are posted regardng the use of rado devces, ncludng but not lmted to medcal facltes. • Near persons usng pacemakers. • Do not dsassemble or modfy the transcever for any reason. • Do not place the transcever on or near arbag equpment whle the vehcle s runnng. When the arbag nflates, the transcever may be ejected and strke the drver or passengers. • Do not transmt whle touchng the antenna termnal or f any metallc parts are exposed from the antenna coverng. Transmttng at such a tme may result n a hgh-frequency burn. • If an abnormal odor or smoke s detected comng from the transcever, swtch the transcever power off mmedately, remove the battery pack from the transcever, and contact your Kenwood dealer. • Use of the transcever whle you are drvng may be aganst traffc laws. Please check and observe the vehcle regulatons n your area. • Do not expose the transcever to extremely hot or cold condtons. • Do not carry the battery pack (or battery case) wth metal objects, as they may short the battery termnals. • When operatng the transcever n areas where the ar s dry, t s easy to buld up an electrc charge (statc electrcty). When usng a earphone accessory n such condtons, t s possble for the transcever to send an electrc shock through the earphone and to your ear. We recommend you use only a speaker/ mcrophone n these condtons, to avod electrc shocks.  One or more of the following statements may be applicable: FCC WARNING Ths equpment generates or uses rado frequency energy. Changes or modfcatons to ths equpment may cause harmful nterference unless the modfcatons are expressly approved n the nstructon manual. The user could lose the authorty to operate ths equpment f an unauthorzed change or modfcaton s made. INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY THE FCC Ths equpment has been tested and found to comply wth the lmts for a Class B dgtal devce, pursuant to Part 15 of the FCC Rules. These lmts are desgned to provde reasonable protecton aganst harmful nterference n a resdental nstallaton. Ths equpment generates, uses and can generate rado frequency energy and,  f not  nstalled and used  n accordance wth the nstructons, may cause harmful  nterference to rado communcatons. However, there  s no guarantee that the  nterference wll not occur n a partcular  nstallaton. If th s equpment does cause harmful nterference to rado or televson recepton, whch can be determned by turnng the equpment off and on, the user  s encouraged to try to correct the  nterference by one or more of the followng measures: • Reorent or relocate the recevng antenna. • Increase the separaton between the equpment and recever. • Connect the equpment to an outlet on a crcut dfferent from that to whch the recever s connected. • Consult the dealer for techncal assstance. FCC REGULATIONS REGARDING THE USE OF THE EMERGENCY CHANNEL The communcatons must be for the purpose of solctng or r…

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Mar. 8th, 2007 Letter of Attestation Model: TH-255A Scanning receiver (FCC ID: K44408000) This letter attests to the fact that Kenwood scanner receiver model TH-255A meets the requirements of the FCC Rules, 15.121(a). Compliance is achieved through the following method(s): (1). The Microprocessor employed has internal mask memory. (2). The Microprocessor is not to accept programming, selection, scanning or direct entry of Cellular band frequencies. (3). Filtering precludes reception of mixer images or harmonics of Cellular band frequencies. (4). Subminiature SMD assembly and inaccessible multiplayer PCB construction all but precludes attempts at circuit hardware modifications. ___________________________________ Tamaki Shimamura Communication Equipment Division Kenwood Corporation

Mar. 8th, 2007 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Attn: Reviewing Engineer RE: CONFIDENTIALITY REQUEST FOR MODEL: TH-255A FCC ID: K44408000. To Whom It May Concern: This letter serves as an official request for permanent confidentiality pursuant to 47 CFR Section 0.459 of the Commission Rules. We have requested that the Block Diagram, Schematic Diagrams and Circuit Description required to be submitted with this application be withheld from public review. The documents are company proprietary information that could never get into the possession of our competition. Please contact me if you require any additional information. Sincerely, Tamaki Shimamura Communications Equipment Division Kenwood Corporation 1-16-2, Hakusan, Midori-ku, Yokohama-shi, Kanagawa, 226-8525 Japan

Sep. 25th, 2006 MET Laboratories 914 West Patapsco Ave. Baltimore MD 21230 To wh o m it ma y c o n c e rn : W e, t h e un d e rs ig n ed , h e reb y au t ho riz e ET L S E MK O J APA N K. K . to a c t on o u r b e h a lf in a ll ma tt e rs re la t in g t o a pp lic a t io n s f o r th e e qu ip me n t a u th o riz a t io n , in c lu d in g t h e s ign in g of a ll d o c u me n ts re la t in g t o th e s e ma t te rs . A n y a nd a ll a c ts c a rrie d o u t b y E T L S E MK O J A PA N K . K . o n o u r b eh a lf s h a ll h a v e th e s a me e ff e c t a s a c ts of o u r o wn . T h is a u t h o riz a t io n e x p ire s o ne y e a r f ro m th e c u rre n t da t e . Sincerely yours, Tamaki Shimamura Communication Equipment Division Kenwood Corporation 1-16-2, Hakusan, Midori-ku, Yokohama-shi, Kanagawa, 226-8525 Japan

ETL SEMKO Japan K.K. West 203, Kanagawa Science Park 3-2-1 Sakado, Takatsu-ku Kawasaki213-0012 Japan March 6, 2007 Federal Communications Commission Office of Engineering and Technology 7435 Oakland Mills Road Columbia, MD 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize MET Laboratories, Inc. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988,21 U.S.C.862. This authorization expires one year from the current date. Sincerely, Izumi Mitsui GMAP ETL SEMKO Japan K. K.

Apr. 17th, 2007 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Attn: Reviewing Engineer RE: Extension request of the limited confidentiality for an additional 45 days for MODEL: TH-225A, FCC ID: K44408000. To Whom It May Concern: This letter serves as an official request for extension of short term confidentiality pursuant to 47 CFR Section 0.459 of the Commission Rules. We have requested that the Internal Photos, User’s Manual, External Photos and Test Set-up Photos required to be submitted with this application be withheld from public review. The documents are company proprietary information that could never get into the possession of our competition before product launch Please contact me if you require any additional information. Sincerely, Tamaki Shimamura Communications Equipment Division Kenwood Corporation 1-16-2, Hakusan, Midori-ku, Yokohama-shi, Kanagawa, 226-8525 Japan

Apr. 5th, 2007 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Attn: Reviewing Engineer RE: SHORT TERM CONFIDENTIALITY REQUEST FOR MODEL: TH-255A FCC ID: K44408000. To Whom It May Concern: This letter serves as an official request for short term confidentiality pursuant to 47 CFR Section 0.459 of the Commission Rules. We have requested that the Internal Photos, User’s Manual, External Photos and Test Set-up Photos required to be submitted with this application be withheld from public review. The documents are company proprietary information that could never get into the possession of our competition before product launch . Please contact me if you require any additional information. Sincerely, Tamaki Shimamura Communications Equipment Division Kenwood Corporation 1-16-2, Hakusan, Midori-ku, Yokohama-shi, Kanagawa, 226-8525 Japan

TH-255A FCC ID: K44408000 Front View Rear View TH-255A FCC ID: K44408000 Top View Bottom View TH-255A FCC ID: K44408000 Left View Right View

TH-255A FCC ID: K44408000 TH-255A

Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 1 of 39 Version 0.1 TEST REPORT Regulation : FCC Part15B – Scanning Receiver : FCC Part15B Class B Applicant Testing Laboratory Kenwood Corporation 1-16-2, Hakusan, Midori-ku, Yokohama-shi, Kanagawa 226-8525 Japan Tel : +81 45 939 6254 Fax : +81 45 939 7093 ETL SEMKO Japan K.K. Kashima Site 3-2 Sunayama, Kamisu, Ibaraki 314-0255 Japan Tel.: +81 479 40 1097 Fax.: +81 479 46 1788 URL: http://www.japan.intertek-etlsemko.com Equipment Type 144MHz FM TRANSCEIVER Category Scanning Receiver Trademark KENWOOD Model (s) TH-255A Serial No. None FCC ID K44408000 Test Result Complied Report Number ESJ-107053 Report Issue Date March 22, 2007 This equipment has been shown to be capable of compliance with the applicable standard(s) as indicated in the test report. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. This test report shall not be reproduced partially, or in full, without the prior written approval of ETL SEMKO Japan K.K. The results and statements contained in this report pertain only to the equipment evaluated. Approved by Tested by Kazuo Gokita [ Assistant Manager ] Kazuo Masuda Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 2 of 39 Version 0.1 TABLE OF CONTENTS Page SECTION 1. GENERAL INFORMATION ........................................................................................................... 3 SECTION 2. SUMMARY OF TEST RESULTS ...................................................................................................4 SECTION 3. INFORMATION ABOUT EUT ....................................................................................................... 5 SECTION 4. SUPPORT EQUIPMENT(S) ............................................................................................................ 7 SECTION 5. USED CABLE (S)............................................................................................................................ 8 SECTION 6. CONSTRUCTION OF EQUIPMENT ............................................................................................. 9 SECTION 7. OPERATING CONDITION........................................................................................................... 11 SECTION 8. TEST PROCEDURE(S) ................................................................................................................. 12 SECTION 9. EVALUATION OF TEST RESULTS............................................................................................. 17 SECTION 10. LIST OF MEASURING INSTRUMENTS .................................................................................... 37 SECTION 11. MEASUREMENT UNCERTAINTY ............................................................................................. 38 SECTION 12. DESCRIPTION OF TEST LABORATORY .................................................................................. 39 Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 3 of 39 Version 0.1 SECTION 1. GENERAL INFORMATION TEST PERFORMED Location Kashima No.1 Test Site (FCC Reg. : 934283) EUT Received February 23, 2007 Te s t St a r t e d February 26, 2007 Te s t C o m p l e t e d March 1, 2007 Standard Applied FCC Part15B – Scanning Receiver FCC Part15B Class B Test Setup ANSI C63.4-2003 Deviation from Standard (s) No deviation TEST TRACEABILITY Traceability to national standards of test result is achieved by means of calibration traceability to national or international standards. LIMITATIONS ON RESULTS The test result of this report is effective for equipment under test itself and under the test configuration described on the report. This test report does not assure that whether the test result taken in other testing laboratory is compatible or reproducible to the test result on this report or not. ABBREVIATIONS AE = Associated Equipment DIP = Dipole Antenna AMN = Artificial Mains Network DoC = Device for Declaration of Conformity AMP = Amplifier, ATT = Attenuato r EUT = Equipment Under Test ANT = Antenna, BBA = Broadband Antenna ISN = Impedance Stabilization Network AVG = Average LISN = Line Impedance Stabilization Network Cal = Calibration PK = Peak CDN = Coupling Decoupling Network Q-P = Quasi-peak LCD = Liquid-Crystal Display RX = Receive SPKR = Speaker Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 4 of 39 Version 0.1 SECTION 2. SUMMARY OF TEST RESULTS This test report clearly shows that the EUT is in compliance with the FCC Part15B (- Scanner Receivers) and FCC Part15B Class B specification. The minimum margins to the limits are as follows: Conducted Voltages on Mains Port RX 155MHz mode 15.3 dB at 0.5095 MHz Radiated Electric Field RX 136MHz mode 1.8 dB at 1923.97 MHz Conducted Power on Antenna Port RX 136MHz mode 4.9 dB at 1749.05 MHz 38dB Rejection Test (15.121(b)) No frequency of response was detected. - Passed - Note : See Section 9 for details. Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 5 of 39 Version 0.1 SECTION 3. INFORMATION ABOUT EUT The equipment under test (EUT) consisted of the following equipment. 3.1 List of System Configuration Symbol Item Model No. Serial No.ManufacturerNotes FCC ID A1 144MHz FM Transceiver TH-255A None KENWOOD EUT K44408000 A2 Speaker Microphone SMC-34 None KENWOOD Option N.A. A3 Ni-MH Battery Pack PB-43N None KENWOOD Option N.A. A4 Rapid Charger KSC-24 None KENWOOD Option N.A. A5 AC Adapter KSC-24 None KENWOOD Option N.A. Power Ratings of EUT : DC 7.5V, 2.6A (Max) AC 120V, 60Hz, 22A (AC Adapter) Power Supply : AC 120V, 60 Hz Condition of Equipment Prototype Type Handheld Suppression Devices No Modifications by the laboratory were made to the device 3.2 Overview of…

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Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 1 of 4 Version 0.1 Annex A Photographs Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 2 of 4 Version 0.1 PHOTOGRAPHS OF MAXIMUM EMISSION SET-UP 1 Conducted Voltages on Mains Port Note : Maintaining 10cm spacing between all the equipment cabinets. Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 3 of 4 Version 0.1 2 Radiated Electric Field Note : Maintaining 10cm spacing between all the equipment cabinets. Report No. ESJ–107053 FCC ID : K44408000 © ETL SEMKO Japan K.K. Page 4 of 4 Version 0.1 3 Conducted Power on Antenna Port 4 38dB Rejection