Caterpillar Consent Exhibit

0080-EX-ML-2007 Text Documents

CATERPILLAR, INC.

2007-12-21ELS_86842

09/13/2007 14:19 £02—207—3555 KTVK ENGR PAGE 91 Caterpillar inc. GAIEHP".l.AH» Cat Electranics P;D. Box 610 Mossville, iL 81552—0610 9/6/2007 Mr. James Cole KTVK $555 N7Ave Phoenix, AZ 85013 Dear Mr. Cole: This letter follows—up on our earlier telephone conversation. On behalf of Caterpiliar, Inc. ("Caterpitlar"), this letter requests the consent of KTVK, Inc., icensee oftelevision station KTVK at Phoenix, Arizona for Caterpillar to conduct shoart (less than 15 seconds), low power radiofrequency ("RF") immunity testing on frequencies within your stations‘ channels. ofoperation at Caterpillar‘s proving grounds near Green Valley, Arizona. Itis expected that the proposed RF immunity testing would occur no mare than ten times per year. The technical details of Caterpillar‘s proposed RF immunity testing are set forth in the attached technicalinformation pages. Some background information on Caterpillar‘s need to conduct this testing is provided below, We are asking for your concurrence because your stations are the channel 3 and 24 authorizations.nearest to our Tucson proving grounds location. Please review this letter and the attached technical information page. If Caterpillar‘s proposed testing is acceptable, please sign at the bottom of this latter where indicated and fax a copy to the undersigned. Background: Caterpillar is a world—leading manufacturer of heavy construction equipment with corporate headquarters in Peoria, IL. During development, .our products are subjected to extensive testing to ensure product quality and to demonstrate compliance with numerous international and domestic regulations and standards. In particular, RF immunity testing is required for product safety and to meet several European Union Directives. RF immunity testing involves subjecting a machine‘s control system electronics to an electromagnatic field to ensure that such fields do not affect the operation of the electronics and/or machine. This testing is very Important due to the profiferation of wireless devices. and services that could possibly interfere with Caterpiliar‘s machine electronics,

@9/13/2807 14:19 602—207—3556 KTVK ENGR PAGE 82 In the past, it has been possible to perform the majority of this RF immunity testing indoors at the component or subsystem level. However, a$ machines have become more electrically complex, it is difficult or impossible to test certain subsysterns apart from the machine. in these cases, machine—level RF immunity testing is required. In many €3568, these machine level tests can be performed indoors in a shielded chamber. However, in a few cases, due to the size of some of our products, it is not always possible to find a chamber large eniough in which to test the machine. The only practical way totest this subset of machines is to conduct the tests outdoors. This type of outdoor testing is viewed as an option of last resort, and as such, is conducted infrequently (several times per year at most}. Outdoor RF immunity testing consists of irradiating a machine with an electromagnetic field across a wide frequency range (typically 30 MHz to 2 GHz). Required field strengths range from 10 V/m to 100 V/m or more, depending on the standard—in question. To produce the field, an antenna is placed in close proximity to the machine, with a‘signal generator and amplifier being used to produce the RFenergy. The antenna utilized istypically a highly directional wideband log periodic antenna, which is.painted at the machine under test. Typical output power from the amplifier is less than .5 kW, depending on antenna efficiency at the frequency in question. Starting at the lowest frequency of interst, the signal generator is stepped through the frequency range in increments of several MHz, dwelling on any particular frequency for a duration of less than 10 seconds. The transmitted signal is either an unmodulated carrier or 80 percent AM modulated at 1 kHz. Request: Caterpiliaris in the process of obtaining an experimental license from the FCC for the purpose of conducting outdoor RF immunity testing at our two proving ground focations in the United States {near Green Valley AZ, and Peoria, IL). As an interim measure, Caterpillar has recently been granted a Special Temporary Authority(STA) by the FCC {callsign WCOXWS) to conduct the required testing at its two proving ground locations until such time as a.grant of experimental license is obtained. This STA, however, excludes authorization to transmit on all frequencies usedby FM radio and television facilities.. To secure consent to operate on these broadcast frequencies, it was recommended that wecoordinate locally with broadcast licensees to secure permission fo canduct the RF immunity tests on these frequencies. We believe that Caterpillar‘s RF immunity testing transmissions willnot resultin harmful interference to your station for the following reasons: * The distance between your station and our propased test location is such that the risk of harmful interference is minimal a The propesed outdoor tests ocour infrequently (once every several months at most) * The dwelltime at any particular frequency during testing is typically less than 10 seconds

©3/13/2907 14:19 602—207~3556 KTVK ENGR PAGE B3 The power levels being transmitted during testing are low (5 KW ERP max) The transmitting antenna will be in close proximity to ground fevel, which will greatly litmit the range of the transmitted signal, and will be located in the center of Caterpiliar property #« The transmitted signal will have a very narrow bandwidth {2z kHz max}, which in itself reduces potential Interterance to television stations * We propose to make these narrowband transmissions 2 kHz above the bottom af the channel edge, so as to further minimize interference potential to analog and digital TV stations * Preliminary interference studies have shown that the probability of interference to the stations in question will be extremely low {see attached technical documentation} Detailedtechnical—information about our proposed operation, along with preliminary interference analysis, is attached. If this request seems reasonable, we respectfully requestthat you sign at the bottom of this document where indi¢ated and return a copy to the: undersigned via facsimile:—and mail. Thank you for your consideration. Please contact me if you have any questions about Caterpiliar‘s proposed RF immuinity testing. Sincerely, Andy Knltt Cat Electronics Advanced Engineering knitt_andrew._a@cat.com 309—578—2724 Phone 3o9—578—1383 Fax

KVOA COMMUNICATIONS, INC. P.O. Bax 5188, Tucson, Arizona 85703—0188 Studios at 209 W. Elm Street, 85705—6538 MEWEWW KVOA A service of Cordiliera Communications, FAX t uc so nallg Division of Evening Post Publishing Voted Best Station for Breaking News ~The Associated Press To: "}Mc"waTT_ _Fom Gary Reabrick Fax: Pages: Phone: Date: Re: CC: Phone 520.792.2270 Eyewitness News 4 FAX: 520.884.4644 FAX: 520.620—:14309 Sales/Traffic FAX: 520.624.5983 x$ — 7 1% 6 Engineering FAX: 520.628.7186 REMARKS: This transmission is confidential and intended only for the above addressee. If you are not the Intended reciplent, be aware that any disclosure, copying, distibution or use of the contents of this transmission is prohibited. —If you have received this communication in error, please nofify the sender immediately by phone and mail the original back fo us.. Thank You. pt< ssteranoes setaggep uun7 R6§:T1I 40 §z3 deg

Caterpiltar Inc. c_fi“%TEnpl '_l_AR® Cat Elactronies P. 0. Box 810 Mossville, L. 61552—0610 9/25/2007 Mr..Gary Kabrick KVOA 208 W Elm St. Tucson, AZ 85704 Dear Mr. Kabrick: This letter follows—up on our earlier telephone conversation. On behalf of Caterpillar, tnc. {"Caterpillar"), this letter requests the consent of KVOA Communications, Inc., licensee of television station KVOA at Tucson, Arizona and K20FO at Sierra Vista, Arizona for Caterpillar to conduct short {less than 15 seconds}, low power radiefrequency ("RF") immunity testing on frequencies within your stations‘ channels of operation at Caterpillar‘s proving grounds near Green Valley, Arizona. It is expected that the proposed RF immunity testing would occur no more than ten times per year. The technical details of Caterpillar‘s proposed RF immunity testing are set forth in the attached technical information pages. Some background information on Caterpillar‘s need to conduct this testing is provided below. We are asking for your concurrence because your stations are the channel 4 and 20 authorizations nearest to our Tucson proving graunds location. Please review this letter and the attached technical information page. If Caterpillar‘s propased testing is acceptable, please sign at the bottom of this letter where indicated and fax a copy to the undersigned. Background: Caterpillar is a world—leading manufacturer of heavy construction equipment with corporate headquarters in Peoria, IL. During development, our products are subjected to extensive testing to ensure product quality and to demonstrate compliance with numerous international and domestic regulations and standards. in particular, RF immunity testing is required for product safety and to meet several European Union Directives. RF immunity testing involves subjecting a machine‘s control system electronics to an electromagnetic field to ensure that such fields do not affect the operation of the electronics and/or machine. This testing is very important due to the profiferation of wireless devices and services that could possibly interfere with Caterpillar‘s machine electronics. sseeresocs setaggep uuhry es§siT1 10 s2 dos

In the past, it has been possible to perform the majority of this RF immunity testing indoors at the component or subsystem level. However, as machines have become mare electrically complex, it is difficult or impossible to test certain subsystems apart from the machine. In these cases, machine—level RF immunity testing is required. in many cases, these machine level tests can be performed indoors in a shielded chamber. However, in a few cases, due to the size of some of our products, it is not always possible to find a chamber large enough in which to test the machine. The only practical way to test this subset of machines is to conduct the tests outdsors. This type of outdoor testing is viewed as an option of last resort, and as such, is conducted infrequently (several times per year at most}. Outdoor RF immunity testing consists of irradiating a machine with an electromagnetic field across a wide frequency range (typically 30 MHz to 2 GHz). Required field strengths range from 10 V/m to 100 V/m or more, depending on the standard in question. To produce the field, an antenna is placed in close proximity to the machine, with a signal generator and amplifier being usedto produce the RF energy. The antenna utilized is typically a highly directional wideband log perlodic anterna, which is pointed at the machine under test. Typical output power from the amplifier is less than .5 kW, depending an antenna efficiency at the frequency in question. Starting at the lowest frequency of interest, the signal generator is stepped through the frequency range in increments of several MHz, dwelling on any particular frequency for a duration of less than 10 seconds. The transmitted signal is either an unmodulated carrier or 80 percent AM modulated at 1 kHz. Request: Caterpiliar is in the process of obtaining an experimental license from the ECC for the purpose of conducting outdoor RF immunity testing at our two proving ground focations in the United States (near Green Valley AZ, and Peoria, IL). As an interim measure, Caterpillar has recently been granted a Special Temporary Authority {STA) by the FCC {callsign WCGXWS) to conduct the required testing at its two proving ground locations until such time as a grant of experimental license is obtained.. This STA, however, excludes authorization to transmit on all frequencies used by FM radio and television facilities. To secure consent to operate on these broadcast frequencies, it was recommended that we coordinate locally with broadcast licensees to secure permission to conduct the—RF immunity tests on these frequencies. We betieve that Caterpillar‘s RF immunity testing transmissions will not result in harmful interference to your station for the following reasons: * The proposed outdoor tests occur infrequently (once every several months at most) * The dwell time at any particular frequency during testing is less than 10 seconds * The power levels being transmitted during testing are low {.5 kW ERP max) sscc+saogs seragger uuf7 esscTt 40 sa des

* The transmitting antenna will be in close proximity to ground level, which will greatly limit the range of the transmitted signal, and will be located in the center of Caterpillar property * The transmilted signal will have a very narrow bandwidth (2 kHz max}, which in itself reduces potential interference to television stations * We propose to make these narrowband transmissions 2 kHz above the bottom of the channel edge, so as to further minimize interference potential to analog and digital TV stations e Preliminary interference studies have shown that the probability of interference to the stations in question will be extremely low {see attached technical documentation} Detailed technical information about our proposed operation, along with preliminary interference analysis, is attached. If this request seems reasonable, we respectfully request that you sign at the bottom of this document where indicated and return a copy to the undersignéd via facsimile and mail, Thank you for your consideration. Please contact me if you have any questions about Caterpillar‘s proposed RF immunity testing. Sincerely, Andy Knitt Cat Electronics Advanced Engineering knitt_andrew_a@cat.com 309—578—2724 Phone 309—578—1383 Fax REQUESTED CONSENT GRANTED UNDER THE FOLLOWING CONDITIONS: 1. Caterpilfar agrees to notify KVOA engineers at least 24 hours in advance of resting unti) KVOA has established that the testing is not resulting in viewer complaints. 2. Should Caterpillar ar KVOA at any time recelve complaints from viewers diue to Caterpitlar‘s operations, Caterpillat agrees to suspend operations upon notffication from—KVOA until such complaints are resolved. REQUESTEE’ICONSENT GRANTED: P #0G. al T___ SssEE+2902s setaggep uufrg E88:1T1 L0 G2 des


Document Created: 2007-12-21 18:15:17
Document Modified: 2007-12-21 18:15:17
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