1、I MIL-N-81207A(AS) T Amendment-1 i9 July 1976 MILITARY SPECIFICATION NAVIGATION SET, TACAN AN/ARN-84(V) This amendment forms a part of Military Specification MIL-N-81207A(AS) dated 8 January 1973 and has been approved by the Naval Air Systems Command, Department of the Navy. Page 8, paragraph 3.3.2.
2、2: Change first sentence to read: “The equipment shall have a total operating life of 10,000 hours with reasonable servicing and replacement of parts.“ Page 11, paragraph 3.3.12 1 (1) Add : “26 volts 60 volt amps“ Page 12, paragraph 3.3.13: Change to read: “The equipment shall operate satisfactorily
3、 when supplied with ambient cooling air from the internal blower and with aircraft supplied conditioned air in accordance with figure 1.“ Page 31, paragraph 3.5.1.14(c): Add: “The North Reference Trigger is a shunt to ground of 6 (input impedance of 1.OK ohms or greater). for a period of 70 $: 10 mi
4、croseconds at a repetition rate of 15 hz f 0.2% 1.0 volts The shunt shall be applied Page 48, paragraph 3.5.7.15.4: In second sentence delete: “When loaded with 91 ohms and 500 pf to ground“. Page 49, paragraph 3.5.7.19, Change to read: “A discrete output signal the Receive, Transmit-Receive, and Ai
5、r to Air modes, to associated equipment for the purpose of external power control.“ of + 25 2 5 volts dc shall be provided, in Page 11, Add new paragraph: “3.3.10.2: when subjected to the temperature-altitude requirement of MIL-E-5400 Figure 3. The navigation set control shall conform to MIL-E-5400
6、Figure 3 except that the temperature shall not exceed + 7OoC.“ Temperature Altitude - The equipment shall operate satisfactorily Page 9, Add new paragraph: “3.3.5.3 being tested to the WRAY SRA and sub SRA levels on the AA15510 test set. Automatic Support Equipment - The equipment shall be capable of * U.C. GOVERNMENT PRINTING OFFICE: 1976-603-766/6505 NSC- 582b Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
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