1、I .iMIL-R-22b79 (4) 58 9999906 015Lq83 5 . - .i . . MIL-R-22679 (AS) - kiendment 4 Superseding Amendment 3 - 28 September 1967 i2 August i968 . MILITARY SPECIFICATION RECEIVER-TRANSMTTER RADIO RT-559/kSQ-58 and RT-559A/ASQ-58 This amendment forms a part of Military Specifications MIL-R-22679 (WEP) d
2、ated 1 Hovember 1960 and has been approved by the Naval Air Systems Command, Department of the Navy. changed to NL-R-22679 (AS) and throughout the specification, Bureau of Naval Weapons shall be changed to Naval Air Systems Command. By this amendment. basic MIL-R-22679 (KP) is Page 1, Title: Delete
3、and substitute the title of this amendment. Page 1, paragraph 1.1: Add “NOTE: The RT-559A/ASQ-58 is compatible with Juliet-28 equipment.“ Page 1, paragraph 1.2: Add “(11) Juliet-28 (RT-559A/ASQ-58 only) (1 2) C-8057/ARC (RT-559A/ASQ-58 only) (1 3) C-2791A (RT-559A/ASQ-58 only)“ ,n. Page 2, paragraph
4、 2.1, after “invitation for bids“: Add “except the dated document indicated below,“ Page 2, paragraph 2.1, under SPECIFICATIONS Military: Add “MIL-1-61 81 6 (29 May 1953) . I _. I. : I- . ;: . - . . -. -. Interference Limits; Tests and Design Requirements , Aircraft Electrical and Electronic Equipme
5、nt . (See 2.2(2)“ _- Page 2, paragraph 2.2: Add .- l(1) Page 2, Add: Specification MIL-1-61813 is available from the Naval Air Systems Command, Washington 25, D. C. Attention: dvionia Mdsion.“ “3.2.8 Antenna Conducted Interference - Antenna conducted interference shall meet the requirements of Speci
6、fication MIL-I-6181B except that at not more than 9 of the 18 injection frequencies the antenna conducted interference due to the main receiver injection frequency shall not exceed 300 microvolts.“ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I. .
7、-_ 1 MIL-R-22679 (AS) Amendment 4 i paragraph 3.3.9.3: Delete and substitute “3.3.9.3 Puxiliarv Circuit - The auxiliary circuits shall deliver only signals detected by the variable frequency receiver. modulated 30% at 1000 CDS is avplied, the outyt shall be at least 0.25 volt, and when the modulatio
8、n frequency is varied frcl. 70 to 7000 c?s, the output for any frequency in the range of.70 to 200.0s shall be witlii:i +4.5 and -3.0 db and in the range 200 to 7000 cps shall be within t 2 and -3 db of the output obtained at 1000 cos. The RT-55A/ASQ-58 shall not vary niore t!ian i 4 and 4 db from t
9、he !Athen a 1009 - nijcrovalt signal output obtained at 1000 cps when the nodtilation frequency is varied from 70 to 20,000 cps , II .f Page 7, paragraph 3.3.12.11.1: Delete table and substitute 4 Relative Outnut in db *. RT-559A/ASQ-58 . . _- _ “Frequency Cps RT-559/ASQ-58 - _- - - t- 150 -8 or low
10、er -5 or lower 300 -3 t0.-7 +4 to -4 600 . +1 to -2 +3 to -3 0 (ref. level) t2 to -2 * 6,000 . t2 to -2 4-3 to -3 10,000 +1 to -5 . +$ to -4 15,000 - +4 to -4 - t4 to -4 20,000 O (ref. level) +2 to -2 1.000 3,000 -.CI -2- - - _ -_ I .-/ F- _ -.- -*_ crc -_ Provided by IHSNot for ResaleNo reproductio
11、n or networking permitted without license from IHS-,-,-,. .- r 1 I r %IL-R-22679 (AS) RTendment 4 . Page 8, paragraph 3.3.12.2: Delete and substitute “3.3.12.2 Tone iiodulation - 2ot less than 70 eercent modulation of the r-f carrier shall occur when tone transmission is selected and the transmitter
12、 is keyed. The frequency of modulation shall be 1000 cy 2 201.“ Page 8, paragraph 3.3.13: Delete and substitute -. “3.3.13 Swrious Radiation - The niagnihde of all radiated sfgnals on other except that harmonic freauencies shall be attenuated not less than 55 db at 450 mc with a linear increase to 7
13、5 db at 525 mc. The attenuation above . 525 mc shall be 75 db or greater.“ than the carrier frequency shall be 40 db or p.:ore below the carrier signal , *Page 8, paragraph 3.3.16: Add !Under the above condi tion the auxi 1 iary audio. and the auxi 1 iary guard shal I have a signal ?lus noise to noi
14、se ratio of.not less than 20 db,“ Page 10, paragraph 3.4.1.2: Delete “10-37/64: and substitute “10-11/16“ . Page 10, paragraph 3.4.1.2: Add “The front panel shall extend an additional 1-7/16 inches below the base pla: the front of the case. Page 12, paragraph 3.4.1.7.3: Add . . and the pressure reli
15、ef valve shall extend an additional 9/32 inches beyond _. “ihe auxiliary guard output of the RT-559A/AS9-58 shall be terminated ina 600 ohm load, including means for wasuring the audio output voltage.“ Mike Input“: Page 12, paragraph 3.4.1.7, under “Carbon F!icrophone Innut“ and under “Dynamic Delet
16、e .“Frecuency rance 150-10,000 cos“ and sibsti tute “Frequency range 150-10,000 cps (Rf-559/$Sq-58) . . 150-20,000 CDS (RT-559A/ASQ-58) I Page 12, paragraph 3.4.1.7.4: Add “NOTE: 1 Vms nust be supoied when the RT-559AIASQ-58 is used with Juliet equipment.“ Page 13, after paragraph 5.1 : Add “5.2 Fin
17、al Adjustwnts -. Unless otherwise stated by the contract, the receiver- transmitter shall be shibped properly adjusted for signal-to-noise squelch and carbon microphone operation.“ ! *An asterisk oreceding a change denotes a change to be nade to the specification . which did not apoear in Amendment 3. -3- *U. S. GWERNMENT PRINTING OFfldt l968.34l-SlVA-1851 I_ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
