1、Superseaing i9 February 1954 ML-R- 9453mw? Ir SCOPE 2.1 This specification covers one type of radio se%, designated Radio Receiving Set m/m-36. 2. APPLICABLZDOCITMENTS 2.1 The following documents, of the issue in effect on the date of invitation for bids, form a part of this specification: SISECIFI
2、CATIONS Mi lit arr PIIL-D- Dynamotors MIL-R-6471 Radio Set AN/ARC-21 MIL-% 17555 Preparation For Delivery Of Electronic Equipment ; Miscellaneous Electrical Equipment (Except Rotating Electrical Equipment) and Associated Repair Parts Mili taru NIL-STD- Identification Marking of U. S. Military Proper
3、ty (Copies of documents required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. Comonent Parts.- Radio Receiving Set m/m-36 shall consist of the following componentsr: Radio Receiver R-224
4、/AW1-36 Dynamotor DY - lO8km-3 6 Control, Radio Set C-l21O/ARC ioun t ing m- 1276/m-36 .I F$C 5%u II Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 Standard Sample.- A standard sample of Radio Receiving Set m/m-36 herein. required functional and
5、 dimensional interchangeability. oonflicts with the specification, the specification shall govern, 3 .3 requirements of this specification with the exceptions or additions called out herein. When the two specifications conflict, this specification shall govern. ill be furnished to demonstrate the mi
6、nimum acceptable standard/ d terials, deslgn,workmanship,and performance not specified It shall also be used to determine compliance with the If it General Spacif icbtion. - The requiremnts of KIL-R-6471 apply as 3.4 Desim and Construction 3,4,1 when properly interconnected with its components and c
7、onnected to a suitable prknary power source, an antenna installation, and an inter- phone system, including headphones and associated amplifiers, shall provide suitable reception for long distance comication. shall be provided for operation with a frequency shift converter designed for teletype oper
8、a.t;ion, The radio receiving set shall be in accordance with the sample and shall use those subassemblies of Receiver-Transmitter RT-l28/ARC-21 required for a complete receiver. These subassemblies shall be identical to those used in Radio Receiver- Transmitter RT-128/8RC-21 specified in VJL-R-6471,
9、 providedfor the use of 1 manually tuned Radio Set Control C-l21O/ARC or General.- An installation of Radio Receiving Set m/m-36, Neans Dkans shall be Radio Set Control C-45l/ARC-Sl an up to 5 Radio Set Control 3.4.2 Radio Receiver R-224/RR-36. Performance ChsrawterPstics,- The required perf ormance
10、 characteristics of Radio neceiver Rd224/A?Ft-36 shall be those as specified under receiver performance characteristics in m-6473, c-45.5/mcW21 . 3.4.2.1 Provision for Antenna Coupler.- The receiver chal1 contain facilities (power capability and terrina1 connections) for providing 15 milliamperes at
11、 120 volts do for operation of isolation circuits used for installations employing one antenqa for both this receiver and a Loran receiverr 3.4.3 be used with the receiver, Contro1System.- Either of the following control systems shall 3.4.3.1 employing Control, Xadio Set C-l2TO/BC shall be in accord
12、ance wth the model and shall provide the following: Control. Radio Set C-121Q/ARCr- A manual control system a. Selection of any one of the discrete frequencies of operation (44,000) provided by the receiver Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
13、-,-,-MIL-R-7453A 58 7777706 OI4b57 I - b. Mgans for turning the receiver on and off. c. Control of audio volume or sensitivity. The audio volume control shall be ganged with the sensitivity control. The control shall have a range of approximately 18 decibels when there is a l5O-ohm load connected to
14、 the output. The audio volunse shall be controlled in the audio circuits during Voice reception and the sensitivity in the radio frequency circuits during CW reception. d. Selection of Sharp LX, Broad Ctw, Voice, or FSKreception. e. Adjustnient of the threshold sensitivity during Voice reception. f.
15、 Control of the frequency of the tone during CW reception. g. A spring-loaded switch which will initiate tuning of the receiver when depressed. 3.4.3.2 Radio Set Control C-455/ARC.- This master and subcontrol system shall provide remote operation of the receiver from more than one position in the ai
16、rcraft. of Radio Set BN/ARC-21 and shall be as specified in JIIL-R-6471. 3.4.4 Dynamotor RY-lO8/A.RR-36.- This dynamtor shall be capable of supplying the necessary power to the receiving equiprent and shall be in accordance with MIL-D-24 and the model. of the dynamotor to Radio Receiver -224/m-36 ah
17、all. be grovided. 3.4.5 a sat covered by this specification is intended for use as a long-range radio receiving set for bomber and cargo type aircraft, It is also an auxiliary receiver for use with and the fact that; the Goverrunent may have formulated, furnished, or in any way supplied the said dra
18、wings, specifications, or other data is not to be regarded by implication or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufactwe, use, or sell any patented invention that may in any way be related thereto. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
