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'''{{PAGENAME}} Long Range IFF/SIF Radar Recognition Set''' - A Long Range IFF/SIF Radar Recognition set built by Hazeltine Electronic Corporation., Crosley Div. and Avco Mfg Corporation.

Radar Identification Set GPX-7A operates with an airborne transponder identification set. Any of 32 security identity (SI) codes, 400 personnel identity (PI) codes, or 6,1 traffic identity (TI) modes, provide identification friend or foe (IFF) and selective identification feature (SIF) for Radar Sets [[FPS-3]] or FPS-3A. Two interrogators of the GPX-7A alternately transmit coded rf pulses to trigger the airborne transponder identification set and convert the received transponder reply to video pulses. The equipment permits the video pulses to be displayed on the plan position indicators of the associated radar set or supplies the video pulses a the SIF Coder-Decoder. The GPX-7A supplies coded pulses for security identity, personnel identity, and traffic identity. The set decodes multiple-pulse response codes transmitted by airborne equipment in reply to interrogations or challenges and supplies the video reply signals to the indicators of the associated radar. The interrogator output level and receiver sensitivity are adequate for interrogating and receiving replies from transponders operating within the detection range of the associated radar. The AN/GPX-7A may be independently operated to track targets equipped with a radar identification set.
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== GPX-7A Radar Recognition Set==
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|+ GPX-7A Radar Recognition Set
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! Element
! Value
! Notes
|-
| Nomenclature || GPX-7A ||
|-
| Origins || GPX-7 ||
|-
| Variants || ||
|-
| Manufacturer || Hazeltine Electronic Corp.<br>Crosley Div.<br>Avco Mfg Corp. ||
|-
| Type || IFF/SIF ||
|-
| Transmitting Frequency || 990-1040 mc||
|-
| Receiving Frequency || 1010-1130 mc||
|-
| PRF || 180-420 ||
|-
| Pulse Width || 1 usec || 
|-
| Power || 1.5 kw|| 
|-
| Range || || Long Range
|-
| Introduced ||  ||

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[[File:GPX-7A.jpg|thumb|left|350px|GPX-7A Radar Recognition Set.]]
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{{GPX-7Components}}

'''See Also:'''
* [[US Radar Sets]]

'''Sources:''' 
* {{Winkler}}
* MIL-HDBK-162A, 15 Dec 1965.

'''Links:''' 

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[[Category:IFF/SIF/Beacon Sets]]
[[Category:GPX-7]]