Question: The 601 is equipped with which American all-weather, carrier-capable tactical airborne early warning (AEW) aircraft?

Context articles: List of AEW&amp;C aircraft operators
Lockheed EC-121 Warning Star
KJ-200
DRDO AEW&amp;CS
VAW-121
Northrop Grumman E-2 Hawkeye
601st Squadron (JASDF)
KJ-1 AEWC
Fairey Gannet AEW.3
VAW-117

Airborne early warning and control (AEW&C) aircraft are airborne radar systems designed to detect and track aircraft, missiles, ships and vehicles and provide command and control to direct friendly forces.
 Some operators, such as the Royal Air Force refer to such aircraft as Airborne early warning (AEW), while others reserve the shorter name for AEW aircraft lacking command and control facilities.
The Lockheed EC-121 Warning Star was a United States Navy and United States Air Force Airborne early warning and control radar surveillance aircraft.
 A military version of the Lockheed L-1049 Super Constellation, it was designed to serve as an airborne early warning system to supplement the Distant Early Warning Line, using two large radomes, a vertical dome above and a horizontal one below the fuselage.
 EC-121s were also used for intelligence gathering (SIGINT).
KJ-200 (), or Y-8 Balance Beam system, is an Airborne early warning and control (AEW&C) program developed by Shaanxi Aircraft Corporation.
 (KJ is from the first characters of the Pinyin spelling of 空警, (Kōng Jǐng), short for 空中预警 (Kōng Zhōng Yù Jǐng), which means Airborne Early Warning).
The DRDO Airborne Early Warning and Control System (AEWACS) is a project of India's Defence Research and Development Organisation to develop an airborne early warning and control system for the Indian Air Force.
 It is also referred to as DRDO NETRA AEW&CS system.
Carrier Airborne Early Warning Squadron 121 (VAW-121), also known as the "Bluetails", is an Airborne Early Warning (AEW) and Command and control (C2) squadron operating the E-2D Hawkeye based at NAS Norfolk.
 Currently a part of Carrier Air Wing 11, they deploy aboard USS "Nimitz" .
The Northrop Grumman E-2 Hawkeye is an American all-weather, carrier-capable tactical airborne early warning (AEW) aircraft.
 This twin-turboprop aircraft was designed and developed during the late 1950s and early 1960s by the Grumman Aircraft Company for the United States Navy as a replacement for the earlier, piston-engined E-1 Tracer, which was rapidly becoming obsolete.
 The aircraft's performance has been upgraded with the E-2B, and E-2C versions, where most of the changes were made to the radar and radio communications due to advances in electronic integrated circuits and other electronics.
 The fourth major version of the Hawkeye is the E-2D, which first flew in 2007.
 The E-2 was the first aircraft designed specifically for its role, as opposed to a modification of an existing airframe, such as the Boeing E-3 Sentry.
 Variants of the Hawkeye have been in continuous production since 1960, giving it the longest production run of any carrier-based aircraft.
The 第601飛行隊 (601st Squadron , dai603hikoutai ) is a squadron of the Airborne Early Warning Surveillance Group of the Japan Air Self-Defense Force (JASDF) based at Misawa Air Base in Aomori Prefecture, Japan.
 It is equipped with Northrop Grumman E-2C Hawkeye aircraft.
The KJ-1 is a first generation Chinese AEW (Airborne Early Warning) radar fitted to a Tupolev Tu-4 bomber.
 The project was started in 1969 under the code name "Project 926".
 (KJ is from the first characters of the Pinyin spelling of 空警, (Kōng Jǐng), short for 空中预警 (Kōng Zhōng Yù Jǐng), which means Airborne Early Warning).
The Fairey Gannet AEW.3 was a variant of the Fairey Gannet anti-submarine warfare aircraft intended to be used in the airborne early warning (AEW) role on aircraft carriers of the Royal Navy.
 It was introduced to service in 1959 to replace the obsolete Douglas Skyraider, and was intended as an interim solution until the planned introduction of a new, purpose built AEW platform for use on the planned CVA-01 aircraft carriers.
 Neither the new aircraft carriers nor the new AEW aircraft were proceeded with, and the Gannet AEW remained in service until the last aircraft carrier that could operate it was retired.
Carrier Airborne Early Warning Squadron 117 (VAW-117) is an airborne early warning (AEW) squadron.
 Nicknamed "The Wallbangers" (formerly "The Nighthawks"), it flies the E-2C Hawkeye, the USN’s only carrier-based command and control platform.
 The squadron is based out of NAS Point Mugu and deploys as part of Carrier Air Wing 9 (CVW-9) on board USS "John C. Stennis" .