Elecraft, Inc. is an American manufacturer of amateur radio ("ham") equipment and kits, based in Watsonville, California. It was founded in 1998 by Wayne Burdick and Eric Swartz.^[1] The company's first product was the K2 transceiver; first prototyped in October 1997.^[2]

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The company is most notable for the Elecraft K3 high-performance HF transceiver, a 32-bit DSP based radio covering HF plus the 6-meter VHF band and the 160-meter MF band, introduced in 2008. The reception of the K3 was overwhelmingly positive, with a comprehensive review in QST stating that "The K3, in any of the available configurations, provides a high performance, modular and expandable transceiver that can fill the needs of almost anyone looking for an HF and 6 meter transceiver for home station or portable use".^[3] At the time of its introduction, the K3 received the highest Sherwood Engineering ranking of any amateur radio receiver.^{[4][citation needed]}

Elecraft's product lineup includes a range of QRP CW transceivers, the K2 and K3 all-mode 100W transceiver, KX2 (80m-10m) and KX3 (160m–2m) portable transceivers, linear power amplifiers, two panadapters and a range of accessories including antenna tuners and signal generators.

Many Elecraft products are available both as kits and as ready-built units. All offer expansion options. One K3 option, the K144XV, adds a 10-watt 2-meter internal transceiver. The KX3 can accommodate a single internal VHF transverter module. The KX3-2M adds the 2-meter band and the KX3-4M adds 4-meter band, both with 2.5-watt RF output. The 2-meter module receives 120-165 MHz, and transmits on the 2-meter amateur radio band. The 4-meter module covers 65–72 MHz. Sensitivity gradually falls off outside the ham bands, though the 2-meter module is capable of receiving 162 MHz weather-band stations and 120 MHz airport tower AM.^[5]

The KX3 transceiver is a portable software-defined radio (SDR) transceiver with a full-featured knob-and-button interface. Although it is an SDR transceiver, it does not require a computer connection.^[6]

The company's well regarded "K-Line" consists of the K3 transceiver, the KPA500 500W solid-state power amplifier, the KAT500 automatic antenna tuner, and the P3 panadapter.^[7] Also the P3SVGA add-on to the P3 to display the panadapter data on a large screen and the W2 HF/VHF/UHF wattmeter are sometimes considered part of the K-Line. Most recently Elecraft has introduced the "KX-Line" consisting of the KX2 and KX3 transceivers, the PX3 panadapter, and the KXPA100 100W power amplifier.^[8]

In 2015, Elecraft introduced the K3S Transceiver as a direct replacement for the K3 Transceiver. The K3S is a redesign of the K3 with new or upgraded features, most of which can be back fitted to an older K3.^[9]

The K3S is currently ranked 4th in overall performance by Sherwood Engineering company.^[10]

In 2017 Elecraft introduced the KPA1500, a 1500 watt (full legal limit) amplifier. The KPA1500 covers the 160 through 6 meter bands. Its most notable feature is a built-in wide-range antenna tuning unit (ATU). The amplifier's power supply is housed in a separate enclosure, allowing the RF deck/control unit to be quite small relative to other full legal limit amplifiers.

Elecraft’s impending release of the K4 transceiver ^[11] will replace the K3S. Elecraft co-founder Eric Swartz discusses the radio in detail on the watersstanton YouTube channel.