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KX3 Core Assembly
KXFL3-F Roofing Dual Bandwidth Filter for SSB/CW/DATA
KXBC3-F Internal NiMH Charger/Real-Time Clock
KXAT3-F Internal Automatic Antenna Tuners


What's in the Box
Refurbished KX3-F
Power Cable



  • Advanced DSP provides dual watch, noise reduction, noise blanking, auto-notch, stereo audio effects
  • Software-defined radio (SDR) architectureplus optional roofing filters for excellent dynamic range
  • Operates in data modes (PSK31/RTTY) with or without a PC; includes RX I/Q soundcard outputs
  • Built-in speaker
  • Internal options include wide-range ATU, battery charger, 2-meter module, dual-passband roofing filter



  • 160 - 6-meter ham bands; general coverage receive from 1.5 - 32.0 MHz (also covers 0.31 - 1.5 MHz with reduced sensitivity)
  • All modes: SSB, CW, Data (four sub-modes), AM, FM
  • Ultra-compact size: 3.4"H x 7.4"W x 1.7"D; 18 oz. (less options)
  • Rear tilt feet fold up for transport
  • Custom high-contrast LCD with alphanumeric text display
  • Current drain as low as 150 mA in receive mode
  • High-performance 32-bit floating-point DSP
  • Built-in PSK/TTY decode/encode allows data mode operation without a PC; transmit in data modes using CW keyer paddle
  • Low-noise synthesizer with 1-Hz tuning resolution
  • Firmware updateable via provided application software


  • Quadrature down-sampling mixer compatible with PC-based SDR (software defined radio) applications
  • Receiver I/Q outputs for use with PC soundcard
  • Dual roofing filter option for enhanced dynamic range.  (500/1500 Hz analog filters; effective IF b/w of 1000/3000 Hz)
  • Switchable preamp and attenuator 
  • 8-band receive audio equalizer
  • Dual watch over +/- 15 kHz range; uses applicable roofing filter
  • Easy-to-use PassBand Tuning (PBT) for shift/width/hicut/locut; roofing filters automatically track DSP filter settings
  • Automatic and manual notch filtering; adjustable noise reduction and noise blanking; binaural audio effects for enhanced receive
  • Center-tuning indicator for CW and data modes
  • Built-in speaker; stereo jack for headphones/external speakers


  • Adjustable output, 0.1 to 10 W (8 W 12, 10 & 6 M)
  • (100 W with KXPA100 amp)
  • Rugged, SWR and temperature-protected final amplifier stage
  • Optional MH3 microphone with PTT and UP/DOWN functions
  • Optional attached keyer paddle with spacing adjustment
  • Switchable PA output impedance for efficient 5-W or 10-W use
  • Fast, silent, PIN-diode T-R switching - no relays
  • DSP RF speech processing for excellent 'punch'

Other Features

  • Built-in digital voice recorder (DVR) with two message buffers
  • Internal CW keyer with 8-50 WPM range
  • Six CW/DATA message memories
  • 100 general-purpose memories store VFOs, modes, etc.
  • Computer control via supplied USB cable or optional RS-232 cables
  • Full remote-control command set works with most amateur radio software applications (emulates Elecraft K3)
  • One-click firmware upgrades via the web (with free PC software)





Elecraft Certified Refurbished Limited Warranty

Elecraft’s Certified Refurbished equipment are maintained and thoroughly tested by Elecraft Technicians. 

Who is covered?

This Warranty extends only to the first consumer purchaser, and is not transferable.

What is covered and for how long?

Elecraft Certified Refurbished Limited Warranty is One Year from the date of purchase for the following refurbished items: 

  • Transceivers
  • Amplifiers
  • Tuners
  • Panadapters
  • Remote Systems

Elecraft Certified Refurbished Limited Warranty for products not listed above is 90 Days from the date of purchase.  This includes but is not limited to:

  • Test Equipment
  • Power Supplies
  • Accessories
  • Cables

This Warranty is conditioned upon proper use of the product and covers manufacturing defects in materials and workmanship encountered in normal, reasonable use of the product during the warranty period. 

What is not covered?

  • Normal wear and tear
  • If the product has been mistreated or mishandled
  • If the product has been improperly installed or configured
  • If the product has been modified from its original condition
  • If the product has been subject to an accident
  • If the product has been subject to lightning, power surges, incorrect electrical voltage, or any electrical stress
  • If the product has been subject to acts of nature
  • If a battery has been charged by a battery charger not specified or approved by Elecraft for charging the battery
  • If any of the seals on an Elecraft battery are broken or show evidence of tampering; or the battery has been used in equipment other than the Elecraft device for which it is specified.

This warranty only covers Certified Refurbished Elecraft product(s).  

What are Elecraft’s obligations?

During the applicable warranty period, provided the Product is returned in accordance with the terms of this Limited Warranty, Elecraft will repair or replace the Product, at Elecraft’s sole option, without charge. Elecraft may, at Elecraft’s sole option, use rebuilt, reconditioned, or new parts or components when repairing any Product, or may replace the Product with a rebuilt, reconditioned or new Product.

All replaced Products, parts, components, boards and equipment shall become the property of Elecraft except to any extent expressly allowed by applicable law, transfer or assignment of this Limited Warranty is prohibited.

While equipment is under warranty, owner pays inbound shipping to Elecraft for warranty repair. Elecraft will pay return shipping by UPS ground service or equivalent to addresses within the continental U.S.  Alaska, Hawaii and outside U.S. return shipping cost is paid by owner. See below for instructions on contacting Elecraft for product repairs.  Shipping cost for equipment repair not under warranty is the responsibility of the owner. 

IMPORTANT Instructions

You must contact Elecraft, before mailing us your product to obtain authorization for the return, shipping address and current information on repair fees and turn-around times. You may contact us by email at Shipping instructions will be included with Repair Authorization. We have more than one repair location, so please ship to the address included with the repair authorization.  Packages shipped without authorization will incur an additional shipping charge for reshipment to the correct repair location.

Our basic repair / alignment charge is $99.00, plus return shipping. If you wish, you may set a limit for the repair charges, and we will contact you when we have reached that point before proceeding.  If we determine the problem is wholly due to a defect in components supplied by Elecraft (within the warranty period), we will not charge you for the repair. Please read the warranty information above for additional details on what is covered.

Contact Customer Support for the Repair Authorization before shipping your equipment for repair.  You may email Customer Support at to request an authorization form.