Info on Schurr Key

• Rugged, attractive custom enclosure

• Small, portable size: 2.9h x 7.8w x 8.2d inches 

• Weight 3.3 lbs. (excluding internal options) 

• 80-10 meter ham band+ coverage; 160 m optional 

• Efficient 12 Volt (10 - 15 V) operation for home or field 

• Receive current as low as 150 mA (battery save mode) 

• CW-only or SSB/CW + Digital Modes with SSB option 

• Back-lit LCD and LED bargraph; day/night settings 

• PLL synthesized--low phase noise 
  Microprocessor controlled 

• 3 transverter bands; programmable display, I.F., power 

• Dual VFOs with split operation. 

• Direct keypad entry of frequencies and memory channels. 

• RIT and XIT with four offset ranges 

• Built-in high-efficiency speaker 

• Memories store mode, VFO A/B, split, RX filter, etc. 

• Simple menu system for advanced settings. (Up to two menu functions can be assigned to the two programmable front panel function keys.) 

• Room for additional connectors on the rear panel 

• Smart ‘hunt and pounce’ band-scanning mode 

• Low-noise, single-conversion superhet receiver 

• Double-balanced diode mixer for excellent dynamic range

• Receive sensitivity: 0.15 uV (pre-amp on, typical.)

• Narrow ham-band, double-tuned bandpass

• RX/TX filters, relay switched for better IMD response

• Smooth, fast attack, I.F.-derived AGC (no "popping") 

• Switchable preamp and attenuator

• Variable-bandwidth I.F. crystal filtering 

• Multiple VFO tuning rate selections 

• 10 Hz tuning resolution 

• Bar graph S/RF OUT/ALC meter 

• Adjustable squelch 

• Adjustable 0.1-15 W (K2), 0.1 – 100W (K2/100)

• Rugged, SWR-protected, push-pull PA transistors 

• Programmable current limit for battery operation 
• Harmonics and spurious outputs: Better than –40 dBc 

• Full diode switched break-in with variable QSK delay (Both at QRP and 100W levels)

• 9-memory keyer; iambic A and B; adjustable weight 

• 9-50 wpm (internal keyer); 70+ wpm (external keying) 

• Programmable message repeat interval 

• Simultaneous computer and paddle CW keying inputs

• Variable bandwidth crystal filter (approx. 200 - 2000 Hz)

• Adjustable RX CW offset with tracking TX side tone.

• Selectable opposite sideband RX for QRM reduction 

K2 and Accessories

Click on underlined part numbers for details.

K2

 HF Transceiver

KAT100-1

KPA100

KAT100-2

KSB2

KAT100PNL

K160RX

KBT2

Internal Battery Kit

KNB2

KBT2-X

KDSP2

BATT

KAF2

EC2

KIO2

ETS15

KAT2

ETS2

Microphones

The KPA100 allows you to complete your K2 as a K2/100 full featured 100W HF transceiver. The kit of internal parts and heatsink fit totally inside the K2. The KPA100 also includes SWR / Power metering, microprocessor controlled PIN diode switched T/R, an internal speaker and a RS-232 Aux I/O computer control rig  interface (equivalent to the KIO2). (Not compatible with other radios.)

Proset-K2 Headset with Heil Elements

This microphone is the result of a collaboration between Bob Heil of Heil Sound and Elecraft. They all use the Heil high performance condenser element which is optimally matched to the K2 and provides excellent SSB audio quality.

The Elecraft KDSP2 brings versatile, high-performance digital signal processing (DSP) technology to the K2 and K2/100 transceivers.

12 Unique filter settings! The KDSP2 provides up to four user-configurable filters in each mode (CW/SSB/data), complementing the K2's variable-bandwidth crystal filter. CW filter settings include center frequency and bandwidth, with "hard" and "soft" filter algorithms and bandwidths as narrow as 50 Hz. SSB filters provide programmable low and high cutoff frequencies. Four levels of noise reduction are available in CW and SSB modes.  SSB mode includes an automatic notch filter. The KDSP2 is unique in that noise reduction and auto notch parameters can be modified through the menu to suit the operator.

The KDSP2 and the KAF2 (below) use the same connector and can not be installed at the same time.

KAF2 Audio Filter and Real-Time Clock

The KAF2 provides an elliptic, L-C low-pass filter, and a narrow band-pass filter for CW or data use. The low-pass filter rolls off noise and high-frequency QRM while having no impact on speech or data signals. The low-noise, two-stage, active band-pass filter helps pull in weak CW signals, and can be turned on or off from the front panel.

In addition to two audio filter settings, the KAF2 includes a real-time 24-hour clock/calendar with its own multi-year backup battery. Just tap the DISPLAY button to see the time or date on the K2's LCD! Great for field trips--no need to take along a digital clock. Supports MM/DD and DD/MM date formats.

The KAF2 and the KDSP2 (above) use the same connector and can not be installed at the same time.

KSB2 SSB Adapter

The KSB2 adds SSB and data modes to the basic K2 transceiver. Includes an optimized, 7-pole, 2.2-kHz crystal filter. Can be used with nearly any dynamic or condenser microphone.

KNB2 High Performance Noise Blanker

The KNB2 eliminates most pulse-type noise, including that from power lines.

K160M 160M and 2^nd RX Port

Adds 160 meters TX/RX and a 2^nd RX antenna input (usable for all bands). Also supports transverters needing split TX/RX paths.

KIO2 RS-232 Interface and Aux I/O 

You'll be able to do full computer control of the K2 with the KIO2 installed, and you won't need an external level converter, since the KIO2 provides true RS-232 levels. Compatible with most contesting and logging software, as well as our own K2VOICE and K2REMOTE programs. The KIO2 Programmer's Reference provides extensive information for those writing custom K2 control programs. 

Note: The KPA100 option for the K2/100 includes a RS-232 interface. The KIO2 is only needed for the base, 15W  K2, without the KPA100.

KAT2 Automatic Antenna Tuner

The KAT2 allows you to connect nearly any antenna directly to the K2 and use it on all bands (160-10 m). Two antenna jacks are provided--instantly A/B test both antennas on any signal using the ANT 1/2 switch. Uses all latching relays, so current drain is zero except when tuning.

The KAT100 is an ideal match for the K2/100, and will also work with the K2. It can easily handle 150 watts, and its 10 LEDs accurately monitor SWR during transmit. Like the KAT2, the KAT100 includes two antenna jacks--it's like having two ATUs in one.

KBT2 Battery

With the KBT2 installed, the K2 becomes the ultimate all-band field radio. Rated at 2.9 AH, the gel-cel battery is extremely safe, and can be recharged inside the K2 continuously from the same DC supply used to power the rig at home. Power outage? No problem--you'll never miss a beat! (KBT2 not available for K2/100.)

EC2 Custom project enclosure

3"H x 8"W x 8"W  (Same size, color and finish as the K2)

K2/100 Review - November, 2002, CQ Magaine (.pdf)

QST K2 Product  Review  March 2000

(Now no password required! OK to print.)

The DX Prowess of HF Receivers,  Sept./Oct. 2002 QEX Magazine.

K2/100 Reviews at eHam.net

K2 Reviews at eham.net  

(HF Rigs)

K2 Reviews at eham.net  

(QRP Rigs)

Secure Order Page and Price List

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