[Elecraft] New Elecraft Product: KX1 Ultra-portable HF QRP Transceiver

Eric Swartz WA6HHQ - Elecraft [email protected]
Fri Sep 5 23:33:00 2003


The Elecraft KX1 is a very compact, multi-band CW transceiver optimized for 
backpacking and travel use. With internal battery, internal automatic antenna 
tuner, plug-in keyer paddle, and log-book lamp, it offers a high level of 
integration. The enclosure measures just 1.2 x 3 x 5.3 inches (3 x 7.5 x 13 
cm), and the transceiver weighs just 9 ounces (11 ounces with both the 
optional ATU and keyer paddle installed).

Unlike most transceivers, the KX1�s controls are located on the top of the 
cabinet, and the keyer paddle attaches at the front. This �trail-friendly� 
format is ideal for hand-held or lap-top operation, e.g. when sitting on the 
ground, using a camp chair, reclining, or even standing. The KX1 is also at 
home on a table, providing an optimal viewing angle without a tilt stand. The 
unique plug-in keyer paddle is angled at 45 degrees for ease of use and is 
both physically and electrically reversible for right- or left-handed operators.

The transceiver covers the full 40 and 20 meter bands, and optionally 30 
meters. The VFO uses a DDS (direct digital synthesis) IC, so it can also tune 
nearby SWL band segments. A variable-bandwidth crystal filter permits 
reception of SSB and AM as well as CW. This facilitates cross-mode contacts 
and reception of HF AM broadcast stations.

The KX1�s internal six-cell battery pack can be changed in seconds with the 
removal of two thumb screws. The battery provides 1 to 2 watts power output. 
An external 12 V supply increases output to about 4 watts. Low receive-mode 
current drain (34 mA typ.) results in internal battery life of 20 hours or 
more during casual operation.

The KX1 uses a highly-efficient 3-digit LED display that adds just 1 to 2 mA 
to total current drain in moderate lighting conditions. The operator can 
adjust both the display brightness and off-timeout (after last keypress). 
Operation  without the display is possible if the CW feedback feature is 
turned on. This provides audible readout of the VFO frequency and other 
information.

Additional features include frequency memories, three VFO tuning rates, RIT, 
and S-meter display. The built-in keyer offers Iambic modes A and B and two 
message buffers. In an emergency, two front panel switches can be used as a 
keyer paddle or manual key.

The KX1 is suitable for first-time builders. The basic unit consists of a 
single printed circuit board, with no surface mount components to install (the 
three surface mount parts used are pre-installed).

The KX1 kit sells for $289. First shipments will commence at at the Pacificon 
convention, Oct. 17-19th, and the week following.

For more information on the KX1, including pictures, data sheet and on line 
ordering see the KX1 page at: http://www.elecraft.com