HIGH-PERFORMANCE DIRECT-SAMPLING SDR
Our new K4 doesn’t just harness the latest technology: it blends new tech with a classic user interface to create a transceiver that’s more than the sum of its parts. One that’s sophisticated, yet civilized.
Like you, we’ve witnessed the recent revolution in direct sampling and SDRs. But rather than rush toward change, we’ve been observing — saving the best ideas, testing them, and quietly merging them into a new kind of radio. The resulting modular, hybrid design is innovative and versatile, yet still a pleasure to use.
In particular, operators who’ve used our K3S transceiver and P3 panadapter will find the K4’s controls familiar, and its complement of I/O compatible with their existing station. But they’ll also discover a new level of convenience in the bright, 7” touch display, which combines a large panadapter with three intuitive multi-function controls. Everything you need is at your fingertips, including a unique built-in help system.
Three K4 Flavors
There are three K4 models to choose from: the basic K4; the K4D, which adds diversity receive capability; and the K4HD, which goes a step beyond other direct-sampling SDRs, adding a dual superhet module for the ultimate in blocking and close-in dynamic range.
A basic K4 can be easily upgraded to a K4D at any time by adding the KDIV4 option.
Similarly, a K4D can be upgraded to a K4HD by adding the KHDR4.
The K4 and K4D, like other “pure” direct-sampling radios, do not require crystal roofing filters. Digital signal processing is used to provide advanced demodulation, filtering, and signal display. The K4HD can operate either in direct-sampling or superhet mode. Typically the latter is only needed in the presence of extreme signals.
Modularity that Adapts to Your Needs
Flexibility — now and in the future — was a major design goal for the K4. All of Elecraft’s transceivers embody this philosophy. You can tailor the radio to your current needs, with one of the three models described above as well as other options. But you’ll also be ready to take advantage of new technology that in some cases hasn’t even been invented. Modules are segmented strategically to allow updates at a moderate cost so you won’t have to invest in a new radio every couple of years. Elecraft also listens to its community: the best ideas often translate into new options and software features.
Advanced Remote Control, Host Interfacing, and Display
With the K4, you can operate at the radio itself or from anywhere — whether it’s your living room, back porch, or halfway around the world. One K4 can control another, including streaming panadapter display. you can also use a tablet, netbook, or desktop PC. When operating the radio directly, you can use both the built-in LCD and an external monitor (HDMI), with different content.
Application programmers will benefit from the K4’s rich, yet easy to use command set, including many new commands for setting up panadapter and audio streams.
Brochure:See here for the Elecraft Brochure.
7 BAND HF COBWEB ANTENNA – 1 KW
COBWEB ANTENNA Multiband cobweb antenna works on 7 HF bands and up to 1000w. Bands are 14,18,21,24,28,50,70 MHz Built and modified by me for my friend... Read more
S.P.E Expert has been selected as the exclusive amplifier for the Bouvet DXpedition
This week we rcvd 4 x S.P.E amplifiers in Oslo. All amplifiers have been fully serviced for free at the factory in Italy, and some minorcomponents hav... Read more
CW QSO Simulator for iPhone and Android
This app is a real CW QSO simulator for ham radio operators. Supports “599BK style QSO”.In order to reproduce a realistic QSO environment,... Read more
ICOM will announce news at Hamvention
This morning Icom announced that it will have “new and exciting is on the horizon” during Dayton Hamvention 2022 Will it be a new HF or VH... Read more
Annual Armed Forces Day Cross-Band Exercise Set for May 14
The US Department of Defense will host this year’s Armed Forces Day (AFD) Cross-Band Test on Saturday, May 14. While Armed Forces Day is May 21, the A... Read more
Antenna Genius
Did you know that Antenna Genius can be combined into a super switch matrix, expanding on the number of either antenna ports or the number of radios?... Read more
Global Radio Guide: Summer 2022
Global Radio Guide During times of crisis, radio hobbyists turn on their radios and tune to the shortwave “Global Radio” bands for context, perspectiv... Read more
DIAMOND HF MOBILE “CL” SERIES ANTENNAS
The Diamond HF Mobile “CL” Series Antennas are a bit special. Centre Loafing is claomed to be superior to base loafing. Peter G3OJV, tests... Read more
Diamond D3000N Super Discone Ultra-Wideband Antenna
“In this video we cover the assembly, installation and testing of the 3000N Discone for use on an SDR and home scanner.” Ultra-wideband de... Read more
How to use Hamsticks in different ways for use on the HF bands in Ham Radio
In this video I show different antennas including Hamsticks to have an economical way to get on the Ham Bands. Hamsticks are mono band HF antennas tha... Read more
uSDX+ v2 8 – HF TRANSCEIVER
uSDX Here we take a look at the uSDX+ Version 2 8 Band All mode HF Transceiver with Surprising Results! it is optimized fromuSDX QCX-SSB ope... Read more
Canadian amateurs to use special prefixes for Platinum Jubilee
Canada’s radio amateurs will be using the prefixes XK, XJ, VG and VX from May 15 to July 14 to celebrate the Platinum Jubilee of Queen Elizabeth... Read more
microHAM to be Sold Exclusively in North America by DX Engineering
Posted by Wayne KE8JFW WiMo of Herxheim, Germany, has appointed DX Engineering as the sole North American distributor of contesting and DXi... Read more
Mobile App Available to Navigate 2022 Dayton Hamvention
Dayton Hamvention® is offering a free mobile app for smartphones and tablets to help attendees navigate the large-scale event, which runs May 20 – 22... Read more
RC-1 Quick Remove Antenna Support
RC-1 is designed for ICOM IC-705 portable transceiver with desktop type quick disassembly antenna bracket. The aluminum alloy is refined by CNC machin... Read more
mercuryAT available in the next few days
List Price $795.00 km3km.com Read more
Messi & Paoloni Is Better Than LMR Coax
“Yes, it sure is. Comparing the losses between Messi & Paoloni & LMR Coax cables. The numbers don’t lie in this heated battle betw... Read more
ARI International DX Contest 2022
1. The Associazione Radioamatori Italiani (A.R.I.) has the honour of inviting radio amateurs from all over the world to participate in... Read more
Ameco AC-1T Unboxing
Ameco was an old Ham Radio company that existed back in the 50s. Now it is being remade as a sort of modern, vintage radio with all the traditional tu... Read more
Uniden SDS100 Handheld Scanner, True I/Q Technology
“Today I’m taking a look and unboxing the Uniden SDS100 handheld scanner. Using True I/Q technology, it will pull in signals even in the w... Read more