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Elecraft KX3 Preview
KX3 STANDARD FEATURES
- 160-6 meter ham bands; general coverage from 1.6-30 MHz (optional broadcast-band filter module covers 0.5-1.6 KHz)
- 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
- Narrow roofing filter option with four bandwidths (500Hz, 1500Hz, 2700Hz, 3800Hz) for excellent dynamic range
- Switchable preamp (2 levels) and attenuator (2 levels)
- 8-band receive audio equalizer
- Dual watch over ±10kHz range; uses applicable roofing filter
- Easy-to-use PassBand Tuning (PBT) for shift/width/hi-cut/lo-cut; 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
TRANSMITTER
- Adjustable output, 0.1 to 10W+ (100W+ with KXPA100 amp)
- Rugged, SWR and temperature-protected final amplifier stage
- Optional MH3 microphone with PT 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 speech processing for excellent “punch”
- 8 band equalizer tailors passband to your voice and microphone
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 VFO A/B, modes, etc.
- Accessory/RS-232 port for computer control using supplied cable
- 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)
- Optional mobile bracket compatible with RAM-mounts
- Tutorial-style manual ideal for new hams
OPTIONS and ACCESSORIES
- KXFLE Roofing Filter Module (500/1500/2700/3800 Hz)
- KXAT3 Internal, Wide-Range 20-W Automatic Antenna Tuner
- KXAM3 Broadcast Band Filter Module (0.5-1.6 MHz)
- KXBT3 Internal 8-AA Cell Battery Pack with NiMH Charger (Batteries not supplied; nonrechanrgeable batteries can also be used)
- KXPD3 Precision Keyer Paddle
- KXMM3 Mobile Mount Bracket
- MH3 Hand Microphone with UP/DN Controls
- KUSB RS232 to USB Adapter
- KXPA100 High-Performance 160-6 meter, 100-W Amplifier; usable with most 5 to 10 W transceivers KXAT100 Wide-Range 100-W ATU with Dual Anenna Jacks (attaches to KXPA100 module)
Rumors of my death have been greatly exaggerated…
I’ve been QRT (both radio- and blog-wise) for quite some time as the XYL and I have been planning and, over the past week, executing a move from Robinson to the charming little town of West, TX — that’s West (comma) Texas, population 2,690, which despite the name is nowhere near “West Texas” but just a dozen miles or so north of Waco in the central part of the Republic. According to the FCC database there are 18 licensed amateurs in West, including your faithful correspondent.
The new QTH is an old but freshly renovated 3 bedroom house with a detached garage and (praise Jesus!) trees, giving me antenna possibilities that did not exist at our suburban-hell duplex in Robinson. There’s a tripod already on the roof; it’s not exactly heavy-duty but it should be adequate for a vertical. Whether I’ll put the Cushcraft R7000 back into service or simply mount the Tarheel on the roof remains to be decided. One of my priorities is to at least get a dipole strung up for 6/10/12 meters. Not yet sure if there’s room for an 80m wire.
The shack/office is about the same size and layout as at the last QTH. There’s a large walk-in closet that I will use as a library to store some of the 8.6 million books that I seem to have acquired over the years and which I hope to have moved for the last time. I no longer have a loud central air conditioning unit outside the window of the office; however, I now live across the street from the main Union Pacific train line that runs through the middle of the state. Being a lifelong fan of model railroading but never having the room, tools or skills to build the N-scale layout of my dreams, I can now enjoy a 1:1 scale road with regular trains that shake the entire house about a dozen times a day like a coin-operated bed in a cheap motel. Must remember turn the VOX off when I’m not at the radio.
Since we’re still living out of boxes it may be some time yet before I can get the shack reassembled, antennas installed, and return to the bands — needless to say, the IARU HF contest is going to have to get along without WW2PT’s big signal, and the IOTA test in a couple of weeks will be a long shot, but I fully intend to be up and running in time for NAQP in August.
Rumors of my death have been greatly exaggerated…
I’ve been QRT (both radio- and blog-wise) for quite some time as the XYL and I have been planning and, over the past week, executing a move from Robinson to the charming little town of West, TX — that’s West (comma) Texas, population 2,690, which despite the name is nowhere near “West Texas” but just a dozen miles or so north of Waco in the central part of the Republic. According to the FCC database there are 18 licensed amateurs in West, including your faithful correspondent.
The new QTH is an old but freshly renovated 3 bedroom house with a detached garage and (praise Jesus!) trees, giving me antenna possibilities that did not exist at our suburban-hell duplex in Robinson. There’s a tripod already on the roof; it’s not exactly heavy-duty but it should be adequate for a vertical. Whether I’ll put the Cushcraft R7000 back into service or simply mount the Tarheel on the roof remains to be decided. One of my priorities is to at least get a dipole strung up for 6/10/12 meters. Not yet sure if there’s room for an 80m wire.
The shack/office is about the same size and layout as at the last QTH. There’s a large walk-in closet that I will use as a library to store some of the 8.6 million books that I seem to have acquired over the years and which I hope to have moved for the last time. I no longer have a loud central air conditioning unit outside the window of the office; however, I now live across the street from the main Union Pacific train line that runs through the middle of the state. Being a lifelong fan of model railroading but never having the room, tools or skills to build the N-scale layout of my dreams, I can now enjoy a 1:1 scale road with regular trains that shake the entire house about a dozen times a day like a coin-operated bed in a cheap motel. Must remember turn the VOX off when I’m not at the radio.
Since we’re still living out of boxes it may be some time yet before I can get the shack reassembled, antennas installed, and return to the bands — needless to say, the IARU HF contest is going to have to get along without WW2PT’s big signal, and the IOTA test in a couple of weeks will be a long shot, but I fully intend to be up and running in time for NAQP in August.
My NRD-525 and other goodies are on the block…
Fiscal realities are forcing me to sell off more of my JRC collection, this time a mint, new-in-box, untouched-by-human-hands NRD-525 HF Receiver along with likewise mint CMK-165 VHF/UHF Converter and CFL-232 500 Hz Crystal Filter. All three now on eBay as separate auctions.
March 2010 Wrap-Up
All | 80m | 40m | 30m | 20m | 17m | 15m | Ph | CW | Dig | |
DXCC | 83 | 2 | 43 | 10 | 67 | 13 | 38 | 59 | 5 | 63 |
WAS | 50 | 28 | 49 | 7 | 48 | 19 | 21 | 43 | 1 | 50 |
WAZ | 26 | 3 | 21 | 8 | 23 | 9 | 18 | 22 | 5 | 22 |
WebSDR
My bud Ulis K3LU just turned me onto the WebSDR project. Spent a little time this morning listening to W4MQ’s station, which is set up for 160m, 40m, and 20m. Very impressive — I’ve steered clear of online remote receivers in the past because they were typically a single radio controlled by a single user at a time (or, worse, by multiple users continuously changing frequency and mode, making it little more than an exercise in hi-tech uselessness). But this is different — a true server that lets multiple people listen at the same time on whatever band/frequency/mode they want, completely independent of one another. Way cool.
NCJ: What’s the Best Contest Rig?
The March/April 2010 National Contest Journal arrived yesterday, torn and tattered as always (thanks again, US Postal Service!), and with it the results of K3MD’s informal poll of top contesters asking, “What’s the best contest rig?” It’s by no means a scientific survey, nor all-inclusive, but many of the Big Guns you’d expect participated.