KX3 a SDR with a ØHz IF (Direct Conversion) – QST Magazine reviews the Elecraft KX3 HF and 6 Meter QRP 10W on Dec., 2012 by W1ZR, Joel and K1RO, Mark. – IMD3 dynamic range, Blocking gain compression and Reciprocal mixing it is at the “top of the heap”! – See below the QST 14MHz Key Summary and Internal pictures. Watch the Video KX3 with iSDR app. Link to Schematics & Block Diagram pdf !
QST 12月号のProduct ReviewにKX3が掲載されます。
See the December 2012 issue of QST magazine for the complete review and ARRL Lab test results – [Note] Area Members Only.
Link to: ARRL – American Radio Relay League for Amateur Radio
The authors write: To say that the KX3 is a Direct Conversion Radio misses the point. It would probably be more descriptive to say that the KX3 is a Software Defined Radio (SDR) with a Ø Hz IF and I/Q quadrature component receiver processing that provides single-signal reception. Those signals allow a PC running your SDR software to display the spectrum and usual rig control management. – Elecraft provides your choice of a cable that connects to a PC USB2 port or an RS-232 socket (add. $29.95 or so!) -
Link to: Elecraft KX3 the Schematics & Block Diagram pdf (ENG)
Link to: Elecraft KX3 Datasheet (pdf 5.5MB) ver. May 2012 (ENG)
Source: QST Reviews, we show only… the Key figures at 14 MHz
How To Connect Elecraft KX3 To iPad by WD9E - This video shows how to use the iSDR app with the Elecraft KX3 SDR Transceiver – (a great video, thanks WD9E!)
[Note] All marks are property of their respective owners. – Specifications are subject to change without notice! - This page is just a non-official overview, where no one should draw any conclusions. - Non si assume alcuna responsabilità per eventuali inesattezze nella visualizzazione dei dati e notizie. (Tnx)
Elecraft ® K3 Transceiver: new Custom 700 Hz 8-Pole Roofing Filter by INRAD a useful CW/DATA filter bandwidth (…500 Hz Olivia modes etc!) and helpful for non-pileup DX work – New KAT500 Auto-Tuner that can be used with both the K3 – KPA500 and all other HF – The K3-Remote & K3/Ø ! – See the news and link below !
unpcbs™ (trademarks of Ken Kaplan and Gary Hvizdak) writing this: 6 November 2012 – Instead of requiring 20 preorders (as we had originally advertised), we have decided to commission the third batch of 700 Hz Elecraft® K3 filters when we reach 14 preorders.
At the current average monthly preorder rate, that should happen within a few weeks at most and possibly within a few days.. etc.
Read more news, Term of Sale, Frequently Asked Questions and App Notes by link
Link to official web-page unpcbs™ 700 Hz Elecraft® K3 filters
KAT500 Auto-Tuner & Smart Antenna Switch - (Source Elecraft ® website)
The new KAT500 uses the same topology and performance tuning algorithms as the 100W autotuner in the K3. Typical matching range at 500 W is up to 10:1 on most bands.
Frequency Typical Matching Range and Power Limit:
1.8 — 2MHz 600W into 10 to 500 Ohms (5:1 Low Impedance, 10:1 High Impedance SWR) / 3 — 30 MHz 600W into 5 to 500 Ohms (10:1 SWR) / 1000W into 16 to 150 Ohms (3:1 SWR ) / 1000W into 16 to 150 Ohms (3:1 SWR ) and 30 — 60MHz 500W into 5:1 SWR (10 to 250 Ohms)
The KAT500 measures transmit frequency to automatically select tuning memories and antennas – The KAT500 can tune with 10 W but we recommend 20 W to 100 W for best tuning accuracy – The KAT500 has a front panel SWR display and three selectable antenna outputs. -
Link to: Elecraft ® KAT500 official web-page
Link to: Elecraft ® KAT500 Owner’s Manual
Elecraft ® K3-Remote (including K3/Ø Remote control Head !) - This may include:
- Two RemoteRig RRC-1258MkII (picture below) units that provide the interface to the internet; one for the remote location and one for the local (control) location
- RRMTCBL cable set to connect the remote RRC-1258 unit to the remote K3.
- K3/0 Remote control Head.
- RRK0CBL cable set to connect a local K3/0 as the controller.
- RRK3CBL cable set to connect a local K3 as the controller.
When paired with the RemoteRig internet control system (also sold by Elecraft®) this K3 Remote system can connect your local K3 or K3/Ø to a remote K3 over the internet, including transmit and receive audio, without the need or complexity of setting up computers on each end. The K3 Remote system provides a real radio feel with immediate control feedback and very fast response times
The K3/Ø, or a regular a K3 in ‘terminal mode’, provides a unique real time remote control experience for operating a K3 located in the next room, or across the country. – [Note] The latest K3 firmware supports a compact remote control serial protocol – (Source Elecraft ® website)
[Note] All specifications are subject to change without notice – All trademarks belong to their respective holders - These events and news are reported for information only!
STØR – The first DX-pedition in Southern Sudan has finished its work. Excellent result of all the teams: Totale QSO’s 121.286 in Database – 27.994 Unique Callsigns – 176 DXCC – 40 CQ Zones - last QSO at 10/08/2011 @ 07:01. – Thanks to: DXFriends, Intrepi-DX, Sponsors and the teams.
STØR - La prima DX-pedition in Sud Sudan ha terminato la sua missione. Un ottimo successo dei due team: complessivamente 121.286 QSO nel STØR Database – 27.994 Unique Callsigns – 176 DXCC – 40 CQ Zones – ultimo QSO alle ore 07:01 del 10/08/2011 poi QRT - Grazie a: DXFriends, Intrepi-DX, agli Sponsors ed ai teams, compreso l’operatore italiano IN3ZMR, Fabrizio (qui sotto la sua foto selezionata dal sito web ufficiale)
Qui di seguito due immagini, tratte dal sito ufficiale www.dxfriends/SoutherSudan2011 per soddisfare una prima curiosità, infatti si possono vedere una parte degli apparati che la DX-Pedition ha dichiarato di utilizzare in queste settimane di intenso traffico, compresi i 6mt, oltre naturalmente per mettere in evidenzia l’operatore italiano che fa parte del team DXFriends:
Transceivers: 1 x IC-7000 2 x IC-7200 Icom e 3 x K3 Elecraft - Amplifiers: 2 x Acom 1010 and Others, tutto il resto e le antenne, dalle Hexbeam alle Spiderbeam ecc. sono sul sito ufficiale.
The new Elecraft KX3 only 0,7 kg! - Totally different architecture than the Elecraft K3, of course (Wayne N6KR) – Availability towards end of 2011. – Firmware updateable – Large custom LCD – The revolutionary Elecraft KX3 puts the world in the palm of your hand! (Soursce: Elecraft US)
KX3 Ultra-compact 10W, 160-6m transceiver a 32-bit DSP/SDR IQ, all modes SSB/CW/AM/FM/DATA (including built-in PSK31 and RTTY encode/ decode) – The optional KXPA100 100W amplifair with ATU is in an external box. -!! See the video below for a pretty outline of features by N6KR, Wayne. – - (Click the mini-picture to enlarge front panel)
KX3 Preliminary informations: Quadrature down-sampling mixer compatible with PC-based SDR applications – Receiver I/Q outputs for use with PC saundcard – Narrow roofing filter option with four bw (500 Hz, 1500 Hz, 2.7 kHz, 3.8 kHz) - Switchable Pre-amp (2 levels) and attenuator (2 levels) -
Advanced DSP provides dual watch over +/- 10 kHz range, PBT for Shift/Width/Hicut/Loct, noise reduction, noise blanking, autonotch – Software-defined radio (SDR) architecture plus Roofing filter (KXFL3) for excellent dynamic rang – Operate in data mode (PSK31/RTTY) with or without a PC – For extreme portability, you can add the internal wide-range ATU, 8-AA cell battery pack with NiMH charger, and adjustable KXPD3 keyer paddle !!
Sulla rivista della ARRL, QST di aprile 2008 è riportata la Review del Transceiver HF 50MHz della Elecraft Mod. K3, con risultati impressionanti per l’alta qualità delle misure Two-Tone IMD Testing, IP3, Blocking gain compression: 20/5/2 offset: 139/139/139 dB! and Reciprocal Mixing (500HzBW) 20/5/2 offset: -116/-106/-95 dBc. Testing QST open version with permission from ARRL
Link to: Download the ARRL QST Elecraft K3 Review (.pdf)
ENG: The Elecraft Mod. K3 is all modes SSB, CW, Data, AM, FM 100W (or 10W upgradeable) models, 32-Bit floating point IF DSP, High performance DDS/PLL synthesizer with TCXO, Built-in PSK RTTY decode/encode allows data mode operation with or without a PC and more;