Posts
DXER ham radio news
Southgate ARC - What a super, super Sunday. The rest of the week wasn’t too bad either.
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DXER ham radio news
Southgate ARC - In this episode, Martin M1MRB is joined by Chris Howard M0TCH, Martin Rothwell M0SGL, Frank Howell K4FMH and Dan Romanick KB6NU to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is the WOLFWave Audio Processor by Martin Butler M1MRB
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DXER ham radio news
Southgate ARC - The largest ever ICQ Amateur / Ham Radio Podcast team of presenters will be attending Hamvention on Friday 17th and Saturday 18th May 2018
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DXER ham radio news
Southgate ARC - The 200th registration for this year’s International Lighthouse Lightship Weekend has just been received and it is from Latvia which is a rare country for the event and a new lighthouse as well
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DXER ham radio news
Southgate ARC - On February 26 a question from the EU Parliament concerning pollution of the radio spectrum by Powerline modem (PLT) devices was submitted to the EU Commission
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DXER ham radio news
Many thanks to SWLing Post contributor, Pete Eaton, who writes:
Don’t know if you are familiar with this project, a full blown 5 watt HF SDR Transceiver for less than $300!
No sound cards, DUC/DDC architecture.
Here’s the project description by Steve Haynal via YouTube:
The Hermes-Lite is a low-cost direct down/up conversion software defined amateur radio HF transceiver based on a broadband modem chip and the Hermes SDR project. It is entirely open source and open hardware, including the tools used for design and fabrication files. Over 100 Hermes-Lite 2.0 units have been successfully built.
The FOSSi Foundation is proud to announce Latch-Up, a conference dedicated to free and open source silicon to be held over the weekend of May 4th and 5th in Portland, Oregon, USA. Latch-Up: a weekend of presentations and networking for the open source digital design community, much like its European sister conference ORConf. Produced by NDV.
Click here to view this presentation on YouTube.
Fascinating! Thank you for sharing, Pete!
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DXER ham radio news
Southgate ARC - I recently visited the Edward R. Murrow Transmitting station near Greenville, NC and posted a photo tour on the SWLing Post
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DXER ham radio news
Moved Temporarily
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DXER ham radio news
(via Southgate Amateur Radio News)
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DXER ham radio news
Amateur Radio News - Ham Radio Library
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DXER ham radio news
ARRL -
An erroneous report this week suggested that the FCC planned to again impose an Amateur Radio vanity call sign application (regulatory) fee of $70 for the 10-year term. This incorrect conclusion resulted from an incomplete reading of the May 7 FCC Notice of Proposed Rulemaking (NPRM) in the matter of the assessment and collection of regulatory fees for fiscal year 2019.
Although the Schedule of …
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DXER ham radio news
An erroneous report this week suggested that the FCC planned to again impose an Amateur Radio vanity call sign application (regulatory) fee of $70 for the 10-year term. This incorrect conclusion resulted from an incomplete reading of the May 7 FCC Notice of Proposed Rulemaking (NPRM) in the matter of the assessment and collection of regulatory fees for fiscal year 2019.
Although the Schedule of …
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DXER ham radio news
An erroneous report this week suggested that the FCC planned to again impose an Amateur Radio vanity call sign application (regulatory) fee of $70 for the 10-year term. This incorrect conclusion resulted from an incomplete reading of the May 7 FCC Notice of Proposed Rulemaking (NPRM) in the matter of the assessment and collection of regulatory fees for fiscal year 2019.
Although the Schedule of Regulatory Fees does show a $7 annual fee for Amateur Radio vanity call signs, a boldface heading in that section of the NPRM states, “REGULATORY FEES. This section is no longer is effect as it has been amended by RAY BAUM’S Act of 2018…” Section 9(e)(2) of RAY BAUM’S Act gives the Commission discretion to exempt a party from paying regulatory fees when the FCC determines that the cost of collection exceeds the amount collected. A new section 9(e)(1) incorporated the Amateur Radio vanity fee exemption from FCC rules into the statute.
The NPRM makes clear in several other places that regulatory fees no longer apply to Amateur Radio licenses. The FCC eliminated the regulatory fee for Amateur Radio vanity call signs in 2015.
Source:ARRL
Antenna
6 el 50MHz LFA-R reflectorless Yagi
6 el 50MHz LFA-R reflectorless Yagi
February 14, 2015 No comments
Description The new LFA-R reflector-less Yagi is a step forward in Yagi design and performance. Excellent levels of gain per foot of boom from this co… Read more
DX Engineering Skylark Dual-Band Yagi Antenna DXE-2X7
DX Engineering Skylark Dual-Band Yagi Antenna DXE-2X7
April 09, 2015 No comments
Antenna, Beam, Skylark, Duoband Yagi, 17 and 12 meters, 90 mph Wind Rating, 16 ft. Boom Length, Each HF Beam Antenna Type:Yagi HF Beam Antenn… Read more
Cushcraft MA6VA – Six-Band Restricted-Space Vertical Antenna
Cushcraft MA6VA – Six-Band Restricted-Space Vertical Antenna
August 13, 2015 No comments
The Cushcraft MA6VA provides amazing coverage, great versatility and incredible performance with an addition of 6 meters. Enjoy the antenna con… Read more
Hybrid Double Quad Antenna 2m 2/HDQ5
Hybrid Double Quad Antenna 2m 2/HDQ5
April 12, 2015 No comments
HYBRID DOUBLE QUAD ANTENNA 2M Double quad antenna amateurradio 2m Antenna for Amateurradio, Hamradio 2m-band VHF (frequency 144.000 MHz – 146… Read more
App - Mobile
Ham Radio Prefixes – Android App
Ham Radio Prefixes – Android App
October 12, 2014 No comments
Enter a call sign and get immediately all the geographical informations (country, ITU zone, CQ zone, GMT). Google Play: https://play.goo… Read more
RUMlogNG2Go for iOS version 3.3 now available
RUMlogNG2Go for iOS version 3.3 now available
February 03, 2017 No comments
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.3 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be do… Read more
Training fast CW on Android (Koch method)
Training fast CW on Android (Koch method)
March 12, 2015 No comments
The user starts by recognizing only two letters, M and K, at high speed (at least 20WPM) on a 5 minutes session. When she or he will be able… Read more
My LoTW – Free app for iOS and Android
My LoTW – Free app for iOS and Android
June 08, 2016 No comments
My LoTW is a viewer app for ARRL’s Logbook of the World. With My LoTW, you can: – View all the QSOs you have submitted to LoTW. –… Read more
Equipment
KX-QRP 2nd Look – Elecraft KX2 or KX3
KX-QRP 2nd Look – Elecraft KX2 or KX3
June 27, 2018 No comments
The KX-QRP 2nd L 👀K is an accessory for use with the Elecraft KX2 or KX3 Radios. These radios have the ability to decode RTTY, PSK and CW signals (with… Read more
Ten-Tec Eagle HF DSP Transceiver
Ten-Tec Eagle HF DSP Transceiver
December 08, 2014 No comments
TEN-TEC has created a 100 watt transceiver combining simplified controls and ease of operation with the excellent performance of a low first IF… Read more
TEN-TEC 80 Meter QRP Transceiver Kit – Model 1380
TEN-TEC 80 Meter QRP Transceiver Kit – Model 1380
May 12, 2016 No comments
Enjoy the world of QRP CW operation with one of our single band transceiver kits. Available for 80 meters. 3 watts power output. Easy to build and sim… Read more
Palstar SP30H
Palstar SP30H
October 09, 2014 No comments
The Palstar SP30H ultimate communications speaker is a custom engineered speaker designed to match the sonic characteristics of the human voice. The… Read more
Review
Palstar AT2KD Review & How to Use a Differential Antenna Tuner
Palstar AT2KD Review & How to Use a Differential Antenna Tuner
May 14, 2019 No comments
“Jarrad VK3BL reviews Palstar’s AT2KD and talks about the advantages of having a large, high powered tuner even if you only run barefoot…. Read more
IC-9700 Review and Smackdown vs the IC-910H
IC-9700 Review and Smackdown vs the IC-910H
May 13, 2019 No comments
George and Tommy from AmateurLogic review the IC-9100 with Ray Novak, N9JA from Icom. In this classic smackdown episode, the IC-9700 goes up against t… Read more
Yaesu FTM-400DR [ Review ]
Yaesu FTM-400DR [ Review ]
May 13, 2019 No comments
FTM-400XDR C4FM FDMA / FM 144/430 MHz DUAL BAND TRANSCEIVER The new FTM-400XDR includes an improved GPS receiver that employs the latest in GPS techno… Read more
Sherwood Report on the #1 FTDX101D !
Sherwood Report on the #1 FTDX101D !
May 10, 2019 No comments
Sherwood Report “ANNOUNCEMENT – Friday May 10th, 2019: Sherwood Report on the FTDX101D We know that some have been waiting for the Sherwoo… Read more
The post The FCC is Not Reinstating a Vanity Call Sign Fee appeared first on QRZ NOW - Amateur Radio News.
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DXER ham radio news
ARRL -
A working prototype of OSCAR 1, Amateur Radio’s first satellite, will be on display at AMSAT’s Dayton Hamvention® booth. AMSAT’s exhibit will be in Building 1 (Maxim Hall) at the Greene County Fairgrounds and Expo Center in Xenia, Ohio. OSCAR 1 (Orbiting Satellite Carrying Amateur Radio) was launched into orbit in 1961, at the dawn of the Space Age. Built by a group of California-based radio am…
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DXER ham radio news
A working prototype of OSCAR 1, Amateur Radio’s first satellite, will be on display at AMSAT’s Dayton Hamvention® booth. AMSAT’s exhibit will be in Building 1 (Maxim Hall) at the Greene County Fairgrounds and Expo Center in Xenia, Ohio. OSCAR 1 (Orbiting Satellite Carrying Amateur Radio) was launched into orbit in 1961, at the dawn of the Space Age. Built by a group of California-based radio am…
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DXER ham radio news
“AA3B PRESENTATION ON PROPAGATION TOOLS: Bud Trench AA3B was the featured speaker on May 10th at the Fair Lawn Senior Center. His topic: “Using Propagation Tools for Contesting and DXing.” Bud Trench has made over 1.2 million QSOs since first being licensed in 1970. He has a passion for contesting. He was a WRTC competitor for the first time in 2018 and is on the DXCC Honor Roll. He holds the current World Record score for CQ WW CW in the Low Power Category. He is a member of the Frankford Radio Club, First Class CW Operators’ Club, CW Ops, Activity Group CW – DL, CWJF, Pa QSO Party Administration and ARRL. Bud earned a BSEE degree and Masters of Engineering Science degree from the Pennsylvania State University and retired in 2016 after working for Lockheed Martin for over 38 years. He currently resides in Boyertown, PA where he has been building his contest station since 1987.”
Equipment
DX Engineering UCGC-Z Universal Copper Grounding Clamps
DX Engineering UCGC-Z Universal Copper Grounding Clamps
April 26, 2019 No comments
DX Engineering Universal Copper Grounding Clamps DXE-UCGC-Z DX Engineering Universal Copper Grounding Clamps are custom designed to provide a ground r… Read more
FTDX101 Series Catalog
FTDX101 Series Catalog
April 19, 2019 No comments
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Fifine Condenser Microphone K669B Review/Test
Fifine Condenser Microphone K669B Review/Test
April 19, 2019 No comments
Plug and play USB recording microphone with 5.9-Foot USB Cable included for computer PC laptop that connects directly to USB port for record music,com… Read more
ALT-512 QRP TRANSCEIVER
ALT-512 QRP TRANSCEIVER
April 17, 2019 No comments
ALL-MODE QRP TRANSCEIVER for HF + 6m +4m (12 Bands + General Coverage RX) MADE IN EUROPE (Coming Soon*) Aerial-51’s new A… Read more
Antenna
Dual-band V-UHF Quad Antennas
Dual-band V-UHF Quad Antennas
May 08, 2019 No comments
Why choose the 6BS-270 antenna versus a traditional Yagui? · Elements of full wavelength, reaching maximum efficiency in TX / RX. · Optimized design…. Read more
Chameleon Emcomm IIIP Antenna – Antenna, Portable, 160M-10M
Chameleon Emcomm IIIP Antenna – Antenna, Portable, 160M-10M
May 06, 2019 No comments
CHAMELEON ANTENNA EMCOMM-III Portable HF Antenna is specially designed for short to long range portable and man-pack HF communications. The EMCOMM III… Read more
Camouflaged Ham Radio Antenna
Camouflaged Ham Radio Antenna
April 19, 2019 No comments
Model Frequency (MHz) Gain (dBi) Length Feedline VT-14 144-148 2.6 36 in. 3 ft. RG-58 VT-22 222-225 2.6 25 in. 3 ft. RG-58 VT-44 440-450 2.6 16… Read more
VK5SFA Wins the April QST Cover Plaque Award
VK5SFA Wins the April QST Cover Plaque Award
April 09, 2019 No comments
The winning article for the April 2019 QST Cover Plaque award is “A High-Power 160- and 80-Meter Transmitting Loop Antenna” by Steve Adler, VK5SFA. Th… Read more
Review
Palstar AT2KD Review & How to Use a Differential Antenna Tuner
Palstar AT2KD Review & How to Use a Differential Antenna Tuner
May 14, 2019 No comments
“Jarrad VK3BL reviews Palstar’s AT2KD and talks about the advantages of having a large, high powered tuner even if you only run barefoot…. Read more
IC-9700 Review and Smackdown vs the IC-910H
IC-9700 Review and Smackdown vs the IC-910H
May 13, 2019 No comments
George and Tommy from AmateurLogic review the IC-9100 with Ray Novak, N9JA from Icom. In this classic smackdown episode, the IC-9700 goes up against t… Read more
Yaesu FTM-400DR [ Review ]
Yaesu FTM-400DR [ Review ]
May 13, 2019 No comments
FTM-400XDR C4FM FDMA / FM 144/430 MHz DUAL BAND TRANSCEIVER The new FTM-400XDR includes an improved GPS receiver that employs the latest in GPS techno… Read more
Sherwood Report on the #1 FTDX101D !
Sherwood Report on the #1 FTDX101D !
May 10, 2019 No comments
Sherwood Report “ANNOUNCEMENT – Friday May 10th, 2019: Sherwood Report on the FTDX101D We know that some have been waiting for the Sherwoo… Read more
Digital Modes
FT4 vs FT8 – A new mode, what’s the difference?
FT4 vs FT8 – A new mode, what’s the difference?
May 01, 2019 No comments
The FT4 Protocol for Digital Contesting by K1JT Read more
New FT4 Mode with more 20K spots in few your hours realese
New FT4 Mode with more 20K spots in few your hours realese
April 29, 2019 No comments
Source: LINK WSJTX 2.1.0RC5 Release! – The FT4 Protocol for Digital Contesting The FT4 Protocol for Digital Contesting by K1J… Read more
FT4 Video presentation by K1JT
FT4 Video presentation by K1JT
April 24, 2019 No comments
See More about New FT4 Here “At about 20 minutes into the presentation, Joe describes FT4 as being asynchronous, meaning that you can start tran… Read more
Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week
Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week
April 23, 2019 No comments
A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol bega… Read more
The post Contesting & Propagation Tools, Bud Trench, AA3B, Presents – Part 1 appeared first on QRZ NOW - Amateur Radio News.
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DXER ham radio news
ARRL -
Compliments of Icom America, some sessions of the 2019 Contest University in Dayton (CTU) will be livestreamed via the CTU website. Streaming will begin on May 16 at 1200 UTC. Topics include Radiosport Contesting with Integrity; 2BSIQ & SO3R: Riding the Edge of Human Capabilities, and No-Compromise Remote Contesting.
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DXER ham radio news
Compliments of Icom America, some sessions of the 2019 Contest University in Dayton (CTU) will be livestreamed via the CTU website. Streaming will begin on May 16 at 1200 UTC. Topics include Radiosport Contesting with Integrity; 2BSIQ & SO3R: Riding the Edge of Human Capabilities, and No-Compromise Remote Contesting.
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DXER ham radio news
A working prototype of OSCAR 1, Amateur Radio’s first satellite, will be on display at AMSAT’s Dayton Hamvention® booth. AMSAT’s exhibit will be in Building 1 (Maxim Hall) at the Greene County Fairgrounds and Expo Center in Xenia, Ohio. OSCAR 1 (Orbiting Satellite Carrying Amateur Radio) was launched into orbit in 1961, at the dawn of the Space Age. Built by a group of California-based radio amateurs for about $60, OSCAR 1 was the first nongovernmental satellite. It transmitted a simple “HI” in CW for nearly 20 days and was heard in 28 different countries. W1AW Station Manager Joe Carcia, NJ1Q, recently had to troubleshoot a problem with ARRL’s OSCAR 1 in preparation for its Dayton appearance in a special “OSCAR Park” display commemorating AMSAT’s 50th anniversary. He said it was a “rather humbling” experience.
“Apparently, OSCAR 1 was not transmitting properly,” Carcia said. “So, I took it back into the shop, changed the power cable, and checked the transmitter. I had to tweak it just a bit.” Carcia said the satellite now functions.
Only three OSCAR 1 satellites were made. One was launched into orbit, of course, while the Smithsonian Institution houses the other. “Assuming it doesn’t get bounced around too much en route, it will be transmitting a chirpy ‘HI’ on 145.224 MHz,” Carcia said. “The load is a 50 W resistor, so you can copy it about 50 feet or so away from the source.”
AMSAT will present Amateur Radio satellite operation demonstrations outside the main entrance of Maxim Hall, 8 AM – 4:30 PM, on all three days of Hamvention. “AMSAT will be demonstrating actual contacts with the operational amateur satellites,” AMSAT said in its weekly AMSAT News Service newsletter. “We especially want to invite youth to make a contact via an amateur satellite. All are invited to observe, participate and ask questions.”
AMSAT will hold its forum in Room 2 on Saturday, May 18, starting at 12:10 PM EDT. AMSAT Vice President of User Services Robert Bankston KE4AL, will moderate the session.
Source: ARRL
Antenna
Mobile Antenna Little Tarheel HP
Mobile Antenna Little Tarheel HP
December 03, 2014 No comments
” When properly installed on your vehicle this antenna will provide continuous coverage from 7.0 to 54 MHz with the supplied whip. The Li… Read more
X700HNA Dual band Base / Repeater Antenna
X700HNA Dual band Base / Repeater Antenna
April 14, 2015 No comments
Special Features: • Fiberglass radomes • Overlapping outer shells for added strength • Strong waterproof joint couplings • Stainless steel har… Read more
CrankIR Series Antenna Vertical
CrankIR Series Antenna Vertical
January 10, 2015 No comments
Steppir Antenna Verticals are the only true ¼ wave continuous coverage antennas available for the HF bands. The SteppIR technology has had a pr… Read more
Custom Antenna Insulator online .STL creator
Custom Antenna Insulator online .STL creator
December 25, 2014 No comments
Custom Antenna Insulator online .STL creator You can generate own insulator for 3D printing online – precisely tailored of your diameter Read more
Equipment
The Siru Innovatios SDR20 multi-touch portable SDR
The Siru Innovatios SDR20 multi-touch portable SDR
June 05, 2015 No comments
Siru Innovatios SDR20 multi-touch portable SDR Features: 2-channel transceiver operation Two methodologies for implementation: IQ Mod / Demod and Dire… Read more
W-SDRX1 High Performance SDR Receiver
W-SDRX1 High Performance SDR Receiver
January 08, 2015 No comments
The W-SDRX1 is a super wide-band USB SDR Receiver which offers incredible performance across its operating range of 100KHz to 2GHz. It has two antenna… Read more
TR 144 – PRO, Transverter for the 2m band
TR 144 – PRO, Transverter for the 2m band
July 06, 2018 No comments
Over 25 years of experience in development of new transverter technologies led to this masterpiece of VHF technology. Implementing technological innov… Read more
ACOM 1010 160-10m amplifier
ACOM 1010 160-10m amplifier
December 11, 2014 No comments
FEATURES Easy operation. The plate-load True Resistance Indicator (TRI) is an ACOM innovation that provides quick and precise tuning, typically… Read more
VHF
BaoFeng GT-3 Mark II Dual Band UHF/VHF
BaoFeng GT-3 Mark II Dual Band UHF/VHF
January 10, 2015 No comments
23CM High Gain Antenna allows Baofeng GT-3 Mark II to transmit in 8KM. Optimal SQL Setting Frequecy Range: 65-108 Mhz(Only commercial FM radio recepti… Read more
My best Satellite Demo Ever – 18 QSOs
My best Satellite Demo Ever – 18 QSOs
April 21, 2019 No comments
Read more
Compare All BaoFeng Radios
Compare All BaoFeng Radios
April 13, 2015 No comments
Compare All BaoFeng Radios Web Based Comparison Chart See More: Read more
BaoFeng BF-F9 +TP Two-Way Radio, Dual Band UHF/VHF Ham 136-174/400-520MHz Tri-Power 1/4/8W
BaoFeng BF-F9 +TP Two-Way Radio, Dual Band UHF/VHF Ham 136-174/400-520MHz Tri-Power ¼/8W
February 06, 2015 No comments
Description： The Baofeng BF-F9+TP is the upgraded version of BF-F9+ with the trip power 1w/4w/8W/. With its 128 channel capacity and up to 12 hours of… Read more
App - Mobile
HF Beam Antenna Calculator for Iphone and Ipad
HF Beam Antenna Calculator for Iphone and Ipad
January 06, 2015 No comments
Antenna Calculator The Maidenhead & HF Beam Antenna is a useful utility to calculate the the Maidenhead LOCATION as well as HF Elements’ s… Read more
My LoTW – Free app for iOS and Android
My LoTW – Free app for iOS and Android
June 08, 2016 No comments
My LoTW is a viewer app for ARRL’s Logbook of the World. With My LoTW, you can: – View all the QSOs you have submitted to LoTW. –… Read more
Hamradio Line Loss Calculator for iOS devices
Hamradio Line Loss Calculator for iOS devices
June 06, 2017 No comments
Coax Line from Federico Romano, IW2MVI is a simple and fast app that allow you to calculate the loss of your coax line and calculate power output from… Read more
Nifty app uses Morse code to send Apple Watch messages
Nifty app uses Morse code to send Apple Watch messages
January 27, 2016 No comments
Although there are ways of messaging people with the Apple Watch — either with Siri dictation, or using pre-written responses and emojis — as far as I… Read more
The post First Ham Satellite — OSCAR 1 — will Join AMSAT’s 50th Anniversary Celebration at Dayton appeared first on QRZ NOW - Amateur Radio News.
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DXER ham radio news
Edition #300 !! The latest FREE DX-World Weekly Bulletin compiled by Bjorn, ON9CFG.
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DXER ham radio news
5W0H Team will be active from Upolu Island, Samoa, IOTA OC - 097, 1 - 10 June 2019.
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DXER ham radio news
Elecraft K4 OVERVIEW
A direct-sampling SDR you’ll love to use
Our new K4 harnesses the latest in signal processing while retaining the best aspects of the K3S and P3. The resulting user interface makes the technology transparent, allowing you to focus on working the world.
160-6 meter, all-mode coverage & dual RX
The K4 includes dual receive over 100 kHz to 54 MHz. Since it utilizes direct sampling, there’s no need for crystal filters in the K4 or K4D (see Models, back page). For extreme-signal environments, we offer a dual superhet module (standard in the K4HD). An internal VHF/UHF module is also planned.
High-resolution mini-pan for each receiver
Our advanced fine-tuning aid, with its resampled bandwidth as narrow as +/- 1 kHz, is displayed separately from the main panadapter. You can turn it on by tapping either receiver’s S-meter or by tapping on a signal of interest.
Simple operation and setup
The K4 features a large, full-color touch display, combined with a rich set of real controls. Per-VFO transmit metering makes split mode completely foolproof. Band-stacking switches and per-receiver controls are both intuitive and versatile, adapting to operating context. Usage information on these and other features is just one tap away, thanks to our built-in help system.
Rich I/O complement
The rear panel includes all the RF, analog and digital I/O you’ll need to complete your station. All K-line accessories are supported, including amps, ATUs, and our K-Pod station controller. The HDMI video output supports an external display with its own user-specified format.
Full remote control from multiple devices
The K4 can be 100% remote controlled, via Ethernet, from a second K4 as well as a PC, notebook, or tablet. Panadapter data is included on all remote displays.
Modular hybrid architecture
The K4 adapts to your needs, with three models to choose from:
Basic K4 with wide-range dual receive K4D with diversity receive K4HD with a dual superhet module for exceptional dynamic range
You can upgrade or add options as desired, or as new technology becomes available. This extensibility applies to software as well. The K4’s powerful, fast-starting CPU provides unlimited expansion opportunities.
Fast signal processing
The RF signal chain in the K4 incorporates parallel hardware processing of data streams, including a dedicated DSP subsystem. This, combined with silent, PIN-diode T/R switching, ensures fast CW break-in. Data and speech-processing delays are also minimized.
Standard DSP features include easy-to-adjust, per-mode RX/TX EQ; clean, punchy RF speech processing; full DVR capabilities; and several built-in data decode/encode modes. Direct-sampling technology results in an ultra-flat passband response for clean RX and TX audio. Since the signal chain is software-defined, the DSP can be field upgraded to add new algorithms and operating modes.
KAT4 ATU
The KAT4 ATU has a nominally 10:1 matching range. It includes 3 antenna jacks, any one of which can be selected as an input for one or both receivers.
Internal VHF/UHF module (future option)
An expansion slot is reserved for a high-performance VHF/UHF module, with output of approximately 15 W. This module will support all modes.
Kit version
A no-soldering kit version of the K4 is planned for later release. Builders will learn about advanced radio technology as they proceed. All modules are pre-aligned and tested.
MODELS
The K4 adapts to your needs, with three models to choose from.
Model K4 Model K4D Model K4HD
Basic K4 transceiver provides 160-6 m, all-mode coverage; 100 W output; five receive RF sources; and wideband dual watch, allowing the main and sub receivers to be set for the same or different bands. Adds KDIV4 option, with a second set of band-pass filters and additional direct-sampling ADC module. This allows the two receivers to use different antennas – a requirement for diversity receive. Having two sets of band-pass filters also optimizes signal handling when the receivers are on different bands and/or antennas. Includes all of the above, plus our dual superhet module, the KHDR4. Ideal for competitive field day, contesting, and DXpedition stations. Each superhet receive section includes two crystal filters: one SSB/data bandwidth, one CW bandwidth. The superhet’s 8 MHz IF has excellent dynamic range, so additional crystal filters are not required.
STANDARD FEATURES
Size: 4.5”H x 13.5”W, 10” D
Weight: Approx. 10 lbs
Supply Voltage: 12-15 VDC
Current: ~2 A RX, ~18-23 A TX
Frequency Range: 100 kHz – 54 MHz (VHF/UHF range to be determined*)
Stablility: +/- 0.25 ppm (TCXO)
Modes: CW, SSB, AM, FM, Data
LCD: 7” color; touch & mouse control
Text modes: CW, PSK31/63, RTTY
KAT4 ATU: 10:1+ range; 3 ant. jacks
RX antenna sources: Up to 5
A-to-D Converter(s): 16 bits
I/O: USB-A x3, USB-B (two virtual com ports + audio), RS232 (DE9), Ethernet, HDMI. front/rear mic, front/rear phones, LINE in/out, speakers, PTT in, KEY out, paddle, key, ACC,12 V out.
CW QSK: Silent, PIN-diode switched
Other: RX/TX EQ, real-time clock,100% remote control including panadapter data, remote antenna switch control*, custom in-box software apps*
News
First Ham Satellite — OSCAR 1 — will Join AMSAT’s 50th Anniversary Celebration at Dayton
First Ham Satellite — OSCAR 1 — will Join AMSAT’s 50th Anniversary Celebration at Dayton
May 16, 2019 No comments
A working prototype of OSCAR 1, Amateur Radio’s first satellite, will be on display at AMSAT’s Dayton Hamvention® booth. AMSAT’s exhibit will be in Bu… Read more
The FCC is Not Reinstating a Vanity Call Sign Fee
The FCC is Not Reinstating a Vanity Call Sign Fee
May 16, 2019 No comments
An erroneous report this week suggested that the FCC planned to again impose an Amateur Radio vanity call sign application (regulatory) fee of $70 for… Read more
Arizona Homeowners Association and Hams Agree on Outdoor Antenna Guidelines
Arizona Homeowners Association and Hams Agree on Outdoor Antenna Guidelines
May 15, 2019 No comments
The Board of Directors of an antenna-restricted community in Arizona voted overwhelmingly in April to allow radio amateurs to erect certain outdoor an… Read more
Kidsday 15 June 2019
Kidsday 15 June 2019
May 14, 2019 No comments
This year’s second Kidsday will be held on Saturday 15th of June. This event is especially created to promote Amateur Radio to youth. This is a moment… Read more
Digital Modes
FT4 vs FT8 – A new mode, what’s the difference?
FT4 vs FT8 – A new mode, what’s the difference?
May 01, 2019 No comments
The FT4 Protocol for Digital Contesting by K1JT Read more
New FT4 Mode with more 20K spots in few your hours realese
New FT4 Mode with more 20K spots in few your hours realese
April 29, 2019 No comments
Source: LINK WSJTX 2.1.0RC5 Release! – The FT4 Protocol for Digital Contesting The FT4 Protocol for Digital Contesting by K1J… Read more
FT4 Video presentation by K1JT
FT4 Video presentation by K1JT
April 24, 2019 No comments
See More about New FT4 Here “At about 20 minutes into the presentation, Joe describes FT4 as being asynchronous, meaning that you can start tran… Read more
Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week
Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week
April 23, 2019 No comments
A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol bega… Read more
Review
Palstar AT2KD Review & How to Use a Differential Antenna Tuner
Palstar AT2KD Review & How to Use a Differential Antenna Tuner
May 14, 2019 No comments
“Jarrad VK3BL reviews Palstar’s AT2KD and talks about the advantages of having a large, high powered tuner even if you only run barefoot…. Read more
IC-9700 Review and Smackdown vs the IC-910H
IC-9700 Review and Smackdown vs the IC-910H
May 13, 2019 No comments
George and Tommy from AmateurLogic review the IC-9100 with Ray Novak, N9JA from Icom. In this classic smackdown episode, the IC-9700 goes up against t… Read more
Yaesu FTM-400DR [ Review ]
Yaesu FTM-400DR [ Review ]
May 13, 2019 No comments
FTM-400XDR C4FM FDMA / FM 144/430 MHz DUAL BAND TRANSCEIVER The new FTM-400XDR includes an improved GPS receiver that employs the latest in GPS techno… Read more
Sherwood Report on the #1 FTDX101D !
Sherwood Report on the #1 FTDX101D !
May 10, 2019 No comments
Sherwood Report “ANNOUNCEMENT – Friday May 10th, 2019: Sherwood Report on the FTDX101D We know that some have been waiting for the Sherwoo… Read more
The post Elecraft K4 – High Performance Direct Sampling SDR appeared first on QRZ NOW - Amateur Radio News.
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CX2AM, CX3AN, CX3DDB, CX4CR & CX8FB will be active from Upolu Island, Samoa as 5W0H during June 1-10, 2019. QRV on 80-6m. QSL via EB7DX.
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Click to enlarge (Source: K4 Product Brochure)
Today we learned about the latest addition to the Elecraft product line, the Elecraft K4.
This fills a niche in the Elecraft product line and is certain to directly compete with the likes of the Icom IC-7610 and a number of Flex Radio transceivers, among others.
Elecraft describes the K4 as having a “modular hybrid architecture”. Below, I’ve pulled the text and images from the Elecraft product brochure.
Wayne Burdick (N6KR) of Elecraft notes that tomorrow (Friday, May 17, 2019) the Elecraft site will (re)launch a K4 product page with pre-order/reservation page.
I plan to learn more about the K4 and report back during Hamvention this week. Stay tuned by bookmarking the tag Elecraft K4:
Elecraft K4 Product Information
(Source: Elecraft K4 Product Information Sheet via Lutz Electronics, Switzerland)
Click to enlarge (Source: K4 Product Brochure)
A direct-sampling SDR you’ll love to use
Our new K4 harnesses the latest in signal processing while retaining the best
aspects of the K3S and P3. The resulting user interface makes the technology
transparent, allowing you to focus on working the world.
160-6 meter, all-mode coverage & dual RX
The K4 includes dual receive over 100 kHz to 54 MHz. Since it utilizes direct
sampling, there’s no need for crystal filters in the K4 or K4D (see Models, back
page). For extreme-signal environments, we offer a dual superhet module
(standard in the K4HD). An internal VHF/UHF module is also planned.
High-resolution mini-pan for each receiver
Our advanced fine-tuning aid, with its resampled bandwidth as narrow as +/- 1
kHz, is displayed separately from the main panadapter. You can turn it on by
tapping either receiver’s S-meter or by tapping on a signal of interest.
Simple operation and setup
The K4 features a large, full-color touch display, combined with a rich set of real
controls. Per-VFO transmit metering makes split mode completely foolproof.
Band-stacking switches and per-receiver controls are both intuitive and versatile,
adapting to operating context. Usage information on these and other features
is just one tap away, thanks to our built-in help system.
Click to enlarge (Source: K4 Product Brochure)
Rich I/O complement
The rear panel includes all the RF, analog and digital I/O you’ll need to complete
your station. All K-line accessories are supported, including amps, ATUs, and our
K-Pod station controller. The HDMI video output supports an external display
with its own user-specified format.
Full remote control from multiple devices
The K4 can be 100% remote controlled, via Ethernet, from a second K4 as well as
a PC, notebook, or tablet. Panadapter data is included on all remote displays.
Modular hybrid architecture
The K4 adapts to your needs, with three models to choose from:
Basic K4 with wide-range dual receive K4D with diversity receive K4HD with a dual superhet module for exceptional dynamic range
You can upgrade or add options as desired, or as new technology becomes
available. This extensibility applies to software as well. The K4’s powerful, fast-starting CPU provides unlimited expansion opportunities.
Fast signal processing
The RF signal chain in the K4 incorporates parallel hardware processing of data
streams, including a dedicated DSP subsystem. This, combined with silent,
PIN-diode T/R switching, ensures fast CW break-in. Data and speech-processing
delays are also minimized.
Standard DSP features include easy-to-adjust, per-mode RX/TX EQ; clean,
punchy RF speech processing; full DVR capabilities; and several built-in data
decode/encode modes. Direct-sampling technology results in an ultra-flat
passband response for clean RX and TX audio. Since the signal chain is softwaredefined, the DSP can be field upgraded to add new algorithms and operating
modes.
KAT4 ATU
The KAT4 ATU has a nominally 10:1 matching range. It includes 3 antenna jacks,
any one of which can be selected as an input for one or both receivers.
Internal VHF/UHF module (future option)
An expansion slot is reserved for a high-performance VHF/UHF module, with
output of approximately 15 W. This module will support all modes.
Kit version
A no-soldering kit version of the K4 is planned for later release. Builders will learn
about advanced radio technology as they proceed. All modules are pre-aligned
and tested.
K4 Key Specs and Features Size: 4.5”Hx13.5”W,10”D Weight: Approx.10lbs SupplyVoltage: 12-15VDC Current: ~2ARX,~18-23ATX FrequencyRange: 100kHz-54MHz(VHF/UHFrangetobe determined*) Stablility: +/-0.25ppm(TCXO) Modes: CW, SSB, AM, FM, Data LCD: 7”color;touch&mousecontrol Text modes: CW, PSK31/63, RTTY KAT4ATU: 10:1+range;3ant.jacks RXantennasources: Upto5 A-to-D Converter(s): 16 bits I/O: USB-Ax3,USB-B(twovirtualcomports+audio),RS232(DE9), Ethernet, HDMI. front/rear mic, front/rear phones, LINE in/out, speakers,PTTin,KEYout,paddle,key, ACC,12Vout. CWQSK: Silent,PIN-diodeswitched Other: RX/TX EQ, real-time clock,100% remote control including panadapter data, remote antenna switch control*, custom in-box software apps* Models (K4 & K4D upgradeable by the user at any time) K4: Basic K4 transceiver provides 160-6 m, all-mode coverage; 100 W output; five receive RF sources; and wideband dual watch, allowing the main and sub receivers to be set for the same or different bands. K4D: Adds KDIV4 option, with a second set of band-pass filters and additional direct- sampling ADC module. This allows the two receivers to use different antennas – a requirement for diversity receive. Having two sets of band-pass filters also optimizes signal handling when the receivers are on different bands and/or antennas. K4HD: Includes all of the above, plus our dual superhet module, the KHDR4. Ideal for competitive field day, contesting, and DXpedition stations. Each superhet receive section includes two crystal filters: one SSB/data bandwidth, one CW bandwidth. The superhet’s 8 MHz IF has excellent dynamic range, so additional crystal filters are not required.
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No doubt, more details will be coming from Hamvention tomorrow. (A hat tip to Jeff Davis KE9V, my on site Hamvention source).
72 de Larry W2LJ
QRP - When you care to send the very least!
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Google Groups
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courtesy: Roger, G3XBM
For the past few years several amateurs in Europe and along the east coast of North America have been experimenting on the ‘ dreamers band’, 8.7 - 9.1 kHz.
Some rather surprising distances have been covered on these frequencies in spite of the dreadfully poor efficiencies realized with backyard antenna systems.
Previous ‘earth-mode’ backyard experiments on VLF by Roger, G3XBM, are well documented on his website along with details on his simple homebrew gear used to send signals across town using the earth. Following Roger’s steady progression via his previous blog spots makes for fascinating reading … there is some really great stuff here making it difficult to not jump in and take the plunge yourself.
This experimental field presents the ideal opportunity for a couple (or several) local amateurs to work together at exchanging signals on these low frequencies with simple home built equipment.
A major contributor to the present state of the ‘VLF / ULF amateur art’ is Stefan, DK7FC and a posting this week to the old RSGB’s (blacksheep) LF reflector makes some of his earlier work pale by comparison as he announced the reception of his 270Hz signal (the 1110km band!) at a distance of 177 km!
Just a note from a recent experiment at 270.1 Hz.
On Sunday morning, 2019-05-12_10:34,+150m, I’ve done a carrier transmission on my ground loop antenna again. I did not expect more than, hopefully, a detectable spectrum peak in 57.6 km distance, i.e. at my tree site. The tree receiver site was listening and recording data using vlf-rx tools.
One E field antenna and two orthogonal loops were listening. The loops have been improved recently! They consist out of a single circular turn of 1.2 m diameter using 10mm diameter copper tube (about 25 mm^2). It is a closed loop, non-resonated, with an impedance matching transformer. This transformer previously had 1:100 turns. Now it (they) has 2:240 turns, i.e. two turns primary (out of 14mm^2, AWG6). This improved the sensitivity below 2 kHz significantly ( abt. 4…5 dB).
Furthermore the TX antenna length and angle has been improved, resulting in about +3 dB more signal strength on the RX site!
In a previous experiment at 270.1 Hz, some month ago, there was no result at all, not the weakest trace, despite excessive tweaking of all parameters. So the question was, will the improvements result in a detectable signal now?
Several things went wrong in that experiment. I forgot a bag containing important equipment such as the power supply for the netbook that generates the carrier signal. Also the output power was not as high as planned, just about 380 W, giving 2.2 A antenna current (I measured 64.7 V at 1 A DC). Anyway i managed to improvise so the experiment was started, but with some hours of delay which meant i higher QRN background level. Then, on the WLAN link to the tree, there were several interruptions of the stream (i’ll move to 5 GHz very soon!). I even got some QRM from my battery charger for some short time periods (forgot to disable the charger remotely). So there were several factors that could have been improved or avoided. And the middle of May is not the ideal time anyway.
Well, 270.1 Hz, that’s the 1110 km band! The far field begins at 177 km distance, i.e. i am clearly in the near field here. Thus, from a 'magnetic’ TX antenna, we would expect that the signal is mainly detectable on the H field, i.e. the loop antennas.
The first interesting results is that this expectation is actually confirmed. There is nothing detectable on the E field but the carrier S/N in the H fields is close to 10 dB in the first run. Mixing the H fields and tweaking the filters rises the carrier S/N to 10.7 dB, see attachment.
So far not really an undoubtedly detection but it is a candidate for optimism! With a few less problems during the experiment there is a chance for 14 dB SNR. Also, there is quite much sideband QRM around 300 Hz which makes 270 Hz a bit harder to work on.
73, Stefan
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DX_300.pdf
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The DX-Radio Amateur Club of Karditsa on 19-05-2019 from 05:00 to 16:00 UTC at Lake Nikolaos Plastiras, Karditsa (botanical garden), Grid Square KM09UG, is going to raise a meteorological type balloon with ham antenna at a height of 80m. Look for SZ4KRD/P on HF (SSB). Focus on 80 & 160m.
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ON8AZ, ON4KZ, ON5HC, ON5DZ & ON7PQ will be active from Les Minquiers, EU-099 as MJ/OQ7A/P during May 25-31, 2019. QRV on 80-10m. Full info here.
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Henry, NL0H, will travel on business to St. Lawrence Island, NA-040 (Alaska) during May 16 to 20. He will bring a rig and wire antennas. Unfortunately, there is a CME expected to produce some serious geomagnetic disturbances between May 16-18. He will attempt to be on 20m & 30m SSB and FT8 as much as […]
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Edition #300 !! The latest FREE DX-World Weekly Bulletin compiled by Bjorn, ON9CFG.
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CX2AM, CX3AN, CX3DDB, CX4CR & CX8FB will be active from Upolu Island, Samoa as 5W0H during June 1-10, 2019. QRV on 80-6m. QSL via EB7DX.
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