My good friend David Cripe (NMOS) has recently informed me about a new product he’s offering to the radio community via his eBay store: Kev-Flex Stealth Kevlar Antenna Wire. Kev-Flex looks like a superb option for field antennas of all stripes especially since it has an incredibly high tensile strength. It’s available in 75′ bundles, but Dave can also cut custom lengths. NM0S is also a trusted retailer in the ham radio world, so you can purchase with confidence.
Kev-Flex is a unique antenna wire manufactured exclusively for NM0S Electronics. The lightweight center core of the wire is made from Kevlar fiber, giving the wire its incredible strength. The Kevlar core is wrapped with six tinned strands of 30 AWG copper. The effective surface of the wire creates an effective skin area capable of handling well over 100W.
The cable is protected from the elements by a coating of UV-resistant black polyethylene. With a total diameter of only 1/16″ (incl. insulation) and a weight of just 16 feet per ounce, the tensile strength 125 lbs allows lengthy unsupported horizontal runs. Kev-Flex is ideal for extremely long LW-antennas and Beverages and is great for balloon or kite-supported antennas. Its low weight and high break-load makes it most suitable for SOTA activations and other field operations.
The outer insulation makes the wire kink-resistant, and its slippery finish makes it ideal for stealth antennas that must be passed through trees or other obstacles without snagging.
This antenna wire is sold in 75 foot long bundles, which is enough for a 40M dipole or EFHW. Two 75 foot bundles would make a great 80M dipole. Custom lengths are available on request.
Specification
– Kevlar fiber core wrapped with six 30 AWG copper strands – Weather-proof black polyethylene (PE) insulation, 1/16″ O.D. – Weight: 16 feet per ounce – Breaking-load: 125 lbs – Velocity factor 0.97
Adam Rong BD6CR has designed a simple DSB Transceiver for FT8. Crystals are available for 7.074 MHz. and 14.070 MHz (which can be “pulled” with a trimmer to 14.074 MHz).
Using only 4 Transistors, 2 IC’s, 3 Toroids, 5 Diodes/LED’s and a handful of resistors and capacitors this one watt wonder will get you on the air in no time.
Click to enlarge.
One could build this on Perfboard (see above), or use Ugly/Manhattan style construction. There are no plans for a circuit board.
Adam posted this on groups.io crkit:
“I built this 7074 DSB 1-watt radio and made 6 FT8 QSO with JA stations in 15 mins last weekend. It is fun to operate by switching PTT manually to keep it simple and lower current consumption.”
The FCC has invited public comments on ARRL’s 2018 Petition for Rule Making, now designated as RM-11828, which asks the FCC to expand HF privileges for Technician licensees to include limited phone privileges on 75, 40, and 15 meters, plus RTTY and digital mode privileges on 80, 40, 15, and 10 meters.
Interested parties have 30 days to comment. The Technician enhancement proposals stemmed from the recommendations of the ARRL Board of Directors’ Entry-Level License Committee, which explored various initiatives and gauged member opinions in 2016 and 2017.
“This action will enhance the available license operating privileges in what has become the principal entry-level license class in the Amateur Service,” ARRL said in its Petition. “It will attract more newcomers to Amateur Radio, it will result in increased retention of licensees who hold Technician Class licenses, and it will provide an improved incentive for entry-level licensees to increase technical self-training and pursue higher license class achievement and development of communications skills.”
Specifically, ARRL proposes to provide Technician licensees – both present and future – with: * Phone privileges at 3.900 to 4.000 MHz, 7.225 to 7.300 MHz, and 21.350 to 21.450 MHz. * RTTY and digital privileges in current Technician allocations on 80, 40, 15, and 10 meters.
The ARRL petition points out the explosion in popularity of various digital modes over the past 2 decades. Under the ARRL plan, the maximum HF power level for Technician operators would remain at 200 W PEP. The few remaining Novice licensees would gain no new privileges under ARRL’s proposal.
ARRL’s petition points to the need for compelling incentives not only to become a radio amateur in the first place, but then to upgrade and further develop skills. Demographic and technological changes call for a “periodic rebalancing” between those two objectives, ARRL maintained in his proposal. The FCC has not assessed entry-level operating privileges since 2005.
The Entry-Level License Committee offered very specific data- and survey-supported findings about growth in Amateur Radio and its place in the advanced technological demographic, which includes individuals younger than 30. It received significant input from ARRL members via more than 8,000 survey responses. “The Committee’s analysis noted that today, Amateur Radio exists among many more modes of communication than it did half a century ago, or even 20 years ago,” ARRL said in its petition.
Now numbering some 384,500, Technician licensees comprise more than half of the US Amateur Radio population. ARRL stressed in its petition the urgency of making the license more attractive to newcomers, in part to improve upon Science, Technology, Engineering, and Mathematics (STEM) education, “that inescapably accompanies a healthy, growing Amateur Radio Service.”
ARRL said its proposal is critical to develop improved operating skills, increasing emergency preparedness participation, improving technical self-training, and boosting overall growth in the Amateur Service, which has remained nearly inert at about 1% per year.
The Entry-Level License Committee determined that the current Technician class question pool already covers far more material than necessary for an entry-level exam to validate expanded privileges.
ARRL told the FCC that it would continue to refine examination preparation and training materials aimed at STEM topics, increase outreach and recruitment, work with Amateur Radio clubs, and encourage educational institutions to utilize Amateur Radio in STEM and other experiential learning programs.
How to file your comment
(Source: ARRL)
Those interested posting brief comments on the ARRL Technician Enhancement proposal (RM-11828) using the Electronic Comment Filing System (ECFS) should access FCC Electronic Comment Filing System Express. In the “Proceeding(s)” field, enter the number of the PRM, i.e., RM-11828 (using this format), complete all required fields, and enter comments in the box provided. You may review your post before filing. All information you provide, including name and address, will be publicly available once you post your comment(s). For more information, visit “How to Comment on FCC Proceedings.”
The WSJT-X 2.0 software suite has been released, and developer Joe Taylor, K1JT, is urging FT8 and MSK144 users to upgrade to what will become the new standard
The ARRL says:
The FT8 and MSK144 protocols have been enhanced in a way that is not backward compatible with older versions of the program. That includes any version 1.9 releases.
“The new protocols become the worldwide standards starting on December 10, 2018, and all users should upgrade to WSJT-X 2.0 by January 1, 2019,” Taylor said on the WSJT-X home page. “After that date, only the new FT8 and MSK144 should be used on the air.”
The first article deals with buying used and new equipment, while the other article is a review of the uBITX QRP transceiver. Thanks go to Ken Reitz for graciously allowing these to be posted after their initial publication!
And thank you, Robert!
Readers, I highly recommend both of these articles. In his used equipment guide, Robert makes practical suggestions for navigating the world of pre-owned radio gear and shares some important tips. His uBITX QRP Transceiver article is essential reading for anyone who has considered building this incredibly affordable kit.
Many thanks to buddy, David Day (N1DAY), who shares the following announcement from his website:
Announcing the 2019 Lightbulb QSO contest, March 9th 20:00 UTC through March 10th 20:00 UTC.
We’ve all heard the stories…..Joe Elmer was so good at antenna matching that he made a 100 mile 20M QSO on an ordinary 100 watt household lightbulb. So here is your chance to try it out. Go traditional and compete with just a lightbulb dummy load. Or, get creative and invent an antenna design that uses the lightbulb as a key component that makes your antenna work. Five categories of competition give you different paths to gaining bragging rights as TOP BULB in the 2019 Lightbulb QSO contest. Categories of competition are:
1. Household – an antenna constructed of any lightbulb available for purchase in normal home use applications.
2. Commercial/Industrial – an antenna constructed of any lightbulb available for purchase in commercial and/or industrial applications.
3. Homebrew – an antenna constructed of any home made light bulb that radiates visible light when power is applied.
4. Dummy Load – any lightbulb that normally serves as a dummy load (see miscellaneous rules). Please note that the administrators do not recommend this category of operation because it puts both the operator and RF sensitive equipment in close proximity to the load. However, several, lightbulb purists wanted the category so here it is for entry at your own risk.
5. Freestyle – ?anything goes. Get creative and string all of your Christmas lights together, what ever you want and as many lightbulbs as you want. Bring down the power grid if you must.. we just don’t care, but certainly want to reward extreme creativity.
The Objective of the Lightbulb QSO contest is to build and use an antenna constructed in a manner so that the lightbulb is a key component of the antenna and to promote understanding and practical application of antenna matching concepts that allow a lightbulb to be used as a radiator in two way radio communications.
Dates:
Saturday, March 9th, 2019 20:00 UTC through Sunday, March 10th, 2019 20:00 UTC.
Bands of Operation:
160M, 80M, 40M, 20M, 15M, 10M, 6M
As you might notice, this isn’t the typical QSO Party.
I love the idea–it reminds me of a QSO party I did once which challenged you to use unconventional antennas (I logged a number of contacts using a pair of trampolines!).
I also appreciate the opportunity to build something new and participate in a contest that (obviously) doesn’t take itself too seriously. What fun!
David has spent several months building a variety of lightbulb antennas. Here are a few of his creations:
If a Lightbulb QSO Party sounds like fun to you, start planning your antenna now!
David passed along the following links for guidance:
https://hamsignal.com where all the research, observations, schematics, downloads etc. are located.
Dave Benson K1SWL, founder of the renown Small Wonder Labs, listened to you and has designed a 40 meter version of his winning Hilltopper design. Four State QRP Group is honored to have been selected to kit the new transceiver. The Hilltopper is a high performance CW transceiver for the 40M meter band. It is the perfect solution to your portable operation needs – small, lightweight, wide 40 meter frequency coverage and low current drain, extending the life of your portable power source. The receiver is adapted from K1SWL’s SW+ Series with minor modifications. The front-end circuitry was revised to replace the now-vanished 10.7 MHz IF transformers. The receiver output is suitable for headphone use.
The transmitter strip is a proven design using three BS170 transistors for the PA. The frequency source for both transmitting and receiving is a DDS VFO employing a Si5351 PLL module. Control for the rig is provided by an Atmel ATmega328P. This runs both the frequency control and the full-featured CW keyer.
A custom silk-screened PCB enclosure is included with the kit. No drilling or cutting required!
There are two pre-installed SMT ICs on the board, but the remainder are ALL THROUGH HOLE parts, and all jacks and connectors are board mounted, the combination making this kit very easy to assemble with no external wiring needed.
Many thanks to Pete (WB9FLW) who shares the following information regarding HobbyPCB’s much-anticipated portable transceiver which is now shipping. The price is a competitive $529.00.
The following information comes from the HobbyPCB website:
The IQ32 is 5W output, 80-10M Amateur Radio transceiver with powerful 32 bit processing providing high-end features at an entry level price. The IQ32’s 3.2″ color LCD touch-screen display and dual control knobs provide an enjoyable operating experience in a robust package.
Available for immediate delivery!
Introducing the HobbyPCB IQ32 HF transceiver, based on the high performance RS-HFIQ RF system, the receiver in the IQ32 consists of 5 band-pass filters to reject out-of-band signals, an LNA with frequency dependent gain and a conventional quadrature down-converter. The transmitter features a Class A, 5W power amplifier with individual low-pass filters for each band to exceed FCC requirements for spectral purity.
The IQ32 features a large, color, touch-screen display providing an enhanced user interface and informative spectrum and waterfall displays found on radios costing much more. With a powerful STM-32 DSP processor, the IQ32 transceiver has variable filtering, multi-mode AGC, memory functions, built-in PSK encode/decode with keyboard support.
5W not enough power? Add a HARDROCK-50 to your station to boost up to 50W. The IQ32 and HARDROCK-50 seamlessly integrate together for a powerful mobile/base station!
Simple upgradeable firmware, no connection to a computer required, no drivers, no cables. Simply insert a thumb-drive with the appropriate file and the IQ32 updates its own firmware.
Specifications
Frequency Range: 3-30MHz (performance guaranteed on 80/60/40/30/20/17/15/12/10M ham bands)
Sensitivity: MDS < -128 dBm on 80M dropping to < -135 on 10M
I may see about grabbing an IQ-32 to evaluate. I’m very curious how its receiver might stack up to the Elecraft KX2, the CommRadio CTX-10 and the LnR Precision LD-11. (Please note that these links lead to my other radio site, the SWLing Post.)
It doesn’t appear that the IQ-32 has an AM mode, but I would still like to see how it might handle broadcast listening on the shortwave meter bands using ECSS.
Video
Check out WA2EUJ’s IQ-32 presentation at the 2018 Hamvention on YouTube:
Those of you who are fans of single lever paddles will be pleased to learn that LnR Precision has announced the latest key in their product line: the SKCC Sideswiper.
Here’s the description from the product page:
The SKCC Sideswiper is patterned after the Kungsimport key produced in Kunsbacka, Sweden in the 1980’s by Hakan Scard (professional operator at Gothenburg Radio, SAG) and Ben Jomkert. It is a classic very traditional Sideswiper produced for the Straight Key Century Club.
The light weight Oak fingerpiece allows for a close gap setting making it a very fast key with little chance of chattering. The heavy 2.8 pound base makes it a very stable device on your desk. No chasing this key around the desk or needing two hands to operate.
Key Features:
The SKCC Sideswiper base has a 4″x 3.25″ powdercoated cold rolled steel base with SKCC logo
The blade is highcarbon spring steel and features a Lightweight Oak Fingerpiece
Upper hardware is anodized aluminum with matte finish.
Weight is 2.8 lbs
I think this is a beautiful key–I love the simple design, heavy base and the fact they’re made by a quality key manufacturer.
The price will be $94.95 US.
Thanks for the tip, WD8RIF!
From the fertile mind of QRP Hall Of Fame Pete N6QW comes a new Radio Project, the Sudden QRP SSB Transceiver. If you have never Scratch Built such a Rig and would like to N6QW’s latest offering deserves close inspection.
Using only readily available (and cheap) components (and few of them) one can build a Full Blown SSB Transceiver for either 40 or 20 meters. The Radio’s Design will be featured in 2 installments of GQRP’s Sprat Magazine. The 1st being in the Fall issue (Receiver/LO) and the second part with come in the Spring 2019 issue (Transmitter).
One use for the Rig is on the Digital Modes, to that end he has design a simple Digital Adapter (which is also described on n6qw.com). One possibility is for a dedicated FT8 Transceiver!
Even if you do not intend to build the Rig take a moment to check out his Web Page. There you will find a wealth of information on designing and building such Transceivers.
Pete WB9FLW
(not to be confused with Pete N6QW 🙂
Thanks for the tip, Pete! How exciting! This looks like an innovative little rig and I love the concept of only using accessible components–in the end, that will give this little rig some longevity.
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