Archive for the ‘Uncategorized’ Category
TX factor Episode 20 is Now On Air
Welcome to our 20th episode! In this revamped show we conclude our look at innovative amateur radio products from UK National Hamfest 2017, and Bob goes back to basics with an overview of setting up an inexpensive SDR dongle. We have two great prizes to give away in our free-to-enter draw. An RSP1A SDR receiver from SDRplay and a copy of the best-selling book ‘SDR’ from the RSGB. Plus we look back at the past four years of topics covered by the TX Factor team. We hope you enjoy it!
The Spectrum Monitor — January, 2018
Stories you’ll find in our January, 2018 issue:
TSM Reviews: Whistler TRX-1 Scanner
By Larry Van Horn N5FPW
With a lineage that extends back to three generations of Whistler/GRE scanners, this new generation of handhelds continues to build on a proven technology. Despite the steep learning curve getting the hang of operating the TRX-1, Larry notes, “Overall, I have been very impressed with the Whistler TRX-1. It will now be my new travel scanner…If you want to monitor many of the major digital scanner systems used in the U.S, and Canada, then you should seriously consider purchasing the Whistler TRX-1.”
TSM Reviews: Whistler TRX-2 Mobile/Base Scanner
By Bob Grove W8JHD
Operational capabilities of the TRX-2 mobile/base version of the TRX-1 handheld scanner are essentially the same. Bob takes a quick look at the main differences, including peculiarities in programming the TRX-2, which could help you decide which scanner is right for you.
TSM Reviews: Airspy HF+ Software Defined Radio
By Bob Grove W8JHD
Primarily directed toward shortwave and two-meter amateur radio applications, the HF+ offers wide dynamic range, superior sensitivity, low digital noise, suppressed background noise, and good image rejection. Bob is impressed. “Airspy’s noise reduction design is outstanding. Suppression of hiss enhances weak-signal reception on all modes. While noise suppression and clipping methods on competitive products often result in distorted audio, the HF+’s recovered audio remains crisp and clean of such artifacts on all demodulation modes.” Find out why Bob says, “Price vs. performance pushes the HF+ to the top.”
TSM Reviews: Fox Delta 1–60 MHz Antenna Analyzer Kit
By Robert Gulley AK3Q
Robert was intrigued by the Delta AAZ-0217MX antenna analyzer kit as a project not only for himself, but also as a possible club build for his local amateur radio group. It’s an intermediate level ability kit and, while it’s not expected to be as accurate as professional analyzers, Robert notes, “I would say it is doing a good job, and is certainly capable of telling you when there is a problem. In addition to being an interesting kit to build, for around $60 U.S. shipped, it is also a useful piece of test equipment for the shack.”
TSM Reviews: C.Crane Skywave SSB
By Thomas Witherspoon K4SWL
Always on the lookout for a capable, small, inexpensive, portable shortwave radio, Thomas was keen to put the new Skywave SSB from C.Crane through his real-world tests. It’s certainly got a lot going for it: AM/FM, shortwave, Weather Radio and a scanning Air Band. While, as with any new product, the Skywave SSB had some initial issues, and a higher price tag that other radios in its class, Thomas has a verdict: “It’s going to be my travel radio of choice going forward––it’s essentially a Swiss Army Knife of a travel radio.”
Scanning America
By Dan Veeneman
Long Beach (CA); Tennessee and Miami (FL)
Federal Wavelengths
By Chris Parris
Back to Basics: A Federal Monitoring Primer
Milcom
By Larry Van Horn N5FPW
DoD’s VHF High-Band 138-150 MHz: The Hidden Military Aircraft Band
Utility Planet
By Hugh Stegman NV6H
Winter Fun with European Aero Beacons
Shortwave Utility Logs
Compiled by Hugh Stegman and Mike Chace-Ortiz
VHF and Above
By Joe Lynch N6CL
Sporadic-E: Separating Fiction from Speculation from Fact
Digitally Speaking
By Cory Sickles WA3UVV
Ready – Fire – Aim
Amateur Radio Insights
By Kirk Kleinschmidt NT0Z
A Vertical Redeemed!
Radio 101
By Ken Reitz KS4ZR
SWLing like it’s 1989!
Radio Propagation
By Tomas Hood NW7US
New Year’s Resolutions
World of Shortwave Listening
By Jeff White
Shortwave in Africa – Still Very Much Alive
The Shortwave Listener
By Fred Waterer
Old Shortwave Voice Still Heard
Maritime Monitoring
By Ron Walsh VE3GO
Remembering Halifax Harbor; Marine Frequency Changes
The Longwave Zone
By Kevin O’Hern Carey WB2QMY
New Year’s Resolutions
Adventures in Radio Restorations
By Rich Post KB8TAD
Harman-Kardon A-260 “Chorale” Stereo Amp
Antenna Connections
By Dan Farber AC0LW
Wire Antennas Part One: The Dipole
The Spectrum Monitor is available in PDF format which can be read on any desktop, laptop, iPad®, Kindle® Fire, or other device capable of opening a PDF file. Annual subscription is $24. Individual monthly issues are available for $3 each.
Amateur Radio Weekly – Issue 190
A note to members from ARRL President Rick Roderick
To those who try to suggest that the Board has abandoned its obligation to the members in favor of the organization — you draw a distinction that doesn’t exist.
ARRL
ARRL CEO to retire
Gallagher, 69, cited recent changes included in the new federal tax law that made it unattractive for him to continue working.
ARRL
ARRL: It’s not just the bylaws that need changin’
To this day, neither Mr. Gallagher nor anyone from the BOD has been willing to answer “Why?”
KL7SB
AO-92 transponder and camera tested, further camera tests planned
The first thirty-six hours of AO-92’s life in orbit have seen a flurry of activity as the AMSAT Engineering and Operations teams walk through an extensive checklist of tests.
AMSAT
DPØGVN WSPR beacon in Antarctica is operational
The multiband receiver of the new permanent WSPR beacon DPØGVN in Antarctica has been put into operation.
Southgate
Anticipating Winter Field Day Jan 27/28
The antenna will be a 100-foot loop 30 feet across 20 feet vertical fed at the bottom with an Icom AH4 tuner. This antenna takes up only 30 linear feet, needs no trees. and was designed to fit the campsite.
N4KGL
[PDF] FT8 Operating Guide
Work the world on HF using the new digital mode.
G4IFB
SSTV with a Baofeng
The Baofeng speaker mic would make the perfect donor for a cable between the radio and audio connection of a computer / smartphone.
Essex Ham
3D-printed radio works, despite having no battery
Called a crystal radio receiver, or sometimes a “cat’s whisker receiver,” this is an incredibly simple type of radio receiver that was popular in the earliest days of radio.
Digital Trends
Video
My first uBitX contact
First contact made with my ubitx transceiver after the initial wiring.
VO1UO
Smith Chart: Z, VSWR, reflection coef and transmission line effects
This video gets into several practical aspects of using a Smith Chart to take care of doing complex calculations involving VSWR, reflection coefficient (gamma and rho), return loss, and the impedance transformations that occur when using transmission line between a source (generator, transmitter, etc.) and the load (antenna, amplifier input, etc.).
W2AEW
What Got You Interested in Radio? What Hooked You? (Story Time, with Video)
What got you interested in radio? What hooked you?
I’ve been asked, “What got you interested in radio, space weather, and the science of radio-wave propagation?”
Here’s a short answer as to why (and when) I became a radio enthusiast. It all started…
[embedyt] https://www.youtube.com/watch?v=0XBth62JgwA[/embedyt]
https://www.youtube.com/watch?v=0XBth62JgwA
The following picture is of my first shortwave radio, discovered in my home sometime between 1971 and 1973: a Sony portable transistorized four-band radio receiver. This was my very first shortwave radio (well, truthfully, it was my dad’s). This radio is responsible for my love of radio, electronics, and communications.
I still use this, sometimes, when listening to late-night AM-broadcast-band-radio DX. It is horrible for shortwave radio listening, as it has no noise blanker. For MW (Medium-wave) AM Broadcast DXing at night, it is excellent. The internal bar antenna is very directional so I can rotate the radio around until I get the best reception of some station. Back when I was a child, that made the radio very fun to use.
This next radio is a really capable military surplus radio circa WWII or shortly after (the late 1940s, early 1950s). This radio was my world starting around 1975. From Medium-wave to Shortwave, this radio could hear a pin drop around the world! Many late nights when I was supposed to be sleeping, I was up with the light dimmed and the tubes singing signals from exotic places.
What is your story?73 de NW7US
Addendum:
https://www.youtube.com/watch?v=y8bBM9Dy38o
[embedyt] https://www.youtube.com/watch?v=y8bBM9Dy38o[/embedyt]
Amateur Radio Weekly – Issue 189
Fox-1D launched, initial telemetry received
Initial telemetry values appear nominal.
AMSAT
Ham Radio 360: FaradayRF – Open Source Digital Radio
We pull back the veil and get a glimpse of the future… “Challenging the notion of making a contact.”
Ham Radio 360
ARRL revises changes to Articles of Association and By-Laws
The ARRL Executive Committee is scaling back proposed changes to its Articles of Association and By-Laws.
CQ Magazine
Monitoring power meters with an RTL-SDR
And with one simple command, I was reading the power (and probably water) meters for my entire neighborhood.
kroy.io
Baofeng APRS PTT controller
Baofeng radios trigger the ptt by shorting the sleeves of the two audio connectors. I isolated the audio lines with two audio transformers and set up the pi to trigger the transistor with a GPIO pin.
awsh.org
TyMD380toolz for Tytera MD-380
Now that I have the worldwide database of DMR users loaded onto the radio, its like having caller ID on my HT.
K0NR
Amateur astronomers track secretive spy satellites for fun
If Zuma is still up there, there’s a small group of people who will be ready and watching for it to reappear in a week, when its projected orbit should bring it out of Earth’s shadow and into the daylight.
Popular Science
Why a maritime forecast is so beloved in the United Kingdom
This weather report has been making waves for 150 years.
Atlas Obscura
Video
How Hedy Lamarr changed the world with radio
An overview of frequency hopping.
ARRL
A tip to keep track of charged batteries
This is a little cheap tip I picked up to keep track of the status of multiple charges batteries.
WI9LL
N4KGL FM satellite setup
This is my gear I am using for operating on FM amateur radio satellites like SO-50.
N4KGL
Pocket DATV
Minimal Digital TV chain: Transmitter and Receiver. Hardware used on Tx: PiZero, Picam, LimeSDR Mini. Hardware used on Rx: Raspberry Pi 2, RTL-SDR
YouTube
The Icom 7610 is here!!
The long awaited Icom 7610 is now available, the spec’s on this rig are very impressive. I would say that for all this rig offers it is priced VERY COMPETITIVELY! I won’t list the spec’s just provide this link that gives you the run down……..see what you think?

LETTER TO ARRL REGARDING CURRENT BOARD OF DIRECTOR ACTIVITIES
The following open letter to the ARRL Board of Directors and Leadership is in concert with many others coming from current members in response to the activities occurring at the ARRL Leadership level.
To join in and voice your thoughts, please visit:
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(More information is found after the following open letter)
To: All ARRL Directors and Officers
From: NW7US
Many actions–policy and governance–taken by the League’s leadership over the past two years trouble me. Formalization of specific actions planned for the Board meeting on January 19, 2018, specifically worries me.
At this time, any action taken by the ARRL Board of Directors cause me concern. As a result of this, I add my name to those seeking that the Board delay consideration of any ByLaw changes at the January 19 Board meeting.
In particular, I strongly urge you to:
1. Reject any proposal to allow the President and individual Vice-Presidents to vote as Directors.
2. Reject any provision that allows expulsion of an ARRL member “for cause” without delineated criteria.
3. Reject any provision that allows expulsion of any Director, Vice-Director of Officer for bringing ARRL into “disrepute” without specific criteria.
4. Reject any provision that reduces Members’ ability to recall a sitting Director.
5. Reject any current or proposed provision that allows the Board to disqualify candidates for elected office without full disclosure of the reasons for such disqualification.
6. Reject any proposal that would allow the Board to designate replacements for Directors instead of appointing an elected Vice Director or other elective processes.
7. Reject any current or proposed provision that allows censure, removal or other disciplines of a Director for revealing or openly discussing any view expressed at a Board meeting that is not consistent with the Board’s action.
8. Adopt a policy that elected Directors, and Vice Directors are not “personnel” for the purposes of declaring that any information about removal or disqualification is confidential and may not be released.
It is crucial that ARRL remain a solidly democratic, membership-based organization with principles of openness and accessibility through our elected Directors. I urge you to vote per my wishes at the January 19 meeting.
Beyond these issues of governance, I am concerned about the policy-making process of the ARRL leadership–leadership that I feel has become much less Member-driven, and that no longer reflects the needs of the Membership.
Ham radio is in a time of transition. The ARRL must focus on the issues that make a difference for the future success of the hobby.
73, Tomas Hood / NW7US
More information about this effort:
myARRLvoice is an independent grassroots group of amateur radio operators working on behalf of our fellow Members of the American Radio Relay League (ARRL), monitoring the activity of its leadership and advocating change to optimize the organization’s effectiveness in matters of policy and governance, and to foster ethical and competent stewardship.
myARRLvoice acts as a vehicle for ARRL Members to make their voices heard on matters of governance and policy, and to participate in the policy-setting process, holding our elected and appointed leaders accountable. We strive to make the activities of ARRL leadership more transparent by insisting on the creation and dissemination of records of the deliberations and actions of all ARRL Boards, Committees, and the operational Executive Team.
myARRLvoice believes that good ARRL stewardship can only be achieved through a check and balance system that includes the watchful eye of the Membership.
Visit the website at www.myarrlvoice.org
















