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Amateur Radio Weekly – Issue 124
10 September 2016 | by 
Air Force to ‘bomb the sky’ to improve radio reception
CubeSats could carry massive amounts of ionized gas to the ionosphere to create radio-reflecting plasma.
Prepared Ham
Smaller solar cycles ahead?
Data suggest that Cycle 24, the current solar cycle, will bottom out in 2020.
ARRL
Michigan State Parks on the Air
It looks like the program will get started next year.
KB6NU
Emergency preparedness: How will you communicate?
September is recognized as National Preparedness Month.
Icom America
The woman behind the KM5R repeater
Once upon a time there lived a home-schooled fairy princess named, Melissa, or as she later became known, KM5R.
Weekly North Texas net for YLs
YL International Single Sideband System
The ISSB System operates on 14.332 MHz, 365 days of the year.
YL System
September VHF Contest this weekend
The goal is to contact as many different stations in as many 2 × 1 grid squares as possible on frequencies above 50 MHz.
ARRL
Batteries for portable Amateur Radio use
I’ve used everything from car batteries, Sealed Lead Acid Batteries (SLAB), standard AA’s, Lithium Polymer (LiPo) and Lithium Iron Phosphate Batteries (LiFePo).
M0JCQ’s Ham Blog
Can you ID this mystery digital signal?
I noted beeps at Hz repetition rate, does not appear to be data, it beeps for about a minute then there is a short data burst then beeping again for a minute or two.
The SWLing Post
Video
VHF Transmitter key-up analysis
Based on what I learned about this radio, I won’t be operating it at the high power level due to the frequency drift.
W2AEW
Random wire portable antenna back yard test
I decided to try a random wire in the back yard with QRP power and portable set up for some fun and to see how it would work for me.
RadioHamGuy
Jogging while listening to the Space Station
This is my reception of Astronaut Jeff Williams talking with summer camp students at the Kopernik Observatory and Science Center.
Space Comms
Lightning strikes on the Maestro/Flex 6300
Perhaps it’s time to disconnect the antennas and call it a day.
The Radio Hobbyist
Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at http://www.hamweekly.com.
AREDN Mesh Weather Camera
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| PTZ HD weather cam on the mesh! |
Last week Randy (KD9FGO) and I mounted a pan-tilt-zoom (ptz) camera up on a grain elevator. At 250 feet, the view is great. The purpose of the camera is to be able to watch the weather roll into the area. We do send out weather spottters occasionally, but there are few locations where you get such a great view as from 250 feet above the surrounding terrain! We used a Sunba 1080p HD IP camera, sold for $330 on Amazon. A single shielded CAT5 line runs from the camera to a Power Over Ethernet+ (POE+) injector, and then on to an ethernet switch where the AREDN mesh 5GHz node is connected.
We’ve added another AREDN node at the fire station (EOC) so that the camera can be viewed from there. And of course, it can be viewed from other nodes on the mesh. Right now, that means at the home of another ham and my shack as well. (Our other mesh sites are un-manned repeater sites.)
The picture above was taken with a cell phone, taking a picture of a laptop at the EOC. The actual picture quality is HD – it is absolutely amazing.
The next step is to add another ptz camera 5 miles north of town at another grain elevator. This site has a better view to the north and north west, while the first site has a great view from south to north west. We are also planning to showcase this solution to a couple of the other area emergency managers. Now that we have a solid mesh backbone established, adding additional sites is as easy as adding a $100 mesh node and a $330 camera.
Michael Brown, KG9DW, is a regular contributor to AmateurRadio.com and writes from Illinois, USA. Contact him at [email protected].
AREDN Mesh Weather Camera
|
| PTZ HD weather cam on the mesh! |
Last week Randy (KD9FGO) and I mounted a pan-tilt-zoom (ptz) camera up on a grain elevator. At 250 feet, the view is great. The purpose of the camera is to be able to watch the weather roll into the area. We do send out weather spottters occasionally, but there are few locations where you get such a great view as from 250 feet above the surrounding terrain! We used a Sunba 1080p HD IP camera, sold for $330 on Amazon. A single shielded CAT5 line runs from the camera to a Power Over Ethernet+ (POE+) injector, and then on to an ethernet switch where the AREDN mesh 5GHz node is connected.
We’ve added another AREDN node at the fire station (EOC) so that the camera can be viewed from there. And of course, it can be viewed from other nodes on the mesh. Right now, that means at the home of another ham and my shack as well. (Our other mesh sites are un-manned repeater sites.)
The picture above was taken with a cell phone, taking a picture of a laptop at the EOC. The actual picture quality is HD – it is absolutely amazing.
The next step is to add another ptz camera 5 miles north of town at another grain elevator. This site has a better view to the north and north west, while the first site has a great view from south to north west. We are also planning to showcase this solution to a couple of the other area emergency managers. Now that we have a solid mesh backbone established, adding additional sites is as easy as adding a $100 mesh node and a $330 camera.
Michael Brown, KG9DW, is a regular contributor to AmateurRadio.com and writes from Illinois, USA. Contact him at [email protected].
Late Summer Hike on Shute Hill
I hiked on Shute Hill this afternoon. It’s definitely late summer. The sounds of crickets say so. The loud buzzing of bees on the goldenrod tell me fall is around the corner. I made a wonderful 2-way QRP QSO with Georgia.
The trail goes south and east from the old cemetery off the Rufus Colby Road. It goes all the way over the hill to the range road on the other side.
I walk for about 20 minutes. There are asters and goldenrod everywhere.
I set up along the trail under a beautiful oak tree. I’m using the MTR by Steve Weber, KD1JV. It’s a tiny 3-band rig powered by 8 AA cells. It gives me about 3 watts. I have hung a 20 meter dipole as a vertical from a branch and I sit on the ground with the MTR in my lap.
I hear K4JPN Steve in Georgia finishing up a QSO and I call him. He answers right away and gives me a 579. He is 599. He is running a K2 to a 3 element beam. He drops his power down to 2 watts. I still have solid copy and we chat for about 15 minutes. I’ve worked Steve about a half dozen times before. He spent lots of time in New Hampshire as a youngster and he’s as glad as I am for the contact.
Here’s my view from my operating position. At the bottom right of the photo, you will see a water bottle. It is hanging from the end of the dipole keeping the antenna taut.
It’s not a fancy place with a spectacular view. But it’s beautiful nonetheless. I pack up and hike back to the cemetery where I left my car.
Jim Cluett, W1PID, is a regular contributor to AmateurRadio.com and writes from New Hampshire, USA. Contact him at [email protected].
Getting Ready For The ’29 QSO Party
Although the Bruce Kelly 1929 QSO Party is not until December, now is really the time to be putting something together if you've been thinking about getting in on the fun this year!
Like almost all of the operating in 1929, this is a CW only affair and if you've taken a listen in previous years, you know that the chirps, yoops, sudden frequency excursions and musical notes are all part of the original difficulties faced by the boys of '29 as they struggled with the relatively new adventure of 'amateur radio'.
Why 1929 you ask? It was the Radio Act of 1927 that came into effect in 1929 that laid out the foundation and future of amateur radio, with most of the early tenets still in effect today. The BK QSO Party celebrates the turning point in what had been pretty much a radio 'free-for-all' up until that time. Real progress was made quickly once the ground rules were established.
Rules of the BK Party require that all transmitters use tubes that were available in 1929 or earlier and must be self-excited ... no crystals allowed! This might seem to present a daunting task but in reality there are many readily available tubes that will make your transmitter legal.
In three previous blogs I've outlined some of the construction options available to new BK entrants and you can probably find enough information there to get you well on your way to some mid-winter fun. You will find links to these on the sidebar to the right.
Over the past three years I have posted a lot of 1929-related material, covering construction as well as BK Party activity. You can get all of these '29 blogs here and get enough bedtime reading for the week and hopefully, enough inspiration to grab the soldering iron and think about throwing something together for the party ... and it doesn't have to be pretty, as long as it works and is 'legal'! As well, my website has detailed construction information for three of my own '29-style transmitters.
I'm always impressed with the level of operating seen in the BK Party. For some reason, these guys can copy the weakest most awful sounding signals with ease. If you can get something going with a couple of watts or more, I guarantee that you will be heard and will work many of the '29 stations ... just don't wait to late to start building as I'd hate for you to miss all the fun!
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].
Haven’t said this in a while
On the QRP side of things, I see from an e-mail by Doug KI6DS to the QRP-L list that the QRPGuys have a new kit offering out. The following is their description:
The QRPGuys Multi-Tuner is a Z-match design that will match a wide range of coax fed, long wire, and balanced line antennas, like high-impedance, low-loss UHF twinlead or ladder line for 40m-10m.
It uses the N7VE integral led swr indicator with an absorptive bridge to protect your final transistors from a poor match. In the TUNE position, you cannot damage your transmitter caused by a high SWR. It is looking at a 50 ohm load and the LED is indicating only the reflected power. At full brilliance your SWR is 4:1 or greater, at half brilliance your SWR is approximately 2:1, and the LED will completely extinguish at 1:1.
Rated for 5 watts continuous, 10 watts intermittant, weighs (4.3 oz.) and comes with female BNC connectors for the input/output, with S.S. hardware for the long wire and balanced line connections. There is no point to point wiring. All connections are accomplished by mounting the components on the PCB. This kit can be built in a couple of hours. On a difficulty scale of 1 to 5, 5 being the most difficult, this is rated at 3.
For more information, and ordering, you can go to http://www.qrpguys.com/
I don't have to tell you (but will, anyway) how important it is for us to patronize concerns like QRPGuys, QRPMe, QRP Kits, SOTA Beams, and the numerous other QRP vendors around the world that are out there. Blogging is my way to give a bit back to the hobby. Offering kits is the way these guys give back to the hobby. Yeah, they are there to make a buck or two; but they're definitely not in this with visions of becoming the next Elecraft. You keep me "in business' by reading; and we keep them in business (and as a result, keep the QRP hobby alive) by purchasing their wares.
72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].
Haven’t said this in a while
On the QRP side of things, I see from an e-mail by Doug KI6DS to the QRP-L list that the QRPGuys have a new kit offering out. The following is their description:
The QRPGuys Multi-Tuner is a Z-match design that will match a wide range of coax fed, long wire, and balanced line antennas, like high-impedance, low-loss UHF twinlead or ladder line for 40m-10m.
It uses the N7VE integral led swr indicator with an absorptive bridge to protect your final transistors from a poor match. In the TUNE position, you cannot damage your transmitter caused by a high SWR. It is looking at a 50 ohm load and the LED is indicating only the reflected power. At full brilliance your SWR is 4:1 or greater, at half brilliance your SWR is approximately 2:1, and the LED will completely extinguish at 1:1.
Rated for 5 watts continuous, 10 watts intermittant, weighs (4.3 oz.) and comes with female BNC connectors for the input/output, with S.S. hardware for the long wire and balanced line connections. There is no point to point wiring. All connections are accomplished by mounting the components on the PCB. This kit can be built in a couple of hours. On a difficulty scale of 1 to 5, 5 being the most difficult, this is rated at 3.
For more information, and ordering, you can go to http://www.qrpguys.com/
I don't have to tell you (but will, anyway) how important it is for us to patronize concerns like QRPGuys, QRPMe, QRP Kits, SOTA Beams, and the numerous other QRP vendors around the world that are out there. Blogging is my way to give a bit back to the hobby. Offering kits is the way these guys give back to the hobby. Yeah, they are there to make a buck or two; but they're definitely not in this with visions of becoming the next Elecraft. You keep me "in business' by reading; and we keep them in business (and as a result, keep the QRP hobby alive) by purchasing their wares.
72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].
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