Amateur Radio Weekly – Issue 109
P5: Disease or Sickness?
It’s time for the ARRL to do the responsible thing and delete P5 from the DXCC list.
KE9V
Breached secrecy foiled North Korea DXpedition, group leader says
“What we did not have was the support of those we asked to remain quiet, nor the support of anyone we asked for help with funding.”
ARRL
Three new CubeSats now in orbit
Signals have been received from the three CubeSats launched April 25 on Soyuz flight VS14 from the Kourou spaceport in South America.
Southgate
The Icom IC-7300 vs. Elecraft KX3: Which do you prefer for CW/SSB?
At the end of this post, I have an embedded a survey in which you can vote for the sample recordings you like best.
The SWLing Post
Power Genius XL sneak peak
This baby uses a pair of state-of-the-art LDMOS chips and cruises at 1,500 Watts 100% duty cycle (no worries in RTTY or JT65) and covers 160m to 6m.
With Varying Frequency
FCC Invites Comments to eliminate 15 dB gain limit on amplifiers
Expert maintains that the 15 dB gain limitation is an unneeded holdover from the days when amplifiers were less efficient and the FCC was attempting to rein in the use of Amateur Service amplifiers by Citizens Band operators.
ARRL
USB soldering iron is surprisingly capable
We know what you’re thinking. There’s no way an 8 watt USB-powered soldering iron could be worth the $5 it commands on eBay.
Hack A Day
How the End-Fed antenna gets a bad reputation
When used in a shack you hear all manner of stories of how the end-fed random wire antenna absolutely reeks havoc with RF at the station. So what’s the deal?
Ham Radio QRP
Dissecting D-Star streams between reflectors
In preparation for some software development work contributing to XLX reflector software I wanted to disassemble the UDP stream exchanged between D-Star reflectors and a reflector and a connected node respectively.
Notizbl0g.
W1UL free Ham license preparation
The W1UL method is a ham cram on steroids.
Ham Cram
Company settles charges of operating cellphone jammers
An Alabama company has agreed to pay $20,500 in civil penalties to settle charges that it illegally operated cellular phone jamming devices on its premises, in violation of FCC rules.
Southgate
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.
CLE 206 Results
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| courtesy: http://www.solarham.net/ |
As I usually do, I retuned my inverted - 'L' close to the CLE frequency range and set up my Perseus SDR to make overnight recordings every hour.
I capture two-minute files on the hour and during the best propagation times (usually from midnight to dawn), every half hour as well. The next day I review the files, tuning through the band to see what has been captured overnight. As you might imagine, this can take some time but it allows me to take advantage of any propagation peaks that I might have missed had I been listening in real time for just an hour or two. It also allows me to get a good night's sleep!
Conditions were noisy, on all three nights, with lightning activity over the western states ... but for the most part had cleared up nicely after midnight. The last night (Sunday) saw the best overall propagation, even with a K index of 2. A very nice, but short-lived opening towards the east, brought an additional 18 more catches that had not been heard on the first two evenings, along with some nice NDB signals from Ontario.
23 07:30 198.0 DIW Dixon, NC, USA
23 07:00 200.0 YJ Victoria, BC, CAN
23 07:00 200.0 UAB Anahim Lake, BC, CAN
23 07:00 200.0 5M Sparwood, BC, CAN
23 07:00 201.0 ZWN Winnipeg, MB, CAN
25 09:30 201.0 YKX Kirkland Lake, ON, CAN
25 09:00 201.0 GL La Grande Riviere, QC, CAN
23 10:00 203.0 ZKI Kitimat, BC, CAN
23 10:00 203.0 YBL Campbell River, BC, CAN
25 11:30 203.0 TCY Tracy, CA, USA
25 09:30 203.0 AB Aberdeen, SD, USA
23 10:00 204.0 ZQR Regina, SK, CAN
23 10:00 205.0 COR Corcoran, CA, USA
25 09:00 206.0 XBE Bearskin Lake, ON, CAN
24 12:00 206.0 SOW Show Low, AZ, USA
25 09:00 206.0 IIB Independence, IA, USA
23 10:00 206.0 EF Castlegar, BC, CAN
24 05:00 207.0 YNE Norway House, MB, CAN
23 04:00 207.0 PY Fort Chipewyan, AB, CAN
25 07:30 208.0 YSK Sanikiluaq, NU, CAN
25 10:00 209.0 ITR Burlington, CO, USA
23 07:00 209.0 IB Atikokan, ON, CAN
23 12:00 209.0 CYT Yakataga, ALS
23 06:00 211.0 HDG Gooding, ID, USA
23 06:00 212.0 YGX Gillam, MB, CAN
25 09:00 212.0 MPZ Mount Pleasant, IA, USA
23 12:00 212.0 CGL Juneau, ALS
23 06:00 214.0 LU Abbotsford, BC, CAN
23 10:00 215.0 ZAB Edmonton (Intl Apt), AB, CAN
25 09:00 215.0 AT Watertown, SD, USA
25 08:30 216.0 YFA Fort Albany, ON, CAN
23 07:30 216.0 GRF Fort Lewis, WA, USA
23 07:30 216.0 CLB Wilmington, NC, USA
23 12:00 217.0 EC Enoch, UT, USA
24 07:30 218.0 RL Red Lake, ON, CAN
23 12:00 218.0 PR Prince Rupert, BC, CAN
23 07:00 219.0 ZRS Regina, SK, CAN
23 07:00 221.0 QU Grande Prairie, AB, CAN
23 07:00 221.0 9A Hanna, AB, CAN
23 07:00 222.0 WY Wrigley, NT, CAN
25 09:00 223.0 YYW Armstrong, ON, CAN
23 07:00 223.0 YKA Kamloops, BC, CAN
23 12:00 223.0 AFE Kake Apt, ALS
25 09:00 224.0 MO Moosonee, ON, CAN
23 07:30 224.0 DN Dauphin, MB, CAN
23 07:00 225.0 X5 Vegreville, AB, CAN
23 12:00 225.0 LWG Corvallis, OR, USA
25 09:00 227.0 YAC Cat Lake, ON, CAN
25 11:00 227.0 MHM Minchumina, ALS
23 07:30 227.0 CG Castlegar, BC, CAN
23 07:30 227.0 9X Brooks, AB, CAN
23 12:00 229.0 AKW Klawock, ALS
23 09:30 230.0 YD Smithers, BC, CAN
23 09:30 230.0 VG Vermilion, AB, CAN
23 09:30 230.0 BI Bismarck, ND, USA
25 09:00 233.0 QN Nakina, ON, CAN
23 07:30 233.0 OKS Oshkosh, NE, USA
23 09:00 233.0 BR Brandon, MB, CAN
23 12:00 233.0 ALJ Hinchinbrook Island, ALS
24 07:00 236.0 ZHT Winnipeg IAP, MB, CAN
23 07:00 236.0 YZA Ashcroft, BC, CAN
25 09:30 236.0 JB Whitehorse, YT, CAN
24 07:30 236.0 FOR Forsyth, MT, USA
23 10:00 238.0 MPA Nampa, ID, USA
23 05:00 239.0 OJ High Level, AB, CAN
25 10:30 239.0 BBB Benson, MN, USA
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| courtesy: https://www.google.ca/maps/ |
Hopefully you can jump in for next month's CLE activity. The CLE 206 listening results for all North American listeners and those outside of Europe can be found here.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].
Just the medicine for lowering impedance
Pill bottle balun
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| If I could save RF in a bottle... |
The child and arthritis proof cap keeps the goods away from young and old alike...
Just what the doctor prescribed...
Richard Carpenter, AA4OO, is a regular contributor to AmateurRadio.com and writes from North Carolina, USA. Contact him at [email protected].
SKCC PFX Award!
Burke Jones, NØHYD, is a regular contributor to AmateurRadio.com and writes from Kansas, USA. Contact him at [email protected].
SKCC PFX Award!
Burke Jones, NØHYD, is a regular contributor to AmateurRadio.com and writes from Kansas, USA. Contact him at [email protected].
Music To My Ears
In my 'other' life, before retiring, I taught high school for 35 years. I soon became tired of doing my nightly lesson preps and marking of papers on the kitchen table so I built a large oak roll-top style desk, but without the 'roll' part.It had lots of drawers, both big and small, slots and cubby-holes, and made the nightly homework very much more enjoyable.
The left end of the desk was occupied by my Sony ICF -2010 and above it, on the desk's top shelf, was a small amplified and tuneable ferrite loop antenna. The Sony was tuned to the 500kHz international MF 'distress' frequency, which was mainly used as a CW calling frequency for ships wishing to work the coastal traffic handling stations. Once contact was established, stations would move to the 'QSS' working frequency used by the coastal, so that the distress frequency was not tied-up.
As I sat at the desk doing my nightly prep, the silence would be broken every few minutes with the sound of a CW caller, either a coastal or a ship. It was music to my ears.
On a normal night, the numerous coastals could be heard with their periodic traffic lists interspersed with ships up and down the coast calling with traffic or weather reports. However, on a really good winter night, the frequency was almost constantly abuzz with CW. Ships, as well as the coastals, could be heard from the Gulf of Alaska down to the Gulf of Mexico ... as far west as the Hawaiin Islands and on really rare nights, along the eastern U.S. seaboard. On those nights, 500kHz would sound like 20m CW, even on my little Sony and desktop loop.
Thanks to the forethought of those that had the good sense to record some of those amazing sounds, you can step back in time and listen to what '500' sounded like back in its prime ... recorded somewhere in western Europe.
The most recent 630m crossband activity brought back these pleasant memories of what the band could sound like at times, with several very strong VE7's and a few weaker U.S. experimental stations to the south, all busily calling CQ at the same time on various frequencies. I consider it a huge privilege to be able to operate on this much revered part of the radio spectrum ... one steeped in such great CW tradition.
I think it won't be too long before 630m will sound much like its old glory days again ... and wouldn't that be a wonderful thing.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].
Where is that blasted noise coming from?
Evil RF noise in Ethernet over power adapters
My internet comes in at a corner of the house. In that room I have my cable modem and a WIFI router. Unfortunately the WIFI is seemingly non-existent at the other end of my house and especially in the upper floor opposite the WIFI router. I tried re-orienting it and different antennas to no avail.As a solution, I purchased an Ethernet over powerline adapter. This routed the Ethernet through the house wiring to receivers plugged into outlets at points where the WIFI was weak, thus providing Internet access to those rooms. The model I purchased also had ethernet ports which I needed for some of my older devices.
Ethernet over powerline seemed like an ideal solution.
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| Typical Ethernet over powerline adapter |
The Search
I restored the power and fired up my Yaesu HT which has general coverage receive and tuned it to 7030kHz. I walked around the house and conducted a bit of a fox-hunt for the offending noise. The noise occurred at every outlet in the house !!!I tracked it down to one of the Ethernet powerline receivers. I unplugged it from the wall and discovered blissful silence. I figured it had just gone bad. It was out of warranty so back to the store I went and purchased another set. This time it was a different brand, as the first one was no longer carried.
I installed the new adapters and everything was fine... for a time.
Fool me once shame on you, fool me twice shame on me
This week the noise returned with a vengeance. Being wiser I went straight to the new adapter and unplugged it. Yep it had gone bad again. It was in warranty but I'd learned my lesson. Whatever sort of RF filtering these devices have doesn't last. Something zaps them. I can't plug the receiver into a AC line filter because it stops it from receiving the Ethernet over powerline.So out they came and back to the electronics store I went. This time I purchased a WIFI extender with Ethernet ports built-in. I'm back to blissful RF quiet (to a degree) at my QTH.
The moral of the story
If you have RF noise at your shack and you use these devices, check them out. They could be the S9 noise culprit. If you haven't bought them, take my advice and don't chance it.I didn't think a WIFI extender would work for me because my laptop can't even detect the WIFI in some of my rooms but the WIFI extender (at least the Netgear model) seems to work well. I now have blessed Internet in every room and no more broadband RF noise.
That's all for now
So lower you power and raise your expectations (and rid yourself of pesky RF noise)
72/73
Richard, AA4OO
http://hamradioqrp.com
Richard Carpenter, AA4OO, is a regular contributor to AmateurRadio.com and writes from North Carolina, USA. Contact him at [email protected].

























