Amateur Radio Weekly – Issue 359

Amateur Radio Weekly

Iowa State club launching experimental repeater today
High altitude balloon will make FM contacts possible across the Midwest.
Minnesota Ham Radio

Machine learning enhanced FM digital voice
Transmitted over the air (OTA) using commodity FM UHF radios.
FreeDV

Prototype 2el Yagi for Radiosonde fox hunting
The design is for a two element Yagi using a Half Folded Half Wave Dipole driven element and reflector.
owenduffy.net

Open-weather apt
A browser-based decoder for automatic picture transmissions (apt) from satellites NOAA-19, NOAA-18 and NOAA-15.
Open-weather

POTA has a REST API
A Python script for tracking the parks near you that you haven’t activated yet.
Copasetic Flow

KSKO’s one man, full-time operation connects interior Alaska
Alongside the McGrath studio, a collection of seven repeater stations and two partner stations broadcast widely — across stretches up to 150 miles.
Alliance of Rural Public Media

AI noise removal from off-air single sideband
It should be possible to do this sort of processing in near to real time.
marxy’s musing on technology

Why we designed the high school direct conversion receiver
We might have used a variable capacitor but variable capacitors are now expensive and hard to source.
SolderSmoke Daily News

VLF receive loop
More verticality?
Real-World Amateur Radio

AI generated Ham Radio song
With the help of AI, I chose a slightly different musical arrangement for a more universal version.
RADIOSCOPE

Video

Ham Radio for Hackers
Some people consider ham radio operators to be the original hackers.
HOPE XV

2-meter operations above the cloud deck
Flight from KTIW to W27 over a blanket of cloud cover due to a temperature inversion.
W7NY

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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.

Checking out 10m band conditions before ARRL 10m contest next weekend.

24 hours on 10m
 This coming weekend is the ARRL 10m contest this is both phone and CW contest and I will be taking part as CW only. I wanted to have a peek at conditions on 10m before the weekend arrived. I brought my WSPR  transmitter by ZachTek into action. I set it up for 10m only and let it run for 24 hours. This would give me an idea of the best times to be on the 10m band. I also plan on another 24-hour session from Thursday morning to Friday morning. 
Time stamp of when 10m is best for me
  This session in the post ran from Tuesday morning until Wednesday morning. From my results, the band starts to come alive around 8 am local time and drops off at 8 pm local time. 10m seems to peak from noon to 3 pm local time here. After 3 pm it was still in good shape but was up and down until a sudden drop at 8 pm. The Kp index ranged from Kp3 to Kp2 over the 24 hours. My operating times will be morning to early evening mainly within North America.    
Antenna radiation pattern for 10m Hustler 4BTV
 

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

Time to “Fair-Rite” out the issue!

 

Order bulk and save!

Those of you who are regular blog readers know I have had my fair share of RFI that has affected my PC, washing machine, headphones and key. I have been doing some reading that all ferrites are not alike. Yes, they may be a mix 31 but there are good and very good ferrites on the market. I looked around at the popular dealers that dealt with chokes both beads, snap on and rings. I have read many good reviews on the Fair-Rite brand of ferrites. There were two electronic dealers I have dealt with in the past Mouser and Digikey. Mouser was where I ended up as I had ordered from them and was very happy.  I found the Fair-rite snap-on chokes I wanted and ordered them along with one Fair-rite round ring ferrite. These items shipped the same day and were at my door in no time. My mission with the new ferrites was to solve my PC  issue. When operating N1MM+ contesting program now and then (mostly at the most inconvenient of times) the Windows hourglass would pop up on my screen. For anywhere from 4 seconds to 20 seconds I was not able to transmit using any of N1MM+ macros. Not good when a station is waiting for a contest reply from me. The other thing that happened again in  N1MM+ the log window would just go black. The only way to solve this issue was to restart the program.
I have an idea what the issue may be and I want to see if this Fair-Rite product is truly a quality product or not. More on that in the next post.


Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

ICQ Podcast Episode 444 – Pennine Ham – Nick G4IWO

In this episode, we join Martin Butler M1MRB,Caryn Eve Murray KD2GUT, Edmund Spicer M0MNG, and Ed Durrant DD5LP to discuss the latest Amateur / Ham Radio news. Colin Butler (M6BOY) rounds up the news in brief and the episode's feature is Pennine Ham - Nick G4IWO.

We would like to thank our monthly and annual subscription donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

  • RADIO D.A.R.C. to broadcast out of England from January 2025
  • Changes Underway in ARRL's Vec Program
  • A Big Brother-Ish Use Of The 5.9 Ghz Band?
  • Encourage Youngsters on the Air
  • 25th Annual SKYWARN Recognition Day
  • Santa Net Runs Through Christmas Eve
  • RSGB HF Contest Changes

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

Amateur Radio Weekly – Issue 358

Amateur Radio Weekly

25th annual SKYWARN Recognition Day December 7
SRD was established in 1999 by the National Weather Service and ARRL to commemorate the contributions of SKYWARN volunteers.
ARRL

The best Raspberry Pi Ham Radio projects
Go boxes, cyberdecks, Pi-rate radios, and more.
ALL3DP

MorseLink: Chat online by Morse Code
Supports automatic key mode and manual key mode.
MorseLink

Shortwave radio: A unique collection from the Cold War era
The Chuck Vesei Shortwave Radio Artifacts collection has hundreds of items received from shortwave broadcasters from 1984 to 1986.
Internet Archive

South American satellite pirates
A clandestine network of individuals who have ingeniously tapped into retired UHF MilSat bands.
Vapor95

US Amateur License demographics update
District 7 states by far have the most operators per capita.
SupremeVinegar

Adding radials to a mag mount
In this configuration, I got the SWR down to about 1.2:1. Success!
WB3GCK

SatPathFinder for iOS
There is a special option for radio amateurs to calculate sked times.
Mac Ham Radio

The “Universal TCXO”
A TCXO is a device that improves the absolute frequency stability and accuracy of a radio.
KA7OEI

Video

All Parks Oklahoma
US-7686, Lake Elmer state fishing lake.
KJ5APW

AMSAT OSCAR 7: The little satellite that could
Take a trip with me as we tell the tale of the “miracle” satellite.
Retro Rockets

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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.

The CQ world wide DX CW contest

 


The conditions for contesting were both great solar weather-wise and local weather-wise. The solar weather was very favourable during the entire contest which was nice. The sun has been very active these past few months and this weekend it was nice and calm. Local weather was just right for contesting as well...it was pouring rain and windy all weekend. Why is this great you ask..well during the contest slow periods no sun and the blue sky were calling my name to get outdoors. My goals for this contest were to have fun (check), run for 98% of the time (check), beat last year's score (double check) and hopefully have no radio or PC issues (check).


As always this was a very well-attended contest with lots of DX so even if you are not an avid contester there was an advantage to logging some rare DX. My radio was the Icom 7610 at 100 watts using the Hustler 4BTV vertical antenna. Max  CW speed was at 34wpm and toward the end I dropped it to 30wpm. For most of the contest, the Kp index was Kp3 and dropped to kp1 toward the contest end. The Bz index was in the plus for Friday and Saturday but headed in the negatives on Sunday. When the Bz dips in the negative numbers it accounts for problematic signal fading. At times the caller was there and then gone. 


I was very pleased all the way around,  the radio worked great, the PC and its software had no issues and the solar conditions behaved themselves. Mind you toward the end of the contest I  started to have a little brain fog and messing up similar CW letters such as H and S and on occasion transposing letters. This year I also made a point to not take things personally. What I mean by this is when asking for a few repeats because at my end I had either a close station wiping them out or another station calling me on top of the desired station. In the past when the station I was asking repeat from seemed to leave in a huff it used to bother me....well not anymore. In the past, I took things personally and that took the fun out of contesting....well no more. 

A very busy map of my contacts.


Some things that threw me off were stations coming back to me with "DE WXYZ". I would copy DE thinking it was the first two letters to only find out they were sending "DE" for "this is". I have my filter set for 400hz when calling CQ TEST and in crowded bands like in the CQ WW contest that is wide for me. I would have some stations come back to me way off my calling frequency. Most of the time I thought they were answering another CQ TEST close to me....but not so. I would end up adjusting the RIT make the contact and get back. But that was it and I am not by any means complaining just sounding off a bit. 


Well ok, just one more....those who when they send back their exchange would also send their call again which makes me think I messed up their call.  This became problematic when their call was "HSH" or "KH5" so made for unnecessary back and forth while others waited to contact me....or some would just step in with their call knowing the call was good the way I had it.  I also had fellow blogger Bas PE4BAS contact me during the contest as well.
When you hit 1750 CW contacts once you're done with the contest and in bed with your eyes closed you can still hear cw code in your head rolling around. I had a blast and am looking forward to the next contest.

Very happy with the outcome.



Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

Amateur Radio Weekly – Issue 357

Amateur Radio Weekly

Drama, farce, a Radio Ham and the Baker Street bank heist
A gang tunnelled into a secure vault while all the time being listened to by an Amateur Radio operator.
BBC

Ham Radio for Hackers
All the seats were filled because they actually wanted to learn more about Amateur Radio!
KB6NU

Dwingeloo telescope tests 8.4 GHz reception
We successfully detected the carrier signal of three Mars orbiters: Tianwen-1, MAVEN, and MRO.
Dwingeloo Radio Telescope

Repeater Builder: So you want to build a repeater
The largest repeater information site in the world.
Repeater Builder

Calibrating the KX2 by ear
I’ve got two radios I can just use them to test myself, without having to deal with propagation and everything else.
GM5ALX

POTA on Ellis Island
Planning, plotting, and activating.
QRPer

HamClock
A fun, fast Ham Radio project.
PE4BAS

QO-100 Log Parser
Simple ADIF log conversion tool for QO-100 satellite contacts.
SQ8W

The design and test of a filtered low noise amplifier
An LNA can help improve the reception of an SDR by reducing the noise figure of the system, and by overcoming losses from long coax cable runs.
RTL-SDR

Mapping the ionosphere with millions of phones
Millions of Android phones can provide an accurate picture of the ionosphere in areas of the world underserved by conventional infrastructure.
Nature

Video

LongChat: QRP Ham Radio text chat
Chirp signals for power efficient messaging.
LongChat

An intro to LoRa APRS
10 km range with 20 milliwatts.
LB0FI Norwegian Hamventures

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