FT8 Dominates VHF Contests

The FT8 mode was first released as part of the WSJT-X software in 2017. This new digital mode was adopted relatively quickly and is now a major force in amateur radio. You’ve probably heard the praises and complaints about it. On the plus side, it enables radio contacts under very poor conditions while detractors say that it is not real ham radio because the computer is making the contact. FT8 is an excellent example of a disruptive technology, impacting daily ham radio operations. This summer, I had two operating experiences (VHF contests) that really drove this point home.

My temporary station setup on the porch for the VHF contest.

ARRL June Contest

In the ARRL June Contest, we had very good sporadic-e propagation on 6 meters (and even 2 meters). I used my IC-7610 for 6 meters and usually had one receiver listening on the SSB calling frequency and the other sitting on the FT8 frequency. My strategy was to operate FT8 while keeping an ear on the SSB portion of the band. If signals were present on SSB, I switched over to that mode. The idea is that the run rate on SSB is inherently faster (and more fun), so it is my preferred way to make contacts. 

There was definitely activity on the SSB portion of the band, but it came and went throughout the contest. There were times that I was able to run on a frequency, calling CQ and having a steady stream of stations to work. Other times, I had to search and pounce, tuning around the band to find a new station to work. The FT8 story was different: most of the time there was consistent activity and new stations to work, but at a slower rate.

The FT8 operators tended to stay on FT8, even when the signals were strong. If they wanted to maximize their score, they probably should have switched over to SSB to make contacts at a faster rate. But they didn’t and that is their choice. (One thing I’ve come to accept is that I don’t control the choices that other radio hams make in terms of operating mode and band.) On 6 meters, I made 428 contacts with 80% of them on FT8. Radio operator decisions affect the types of QSOs made and if I focused only on SSB, I would surely have had more SSB contacts (but how many?)

CQ WW VHF Contest

In July, the CQ Worldwide VHF Contest was even more striking. While I was hoping for a repeat of the band conditions from June, the CQ WW conditions were not very good. However, I did manage to make QSOs using FT8 on 6 meters. The run rate was low and I often struggled to complete the exchange before the band shifted. Again, I listened on 6m SSB and picked up contacts there whenever possible. My QSO total for 6m was 164, with 90% of them via FT8.

After the contest, I heard from contesters that used only analog modes (SSB and CW) who reported that the contest was a complete bust. Even with hours of operating time, some folks only made 10 or 20 QSOs. This clearly tees up the choice: if you don’t want to work digital, you can severely limit your number of contacts. On the other hand, if you use FT8, you can make contacts under weak conditions, but at a slower rate with a computer in the loop.

Like many contesters, I would much rather have a nice run of QSOs on SSB filling up my log. It is just way more fun than sitting there watching the computer screen report the slow progress of FT8. But in the end, we all have the same choice when conditions are poor: actually making contacts using FT8 or sitting there hoping that band conditions improve enough to support SSB.

2 Meter Band

I did make some FT8 contacts on 2 meters, but found only a small number of operators using that mode. I expect that FT8 activity will increase on that band as people figure out they can squeeze out a few more contacts & grids using that mode.

73 Bob K0NR

The post FT8 Dominates VHF Contests appeared first on The KØNR Radio Site.


Bob Witte, KØNR, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. Contact him at [email protected].

ICQ Podcast Episode 409 – Your Ideas and Comments

In this episode, we join Martin Butler (M1MRB), Chris Howard (M0TCH), Frank Howell (K4FMH), Bill Barnes (WC3B) and Leslie Butterfields (G0CIB) to discuss the latest Amateur / Ham Radio news. Colin Butler (M6BOY) rounds up the news in brief and in the episode's feature is Your Ideas and Comments.

We would like to thank Roy Jones (VK6RR), Walter Washburn (KT0D), Gary Bridges (WA0VMV), John Bartlett (HK3C) and our monthly and annual subscription donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

  • Students Achieve Radio Surfer Awards
  • Amateur Radio Fun in the Colorado Mountains
  • URE Seeks Community Assistance with URESAT-1
  • Presenter Opinion : CHOTA 2023
  • FCC Recruiting Field Agents
  • ARRL Membership Dues Increases from 2024
  • BiWota - British Inland Waterways on the Air 2023

 


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

Ham College 103


Ham College episode 103 is now available for download.

Extra Class Exam Questions – Part 41
E8C Digital signals: digital communication modes, information rate vs. bandwidth,
error correction.

Download
YouTube


George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

LHS Episode #511: I Hear Banjos

Hello and welcome to Episode #511 of Linux in the Ham Shack. In this short topics episode, the hosts discuss the National Boy Scout Jamboree, SOTA activations in Colorado, volunteerism in amateur radio in Sacramento, commercial radio in the HF bands, Snowstorm, Linux on the desktop, COSMIC, Proton Pass and much more. Thank you for listening and have a great week.

73 de The LHS Crew


Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

Hunting For NDBs in CLE294

YZS-362 Coral Harbor, NU (ve3gop.com)
 

Another month has zoomed by and it's CLE time once again. This is a challenge for all newcomers to NDB listening and the ultimate test of your medium frequency receiving capabilities. Can you meet the challenge?

'CLE's are 'Co-ordinated  Listening Events, and NDB DXers around the world focus their listening time on one small slice of  the NDB spectrum.
 
With the number of targets slowly being decommissioned, the hunting grounds have been slightly widened ... this month the frequency range is for the NDBs whose published frequencies are between 350.0 - 369.9 kHz

A good target for all NA listeners is powerhouse YZS on 362 kHz, located at Coral Harbor, Nunavut. Listen for its upper sideband CW identifier on 362.402 kHz.

When tuning for NDBs, put your receiver in the CW mode and listen for the NDB's CW identifier, repeated every few seconds. Listen for U.S. NDB identifiers approximately 1 kHz higher or lower than the published transmitted frequency since these beacons are modulated with a 1020 Hz tone approximately.

For example, 'AA' near Fargo, ND, transmitted on 365 kHz and its upper sideband CW identifier was tuned at 366.025 kHz while its lower sideband CW ident could be tuned at 363.946 kHz. Its USB tone was actually 1025 Hz while its LSB tone was 1054 Hz.

Often, one sideband will be much stronger than the other so if you don't hear the first one, try listening on the other sideband.

Canadian NDBs normally have an USB tone only, usually very close to 400 Hz. They also have a long dash (keydown) following the CW identifier.

All NDBs heard in North America will be listed in the RNA database (updated daily) while those heard in Europe may be found in the REU database. Beacons heard outside of these regions will be found in the RWW database.

From CLE organizers comes the following info:

Hello all,

Our 294th Co-ordinated Listening Event is almost here.

First time CLE logs too?  Yes, please! 

Short logs are always as welcome as long ones.

 Days:     Friday 28 July - Monday 31 July

Times:   Start and End at midday, your LOCAL time

Range:   350.0 - 369.9 kHz   

Please log all the NDBs you can identify that are listed in this range (it includes 350 kHz but not 370) plus any UNIDs that you come across there.

Send your final CLE log to [email protected], preferably as a plain text email, not in an attachment and - important - with 'CLE294' and 'FINAL' in its title.

 

Please show the following main items FIRST on EVERY line of your log:

#   The Date (e.g. 2023-07-28) or just the day (e.g. 28)

#   The Time in UTC (the day changes at 00:00 UTC).

#   kHz - the beacon's nominal published frequency, if you know it.

#   The Call Ident.

 

Optional details, such as Location and Distance, go LATER in the same line.

Please make your log useful to everyone by including your listening location, its 6-character Maidenhead Locator if you know it, and brief details of the receiver and aerial(s).

 

We will send the usual 'Any More Logs?' email at about 19:00 UTC on Tuesday so you can check that your log has been found OK.

To be included in the combined results, do make sure that your log has arrived on the List by 08:00 UTC on Wednesday 2 August at the very latest.

 We hope to make all the combined results within a day or so.

 You can find full information about current and past CLEs  from the CLE page https://www.ndblist.info/cle.htm.

You can also find your relevant seeklists made from REU/RNA/RWW by visiting https://rxx.classaxe.com/cle.

Good listening

Brian & Joachim

(CLE coordinators)

(Reminder:         If you wish you can use a remote receiver for your loggings, stating its location and owner -  with their permission if required.

A remote listener may NOT also use another receiver,  whether local or remote, to obtain further loggings  for the same CLE)


CLE's provide several purposes. They:


• determine, worldwide, which beacons are actually in service and on-the-air so the newly-re-vamped Rxx online database can be kept up-to-date

• determine, worldwide, which beacons are out-of-service or have gone silent since the last CLE covering this range


• will indicate the state of propagation conditions at the various participant locations


• will give you an indication of how well your LF/MF receiving system is working


• give participants a fun yet challenging activity to keep their listening skills honed


Final details can be found at the NDB List website, and worldwide results, for every participant, will be posted there a few days after the event.


The NDB List Group is a great place to learn more about the 'Art of NDB DXing' or to meet other DXers in your region. There is a lot of good information available there and new members are always very welcome. As well, you can follow the results of other CLE participants from night to night as propagation is always an active topic of discussion.

You need not be an NDB List member to participate in the CLEs and all reports, no matter how small, are of much value to the organizers.

Remember - 'First-time' logs are always VERY welcome!

Reports may be sent to the NDB List Group or e-mailed to CLE co-ordinator, Brian Keyte (G3SIA), whose address appears above. If you are a member of the group, all final results will also be e-mailed and posted there.

Please ... give the CLE a try ... then let us know what NDB's can be heard from your location! Your report can then be added to the worldwide database to help keep it up-to-date.

Have fun and good hunting!

Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

Amateur Radio Weekly – Issue 293

Amateur Radio Weekly

Special ISS SSTV experiment scheduled for ARRL Teacher’s Institute
The pass will be over the Mid-Atlantic area with transmissions scheduled to begin at 16:05 ET and ending at 16:20 ET.
ARISS

Building a simple Faraday Cage
This article describes the effects of EMP and CME and how to build a simple inexpensive Faraday cage.
Survival Blog

Monitoring the temperature of our radios
A stick-on temperature label may be the answer.
AE5X

How does a ground tuning unit work?
Tuning an entire planet? Now that’s a different matter!
Ham Radio Outside the Box

HOA antenna challenges
How I accepted the antenna challenge and kept the HOA hounds or condo cops from having their heads spin backwards.
VE9KK

Modifying a battery fan to also run from 12 volts
A blog post about a fan? Really?
KA7OEI

Careers for Hams: ARRL is hiring
ARRL has open positions for full-time employment in both technical and non-technical areas of the association.
ARRL

Video

RadioBerry HF SDR transceiver Pi Hat
RadioBerry has a maximum bandwidth of 384 kHz and an operating frequency range of 0 to 30 MHz.
Tech Minds

Interview with SP5WWP of the M17 Project
Why SP5WWP created M17 and how to get started with it.
Ria’s Ham Shack

Inside the ARRL with CEO David Minster NA2AA
A free-wheeling conversation about culture and being responsive.
W1DED

Stealth HOA Ham Radio antenna flag pole
The HOA will never know.
HOA Ham

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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.

Part 2: Condo antenna challenges.

 

The MFJ loop covered and ready to go into service.

 In part 2 of antenna challenges, I want to dive into living in a condo and getting on the air. Many amateur operators at some time have found themselves moving into an apartment to save for a home or downsizing into a condo when the house has grown too big. 

This lifestyle does not mean the radio hobby is tossed. Most of us find our radio hobby adds pleasure to one's day. For me when I was in a condo it meant just another hurdle to overcome toward getting on the air. In my readings, I have seen hams who have erected wire, mobile whips and so on. I have never tried any of these and if you have please do share what you have tried. The condos that I have lived in were heavy on condo cop protection and the list was long as to what could and could not be on a balcony. One of the items on the list was antennas and as for me, I look at that as where there is a will there is a way!

Yearly checkup


 In all the condos I have lived in I have always had a balcony to take advantage of for an antenna. After investigating many antennas the best solution (a pricey solution) was a mag loop antenna for the balcony. It offered a small size, if needed it could be taken in and out from the balcony and as well its multi-band antenna. In the past, I have had mag loops such as an AEA isoloop, Chameleon P-loop and Alex loop. I planned to leave the loop on the balcony and not have to run in and out to tune the loop. I ended up purchasing the MFJ 1786 mag loop and this loop gave me the desired remote band tuning I wanted. I then purchased a tripod to mound the loop and next was how to conceal the loop. I ended up getting a patio furniture cover which looked great and to the condo cops, it was just another piece of patio furniture on the balcony. I was thrilled the cover did not affect the SWR at all as I was prepared to remove the cover during operation and then cover it once done. The mag loop had to be moved around the balcony for the best overall SWR. This took some time and once done I marked the balcony floor with a permanent marker. Also in the front of the loop is a round copper wire and by changing its shape also can help with improving the SWR.

Changing the shape improves SWR

This way when it was stored in the corner during non-use I was able to put it in the right spot for best operation. The loop was very fussy and putting the loop in the exact spot was important for the best possible SWR. The loop was tried both in the vertical and horizontal position. I was not able to get a decent SWR when the loop was mounted vertical. I ended up using it in the horizontal position. This was also great for the cover as it looked like a patio table I was covering. I used the Comet CTC-50M (flat coax cable) to feed out the sliding glass door so the coax would be permanent as well. This setup allowed me to place the antenna in position and start operating. Again in this configuration, I was strictly CW and I also added digital communications as well. I admit it is not an ideal situation but it got me on the air and making contact.
In my third and final antenna challenge post I want to share some other antennas I have tried some failed, some worked and others were crazy and worked. After using the loop for a short while I became very fast at tuning the loop. I also found in the summer if the humidity was high it would affect the SWR. Once a year I took the loop in for an inspection and remove any bugs that made the loop home.


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

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