Posts Tagged ‘portable ops’
The history of the early 1800s in the United States’ development holds meaning for today. More than we tend to realize. Back before Mississippi was a state, the Federal Government called it “I.T.,” short for Indian Territory. Territories were not “settled” from a Federal viewpoint. During those times, many footpaths established by Native American Tribes—for instance, the Choctaws—became passable roads for travel by foot, horses, carriages and stage coaches. The opportunity for interim settlers, mostly whites but not always, became obvious: Where are the Holiday Inns of the day? There were some, of course, but they were rudimentary places along the paths from here to there, offering a break in the daily travels, food, drink, and overnight accommodations. They were typically called “Stands,” and most often had enslaved peoples working there.
Inns, or stands, provided occasional shelter for travelers along the Natchez Trace from the 1790s to the 1840s. These stands offered food to eat and food for thought: local news, information, and ideas. The ever-changing mix of diverse people – whites, American Indians, African Americans – interacted at the stands on a regular basis.National Park Service
My portable operations team, consisting of Mike N5DU, Thomas N5WDG, Mike K5XU and myself, availed ourselves of such a break in the daily tasks on Saturday, October 9, 2021 to activate the historic site of Brashear’s Stand on the Natchez Trace Parkway in Ridgeland, MS. It’s just a mile or two from my house. Here’s what it was like back more than a century ago:
Brashears Stand is named after Turner Brashears, who moved to the area in the late 1700s. He became a trader with the Choctaw and learned their language.
“In 1806 Turner Brashears placed an advertisement in the Natchez newspaper about his stand labeling it “A house of Entertainment on the road leading from Natchez to Nashville.” Travelers on the Natchez Trace generally seemed to be pleased with their treatment and accommodations at Brashears Stand. In 1807 Reverend Jacob Young, a Methodist preacher, wrote “Near the line that divided the Choctaw Nation from the Mississippi Territory stood a fine public house kept by a man by the name of Brashears…He treated us very well but knew how to make a high bill.” In addition to earning money from his stand operation, Brashears prospered by selling land and enslaved people.” (National Park Service)
The Stand no longer exists but it’s a testament to what we hams sometime take for granted when we get outdoors to enjoy our hobby. One inspiration of mine to better understand these environs is the well-known POTA and SOTA activator and blogger, Thomas Witherspoon K4SWL (see QRPer.com). He is always appreciative in his blog posts about the park or summit he’s activating. This area was the location my team chose for our very first POTA activation. Here’s the setup, two permanent picnic tables with 100+ foot pines. That and perfect weather make for an enjoyable time whether the band conditions follow suit or not.
The four of us paired up at each of the two permanently mounted picnic tables. We placed old sheets on top of the tables. You may guess why since there are lots of birds in the area! We used N5DU’s Xiegu G90 (the one Rob Sherwood tested for his website) for FT8, K5XU’s Kenwood 590s for CW, and my new Icom IC-705 on it’s maiden voyage. Mike K5XU has been blind since birth and is a 50 year amateur licensee and career broadcaster. (Learn more about Mike’s amazing life and career on the ICQ Podast episode 299 here.) He is the CW op for our team. Thomas N5WDG is a wide area network engineer covering several states for AT&T and is one of my engineering Elmers. Mike N5DU has become our FT8 leader. I can neither deny or confirm that he uses the G90 bedside at night to work other countries via FT8. Mike is the State of MS RACES Officer for the Emergency Management Agency and practicing attorney in Jackson MS.
Given the tall pines in this small park area, we used three EFHW antennas I had built in the past month. I ran across an eBay vendor, John KG6ZBN (seller name eddieson), who was selling both 1:9 and 1:49 UnUns for $10-$12. I could not source the parts for that! Since George at Packtenna was out of stock on his EFHW antennas, I just bought several of John KG6ZBN’s EFHW UnUns as shown below for the 1:49 model. I did follow George’s build specs using the #26 Silky Wire from The Wireman. This wire for low power is a wonder. One of the EFHW’s is shown below with inexpensive plastic kite winders to manage the wire. I use S-hooks to link the kite winder in the air to very small paracord once I have the latter over a tree branch or something. A sweep of one of the 1:49 EFHW is shown using a RigExpert Stick analyzer and Antscope illustrates the resulting SWR dips in the HF bands. The bluetooth-connected “blue stick” was connected at the SO-239 connector of the EFHW before hoisting up in the air so the coax is not in the system on these measurements. I was very pleased with these results.
John KG6ZBN’s 1:49 UnUn ($10 + shipping) EFHW As Built SWR Sweep of EFHW using 133′ #26 Silky Wire. 17′ Counterpoise
So how did our first POTA activation go in an otherwise ideal Saturday for doing some amateur radio? Not bad. Not bad at all. I posted our activation on both the POTA.app and on the Parks on the Air Slack Channel. Some tweeted that they tried to reach me on SSB while I was using the IC-705 at 10 watts. Most were a no-go except the one SSB contact from Arizona giving us a “true” 599 report. We had 59 contacts in all, but dropped one due to a busted call sign. The map below shows the range by mode. SSB is green, CW is red, and FT8 is yellow.
Mike K5XU’s 30 watts on CW worked very well as he is a master operator in that mode. Catching Alaska and Puerto Rico on 30 watts was not surprising. Mike N5DU’s FT8 power was 10 watts (5 watts for the first two). Working Guatamala and Sardinia on 10 watts using an EFHW was nice. N5DU added his DX Engineering Bandpass Filter box which significantly reduced interference between his FT8 rig and my SSB rig sitting just a few feet apart. My poor SSB showing, except for the one QRP contact out to AZ in their State QSO Party, was not to be unexpected. Nonetheless, as my friends Scott K0MD and Thomas K4SWL told me, my first deployment of the IC-705 was better than imagined in terms of how the rig operates and the features it contains. I did connect it the day before to my amateur radio laptop (Thinkpad 420s) on my patio via USB and tested a 1:9 EFHW strung head-high between two bushes in my garden. This is the very first rig that has connected immediately to WSJTX after two settings: rig selection of the 705 in the software and pressing the on-screen menu button for FT8 Preset on the 705. I immediately began receiving and decoding FT8 signals! One contact convinced me that I had that mode in the bag on the 705. Well done, Icom!
Lunch was served at my house a couple of miles away after our noon shutdown. Fried catfish from nearby Cock of the Walk restaurant, hush puppies, corn bread, fried onion rings and pickles were the main course. To finish off our meal, apple pie or brownie a la mode with chocolate peanut clusters were served. We dined on our screened porch with a breeze off of the Barnett Reservoir flowing through the solar shades. While not the healthiest diet, and one we do not eat often, a good time practicing this aspect of our hobby was had by all. We plan to continue POTA activation’s, and perhaps the one SOTA entity in the State, in the future. Having a group of ham radio friends like this makes the hobby most pleasurable. Now, I need to get that log submitted to my POTA manager!
A VISUAL + AUDIO AIR CHECK OF DIGITAL MODE FT8 QSOs, ON THE 30-METER BAND
Here is a video capture of the reception and transmission of many digital FT8-mode amateur radio high-frequency (HF; Shortwave) communication signals. This video is a front-seat view of the software operation performed at the radio room of amateur radio operator, NW7US, Tomas Hood.
The software packages demonstrated are installed and operational on a modern personal computer. The computer is connected to an Icom IC-7610 radio transceiver, controlled by the software. While there is no narration in the video, the video provides an opportunity for you to see first-hand how typical FT8 operations are performed. The signals can be heard.
The frequency used for the FT8 communication in this video is on or about 10.136 MHz, in the 30-Meter shortwave amateur radio allocation (or, band). As can be seen, the 30-Meter band was active at this time of day (0720 UTC, onward–local nighttime).
In this video you see (and hear) NW7US make two-way contacts, or QSOs, with stations from around the country and the world.
There are amateur radio operators within the amateur radio community who regard the FT8 digital mode (FT8 stands for “Franke-Taylor design, 8-FSK modulation“, and refers to the mode created by Joe Taylor, K1JT and Steve Franke, K9AN) as robotic (automatic, automated, and unattended) computer-to-computer communications, and not ‘true’ human communications–thus negating the spirit of ham radio. In other words, FT8, in their opinion, is not real amateur radio. While they pontificate about supposed automated computer communications, many of those holding this position have not installed and configured the software, nor tried communicating with the FT8 digital mode. They have perhaps formed their anti-FT8 opinion in a vacuum of knowledge. (This writer has other issues with FT8, but not on this point–see below)
As you watch the video linked in this article, consider these concepts:
+ A QSO is defined (as per common knowledge–see below) as the exchange of at least the minimum information needed as set by the requirements of a particular award, or, as is defined by law–for instance, a QSO would have at least an exchange of the legal call sign assigned to the radio station and/or control operator, the location of the station making the transmission, and a signal report of some kind about the signal received from the other transmitter at the other end of the QSO.
+ Just how much human involvement is required to make a full FT8 QSO? Does WSJT-X software run all by itself, with no human control? Is WSJT-X a robot, in the sense that it picks a frequency, then initiates or answers a CQ call automatically, or is it just powerful digital-mode software that still requires human control?
The video was captured from the screen of the PC running the following software packages interacting together as a system:
+ WSJT-X: The primary software featuring the digital mode, FT8. (See below for some background on WSJT-X software.)
+ JTAlert: Provides several audio and visual alert types based on decoded Callsigns within WSJT-X.
+ Log4OM, Version 2: A full-featured logging program, which integrates well with WSJT-X and JTAlert.
+ Win4IcomSuite: A full-featured radio controlling program which can remote control rigs, and provide control through virtual communication port-sharing.
+ Com0Com: The Null-modem emulator allows you to create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another. Each COM port pair provides two COM ports. The output to one port is the input from other port and vice versa.
As mentioned, above, the radio used for the communication of FT8 at the station, NW7US, is an Icom IC-7610 transceiver. The antenna is an off-center fed dipole that is over 200 feet in total length (end-to-end measurement).
WSJT-X is a computer program used for weak-signal radio communication between amateur radio operators, or used by Shortwave Radio Listeners (SWLers; SWL) interested in monitoring the FT8 digital communications between amateur radio operators. The program was initially written by Joe Taylor, K1JT with Steve Franke, K9AN, but is now open source and is developed by a small team. The digital signal processing techniques in WSJT-X make it substantially easier for amateur radio operators to employ esoteric propagation modes, such as high-speed meteor scatter and moonbounce.
WSJT-X implements communication protocols or “modes” called FST4, FST4W, FT4, FT8, JT4, JT9, JT65, Q65, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions. JT4, JT9, and JT65 use nearly identical message structure and source encoding (the efficient compression of standard messages used for minimal QSOs). They use timed 60-second Transmit/Rreceive (T/R) sequences synchronized with UTC (Universal Time, Coordinated). JT4 and JT65 were designed for Earth-Moon-Earth communications (EME, or, moonbounce) on the Very-High Frequency (VHF), Ultra-High Frequency (UHF) and microwave bands. JT9 is optimized for the Medium-Frequency (MF) and High-Frequency (HF) bands. It is about 2 dB more sensitive than JT65 while using less than 10% of the bandwidth. Q65 offers submodes with a wide range of T/R sequence lengths and tone spacings.FT4 and FT8 are operationally similar but use T/R cycles only 7.5 and 15 seconds long, respectively. MSK144 is designed for Meteor Scatter on the VHF bands. These modes offer enhanced message formats with support for nonstandard call signs and some popular contests. (The MSK in MSK144 stands for, Multiple Frequency Shift Keying.)
FST4 and FST4W are designed particularly for the Low-Frequency (LF) and MF bands. On these bands, their fundamental sensitivities are better than other WSJT-X modes with the same sequence lengths, approaching the theoretical limits for their rates of information throughput. FST4 is optimized for two-way QSOs, while FST4W is for quasi-beacon transmissions of WSPR-style messages. FST4 and FST4W do not require the strict, independent time synchronization and phase locking of modes like EbNaut.
As described more fully on its own page, WSPR mode implements a protocol designed for probing potential propagation paths with low-power transmissions. WSPR is fully implemented within WSJT-X, including programmable band-hopping.
What is a QSO?
Under the title, CONTACTS, at the Sierra Foothills Amateur Radio Club’s 2014 Technician Class webpage, https://www.hsdivers.com/Ham/Mod15.html, they teach,
An amateur radio contact (called a QSO), is an exchange of info between two amateur radio stations. The exchange usually consists of an initial call (CQ = call to all stations). Then, a response from another amateur radio operator, and usually at least a signal report.
Contacts can be limited to just a minimal exchange of call signs & signal reports generally between amateurs previously unknown to each other. Very short contacts are usually done only during contests while longer, extended ‘rag chews’ may be between newly met friends with some common interest or someone you have known for a long time.
Wikipedia has an entry for QSO, too.
My Issue With FT8 and WSJT-X
I have written in the past, on this website, about an issue that came about during the course of the development of the WSJT-X software package. The development team decided to widen the slice of ‘default’ (pre-programmed) frequencies on which to operate FT8. The issue was how the choice of new frequencies was made, and what choices were implemented in an upcoming software release. Read more about all of this, in these three articles:
Has this issue been resolved? For now, yes. There appears to be more coordination between interested groups, and the proposed new frequencies were removed from the software defaults in WSJT-X. At least, up to this point, at the time of publishing this article.
May 1st, 2010 – WGØAT/Steve sent a CQ from Mount Herman in Colorado and thus inaugurated the birth of Summits On The Air (SOTA) in WØ land with 33 CW contacts around the world.
Fast forward to today, Steve is still sending CQs from Mount Herman (WØC/FR-Ø63), and other peaks, almost on a daily basis but he also inspired countless hams (incl. yours truly) to join a growing bunch of people who love the outdoors and combine their hiking activities with their radio hobby.
Some statistics… during the last 10+ years the Colorado Association (WØC) grew from:
- 219 initial (seed) summits to a total of 1797 qualifying summits
- a handful of Activators to ~180
- a few chasers to almost 200
These highly motivated men and women of all ages activated more than 7,400 summits, generated more than 40,000 points and 15 Mountain Goats (MG) – many of them double or even six-fold (thanks KXØR/George).
WØC Chasers worked over 90,000 stations around the world, generated almost 500,000 points and 33 Shack-Sloths.
To celebrate our 10th Anniversary1, WØC-SOTA is organizing a 10-10-10 Event2 with a challenge for Activators and Chasers alike.
Activator challenge: Activate 10 (or more) 10K (or higher) summits (in WØC) within 10 days.
Chaser challenge: Chase Activators on 10 different (or more) qualifying WØC summits (10K or higher) within the 10 days.
Event Date: We will kick-off the event in conjunction with the Colorado 14er event on August 7th, 2021 and conclude on August 16th.
Everybody is invited to participate. Plan your vacations and business-trips to Colorado accordingly. Block off these days in your calendar. Get in shape… repair your antennas and radios. It’s a once in a decade event 😉
There will be a ranking of all participants who meet the challenge. Photographer and new SOTA enthusiast Dan Oldfield (NØOLD) is generously donating a personalized and autographed print from his Colorful Colorado collection to each of the top 3 in both challenges.
For the org. team
1 It’s actually the 11th Anniversary but the COVID-19 Pandemic and historic Wildfires in Colorado interfered in 2020.
2 All SOTA rules apply
This article is part two of the series taking a look at band plans and gentlemen agreements.
See part one, here: Land (er, FREQUENCY) Grab. See part three, here: In Response — Can’t We All Just Get Along?
Displaced and Marginalized
There are some unhappy amateur radio operators in the world of shortwave operations. Users of Morse code, and digital modes other than the highly-popular modes engineered by Joe Taylor, K1JT, feel displaced on the many amateur radio bands where Joe’s wildly-popular mode FT8 has erupted.
Joe (born March 29, 1941), is a friend of hams everywhere, and is an American astrophysicist and Nobel Prize in Physics laureate (https://g.nw7us.us/2Ptquv1) for his discovery with Russell Alan Hulse of a “new type of pulsar, a discovery that has opened up new possibilities for the study of gravitation.”
Many have asked questions like, “Did Joe Taylor K1JT Destroy Amateur Radio? Did Joe Taylor K1JT, Nobel Laureate and noted friend of hams everywhere, accidentally destroy amateur radio?” This question remains relevant, even as more and more FT8 operators take to the HF bands to chase wallpaper and awards.
FT8 Has Validity and Usefulness
Full disclosure: I administer a Facebook group for FT8 and FT8-related modes, because I believe that the mode has a valid place in our amateur radio technology portfolio. Here is the Facebook group URL, if you would like to join the fun: https://www.facebook.com/groups/FT8.FT4.HF.6m/. Understand, I have used and will continue to use FT8.
Because it has a place, it stands to reason that everyone should become more aware of the impact of using FT8 on the bands. It also stands to reason that it should be used ethically, and in the best spirit of amateur radio.
Many amateur operators use the FT8 digital mode as a novelty when there isn’t much else happening on amateur radio shortwave bands. One of the great things about it is that you can tell when a band is open–even though you don’t hear any other signals of other modes on the band in question, you very well may hear the roar of FT8 on the band where propagation actually exists to somewhere else than your QTH.
Others use it to finally get their DXCC, or WAS, or other award and wallpaper. This is especially popular during this season of the sunspot cycle where there are no sunspots–propagation is limited to lower-HF amateur bands because there’s just not enough solar activity to energize the ionosphere enough to open up the higher segment of shortwave.
FT8 Has Limitations
Can FT8 be used for two-way conversations? No. However, the JS8CALL digital mode is designed from the FT8 mode, by changing the protocol in a way that allows free text. It is designed for ragchewing and the new version 2.0 offers three modes of chat with 50 Hz and 16 wpm, 80 Hz and 24 wpm, and the turbo mode at 160hz and 40wpm with turbo only having a 6-second turn around time. The designated frequency is 7.078, which many find much nicer to use.
However, many find JS8CALL combersome, and non-intuitive. How fast and how reliably can it handle critical messages, say, during an emergency? I’m sure the software will improve, but how good is the protocol?
A mode such as Olivia has been field proven, and time tested. It can reliably handle traffic.
During the early days of widespread FT8 operation that came with the first public non-Beta release of FT8-equipped WSJT-X software, I tried to reason with the FT8 development leadership team. I made a polite attempt at explaining how incredibly rude they were in purposefully programming into the software the default operating frequencies such as 7.075, 14.075, and so on.
One of the main leaders of that team slammed me and stated that “we only suggested those frequencies; the operator is free to change them.” Additionally, he stated that the team used a common QSO/Mode spotting website to see what digital modes or other operations (like CW) were sparser. They perceived that the frequencies they proposed where no longer active because they saw few if any spots. They thought that no one would care.
I explained that a single website-spotting strategy was illogical and very lazy. This is true for several reasons, at least.
I guess you have to have a Ph.D. to know better than any average ham who went by gentleman’s agreements. I have an extremely dim view of JT and his disciples. CW is not the only operating group he’s engineered out of traditional slices of spectrum. Olivia, and other modes, now have been pushed down into PSK subbands, and everyone is feeling the crowding. As far as my thinking of FT8, well, it is radio, but it doesn’t foster goodwill and building serious communications skill. IMHO.
Play Nice, Be Positive and Polite. Smile.
I’ve received wise counsel from a number of fellow amateur radio operators. They implore us to not promote hostility between “us and them.” That even though the WSJT team is playing the playground bully, we should not be vengeful, but polite and willing to negotiate in good faith.
If we don’t play nice with the bully then the bully won’t play with us. And, the general public will side with the bully because the bully has the nice toys…
Good negotiations, though, take a willingness by both sides, so that conversation evolves, resulting in positive, cooperative actions embraced by both parties. There are other amateur radio operators who have made attempts to open up talks with Joe and crew. What are the results, so far?
We can hope that Joe Taylor and his group of developers and leadership take a proactive role and join a conversation that is with a wider group of amateurs than just the WSJT enthusiasts. We hope that they will play fairly, and cooperatively, with the rest of the amateur radio community.
Tomas Hood, NW7US, is a regular contributor to AmateurRadio.com and writes from Nebraska, USA. Tomas is the Space Weather and Radio Propagation Contributing Editor to ‘CQ Amateur Radio Magazine’, and ‘The Spectrum Monitor’ magazine.
This article is part one in a multi-part series. Part 2 is located here: One Aspect of Amateur Radio: Good Will Ambassadors to the World. Part 3 is located here: In Response — Can’t We All Just Get Along?
We’ve all heard it at least once: no one owns a frequency.
By law, amateurs must keep the transmissions from their station within the bounds of the allocations granted to license-holding operators–within these bands that are allocated for amateur radio use. Amateurs are expected to follow band-plans, which guide us to which mode can be used in a band.
Subbands — Band Plans
There are many decades of constant refining of the standard operating procedures–perhaps we can call them, traditions–that, for the most part, work out pretty well for most amateur radio operations on our precious allocations in the radio spectrum. Each band–a slice of radio spectrum between a lower frequency and a higher frequency–is made up of subbands. These subbands are slices within a specific band (allocation), in which amateurs participate in two-way communications by using a particular mode of transmission, like single side band or CW.
For instance, Morse code enthusiasts use CW (continuous-wave modulation, i.e., A1A) between 14.000 MHz and 14.150, which is the subband that exists in the larger allocations known as the 20-Meter Band. The 20-Meter Band is 14.000 MHz to 14.350 MHz, and the regulating bodies (such as the FCC in the USA) have directed through law that voice modes cannot be used between those subband frequencies from 14.00 MHz to 14.15 MHz. Voice modes can be used from 14.15 MHz up to 14.35 MHz, with certain license class variations. Read the PDF from the FCC: FCC ONLINE TABLE OF FREQUENCY ALLOCATIONS
CW is not the only mode allowed in the 14.00-MHz-to-14.15-MHz subband. The regulations stipulate that a number of data modes can be used in this subband. There are specific requirements that a mode must meet, in order to comply with regulations–these are known as the authorized emission types.
Amateur radio operators, decades ago, began discussing, then agreeing to, agreements between all operators as to where specific modes can be used, so those operating the different modes do not trample on each other’s transmissions. These agreements are known as our band-plan gentlemen’s agreements. They exist to help minimize interference–QRM–and to help foster good operating procedures between the different groups.
The band plans that have evolved through the decades are not regulations, and do not mean that any particular group of amateur radio operators own any frequency or subband. A mode does not own a particular subband. Amateur radio operators are not encouraged to start transmitting a mode that is typically found in that subband, if someone else is on that frequency using a mode not expected.
Just because some other operator is using the subband for a mode not in compliance with the gentlemen’s agreement, don’t purposefully try to eject that operator. At the same time, the gentlemen’s agreements exist to help amateurs avoid interference with others that are using different modes. Thus, the operator who has chosen to use a non-standard mode for a subband known to be used for some other mode should move that operation to the subband identified to be for that operator’s current mode of transmitter emissions. In other words, do not QRM another amateur radio operator, and do not cause confusion and frustration by barging into a subband for a mode that you are not intending to use. Use the mode expected in the subband of your current operations.
This concept is especially helpful when we consider weak-signal operations. If a very strong, loud teletype transmission begins in a subband that is set aside for weak-signal propagation modes like WSPR, then it defeats the efforts of the operators making the attempt to have successful weak-signal two-way communications. Thus, the teletype transmission should be made in a subband where teletype operation is expected and acceptable. And, WSPR should stay in the subband where people expect to find WSPR signals.
This concept is also applied to VHF or higher bands. Why? If repeaters are parked on known repeater subbands, then weak-signal single-sideband communications can take place in a subband where repeaters are not allowed. By allowed, though, I mean, by agreement with gentlemen’s agreements. Regulators have stayed out of the amateur radio operations except by creating regulations at a high-level–for instance, the FCC stipulating that voice communications are not allowed between 14.000 MHz and 14.150 MHz, in the 20-Meter band.
The Frequency Grabs by the WSJT Developers, Planners, and Leadership
With several current release candidates of the WSJT-X software by Joe Taylor, the group of developers and leadership have programmed into the WSJT-X software a set of NEW default frequencies. These new frequencies are in addition to their current pre-programmed frequencies that the amateur community now identifies as, The FT8 Subbands.
The new proposed frequencies are right on top of other subbands where other modes have been operating for decades (such as PSK and Olivia, and many others). There was no community discussion, except within the WSJT community. And, when someone protested the take-over of other well-established subbands, those protests were shot down. The stated reasons included, “Well, those other modes are not very active or popular, because spots are not showing up on various spotting networks.” Such reasons break down on deeper consideration–for instance, most spotting networks are not programmed to automatically identify Olivia transmissions. CW, PSK, and FT8 are programmed into scanners, but other modes are ignored.
This behavior, considered rude, arrogant, presumptuous, and anti-gentlemanly (referring to well-established gentlemen’s agreements) has happened before, with the initial release of FT8. They (the WSJT-X developers and leadership) simply picked a frequency slice of each subband, without true collaboration with the wider amateur radio community.
When this columnist and fellow amateur radio community member, attempted a discussion, the retort from an official representative was an absolute dismissal of any protest against the choice and method of frequency options within the WSJT software. While the software marks these frequency as suggestions, only, these defaults are used without question by the operators of said software. And, the mode is so fast that there’s no human way of truly monitoring the frequency before use, to see if some other mode is in operation. Besides, weak-signals that are present but cannot be heard by one’s ear, might well be in operation. Subbands exist to keep QRM from covering up the weak signals of the mode expected at that frequency.
Enter the IARU…
The IARU has decided to step in and join the discussion. “The International Amateur Radio Union has been the worldwide voice of radio amateurs, securing and safeguarding the amateur radio spectrum since 1925.” The IARU guides regulating bodies like the FCC, regarding the administration and rule-making pertaining to amateur radio.
The IARU states, on their website,
The radio spectrum is a priceless natural resource. Because radio waves do not respect borders, the use of the spectrum must be regulated internationally. This is accomplished through the International Telecommunication Union (ITU), a specialized agency of the United Nations. Through World Radiocommunication Conferences (WRCs) held approximately every four years the ITU revises the international Radio Regulations which have the force and effect of a treaty. The Radio Regulations allocate the spectrum to different radiocommunication services such as broadcasting, mobile, radar, and radionavigation (GPS). The most recent WRC was held in October-November 2019. The next one is not yet scheduled but is expected to be held in 2023, so it is usually referred to as WRC-23.
New uses of the spectrum are being developed every day. This puts enormous pressure on incumbent users who are called upon to share their spectrum access with new arrivals. The allocation process is extremely complex, especially when satellite services are involved.
Reportedly, from first-hand communication from one IARU representative,
WSJT-X RC3 has 14074 kHz again for FT8. IARU is intervening. Stay tuned. I am asking for further suggestions.
73 Tom DF5JL
IARU R1 HF Manager
This is very welcomed news!
What ought to take place, as quickly as possible, is to rally the different interested parties, like the Olivia group, the PSK groups, the various CW groups like CWOps, FISTS, and the SKCC, and many others, for ideas and suggestions. A discussion must take place in the hope that new gentlemen’s agreements can be made, that include the FT8 and FT4 operations, without stepping on the subbands of other digital modes.
As Tom says, STAY TUNED.
If you have suggestions, please comment. This columnist will summarize the main ideas of the comments and forward them to Tom. You may also contact the IARU managers and let them know your suggestions.
Discussions in the Olivia community are ongoing, too. Join in at OliviaDigitalMode.net even if you are not yet an Olivia operator.
If you use FT8 and FT4, voice your concerns and ideas, too. Open dialog, without declaring war, is welcomed and hopefully will prove productive.
This article is the first in a series focusing on band plans, and gentlemen’s agreements. Please stay tuned for more installments.
Tomas Hood, NW7US, is a regular contributor to AmateurRadio.com and writes from Nebraska, USA. Tomas is the Space Weather and Radio Propagation Contributing Editor to ‘CQ Amateur Radio Magazine’, and ‘The Spectrum Monitor’ magazine.
I've been keeping an eye on the long range weather forecast via WeatherUnderground for this coming Saturday - FYBO day.
A couple of days ago, they were calling for a wet weekend. This morning, they were calling for an ice storm in the morning with some showers in the afternoon after a warm up.
NOW it's supposed to be "just" a cloudy day with just a chance of showers. Meanwhile, last night on the news, the local weather prognosticator was calling for a possible Nor'Easter this weekend. It's enough to make your head spin!
OK, so maybe I'm an Amateur Radio and QRP nerd, but what is more sublime than sitting somewhere in a nice shady spot on a hot summer day, making contact after contact with QRP friends around the USA and the rest of the world? The breeze in your face, the Bumblebees buzzing, the bands hooping with CW?
That's right ....... nothing!
This year, the last Sunday in July falls on July 29th and the contest runs from 1700 to 2100 UTC. So grab your radio, a hunka wire and make like a bee and get out to the field and pollinate those frequency bands! Get out of that musty ol' shack and enjoy the beautiful weather and sunshine. These are the things I dream about while I'm shoveling the pile of frozen over, rock hard slush that the snow plow leaves at the end of my driveway after every big snowfall.
For the rules, please go to http://arsqrp.blogspot.com/
For the roster, please go to https://docs.google.com/spreadsheets/d/1OzR8FvgVX9J2U0BsjPPg7uzqbuv4C93IAmf7hr8_5GY/edit#gid=0
72 de Larry W2LJ - Bumblebee # 12
QRP - When you care to send the very least!