Author Archive
Signal Butte (W0C/FR-165): SOTA Activation

Signal Butte (W0C/FR-165) is a popular Summits On The Air (SOTA) summit about 8 miles north of Florrisant, Colorado. Joyce/K0JJW and I had this one on our SOTA list for a while now and finally got around to activating it. At an elevation of only 9459 feet, it is not a big mountain but it provides a spectacular 360 degree view of the surrounding area. Signal Butte is within the Hayman Wildfire burn area from June 2002 and you can still clearly see the effects of that fire.

To get to the trailhead, consult the USFS Pike National Forest Map. Drive to the trailhead using FS 362, then turning onto FS 362A which leads to a well-used parking area. These roads are easy-peasy 4WD and high-clearance 2WD is probably sufficient.

The well-constructed trail is only a half mile long and 540 feet vertical, with many tight switchbacks and rock steps. I’d call this a good visitor hike because it will get most people huffing and puffing so they feel like they really did some climbing but then reward them with outstanding views on top.

On the Air
We both operated mostly on 2m FM (146.52 MHz) with the Yaesu FT-90 cranking out 30W into an 3-element yagi antenna. The best DX for the day was Dave/N0KM about 107 miles away in the San Luis valley (DM67vr). Note that our signals had to find their way across several mountain ranges for us to make contact. Who says VHF is only line of sight?
Steve/WG0AT showed up on Mount Herman (W0C/FR-063) for a summit-to-summit SOTA QSO. Then later, Doug/KD5OUG called us from the summit of Mount Evans (W0C/FR-003) for another summit-to-summit contact. Apparently Doug was just playing tourist and decided to pull out his 2m HT and give a call. Thanks to these stations that contacted us: K0LJW, W0RW, WG0AT, KC0PBR, K0MGL, KD0MRC, N0KM, N0EMU, KD0VHD, K0PV, K0PWO, W0BV, WB0TGE, K0GPA, K0TPC, WZ0N, KD0OUG

As you can see from the photos, the weather was excellent so we really enjoyed being on this summit. We both really enjoyed this summit and we will probably be back. This one is highly recommended because of the easy access, reasonable difficulty, established trail and excellent radio and optical horizons.
73, Bob K0NR
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Colorado 14er Event (2018)
August 4 & 5, 2018
Saturday and Sunday
www.ham14er.org
Amateur Radio operators from around Colorado will be climbing many of Colorado’s 14,000-foot mountains and Summits On The Air (SOTA) peaks to set up amateur radio stations in an effort to communicate with other radio amateurs across the state and around the world. Join in on the fun during the 27th annual event and see how many of the mountaintop stations you can contact. The covers the entire weekend but many mountaintop activators will hit the trail early with the goal of being off the summits by noon due to lightning safety concerns.
Now including Summits On the Air (SOTA), which adds over 1700 potential summits! If you aren’t up to climbing a 14er, there are many other summits to choose from (with a wide range of difficulty). See the Colorado SOTA web page at w0c-sota.org
Radio operators who plan to activate a summit should post their intent on the ham14er Yahoo Group. To subscribe to the “ham14er” email list, visit the Yahoo groups site at http://groups.yahoo.com/group/ham14er/ . Also, be sure to check out the event information at http://www.ham14er.org It is also a great idea to post an ALERT on the SOTAwatch.org website.
Frequencies used during the event
Activity can occur on any amateur band including HF and VHF. The 2m fm band plan uses a “primary frequency and move up” approach. The 2m fm primary frequency is 147.42 MHz. At the beginning of the event, operators should try calling on 147.42 MHz. As activity increases on that frequency, move on up the band using the 30 kHz steps. Don’t just hang out on 147.42 MHz…move up! The next standard simplex frequency up from 147.42 MHz is 147.45 MHz, followed by 147.48 and 147.51 MHz.
Frequency (MHz) | Comments | Frequency (MHz) | Comments |
147.42 | Primary 2m FM Frequency, then up in 30 kHz steps | 7.032 | 40m CW Frequency |
147.45 | Alternate 2m FM frequency | 7.185 | 40m SSB Frequency |
147.48 | Alternate 2m FM frequency | 10.110 | 30m CW Frequency |
147.51 | Alternate 2m FM frequency | 14.060 | 20m CW Frequency |
446.000 | Primary 70 cm FM frequency | 14.345 | 20m SSB Frequency |
446.025 | Alternate 70 cm FM frequency | 18.092 | 17m CW Frequency |
1294.50 | Primary 23cm FM frequency | 18.158 | 17m SSB Frequency |
144.200 | 2m SSB calling frequency | 21.060 | 15m CW Frequency |
50.125 | 6m SSB calling frequency | 21.330 | 15m SSB Frequency |
28.060 | 10m CW Frequency | ||
Other Bands/Modes | Standard calling frequencies and/or band plans apply. | 28.350 | 10m SSB Frequency |
Warning: Climbing mountains is inherently a dangerous activity.
Do not attempt this without proper training, equipment and preparation.
More operating information here: www.ham14er.org
Sponsored by The Colorado 14er Event Task Force
Download: Colorado 14er Event Flyer 2018
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Deputy Fife: Radio Operator
Some of my ham radio habits are focused on operating mobile.
Some of this probably came from watching the Andy Griffith show when I was a kid.
Deputy Fife is a great role model.
Click here to watch the video.
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FT8 Adoption: The New Cool Thing
The new cool digital mode for amateur radio is FT8, made possible by Joe Taylor/K1JT and the WSJT software. At first, FT8 seemed like just the next digital mode to try but it is turning out to have a bigger impact than that. Jeff/KE9V recently posted about the popularity of FT8 here:
FT8 is so far out in front that other digital modes are a foregone conclusion. CW only remains relevant because of its popularity in contests. Even phone, the Holy Grail of wannabe HF operators everywhere, is a nearly forgotten mode compared to FT8.
This reminded me of some of the classic research on adoption of new innovations. What are the factors that cause a new thing to really take off versus languish on the shelf? How do these apply to the quick adoption of FT8?
Diffusion of Innovations
In Diffusion of Innovations, E. M. Rogers lists five factors will influence how quickly a new innovation gets adopted:
Relative Advantage: The degree to which the innovation is superior to ideas it supersedes.
If an innovation is clearly superior to the present way of doing things, people will be more likely to adopt it without too much concern about its usefulness. If it’s not clearly better, people will tend to question whether it is worth the trouble of changing.
Compatibility: The degree to which the innovation is consistent with existing values, past experiences, and the needs of the user.
If an innovation is similar to existing practice and blends in well with user needs and expectations it is more likely to be adopted. If it requires change on the part of the user or represents an inconsistency with the user’s past experience, it may be rejected.
Complexity: The degree to which the innovation is relatively difficult to understand and use.
The more complex something is, the more likely people will reject it because “it’s just too much trouble.” Understandable ideas will tend to be considered more carefully and are more likely to be adopted.
Trialability: The degree to which an innovation may be tried on a limited basis (in other words, without committing to full-scale, total operational change.)
The easier it is for an individual or organization to try something out without being fully committed, the more likely they will give a new innovation a try. If the innovation can only be tried with full-scale change and great expense, it will tend to get rejected.
Observability: The degree to which the results from the use of an innovation are visible and easily communicated to users and other decision-makers.
If the results of an innovation are difficult to measure or see, rejection is more likely. If the results are clearly visible, then the adopting individual or organization can more easily correlate the results to the innovation. Generally, a decision-maker wants to be sure that the intended results can be measured, otherwise how can the innovation be evaluated?
Adoption of FT8
It is very clear that FT8 has a strong relative advantage to other modes. Just listen to the many comments from hams like “the band conditions are really bad but I’m still making contacts.” One could argue that FT8 is not that compatible with existing operating habits (think CW or SSB) but the mega-trend of using “sound card modes” is a huge enabler. For some time now, hams have been using the PC platform as a digital signal processing engine, using the sound card to handle the analog-to-digital conversion (and back). Perhaps this traces back to PSK31 as one of the major forces that caused hams to connect their transceivers to their computer. In that sense, FT8 is very compatible with existing sound-card-enabled stations, making it strong on compatibility and trialability. Just load up the WSJT-X software and give it a try. Of course, observability is strong too…now I’m making QSOs when I wasn’t before.
There is a bit of a learning curve with FT8, which could be a barrier to adoption. You need to learn the software and fiddle around with the settings to make it work. But for many hams, this is not a barrier but a fun challenge to take on. Most of us like to try new things, as long as they aren’t too frustrating.
The final point I’ll make is that the popularity of FT8 reinforces my contention that Ham Radio Is Not For Talking. FT8 is all about making a radio contact and does not enable conversations. Sure, most hams like to talk (usually about radios) but when the bands are poor they like making radio contacts via FT8. Making QSOs is king.
Those are my thoughts. What do you think?
73, Bob K0NR
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Things On The Air (TOTA) Launched
The Sundance Mountain Radio Association (Palmer Lake, CO) today announced the creation of the Things On The Air (TOTA) program. The radio association’s Need More Lists Committee spent the past year analyzing the effect of various “on the air” programs, including the Islands On The Air (IOTA), National Parks On The Air (NPOTA) and Summits On The Air (SOTA).
The overall trend is clear. The ham radio community used to be satisfied with the basic DXCC list (a list of countries that aren’t really countries so we have to call them entities). But over time, additional lists to be worked have been created. For example, the Islands On The Air (IOTA) was created in 1964. More recently, the Summits On The Air program was established in 2002. It seems that every year or so we hear of another “something” on the air program. Even the normally docile satellite grid chasers created a Walmart Parking Lots On The Air (WMPLOTA) event.
Unfortunately, this has created a miss-mash of programs with inconsistent and conflicting rules. The Need More Lists Committee concluded that the best solution to this problem is to fast-forward to the likely end state: pretty much everything can be put on the air. Inspired by the latest technical hype called Internet Of Things (IoT), the committee named this program Things On The Air (TOTA).
To be comprehensive and inclusive, the TOTA program is based on the existing Maidenhead Grid system. There are 324 fields defined (AA through RR), each having 100 squares (although they really are not square). Each square contains 576 subsquares indicated by aa through xx. So using the six-character locator results in 324 x 100 x 576 = 18,662,400 unique locators. Or, as the Committee likes to say, about 18 million locators. In North America, the six-character locator represents a rectangle about 3 miles by 4 miles. This raises the question of how many things need to be on the list inside a typical 3 x 4 mile rectangle. An in-depth study revealed there are a lot of things that might need to be listed in even a small area.
For TOTA to achieve the vision of being the “last list of things on the air”, it must accommodate an unlimited number of listed things. To start out a 15-digit serial number is appended to the 6-character locator to indicate a TOTA thing. As the program grows and new Things are added to the list, the 15-digit number can be extended indefinitely.
Here’s an example listing of some of the first TOTA designators:
Locator Serial Number Description DM79nb 000000000000001 Walmart Parking Lot DM79nb 000000000000002 Home Depot Parking Lot DM79nc 000000000000001 Leroy's home QTH DM79nc 000000000000002 Leroy's barn DM79nc 000000000000003 The big tree behind Leroy's house DM79db 000000000000001 Charlie's home QTH DM78lu 000000000000001 Pikes Peak Summit DN70di 000000000000001 Rocky Mountain National Park
When making a valid TOTA contact, the activating station must give a signal report and the TOTA designator: 6-character locator followed by the serial number (at least 15 digits but may be longer). The official TOTA list is currently be maintained on an Excel spreadsheet on Leroy’s computer but a HDFS database is under construction to handle the expected large dataset.
The Committee requests the help of all amateur around the world to submit additional entries into the TOTA list. Eventually, this process will be automated via the ThingsOnTheAir.com web site but for now submissions can be made in the comments field below.
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VHF SOTA: Abajo Peak (W7U/SU-014)
While on a canyon country hiking/Jeeping trip in Utah, Joyce/K0JJW and I decided to do a couple of Summits On The Air (SOTA) activations. Abajo Peak (W7U/SU-014) showed up as a suitable target, being an easy-access drive-up summit at 11,360 feet, just west of Monticello. While the forest service map shows this as a 4WD route, it turned out to be a well-maintained road that most 2WD vehicles can handle.

The map below shows the area. The only real challenge was finding B102 heading south/southwest out of Monticello. This later turns into route 0087, which swings south of another SOTA summit: South Peak (W7U/SJ-003) and up over Dickson Pass. (South Peak could be a second summit for a double activation.)
Abajo Peak is an excellent summit for VHF/UHF propagation with a good radio horizon in all directions. There is a substantial radio communications site on top which did create some local interference on 2m and 70cm. Moving a bit away from the actual summit caused the interference to mostly disappear.
I was concerned that we would not find enough activity on VHF in this rural location, so I put the word out to some of the hams in Utah and western Colorado with capable 2m SSB stations. Our equipment was a Yaesu FT-817 (all mode, 5W) driving a 3-element yagi antenna. We also had a 50W Yaesu FT-90 that can provide a bit more power out on 2m FM. And we had the usual collection of HTs.

Around noon, we started calling on 146.52 MHz and worked N7VWX in Nucla, CO (about 57 miles away). We switched over to 144.200 SSB and worked W0DSW in Cedaredge, CO (113 miles). Then we worked Bill/K0UK in Grand Junction (95 miles) on 144.200 SSB…not real strong but we made it. A bit later we came across KB7REB on 146.52 FM who said he was out hiking in a canyon and was surprised to hear anyone. We also worked KB7TRA on 146.52 (I think he was mobile east of us). We also worked W0DBB in Montrose, CO. I kept beaming to the west looking for W7DHH and I eventually heard him calling on 144.200 CW. I tried getting back to him but he was apparently not hearing me. N7KMK (same vicinity as W7DHH) came on the air and I was able to copy him on SSB. He also had trouble hearing me, but for a few seconds the signals came up a bit and we made the contact. N7KMK was my best DX for the day at 154 miles.
Four contacts are required to get the SOTA activation points and we probably would have been successful just randomly calling on 146.52 MHz FM. However, taking along the SSB transceiver and alerting the 2m weak-signal crowd certainly paid off with some longer distance QSOs. It is always a blast to be working over 100 miles on VHF QRP.
73, Bob K0NR
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Phone Contesting Tips For DX Contests (AE6Y)
Proper use of a phonetic alphabet can be very helpful when working phone under marginal conditions. I’ve written a basic article on phonetics over at HamRadioSchool.com, so you might want to review that. I recently came across an article by Andy/AE6Y on some tips and tricks to use during contests. He does a super job of explaining why the ITU phonetic alphabet isn’t always the best choice. I don’t usually reprint other author’s work on this blog but somehow this article really got my attention. Reprinted here with permission. – Bob K0NR
Phone Contesting Tips For DX Contests
Andy Faber, AE6Y
3/29/18
This article is prompted by the recent WPX SSB contest, in which I worked thousands of guys from Aruba as P49Y, which engendered much reflection (and teeth-gnashing, to be sure) about how U.S. hams can be best understood from the DX end. I’m not addressing this to relatively clear-channel domestic contests but to the situation where you are trying to get through to a DX station that may be hearing a pileup, plus noise, ear-splitting splatter from adjacent stations and all of the other sonic annoyances that make many contesters prefer CW. If there is no pileup and you know the DX station can hear you completely clearly, then you’ll get through regardless, but if not, here are some suggestions:
First, be sure you are calling on his exact frequency. In CW contests, it can be helpful to separate yourself from the pack by calling off frequency, but that’s not true in SSB. Off-frequency stations sound distorted and are hard to understand. The DX station may well come back to a weaker, but more intelligible station that is on frequency, even if you are louder. In order to work you, he has to figure out which way to adjust the RIT, and then go ahead and do it. A tired operator on the other end may just not bother, until he has worked everyone else.
Second, make sure your audio is clean. It is so much easier to understand clear audio, even if it is weaker than a louder, distorted signal. KH7XS mentioned in his 3830 posting that this year there particularly seemed to be over-processed signals coming from South America, and I noticed the same thing. It used to be that the Italians who were the worst offenders, but they seem to be better now. This weekend, the Cubans were particularly hard to understand. The prize for the easiest audio to understand goes each contest to the hams from the British Isles. The G’s, M’s and their derivatives invariably have very clean (and usually nicely treble) audio that can be understood even when the signal doesn’t budge the S-meter. On several occasions I chose a weak but clear Brit over a loud, but distorted, competitor.
Ok, so you have a clean signal and are calling on frequency, now how do you get the information through, both your callsign and your contact number (for WPX)?
Here are some tips:
If you are loud enough and have an easily recognizable call, you can skip phonetics. So this weekend, when K1AR called, he was easy to pick out, same for K3UA, K3ZO, N6AA, and a few others. But for most guys, and when in doubt, use phonetics. Endless bandwidth has been expended on the subject of phonetics, and people have differing opinions on the topic, but here are my thoughts from being on the DX end:
The first thing to understand is that the standard, “recommended” international alphabet works dismally in marginal conditions. The words are too short, and some don’t have unique sounds. Generally speaking, the one-syllable words just get lost, while the two syllable words are better, and the longer ones are even better.
Thus, one-syllable words like “Fox”, “Golf” and “Mike” are horrible. Some of the two-syllable ones are OK (e.g., “Hotel” and “Quebec”), but others, such as “Alpha” and “Delta”, or “X-ray” and “Echo”, “Kilo” and “Tango” sound very similar, so are easily confused. I worked a guy with the suffix XXE, and had to get a number of repeats until he finally said “X-Ray X-ray Ecuador,” which did the trick.
There are two basic cures for these problems. The first is only to use these crummy phonetics the first time as a trial. If the DX station asks for a repeat, say your call twice, once with the standard phonetics and once with different ones. Don’t just keep repeating your call the same way. Something in either the way you say it or the way the DX hears it is creating ambiguity. If you keep repeating the call the same way it may well be that part of it is just hard to decipher, and it may not get any easier.
If the DX station is a good English speaker then custom phonetics may work, such as “King George Six…” In fact when I thought a KK4 station was a K4, he used a very effective phonetic, “King Kong Four…” WA2JQK uses “Jack Queen King” in domestic contests, but that won’t work well for non-native speakers. The Wyoming station N7MZW uses “Many Zebras Walking” sometimes domestically, but I noticed he was using normal phonetics in WPX.
The second approach is to switch to the geographical phonetic alphabet. This features longer and more distinctive-sounding words, which are much easier to understand. For example if your suffix is, say, HLF, then you can say “Hotel Lima Fox,” then try “Honolulu London Florida.” When I give my call with last letter “Yankee” and get asked for a repeat it works much better to say “Last letter Yankee, last letter Yokohama.” Many of the geographic phonetics work particularly well for speakers of Romance languages like Spanish and Italian (e.g., terms like “Guatemala”, “Nicaragua”, and “Santiago”). There are a few letters for which there are not good geographic equivalents. Obviously, “X-ray” is one of them. For “Echo”, “England” is sometimes used, but “Ecuador” is better. Although “London” and “Lima” are both geographic terms, “London” is much better. And “Denmark Mexico” is many times superior to “Delta Mike.”
Numbers in the callsign can also cause trouble. What if the station comes back to “K3” instead of “K6”? In general, just try to repeat the number, but if he still doesn’t get it, you can try counting, e.g. “Kilo Six, 1, 2, 3, 4, 5, 6.” Or for us West Coasters, “Kilo Six in California, West Coast” can be useful.
Which brings me to the subject of numbers in exchanges like WPX. I commented in a 3830 post a few years ago that the English numbers that everyone uses are just too ambiguous, most of them being plain too short. I recommended using some Spanish numbers, like “cuatro” and “ocho”, but that suggestion went nowhere, so I hereby drop it, unless you are trying to get through to a native Spanish or Italian speaker. In fact, In WPX, I just couldn’t understand a number from a CO8 station with terrible audio. I kept asking, “your number 424?”, “your number 242?”, “your number 224”, etc. Normally, one doesn’t confuse “two” and “four,” but this guy’s audio was driving me crazy and I wasn’t sure how well he was understanding me either. Finally I had the presence of mind to ask in Spanish, and when he said “dos cuatro cuatro,” he was in the log. If he had said that in the beginning I would have understood him in spite of his maladjusted audio.
One source of confusion for the DX station is not knowing how many digits there are, particularly later in the contest when a number can have 1, 2, 3, or 4 digits. There are a couple of ways to help. For example: suppose the DX station thinks he hears “[garble] six six” and he asks: ”your number six six?” If your number is just 6, you can say to be helpful “Negative. My number zero zero six, number six.” Adding the word “number” in front of the digit indicates there are no missing digits. If your number is 66, just say “Roger, roger.” If it’s 56, say “Negative, number five six, fifty–six.” If it’s 256, say, “Negative. Number two five six, two fifty-six (or even “two hundred and fifty-six”). I know we were taught that it is incorrect to say “two hundred and fifty-six,” and we should just say “two hundred fifty-six,” but using the “and” makes it more intelligible.
In general, it’s usually best to say your number twice, in two different ways. For example it’s often hard to discern, “two three” from “three three”. So you can say: “five nine, two three, twenty-three,” since “twenty” and “thirty” sound very different. Similarly if your number is 15 and you say “one five”, that might be confused with “one nine”, so say “one five, fifteen.” If it’s late in the contest and you might be expected to have a three-digit number you can say “zero two three, only twenty-three”. And if you have a one digit number late in the contest, it’s best to add zeros, saying, e.g., “zero zero nine, number nine”, not just “nine.”
I hope these tips from the DX end are helpful. They should be even more useful in the next few years, as declining sunspots forcing us increasingly into the QRM alleys of 20 and 40 meters.
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