AmateurRadio.com

Closing out 2021, here are the top five blog posts at k0nr.com during the year. Some people may see this as a lazy way of creating one more blog post for the year without much work. This is definitely true. I hope you enjoy it anyway.

Leading the list is this blog post…a perennial favorite that seems to make the top five each year:

Getting Started on 2m SSB

This is another popular article that explains some of the details behind the 2-meter band plan. This particular article is tuned for Colorado but it also provides a link to an article that covers the topic for the USA.

Choose Your 2m Frequency Wisely

New this year, is the post about the North America Adventure Frequency, which was promoted by the ARRL Contest Update newsletter:

North America Adventure Frequency: 146.58 MHz

This post is my attempt at humor concerning the SOTA obsession of small transceivers:

The Truth About Tiny SOTA Transceivers

Once again, coming in at fifth place is one of my personal favorites that talks about proper kerchunking of repeaters. It even introduced a new Q-signal for kerchunking, although I must admit it may not be catching on.

Proper Kerchunking

Editors Choice

Just for good measure, I am including one more post that I think is notable. I wrote this one after looking around the web for a good explanation of what is a valid QSO? I never did find a good, up-to-date definition of a QSO, so I wrote one. This one may turn out to be an evergreen article but so far it has not gotten a lot of hits.

What Is a Valid QSO?

Merry Christmas and Happy New Year!

73 Bob K0NR

The post Top Five K0NR Blog Posts for 2021 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].

AmateurLogic.TV Episode 163 is now available for download.

Tommy completes the LiFePO4 battery build and begins load testing. Emile runs Multi-applications on his shack Pi. The Cheapmunks drop by for a high frequency Christmas. Canadian and Creole holiday Food tasting.

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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].

I’ve been interested in the idea of a microphone-centric radio and wrote about it here: How About a Mic-Centric Mobile Transceiver? Shortly thereafter, I discovered that QYT has introduced a VHF/UHF ham rig that has the display and controls in the microphone (Model KT-WP12).

You may want to watch the video by Tech Minds, which does a good job of introducing the radio.

I was very keen on trying this radio out, so I purchased one, paying about $110.

On the Bench

First, I did some bench tests to check the basic performance of the radio. The receiver sensitivity, transmit frequency and FM deviation all looked very good. The one specification that was disappointing was the RF power output. On the 2m band, the output power was 20.6 W, while the 70cm band was 15 W. The specification for the radio is 25 W. The power was measured using an HP 8920A RF Communications Test

I’ve noticed this on other radios from Chinese manufacturers: the basic specs of the radio check out, except the RF power level is low.

User Interface

As you might expect, cramming all of the controls into the microphone is a challenging user interface design. I spend quite a bit of time playing with the radio at home before actually using it on the air. Overall, I found the user interface to be acceptable, but several areas that should be improved.

QYT relies on the menu system to provide control of many of the settings. This is similar to the various Chinese handhelds where you push the MENU button to access the menus, followed by UP/DOWN to sequence through the menus, followed by MENU to access the specific setting. Then the UP/DOWN buttons choose the value of the setting and another push on MENU to accept it. The volume control setting is buried in this menu system, which seems like a poor choice. Fortunately, Mick/M0VMK pointed out that the volume can also be set by enabling the monitor feature (big button on the top of the mic) and hitting UP/DOWN.

This design depends too much on the menu system. A few user-defined buttons would be a real help. This radio could benefit from a serious redesign using User-Centered Design.

This radio has one receiver but allows for three independent frequencies to be displayed simultaneously. There is a scanning mode that tries to emulate a multi-receiver radio. This too is all too common with the Chinese radios…somehow they have it in their heads that this adds value for the user. My experience is that it mostly confuses the user. Most users would be better served with a single frequency display, supplemented with dual-watch and scanning capability.

You probably won’t be surprised that the user manual is terrible, also common with Chinese manufacturers, but this one is particularly bad. Same with the programming software…it mostly works (I had a few crashes) but it is poorly written.

On The Air (SOTA)

I was very interested in trying out this radio for Summits On The Air (SOTA) use. The idea is that the radio can be stuffed into a fanny pack, with the microphone, speaker, display, and controls in your hand.

The basic concept of holding everything in the palm of my hand worked out quite well. The display was visible in bright sunlight, the speaker audio was clear, and the microphone worked great. I made a number of SOTA contacts and received good signal reports. I held the microphone in one hand and pointed the 3-element Yagi antenna with the other hand. (Joyce/K0JJW assisted with logging and we took turns working the SOTA chasers.)

As soon as I fired up the radio, I heard interference on the 2m band, not very strong but noticable. It sounded like it was coming from an FM broadcast station. Pointing the Yagi antenna in the direction of the FM station on the adjacent mountain seemed to confirm the source. I did not hear any interference on the 70cm band. I’ve operated from this SOTA summit before and have not noticed any interference with other equipment, including Yaesu handhelds. Also, I switched to my Yaesu FT-90 and the broadcast station was not heard. As various people have suspected, this indicates that the receiver in the QYT is not very robust in terms of rejecting off-channel signals. Of course, this is an anecdotal report, not based on bench measurements.

I also encountered an anomaly where after my transmission, the radio did not revert back to receive quickly. There was a few seconds where no audio was coming out of the transceiver. This caused me to miss a few responses to my CQ call. This issue requires some additional investigation. It may have just been operator error on my part. However, I suspect that the radio was probably locking onto another frequency but I am not sure (see previous comments about the three frequency scanning mode). So file this issue under “stay tuned for more information.”

Note that I did not use the radio very much on repeaters, focusing on SOTA simplex operating with no transmit offset or CTCSS.

Conclusion

On the positive side, I really like the microphone-centric approach that this radio uses. The user interface can be improved but it is good enough.

The two big limitations of this radio are 1) low RF power output and 2) weak off-channel receiver performance. Now you might say that the RF power is not off by that much but my interest is having a SOTA radio that greatly exceeds the power of a typical 5 W handheld. On the 70 cm band, this radio only put out 15 W, so only 4.7 dB better than a handheld. The poor receiver performance will tend be an issue on summits that have radio installations nearby. In some cases, this can completely prevent a VHF SOTA activation.

I will probably use this radio again for SOTA activations but I’ll be bringing along a backup rig, just in case.

The post Checking Out The KT-WP12 Transceiver 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].

From the RAIN HamCast episode #56, 2021-XII-11 (used with permission):

When you were knee high to a grasshopper, did you undergo a game-changing experience that shaped your future career?

Here is text from the introduction:

Tomas Hood/NW7US did. Tomas has been a shortwave enthusiast since 1973. He was first licensed as a ham in 1990 at age 25.

In the mid 1990s Tomas launched the first civilian space weather propagation website, HFRadio.org, which later spawned SunSpotWatch.com. His website, NW7US has been up and running since June, 1999. Tomas has contributed to the Space Weather Propagation column in CQ magazine for over 20 years, and for The Spectrum Monitor magazine since 2014.

A product of the Pacific northwest, Tomas resides today in Fayetteville, OH. RAIN’s Hap Holly/KC9RP spoke with Tomas recently about Solar Cycle 25 and the game-changing afternoon Tomas experienced in 1973 at age 8 ( Read more about this, at his amateur radio and space weather blog: https://blog.NW7US.us/ ).

Here is the first part of the two-part interview:

Mentioned in the interview is Skylab:

From Wikipedia’s article on Skylab: Skylab was the first United States space station, launched by NASA, occupied for about 24 weeks between May 1973 and February 1974. It was operated by three separate three-astronaut crews: Skylab 2, Skylab 3, and Skylab 4. Major operations included an orbital workshop, a solar observatory, Earth observation, and hundreds of experiments.

Tomas was drawn into space weather as a life-long passion, by inspiration from Skylab, and from the hourly propagation bulletin from the radio station WWV.

WATCH FOR THE NEXT EPISODE, PART TWO

This video is only part one. The RAIN HamCast will conclude Hap’s conversation with Tomas in RAIN HamCast #57, scheduled for posting Christmas Day.

Hap Holly, of the infamous RAIN Report (RAIN = Radio Amateur Information Network), is now producing The RAIN HamCast. The results are both on https://therainreport.com and on the RAIN HamCast YouTube channel, https://www.youtube.com/channel/UCUbNkaUvX_lt5IiDkS9aS4g

KEEP ON HAMMING!

The RAIN Hamcast is produced and edited by Hap Holly/KC9RP; this biweekly podcast is copyright 1985-2021 RAIN, All rights reserved. RAIN programming is formatted for Amateur Radio transmission and is made available under a Creative Commons license; downloading, sharing, posting and transmission of this ham radio program via Amateur Radio in its entirety are encouraged. Your support and feedback are welcome on https://therainreport.com. Thanks for YouTube Technical Assistance from Tom Shimizu/N9JDI.

 

Visit, subscribe: NW7US Radio Communications and Propagation YouTube Channel

 Moving along with my contest code...I call it contest code as it's really not conversation code as that takes a bit more skill. Not saying that contest code does not take skill but you kinda have an idea with contest code what to expect.........a call sign, a number or in some instances a name. Conversational code is more whatever the heck you both are going to talk about. Now mind you the RST, name, QTH and WX are kinda standard it's when the op deviates from the plan and gets going on about the vacation his family took in your hometown.......I digress. 

I have been trying to build on my contest CW speed, accuracy and most of all confidence. I have been doing that with these programs G4FON cw traner, RufzXP, Morse Runner and LCWO code practice programs. What I have found is you have good days and you have not-so-good days. There was a practice session when I would hear the code and freeze wondering for some crazy reason what that letter was. Then the mixing up of letters on the keyboard, going to a "G" but end up typing an "H". Oh and then a big confidence builder is when the contest program send you "SH5IH" 

The most recent issue I was having was hitting between the letters on the keyboard and gong for letters on the 3rd row up such as "W, T or Y" but hitting the numbers above those letters.  I finally figured out what the issue was. Seems when I was practicing on my Mac laptop the keys are closer together than on my Lenovo keyboard. I was doing twice as much practicing on my Mac laptop and my fingers were trained to only move slightly on the keyboard. This meant issues on the larger Lenovo keyboard. The solution was to bring the Lenovo keyboard to the make and use that. 

Anyway today I was thrilled to get zero mistakes on the G4FON CW contest trainer today......I know I know I am all ready for the big ego bubble burst the next session when missing more than I copy. But so goes the contest CW battle. For now, I am bathing in the success! 

This weekend is the annual running of the RAC Canada Winter contest and I am entering the CW only category and yes you guessed it I am going to be calling CQ..........unless I see a nice RAC multiplier worth 20 points!! 

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

 Moving along with my contest code...I call it contest code as it's really not conversation code as that takes a bit more skill. Not saying that contest code does not take skill but you kinda have an idea with contest code what to expect.........a call sign, a number or in some instances a name. Conversational code is more whatever the heck you both are going to talk about. Now mind you the RST, name, QTH and WX are kinda standard it's when the op deviates from the plan and gets going on about the vacation his family took in your hometown.......I digress. 

I have been trying to build on my contest CW speed, accuracy and most of all confidence. I have been doing that with these programs G4FON cw traner, RufzXP, Morse Runner and LCWO code practice programs. What I have found is you have good days and you have not-so-good days. There was a practice session when I would hear the code and freeze wondering for some crazy reason what that letter was. Then the mixing up of letters on the keyboard, going to a "G" but end up typing an "H". Oh and then a big confidence builder is when the contest program send you "SH5IH" 

The most recent issue I was having was hitting between the letters on the keyboard and gong for letters on the 3rd row up such as "W, T or Y" but hitting the numbers above those letters.  I finally figured out what the issue was. Seems when I was practicing on my Mac laptop the keys are closer together than on my Lenovo keyboard. I was doing twice as much practicing on my Mac laptop and my fingers were trained to only move slightly on the keyboard. This meant issues on the larger Lenovo keyboard. The solution was to bring the Lenovo keyboard to the make and use that. 

Anyway today I was thrilled to get zero mistakes on the G4FON CW contest trainer today......I know I know I am all ready for the big ego bubble burst the next session when missing more than I copy. But so goes the contest CW battle. For now, I am bathing in the success! 

This weekend is the annual running of the RAC Canada Winter contest and I am entering the CW only category and yes you guessed it I am going to be calling CQ..........unless I see a nice RAC multiplier worth 20 points!! 

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

When operating portable, I use Lithium Iron Phosphate batteries from Bioenno. Most of my portable operating is for Summits On The Air (SOTA) and I wrote about it here:

My SOTA Battery Journey

For POTA activations, I purchased a larger, 20 Ah Bioenno battery and use it to power a Yaesu FT-991 (and other radios). This battery has worked out really well. It is a bit large for backpack portable and weighs 5.4 pounds, but I have taken it along on a few SOTA activations.

Powerwerx PWRbox

I decided the battery could use a case to protect it while being tossed around in the back of the Jeep. Powerwerx has a really good battery box that includes a digital voltage readout, automotive (“cigarette lighter”) socket, dual PowerPole plugs and high-current binding posts.

Initially, I did not think I needed the extra gizmos, and I did not want to take up more space with the battery system. Later, I figured that I could always pull the battery out of the box and use it in its original form.

The power switch is handy for turning on/off the battery power and the digital voltmeter provides a simple view of the battery condition. Most of the time, I use the PowerPole connectors to connect up my radios but occasionally the automotive socket comes in handy.

I used some of the plastic packing material that came with the box to hold the battery in place. A little bit of cutting with a sharp knife produced a good fit. There is enough room above the battery for the Bioenno charger, so it makes for a nice kit. The charger connects to the original charging plug on the battery.

As expected, Powerwerx did a good job of wiring up the various components and included fuses in both the positive and negative cables. The box is big enough to hold a 40 Ah battery and I am tempted to upgrade it for larger capacity, but the 20 Ah battery has been sufficient, so far.

I’ve used this battery box for multiple POTA activations and a few other situations when I just needed to power up a radio at home. It works great. The voltmeter gives me a quick check of the battery status and the PowerPole connectors make for easy hookup.

The PWRbox costs $109.99, battery not included.

73 Bob K0NR

The post Power Box for Bioenno Battery 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].