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Is bigger better? The Big Kansas Coil Vertical Antenna System

The Big Kansas Coil is a lightweight, portable, and durable base loaded vertical antenna system that when paired with a telescoping whip operates on the 6 through 80 meter ham radio bands. This coil offers some innovative features, including: 3D printed construction out of engineering grade materials, integrated coil scale, easy to use adjustment collar, and a wider diameter coil than anything else on the market.

The Big Kansas Coil: https://bigkansascoil.com/
HF Manpack Collapsible 7 Element Whip Antenna: https://amzn.to/4epr3zh
MFJ-1979 telescoping whip antenna: https://amzn.to/3Vv6Dfv

So what makes the big Kansas Coil different than other base loaded coils? First off is the construction. This coil is entirely 3D printed out of engineering grade Glass and Carbon Fiber filled Nylon material. This coil is lightweight and durable. The material is weather and heat resistant so this antenna is rated for up to 100 watts digital modes with a 50% duty cycle.

The second is its size, or diameter of the coil. This coil is wider than anything else on the market. In building loading or inductance coils, the diameter of the coil will affect the Q or quality factor. Narrow coils will have a very high Q and extremely sharp bandwidth on the lower bands. If you make the coil wider, the Q is reduced and you end up with more bandwidth. I’ll demonstrate what that means a bit later in this video.

As a bonus, patrons can view the unedited phone contacts for this POTA activation. Visit my page on Patreon for details: https://www.patreon.com/kb9vbrantennas


Links may be affiliate links. As an Amazon Associate, I earn from qualifying purchases. This does not affect the price you pay.


The post Is bigger better? The Big Kansas Coil Vertical Antenna System appeared first on KB9VBR Antennas.

Another one

I've decided to make the 4States QRP Group 4S-Tuner the official tuner of the W2LJ QMX Portable Ops bag. So I ordered another one for the shack for when I use the HW-8.  This way, I don't have to keep transferring the one I have back and forth between car and shack.

I really, really like the function of the two LEDs.  Great design feature by David Wayne Cripe NM0S!

When the red one is bright and the green one is out, the SWR is too high. When the two LEDs are of equal brightness, you have a 2:1 SWR. When the green LED is at max brightness, and the red LED is at minimum brightness or out altogether, your SWR is around 1:1.


This is a T-Match Tuner and I find it a bit easier to use, having the inductor in the circuit. Nothing against the ZM-2 as it is a wonderful little unit and will stay in the KX3 bag, should the autotuner fail for whatever reason. But sometimes, I just have a bit of trouble getting that single red LED to dim. I guess it's range is just a little narrower than the 4S-Tuner.

I already know it works well with my KM4CFT EFRW antenna. This weekend, time and weather permitting, I'd like to see how it handles the AX1 from our patio tabletop - a simulated POTA activation. Have to practice, just like the astronauts did! HI HI !

Onto another subject, with all the CMEs and solar flares that have been occurring the past few weeks, I saw this photo on Facebook, taken just yesterday, from the 1,000 Islands region in Upstate NY.


Marianne and I are heading up there soon for some away time for our Anniversary - I know I've mentioned that before. Will this finally be a good chance for me to see the Northern Lights? I hope so! If I'm lucky enough, I'll try to get some photos.

While I'm on the subject of photos - here's a neat one I came across the other day, for the QRP Image of the Day. This was posted on Facebook by  Chris Farnham W1YTQ.  He was camping with his son's scout troop in Boston Harbor Island up in Massachusetts and one of the licensed Scouts actually accomplished his first POTA activation. Later, after the hustle and bustle of the day was over, Chris decided to stroll on down to the beach to activate - Boston Islands Park - US-2421, himself.


Isn't that a beauty of a shot? The moon and it's reflection on the water, the KH1 with the antenna sticking up, and that cube-ish  lantern. What a great mood shot! And once again, it shows that you don't have to tote around a whole mess of equipment to have a good time!

72 de Larry W2LJ

QRP - When you care to send the very least!

CFT1 QRP: Labor Day Morning POTA with Vlado at Lake James State Park!

Labor Day weekend turned out to be full of labor here at QTH K4SWL. My wife and I had numerous projects to tackle, and my daughters had various activities scheduled as well. By Sunday, my wife looked at me and said, “You need a break. Why not spend tomorrow catching up on POTA?” That was … Continue reading CFT1 QRP: Labor Day Morning POTA with Vlado at Lake James State Park!

POTAing on!

Good friend, Alan W2AEW does a POTA activation with a new QRP rig. 

Boy howdy! These new QRP rigs are popping up so fast, it's hard to keep up with them - what's new, what's what ....... WOW! Going to sound like an oldster, but I can remember when you could count available QRP rigs with the fingers on both hands. Pickin's were slim ...... no more!

Alan was at my favorite spot - Washington Rock State Park, in Greenbrook, NJ.

72 de Larry W2LJ

QRP - When you care to send the very least!

Jeff’s Backcountry POTA Adventure: Campbell-Brown Ecological Reserve Activation

Many thanks to Jeff (VE7EFF) who shares the following guest post: Off The Beaten Path – Campbell-Brown Ecological Reserve, CA-3925 by Jeff (VE7EFF) This is the 2nd backpacked-in POTA activation outing that my wife and I have done this summer.  I’m the 2nd person to have ever activated the Campbell-Brown Ecological Reserve (CA-3925).  Last year was the … Continue reading Jeff’s Backcountry POTA Adventure: Campbell-Brown Ecological Reserve Activation

Should I Submit A Log?

Lately, I’ve been getting questions about whether a ham needs to log radio contacts, whether they need to submit a log, and how to do it. Logging is a complex topic that can require a long and detailed explanation, but I am going to focus on the questions I’ve been hearing lately. I’ll also provide some links for further investigation. Continue reading Should I Submit A Log?

The post Should I Submit A Log? appeared first on The KØNR Radio Site.

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Should I Submit A Log?

Recently, I’ve been getting questions about whether a ham needs to log radio contacts, whether they need to submit a log, and how to do it. Logging is a complex topic that can require a long and detailed explanation, but I am going to focus on the questions I’ve been hearing lately. I’ll also provide some links for further investigation. For starters, the ARRL has a good introduction to logging.

A paper ham radio log

Why Keep A Log?

The FCC does not require you to log your amateur radio contacts. Many radio amateurs, especially if they just operate casually on 2m and 70 cm, don’t bother to keep a log. Probably the most common reason for having a log is to have a record of your radio contacts, in terms of stations worked, on what band and what conditions. This might be just for your own personal satisfaction or you might want to keep track of these contacts so you can get credit for an award, such as the ARRL Worked All States (WAS) award.

Paper or Electronic?

The Old School way of keeping a log is on paper as shown in the figure above. This approach is simple and reliable technology but is quite limited in the information age. These days, most hams that record log information store it electronically. Imagine that you log thousands of contacts over time and then want to find a particular callsign or location. Much better to do this electronically. There are many good software programs available, too many to list here. I currently use Amateur Contact Log from N3FPJ. The good news is that there is a standard file format for storing and moving ham radio contact information: Amateur Data Interchange Format (ADIF). If you want to change logging software, you export an ADIF file and import into the new program.

I Worked a Contest Station, Do I Have to Submit a Log?

Sometimes radio ham works a few stations that are active in a particular contest and they wonder if they must submit a log to the contest sponsors so that these these stations get credit for the contacts. The almost universal answer to this is: No. Don’t worry about submitting a contest log if you aren’t really “in the contest.” The stations you work still get credit for your contact with them. (This is true for all major contests…I am still looking for a contest where this is not true.) Contests are designed to encourage activity, so they want everyone to join in, even if they aren’t all that serious about contesting. (The contest sponsors will appreciate any and all logs submitted, so consider that.)

If I Am Actively Working a Contest, What Do I Do?

If you are actively participating in a contest, you should use a logging program that is tuned for that particular contest. This is important because the contest logging software knows about the scoring for the contest and lets you know if you have already worked a station you hear. The most popular logging software for contesting is the N1MM Plus software. There are other programs you can consider. Typically, you would use N1MM during the contest and then export the info into an ADIF file, which is imported into your “main” logging program.

What is a Cabrillo File?

While the ADIF file format is most universal in ham radio logging, there is another file format used for contesting. This is the Cabrillo file format. Your contest logging software can generate a Cabrillo file for submitting to the contest sponsor. You may also want to generate an ADIF file to import into your normal logging program.

I Worked a POTA Station, Do I Have to Submit a Log?

Parks On The Air (POTA) is set up so that only the activator station submits a log. If you are working an activator station, you are a hunter station. The POTA scores are all based on the activator logs and hunters cannot submit a log. What you can do is register on the POTA website to see the contacts that the activators have submitted for you.

I Worked a SOTA Station, Do I Have to Submit a Log?

Summits On The Air (SOTA) is set up so that both activators and chasers submit logs to the SOTA website. However, the SOTA system operates on the honor system, so an activator can claim a contact with you without you submitting a log. So if you hear a SOTA station, go ahead and work them. You don’t have to submit a log. On the other hand, if you want credit for chasing a summit, you need to submit a log. So that activator is fine not having you submit a log but you may want to do that to get credit for you.

How Do I Get Credit For Working A Country?

The gold standard for chasing countries, I mean entities, is DX Century Club (DXCC). If you are interested in DX, you should register with Logbook of The World (LoTW) with the ARRL. To get credit for working an entity (country), you need to submit your log and it must match the log submitted by the DX station. This is a higher level of confirmation because both parties must submit the log info and it must match within reasonable error limits.

There are other award systems for working countries, offered by QRZ, eQSL, etc.

How Do I Get Credit For Working a Grid on VHF/UHF?

The VHF UHF Century Club (VUCC) is the VHF/UHF equivalent to DXCC. Here the emphasis is on working maidenhead grid locators on the bands above 50 MHz. Again, Logbook of The World is the database that authenticates confirmed contacts on these bands. Both parties must submit the log info and it must match within reasonable error limits.

What If Someone Needs My Log Submitted?

Most of the time, us normal hams are not considered DX. That is, that other station in the Cayman Islands doesn’t really need our contact confirmed. But there are exceptions. You might be in a state the other station needs confirmed. Or maybe it’s your county they need. In such a case, you might want to make a special effort to provide your log information to the right database. It will depend on what the other station needs…if they are going for an ARRL award, then Logbook of The World is the right place to upload your log. But they might be after a QRZ award or eQSL award, in which case you would need to provide your log to those websites.

Wrap Up

These are some of the questions I’ve been hearing.
What did I miss?
Anything else to add?

73 Bob K0NR

The post Should I Submit A Log? appeared first on The KØNR Radio Site.

POTA Repeat Offender and SKCC WES

The monthly running of the Straight Key Century Club’s Weekend Sprintathon (WES) contest was this weekend. I needed two more activations at Marsh Creek State Park for a POTA “Repeat Offender” award, so I headed out both Saturday and Sunday for POTA/WWFF activations and to make a few WES contacts.

We had some outstanding weather here in southeastern Pennsylvania, so I knew Marsh Creek (US-1380, KFF-1380) was going to be pretty busy. Given that, I headed out early on Saturday morning. I found a parking spot in the boat launch area, but the parking lot was filling up fast. 

My location in Marsh Creek State Park (US-1380, KFF-1380) for a POTA activation and the SKCC WES
My location in Marsh Creek State Park (US-1380, KFF-1380) for a POTA/WWFF activation and the SKCC WES

My trusty Penntek TR-35 was the perfect rig for this weekend. The TR-35’s separate straight key and paddle inputs let me instantly switch between the two without having to make configuration changes in the radio. I also went with my usual 12-foot whip and homebrew loading coil

The separate straight key and paddle inputs on the TR-35 lets me instantly switch between the two. (Note to Self: Clean out your truck!)
The separate straight key and paddle inputs on the TR-35 lets me instantly switch between the two. (Note to Self: Clean out your truck!)

The 40M band was alive and well, so I spent most of my time there. I alternated between calling “CQ POTA” with the paddles and searching and pouncing SKCC WES stations with my little MS2 straight key. In about an hour of operating, I logged 26 contacts. Among those were three park-to-park QSOs and six SKCC WES QSOs. 

As great as the weather was on Saturday, it was even better on Sunday. I wanted to attend my grandson’s hockey game, so I went out even earlier this time and kept it even shorter. Even though I got an earlier start than the day before, the parking lot was even more crowded this time around. 

Once again, 40M was in excellent shape, and I ended up staying there for the duration. I logged 19 contacts in about 45 minutes, with three park-to-park and three more WES contacts. Then it was time to head home to take care of a few things before going to the soccer game.

In the end, I didn’t set any records in the WES contest, but I got in the two activations needed for my Repeat Offender award. 

72, Craig WB3GCK

Navigating Quetico: Rod’s POTA Adventure with the (tr)uSDX

Many thanks to Rod (VA3MZD) for sharing the following guest post: Operating POTA from the interior of Quetico Provincial Park CA-0359 with a (tr)uSDX By Rod Murray (VA3MZD) In a previous guest post here on QRPer I gave a brief history of my introduction to Ham radio and specifically POTA and my experiences activating local … Continue reading Navigating Quetico: Rod’s POTA Adventure with the (tr)uSDX

Mount Keen

Start of the ascent

Start of the ascent

Another day off and the forecast was promising blue skies and sunshine. I’d spent the evenings this week trawling sotlas trying to figure out where to go. It was our youngest’s P1 stay and play this morning, plus swim training after school, so I had to fit my trip into that window. I’ve been finding I go faster than OS Maps walking prediction but yet to keep detailed enough records to figure out my speed, so planning a new location is always hit or miss (along with the alerts I post!) To complicate matters more, I was planning on cycling the first part of the route before walking. I settled on Mount Keen and left after a fun session with the P1s.

OS Map of the route

OS Map of the route

I was also going to go the Glen Esk route, from the south, vs. the Glen Tanar one from the north. I thought it was a closer drive to home, but it was actually further, however, I think the walk is shorter this way. The road into Glen Esk seems to go on and on and on! Plus no end of dumb pheasants to watch out for on the road. I’ve actually done this hill before, maybe 12/13 years ago and on that trip we ended up walking through a blizzard! I can’t remember if we even made it to the top or decided to head back down, to then find the stream crossing to be more challenging than the way up!

Stream crossing

Stream crossing

I cycled from the car park, just before the Lochlee Parish Church, along the north side of the river. My bike is a “hybrid” which is more road bike than mountain bike but has thickish tyres. I think this was probably the limit for it, as it was quite rocky and the ride was very rattly! I made it, and it cut off a good chunk of time but wasn’t always pleasant. I set off at 10:45 from the car park, and cycled for 30 minutes to just before the stream crossing in the picture above. The terrain is fairly flat with only a small incline the whole way. You also pass the Queen’s Well, which is nice to look at if you’ve never seen it before.

Looking back and Queen’s Well

Looking back and Queen’s Well

The path is very clear and well made the whole way, some places its been eroded by water, or repaired with big chunks of rock. The roadway keeps going and you have to make sure you turn off towards Mount Keen.

A good view back down the Glen on the way up

A good view back down the Glen on the way up

Final path to the summit (beyond the ridge)

Final path to the summit (beyond the ridge)

After an hour I’d reached the top and had my HT out as MM0VPM was on Sgor Gaoith and I was hoping for a summit to summit. Seems the weather wasn’t as good with him inland, and the snow I could see in the distance was probably where he was! I heard GM4CCN calling CQ and tried to answer but the Aberdeen folk thought I was calling CQ and called me back. Made a couple of contacts on the telescopic RH770 with the new FT-65 before setting up the slim G off to the side.

Made it!

Made it!

There were quite a few folks on the summit so I was over to the west side. Not sure if that was the best as I was in the shadow of the cairn and perhaps they might’ve been blocking my signal. I heard GM4CCN a few more times and we tried to have a QSO. I found holding the PTT on the FT65 difficult when my hands were getting cold, that I don’t think I was actually transmitting and so we never made the QSO. Bill, GM0NRT, kept saying I dropped out but I think it was not holding the PTT. I was probably holding it wrong, in my right hand and using my finger on the PTT, vs. my left and using my thumb. Or I should’ve put on a glove.

Lochnagar

Lochnagar

I tried the slim G for a bit, had a couple more but not as many as I thought I’d get on this summit. I switched to HF with the 5.5m vertical and tried 20m. A good reply on 20m with 16 in the log. I did try 10m for a bit. I heard a VK station absolutely booming in, who was talking to a MW0 station in Wales, but only one reply to my CQ. By this time I was getting cold and I’d been on the summit an hour, and should probably be getting back.

Towards Aberdeen

Towards Aberdeen

As I was packing up a lady, who I’d passed on my bike, asked me to take a photo of her. She also asked if I was a Russian spy. I said a good spy wouldn’t reveal if they were one - but also that could be double bluffing. We ended up walking back down together until I got to my bike. She was trying to complete all the Munros, and had about 20-odd left. I thought about making my excuses and running ahead but it was nice having a little chat and she wasn’t really any slower than me.

The bike ride back was easier as slightly downhill, so only took 20 minutes, and I was back at the car in no time, and home with 30 minutes to spare! Although only 12% battery in the car. The journey out had used 51% of the battery, which was slightly worrying but I suspect it was the colder morning, and now it was 15 C.

Upcoming Portable ops

Its another gig sitting my “Grand Kittens” for my daughter as she and her hubby will be out of town from September 20th for a week. I guess I did a good job when they went to Cuba last January so I got invited back… I will be operating /p from Ottawa from September 21st to September 27th.

Most of my operating will be from September 23rd onwards.

As you can see from the above pic… they like having me around (one cat at least)

This time its a bit different because the car will be going with them to their rental cottage which is about 2 hours north of Ottawa.

However I plan to take both my Portable Station and my Transportable Station with me so I can activate some POTA locations with the Xiegu X5105 and also use my Yaesu FT 891 as I control the Trans Provincial Net for my 11am slot.


Before we go any further please remember that all my RF Plans you will see below are if the weather is good. I don’t like operating outside in the rain and neither do my radios….


The closest park to where they live is a City Park and not a POTA park.

The park has two sport fields and they have bleachers so it will be easy as I will have somewhere to sit along with strap my MFJ 33 foot mast to so the EFHW will have some altitude.

That will allow me to act as NCS with a 100w station with a full size antenna.

Once the net is over I will be packing up and heading back to the apartment for lunch. In the afternoons…. Once again if the weather is cooperating I plan to take the X5105 out to one or two of the local POTA Parks for a couple of hours. Check POTA Spots….

Due to the fact of not having access to a vehicle I will be heading out either on foot or public transport. After checking the POTA map it seems there are quite a few POTA sites that are fairly easy to access via the Bus and LRT service. However a few of the “Locals” have mentioned that they might pick me up and we could do an activation as a group so you never know.

They say that “getting there is half the fun” and this might be the case.

Stay tuned…

73bob

Yes its an old picture but the hobby has been fun since the 1990’s

Upcoming Portable ops

Its another gig sitting my “Grand Kittens” for my daughter as she and her hubby will be out of town from September 20th for a week. I guess I did a good job when they went to Cuba last January so I got invited back… I will be operating /p from Ottawa from September 21st to September 27th.

Most of my operating will be from September 23rd onwards.

As you can see from the above pic… they like having me around (one cat at least)

This time its a bit different because the car will be going with them to their rental cottage which is about 2 hours north of Ottawa.

However I plan to take both my Portable Station and my Transportable Station with me so I can activate some POTA locations with the Xiegu X5105 and also use my Yaesu FT 891 as I control the Trans Provincial Net for my 11am slot.


Before we go any further please remember that all my RF Plans you will see below are if the weather is good. I don’t like operating outside in the rain and neither do my radios….


The closest park to where they live is a City Park and not a POTA park.

The park has two sport fields and they have bleachers so it will be easy as I will have somewhere to sit along with strap my MFJ 33 foot mast to so the EFHW will have some altitude.

That will allow me to act as NCS with a 100w station with a full size antenna.

Once the net is over I will be packing up and heading back to the apartment for lunch. In the afternoons…. Once again if the weather is cooperating I plan to take the X5105 out to one or two of the local POTA Parks for a couple of hours. Check POTA Spots….

Due to the fact of not having access to a vehicle I will be heading out either on foot or public transport. After checking the POTA map it seems there are quite a few POTA sites that are fairly easy to access via the Bus and LRT service. However a few of the “Locals” have mentioned that they might pick me up and we could do an activation as a group so you never know.

They say that “getting there is half the fun” and this might be the case.

Stay tuned…

73bob

Yes its an old picture but the hobby has been fun since the 1990’s

The New Venus SW-6B QRP Transceiver: First POTA Activation and Field Test!

Yesterday morning, around 12:00, I picked up a DHL parcel containing the Venus SW-6B. I was so eager to test it in the field that I dropped my lunch plans, took the SW-6B home, opened the box, and quickly attached Anderson Powerpole connectors to the supplied power cable. I didn’t have time to do anything … Continue reading The New Venus SW-6B QRP Transceiver: First POTA Activation and Field Test!
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