Results of my first POTA activation

 

Gear:

• Radio:  Xiegu G90
• Antenna: JPC-12
• Mode: FT-8

End of the day, after about 3 hours with some time during that messing with things and trying out SSB, I ended up with 45 QSO's.  The wind was obnoxious knocking over my antenna a few times.  My capacitance hat broke during the first free fall.  Added to my shopping list is a sand bag to keep my tripod from going over.  I also need to remember to pack my chair.  I got a little travel/camping table which should work really well to hold my radio.  

Lessons learned.  Still was fun.  I'll get things settled down and will eventually do SSB contacts.  SSB can be a pain right now for me due to learning the radio, getting my antenna working properly, and getting past everyone else trying to make contacts.  It's not as orderly as FT-8...and with FT-8 I don't have to worry about stumbling over my words. 

Alright, long day.  I have gear to clean.  

73

POTA Activate!

I'm live out at Boyce Thompson Arboretum doing a POTA activation.  Right now I'm doing FT-8 but I might hop on SSB after bit.

New Radio and Antenna

     In looking for a more portable radio I picked up a Xiegu G90 based on like everyone recommending it for a low power portable beast.  I picked up a Digirig so I can do digital modes with it and that is so much easier than the Signalink.  This radio is capable of up to 20w transmit power and is much much smaller than my FT-840.  There are a ton of videos out there reviewing this one and covering various configuration pieces so I won't go into too much detail unless someone asks.  

    This thing will do everything I need it to do for POTA type activity.  Right now I'm doing mostly FT-8 as it is easier to do from my house with a more temporary setup in my backyard.  (I'll be starting on my more permanent setup soon). Before I get into how it performed compared to my FT-840 let me cover the new antenna I picked up.

Not a great picture but you should get the idea.  This is a JPC-12 antenna.  It collapses down into a small bag and pretty light.  I created 8 10' long counterpoise wires which fan out from the base.  Not pictured in this is a capacitance hat that sits on top which I added earlier this evening before starting up a FT-8 session.  This antenna has a coil in the middle that has a slider on it that you can move to adjust the antenna for which band you want to use it on.  I only really played with it on 20m and 40m.

I was able to get pretty good SWR without a tuner by just adjusting that slider.   There is more tweaking that can be done but I wasn't in the mood to work through all the bands and get them all figured out.  So I primarily focused on 20m and had great results.   

I had a couple sessions last night with the FT-840 on this antenna and made some good contacts.  This was running at about 50w give or take and the conditions were "Good".

Today this is what I got with the G90 on this antenna while the conditions were "Fair" and "Poor".  Now, this is just contacts.  I was being heard much further out.   There was just nobody participating on the far end or I couldn't hear them.  The conditions were coming and going.  I could start a session with someone and then lose them.    Either way, less than a couple hours and 25 contacts.  Despite the conditions, lots of people out doing contacts.  Several POTA activators as well.

Anyways, I really like this setup currently.  The G90 will be my POTA radio.  Much easier to carry and pretty rugged.  The antenna will also be part of my kit.  It doesn't require staking it down.  I had it out most of the weekend with windy conditions and it did pretty well.  Not sure it could take a ton of wind but it can handle a good breeze at the very least.  This, along with my POTA33H mast and EFHW antenna setup will give me a lot of options depending on where I go.  I can easily do CW on this radio so as I learn morse code I will be able to do that with the G90.    Eventually I'll get a QMX and then I'll have a super light QRP setup that does 5w, this G90 that does 20w, and then I'll have a 100w home radio if I keep the FT-840.  

That's it for now.  I'll be working on a couple projects over the coming weeks.  I am going to build a 49:1 unun for my base station.   I'm going to be building a 40m EFHW permanent installation in my backyard.  I have the space and I have a couple options of how I run it that should keep it mostly unnoticeable so the HOA won't complain.  With this I can get 40m, 20m, 15m, and 10m and with a tuner 30m, 17m, 12m, and 6m.  I might build a coil to add 80m or maybe when I get the tape measure out and do the math I might be able to do some sort of layout that I can naturally get 80m.  

Alright, that's it for today.  73

Birthday Weekend Fun

 Playing Around With FT-8

So after my initial run with making contacts on Saturday, I went back out that night around sunset and spent more time making contacts.  This time via FT-8.  I have to jump through a few hoops to make this work but it works.  If anyone is interested in the specific on what pieces connected where and with what configurations let me know and I'll write it all up with pictures.  But high level, from my FT-840 I connect it to a Signalink device which then connects to my laptop.  I also have the CAT cable which goes from the FT-840 to my laptop.  Then I use a combination of tools.  flrig as it works best with the radio.  wsjtx to do the actual FT-8 communication, and then Power Logger to track my contacts.  

I jumped back and forth between 20m and 40m and spent about an hour last night and then another 2 1/2 hours or so this morning.  Last night I made about 3 FT-8 contacts one of which was out of Russia.

This screenshot also included the handful of SSB contacts I had made during that session.  Blue are 40m contacts and Green are 20m.   

This was this mornings session.  It's still the hot season here and I finally called it as I was sweating and I was putting the radio to work.   So I packed everything up.  This was a lot of fun figuring all of this out.  What worked, what didn't how to get everything to talk.  There were a couple contests going on like Route 66 on the Air, QSO Parties, and the ever present Parks on the Air.  

I'll be traveling this week for work.  I'll be out in Columbus.  I was going to bring my new portable right but I decided against it.  I really need to spend more time studying for my Extra exam so I'm going to just take a handheld.  I have a cheap Quansheng UV-K5 that I programmed up with the local repeaters there so I will still keep an ear out for activity while I'm there and maybe make a contact or two.  But my main focus during my downtime, and especially while on the flight, will be to study.  

Anyways, I'm sure there are like maybe 1 or 2 people who might look at this blog however if there is someone who stumbles across it and what I am doing is in line with what you are doing or want to do, let me know.  If there are things you want me to elaborate on try let me know.  I'm just having fun and learning as I go.  I think next weekend I'm going to try a different antenna configuration and see what the results are.  

73

Contact made

 First Contact

Well, first contact on HF.  Today there was a HIP get together here for the Be-HIP group I have been involved with.  I took out my gear and totally figured I'd do something and that I would not have everything I need even though I thought I did.  And I was definitely not prepared.   I didn't bring a chair which made it hard to be in the shade...shoot, I didn't bring shade either which I could do and will do in the future.   So I found a table that I figured would get some shade eventually and tried to set things up.  And as I progressed, I got hot...and so did my gear to the point where I wasn't feeling well and I called it.  I packed up my stuff and ended up just talking with the others for a bit more before heading home.

So what did I learn from that.  Bring more water, shade, and a chair.  The city parks are also more restrictive in what you can do.  An prime example is you can't put anything into the ground.  There are trees to use and depending on where we are I can easily make use of my antenna mast and run the wire across to a tree.  I have a tire flagpole stand to help with this.  I'm actually using this in the background for my mast right now.  You can put weight on it or just drive over it and let the weight of your car hold it in place.  So I think next time I'm going to bring shade that can go over the back of my car and beyond so I can sit and stay cooler if it is hot.  I also learned that I should finish getting my nanovna settings all setup and saved.  I have most of them there but I missed a couple and that slowed me down in the heat to figure out what needed to be changed where.  I also had not used the tuner before nor my FT-840 really so I was struggling to figure out how to test my antenna.

When I got home I went directly into my back yard and started setting things up there.   For this I didn't start with my home made antennas like I was trying to do earlier today, I started with my Xtenna EFHW.  I hung the balun from my tree and ran the wire out towards a trampoline we have.   I used the flagpole stand and slid it under the trampoline and I was off.  The next step was to test the SWR on my antenna and get the length where it needs to be.  When you get them, or even when you make them, you start long..it is easier to cut then to add.  So when I started it was off the chart.  I was looking at 20m as that is good day and night right now.   

After about 6 or 7 attempts where I cut a few feet off the wire I got it down to below 1.5 and since I was hot and raising and lowering the wire was a pain in the arse I asked google for validation and it came back and said it was fantastic.  (Don't trust Google, but it does help).   That was at about 1pm.  I pulled the NanoVNA from the wire and hooked the wire up to my tuner which was already connected to my radio.  I did the tune process which I think I did right and then I started hunting.  

I just started using a program called Ham2k Power Logger (Next).  I've had it installed on my phone but I watched a Youtube video yesterday talking about the new version and using it on a Mac.  So I fired that up after firing up flrig which I seem to need for this FT-840.  I also had wsjtx running didn't look at it.  

About 20 mins later I made my first contact.  I had been looking at different frequencies for a while.  Power Logger will show recent spottings so you can see that a specific callsign was just seen on a specific frequency.  It gives you a bunch more info like the POTA information.  You can click on it and it will automatically tune your radio (if you have all of that setup which I do).  So I was jumping around checking different spots.  I was able to hear a few different people in places like Montana, Washington, and Texas some of which were quite loud and clear.  But I was also seeing some of them fading in and out.    But this guy was one that was loud and clear coming out of Texas.  This guy was doing a POTA activation out of Austin State Park and I was able to make clear contact with him.  

I made a couple more contacts over the next 30 minutes give or take before deciding I was sweating too much and it was time to take a break.  I'll leave the antenna up for now so I can plug things in easily tonight and/or tomorrow.  Evening will open up 40m which will be interesting to see if I get anything.

For my testing I just used a tv tray stand and had my radio, tuner, and laptop on it with my battery on the ground.

The Xtenna balun is hanging in that tree.

And you can see my mast there. 

So that is it for now.  It's time to throw my trunks on and hop in the pool

Where my contacts were today.

Ivan

TGIF - Choke and a New Radio

 

I still need to test it, but I made it.  RG8X cable, a couple PL-259 connectors, and a F240-31 Toroid. The 240 is the overall diameter of the core and the 31 is the material type.  This seems to be the right type to get based on various sources so I went with it.  I got these from Palomar Engineers who seem to have a good reputation.  There are a lot of ways to make a choke.  I went with this because I didn't want a box and I had the materials.  I have a couple more toroids so I'm going to make a couple more with various methods.  The general recommendation is at least one choke so this is what I figured I'd start with.  Like I said, I still need to test this to see if I built it right and also how well it works.  This will be one of my portable ones.  I'll build one into a box for my permanent installation at home.  

The other thing I want to point out is figuring out what connectors you want to use.  I went with the PL-259's and probably should have gone with one male and one female.  It really depends on where you are going to put the choke.  Most of the premade antennas like the EFHW types you can get like the one I got from Xtenna make use of bnc connections on the antenna.  My coax that I got came with PL-259 on both ends but it also came with a PL-259 to BNC adapter so I can plug that right into the antenna.  But if I want to put the choke there, I would want PL-259 to BNC ideally to reduce the amount of adapters needed.  If I want to put it right off my radio, then Female to Male PL-259 would be what I need.  But I only had the parts I used at this time.  I'll keep adding to my parts inventory and the next one will be different.

Basic Instructions for wrapping the toroid

Take 3-4 feet of RG-8X coax and make sure you leave about the same amount on each end so you can attach the connectors
Pull some of the coax through the center of the toroid and using a zip tie, secure it to the toroid.  Make sure you don't make it too tight.  That is one thing you want to make sure, don't pull too hard when you are wrapping especially if you are using thinner cable as you don't want to damage the cable itself.  You want it snug.
Wind the cable around the toroid 6 times counter-clockwise then cross over and wrap the opposite direction clockwise until you get back to where you started leaving you with a total of 12 turns.
Use another zip tie to secure the exit from the toroid.
Finish the ends of the RG-8X line with your PL-259 connectors.

KG-XS20H

Today my newest radio showed up.  A Wouxun KG-XS20H.  This is going to be my portable 2m/1.25m/70cm radio that will go between my car and my bag when I travel.  For example, I'm heading out of town soon for work and I plan on taking this with me.

This one is small.  2.16 in × 4.72 in × 4.7 in (55 mm × 120 mm × 119.5 mm).  Basically fits in your hand.  So it is perfect for travel.  It will 144–148 MHz (2m), 222–225 MHz (1.25m), and 420–450 MHz (70cm) with up to 20w of power.  That should be more than enough for a mobile radio.  

It has its own programming software that also has a Mac version so that was nice.  It is easy to use and is similar to Chirp (and probably most other programming software out there).  I had already staged all my local channels as well as those for the 2 locations I'll be traveling to this year.  Super easy.  The only thing that was annoying is it has a voice that talks to you telling you the channel and other nonsense and a beep both of which were extremely annoying to me.  Through the menu they were easy to turn off.  The one thing that annoyed me about this is that every time I upload the config from the software it resets those items and I can't find where I can set that in the software.    Also, this thing can be powered by a laptop power supply brick.  

Bioenno Power

Last but not least, my batter showed up.  This will be the first of two that I will ultimately have. This is a 12V 20Ah 240 Watt-hours that supports 20A Max continuous/40A Max Peak.  This should be more than enough to handle my POTA setup.   I completely forgot to make sure I had the connectors and wire to go from it to my radio.  I have what I need in my list for a go box but don't think I ordered anything.  Quick look and I have all but one thing and that is easy to get so no worries there. 

Anyways, tomorrow the local Be-HIP group that I joined will be going out to one of the local parks to get on the air.  (HIP = Hams In Park) Similar to POTA except it is in local parks and just for fun and education...which I need.   I'll be sure to take some pictures of whatever monstrosity I end up doing.  Hopefully I'll be successful and make a contact or two.  If not, there is always another day.  

Sunday is my birthday so I'll definitely be setting something up in the backyard to play.  I definitely have everything I need to do that.  

That's it for now.  

Wire Work Day

 Today was prep work.  I'm working towards getting on the air with my FT-840 at home.  This means setting up an antenna in the back yard and running a cable over to my porch where I'll have the radio setup.  This is a temporary setup because it still needs to cool a bit more here before I dare start working in my garage and attic to setup my hopefully permanent setup.  I believe I have almost everything I need to do this temporary setup except 1 item for my mast which should be in any day now.  For the rest, it is really just prep work.

Setup

I believe I have settled on what antenna I am going to try first.  It will be a Quarterwave Vertical and I am basically following Walt Hudson's design (K4OGO) from his Salty Walt's Portable Antenna Sketchbook which you can get from places like Amazon.  He has 2 of these types of books and they are pretty cool.  I also recommend checking out his videos on Youtube.  I actually recommend you immerse yourself in all sorts of HAM content creators.  Find ones that match you and are not trying to sell you things if possible though there are those that sell things that also put out great videos.  Walt will bring up his book but he doesn't push them and he goes over what he is doing in the videos.  The book is just handy.

So with that said, here are the parts I am going to use to do this

• Transmitter - For this I'll be using my Yaesu FT-840
• Tuner - MFJ-941E
• Power Supply - FP-800
• Mast - POTA33H - I can do up to a 40m Quarterwave Vertical
• Antenna wire.  40 meter requires ~32.61' and 20 meter requires ~16.44' (using the quick reference he has in the book which is honed in on 7.175 Mhz and 14.230 Mhz respectfully.)
• Counterpoise wires - At least 4 at ~17' long each. 
• 1:1 Balun
• Coax cable run long enough to go from Balun to Transmitter.  I have a great 20' and a cheap 50'.  

Counterpoise Preparation

For the Counterpoise wires, I started by cutting 4 approximately 17' long 18 gauge wire.  I figured this is a good start.  I'll make more later when I have better storage for them.  For each wire, I left one end alone and on the other end I put an alligator clip.  The baluns/unun's I have are really setup more for ring ends and I may switch to that at some point but for this I wanted something quick to attach.

I started by sliding a piece of heat shrink tubing over the wire that was big enough to go over the end of the clip as well.  Then I stripped the end of the wire so we have something to solder.

Then I soldered the wire to the clip.  

Next I crimped the clip to the wire so that we don't put stress on the solder job.

Finally, I slid the shrink tubing up and put my heat gun to work and it looks pretty nice like I might know what I'm doing.  

Antenna Wire Preparation

There is less to prep for this part.  The main thing we want is an easy way to hook up the antenna end to our mast.  I started by cutting the 2 wires to a desired length.  For the 40 meters, we want ~32.61'.  I cut it long to something like 35 and for the 20 meters which needs to be ~16.44', I did something similar with extra wire.  I did this for 2 reasons.  The first is you always want to cut long.  It is easier to shorten your wire than to lengthen it.  I went extra long on these just because I don't have the measuring tape I want so I have a normal metal one that is hard to do 32 feet on.  Plus I was doing this in my office and don't have an easy way to lay out 16 or 32 feet of cable to easily measure it.  When I go to set it up, I'll be able to lay it out in the yard and cut it a bit closer to what I need and then after testing I can trim and adjust even more before putting a connector on it. 

I start by bending back an inch and a half give or take of the wire. 

Then I use some electrical tape to wrap it down leaving a small loop for a clip.

And then I go one step further and slide some heat shrink tubing over it and using my heat gun to make it look all clean and tight.

And then I put a clip on the end.  These S clips are pretty great and cheap on Amazon.  One side to the antenna and one side to the mast (or to rope or something you are using to run the wire to if not to a mast).

So now I have a couple antenna wires ready to go with the exception of the other end which will connect to the balun.  For now I'll just strip those.  

I'm using a "The Everything HF antenna build kit"  I put together (and I really hope it works as it was a pain in the arse) from K4QCD.  If I was successful, it will do 1:1, 4:1, 9:1 and 49:1 depending on where you hook things up to on it.  So I'll just tie things to the proper wire nuts and once I get things where I want them signal wise, I can throw a connector on them to make it easier in the future.  

So that leaves me with the above.  4 Counterpoise wires and 2 different Antenna wires and my multi-purpose feedpoint.  So the next step will be putting it all together.  Once my mast support piece comes in to make using guy wires much easier and more stable I'll execute.  This will probably be next weekend.  So just in time for my birthday.  I'll also have a choke that I can throw inline to help.  

Day 1

 This is not really going to be Day 1, but it will be the first post.  I have been wanting to get my HAM license for decades.  As a teenager I worked at a Boy Scout summer camp out in California.  My first summer on staff, I bunked with someone who had their license.  Throughout the years, and I most recently caught up with him late last year, he has encouraged me to get my license.  

About 10 or so years ago, I was all ready to go to study and do it.  I bought a nice little handheld, a Yaesu VX-8DR.  I played around with it trying to find something to listen to.  I never really got out of the house with it and at the time I was living out in the sticks.  Rarely did I catch anything and I never truly found the energy to study properly.  This year I had friends who were planning on attending Defcon.  This is the annual Hacker convention in Las Vegas.  I hadn't been to it since around 2000 and had heard that it had changed quite a bit, least of which was the price..yikes!   Anyways, I hadn't seen these friends in like 10 years so I made the effort and went.  I found that they had a thriving HAM Village and one could take their exam there for any, or all,  of the currently 3 levels of licensing.  So I made the decision I was going to make that my priority outside of hanging with my friends.  And I successfully passed the Technician exam. 

I was legal to transmit on certain bands and frequencies...but now what?  Well, with all the studying and reading and listening, I learned about how people are using their licenses out there.  POTA, SOTA, Contests, all the digital stuff.  There were many things to explore.  I really want to do POTA (Parks on the Air).  It's an excuse to get out of the house and go to beautiful places and do technical stuff.  That's really what it is.  You go out to a State or National park.  There is a list of them that are port of this activity.  You setup your portable radio and antenna and you try to make a bunch of contacts with folks all over the place.   This sounded like fun.  Not a lot of small talk needed, just the initial contact, an exchange of signal and location information, and that is it.  An excuse to get out in different places and test out different antenna setups and make the electronics work in a rugged location.  So that was my goal to begin with.  Get setup and get out and participate in POTA.  I also want to do other things, but this was the big one besides getting my home setup figured out.

So, to do POTA, you just have to be able to make contact with others from out in the wilderness.  This means being able to get long distance.  The 10 meter privileges you get with the Technician might be able to do some of this, but that band is not the best right now.  If you really want to get out 20 or 40 meter is where you want to be from what folks are saying.  In order to talk on those you need a General license.  So I studied and last weekend I passed that exam.  And now I am studying for the Extra license becuase...why not?  The General license gives access to most of the frequencies available to amateurs so it really is all you need.

I will be writing posts going into detail on the various components I am using or trying.  My successes and failures as I will be not just buying items but trying to make some.  For now, I'll just go through what I have and am playing with right now.  

One of the first things I did was to purchase a radio capable of doing the HF bands.  I don't have a ton of money to throw at this right now so I went to the used market and went for an older radio.  I found a Yaesu FT-840 that was within my budget and looked like it was in great condition.  I will do a post about the modifications I have done as this was mostly stock and there is a resistor modification that is pretty much a must to do.  But as of right now, I have not really used this radio.   The radio alone isn't enough but it will get me from 160m up to 10m on 100w.  It doesn't have all the fancy newer items like a waterfall display or digital mode (it was made in the 90's), but there are some things you can do to bridge the gap.  And ultimately, I was to primarily just make contacts.

You need power so I stuck with the Yaesu gear that was lined up with the FT-840 and got a used FP-800 power supply.  Again, great condition as far as I can tell.  I also got a MFJ-941E Versa Tuner II.  This is a manual tuner which makes it cheaper than the alternatives and more than sufficient for me to begin with.  Learn first, then get fancy and lazy later. heh

I've since also picked up a dummy load so I could test my radio without hooking up the antenna.  Speaking of antenna's.   Antennas are where things get complicated.  That actually gets easier when you get out into the wild, but for my home....  First i live in a HOA controlled area.  I can't just throw an antenna up on my house and be done with it.  I'll go into details on this as well later but for testing purposes, I'll be looking to do what I'll be doing to some degree when I go do POTA.  I bought a mast to be able to get the antenna wire up high, and I bought a End-Fed Half-Wave antenna, specifically I purchased a 100w Variable End Fed Half Wave Antenna from Xtenna.  This is going to be one of my POTA antenna's but it gives me a lot of flexibility initially.  For a mast I purchased the Explorer POTA33H Heavy Duty Portable 33 ft Telescopic Carbon Fiber POTA Mast from Gigaparts and a Messi and Paoloni PotaFlex 7 20' Coax Cable.  I'm not going to be making any 33' tall masts anytime soon and you need a quality cable and I'm not capable (yet) of making one.

So that is my initial setup.  I have a couple things that are accessories to help put all of that together, but I am hoping to put it all together this todnight/tomorrow if weather permits and get on the air for the first time with this rig.  I have been on 70cm with my VX-8DR a few times.  Just not enough power for transmitting out of my house so I'm getting a new VHF/UHF radio.  So I'll document that as well.

Before ending this post, I wanted to mention a few of the projects related to all of this I plan on documenting.  I am really enjoying watching reading what others are doing for home brew type setups.  The cheaper the better.  So, the first antenna I made I made twice and both were horrible.  It was a 2m/70cm antenna.  I plan on making a 3rd attempt once i get a few more things in line.  It requires precise measurements and the materials you use matter.  I have all the parts to make a 10m dipole making use of some pvc pieces.  I have all the material to make a bunch of counterpoises.  I plan on putting up a dipole or two in my attic space. I don't have a lot of space up there but I should be able to put up a 10m and 20 m dipole setup.  As it cools down here (I'm in Arizona), I plan on cleaning out my work area in the garage and making it livable.  There is a perfect place there for a shack so I'll be getting that all setup.  I'll be able to run cables up to the attic for those antennas and one or two outside.  I have figured out how to setup an outdoor antenna here that I think will be stealthy enough to not get me in trouble with the HOA.  Time will tell. 

I am far from an expert on any of this.  I'm still learning and that is the point.  I'm not going to have expensive gear unless that really is the only way to do things properly...and then I have to have the money to do that.  So expect this blog to cover me stumbling through this new adventure.  I'll also try to document the HAM related events I attend.  I have joined local groups and am starting to participate in various events.  It is another great way to learn all of this.  There are a lot of people with a ton of experience.  Your local HAM operators will have knowledge on things unique to the area you live.  

Anyways, if you happen to stumble across this blog and find any of this interesting or useful, let me know.  If you are on the air, keep a ear out for K7STY.  73