Category Archives: Amature Radio

September?

Okay, I confess, I have been one lazy blogger this year. There are a number of reasons for the lack of posting, but a lack of things to post about is not one of them. Trying to finding my voice for this blog is the main reason I haven’t been posting much. Another is that we have been flying under the radar on some personal matters.

Let’s begin with the former, shall we?

Voice

A blog must have a distinct voice of its own for it to be ‘successful.’ At least that’s what I have heard. In part, I guess my dilemma is that I’m not sure what I want the blog to be, how to gauge success, or what I would even consider that to be.

As the name FlyBoyJon implies, I am a pilot and the early intent for the site was to chronicle the journey of an adventure pilot. Something that I work on for several years was a series of adventure flights. Sadly those plans fell through and with them the aviation adventures I had intended to blog about.

Over time life has impinged on my flying to such a point that it has now bee quite some time since I took to the skies. This is something that nags at me far more than I often let on. There is nothing sadder than a grounded pilot.

Itching to get back in the air I had begun an experimental aircraft build project. Once again life stepped in. I ended up going back to school to get my FAA mechanics license and a degree in Aviation Maintenance Technology. A good thing to be sure, but it made me seriously rethink my choice in aircraft for the experimental build. Something I do plan on getting back too.

Further keeping me from aviation posts here was the decision to separate my personal aviation from business aviation. I added a domain for my professional aviation work. And once again life has a way of changing plans. My professional aviation pursuits have also been tabled for the time being.

By now I bet this is sounding rather whiny, it is to me. Believe it or not, I’m not complaining. It’s just the way things have gone down. I’m no spring chicken and I’m not loaded with disposable cash so some things just have to wait and I’m okay with that.

A long-time interest that resurfaced during mechanic school was amateur radio. I finally got my ham license and rose through the licenses and started volunteering as an examiner for license tests. Ham radio is a specific, narrowly focused interest though and it required another blog, and domain all its own. I also ended up getting a commercial radio license with hopes of it being of use in my aviation pursuits.

My wife and I also have a personal site. For a long time, it was a personal journal and email site, then a genealogy site, and later back to just an email host. Now it is our online business site.

We currently have five domains with three active sites. The two inactive ones being for commercial interests. With all of these domains and sites and not much going on in my aviation world I just didn’t know what to do with this site. So I’m back to Voice. What is the voice for this site?

Land ho!

As to the second matter, flying under the radar… That has to do with our future planning. All things tallied up, there is no way in hell we will ever be able to retire if we stay in the Greater San Francisco Bay Area. That’s like 10 counties of no-way-in-hell.

To be brutally honest, I have really grown to hate California. The legislature seems to collectively suffer from cranial-sphincter insertion syndrome and has a nasty habit of passing really bad legislation. The urban sprawl has become grossly over-populated, the economy sucks, and it’s just too damn expensive. It has also become very difficult to find any meaningful work here that would make staying viable.

With California not making much sense for us, we decided to look for some rural property in southern Oregon. Back in June, we purchased a two-and-a-half acre lot outside of Bonanza, Oregon, about 30 minutes northeast of Klamath Falls. As crazy as it sounds, we still haven’t made it out to look at the property. We were in KF in May and had planned on working with an agent based in Bonanza. After several ‘scheduling issues,’ we dropped the agent and came home. I wasn’t happy with the outcome of the trip and was feeling frustrated and generally in a funk when we came across this lot and jumped on it.

I had a good feeling about this property and Tammy had an uncharacteristically neutral feeling about the whole thing, almost zen like. When it comes to buying a rural property, that’s about as in sync as I think we could get. Since then we have both been gearing up for the big change physically and emotionally.

So when will we be moving up north? Who knows. We have been paying off the land, which is just that, land. I will need to build the homestead. I do want to get up there fairly soon because I don’t want to be 60 trying to build a house, but we aren’t in a huge rush. We need to bank some materials and resources, most likely find a gig for a year or two, maybe longer, or get really lucky with some online work. We certainly don’t want to try and move or build during the winter so it will be a spring or summer affair in the next year or two.

This kind of planning takes a long time. I had been studying a lot of building, farming, and permaculture subjects for over five years to get to the point where I was ready to make this happen. This has been a long time in the making.

So why haven’t I been blogging any of this? Ther has been too much fluidity in everything involved. We have a gig now and we didn’t want to stir anything up with a potential move and no defined timeline for one. We still don’t have a defined timeline, but we are much closer to having one.

One of the reasons I didn’t start posting in June was that we haven’t been able to get up there and do a land and resource survey of the property. It’s tough to make a building plan without knowing where it is going to be seated especially if you are hoping to work with the land and not forcing the land to your will.

What we have been able to do is to start the weather tracking now that we know where the land is, and follow the seasonal trending. We are also going back into the historical weather record for the area. There is a webcam a few miles from the property, but that is of limited use.

Back to the blog and its voice

So what does this have to do with finding a voice? I’m not sure. I have things to say and it’s usually something of an editorial nature on several somewhat related subjects. Mostly in the theological, sociological realms. Really it comes down to, will this be an editorial or journal, or maybe a hybrid? I honestly don’t know at this point. What I do know is that I want to be writing and this is a good place to do that. For now, I’m going to let things flow and see where it leads.

Until next time,
~Jon

New Technician License Class

Ham Class logoThis evening I have a new Tech class starting at 6pm on Wednesdays. I have another Tech class on Thursdays starting August 11th. I thought it was time to add a General license class into the mix as well. It starts August 23rd and meets on Tuesday evenings.

All of the classes are in the evening from 6pm to 8pm and meet for six sessions on the same day of the week.

I hope to be adding some other classes in the near future. Some license classes as well as some special subject classes.

That’s all for now. I have some prep work to get done before class.

73,
~Jon KK6GXG

Ham Class: One Down, Another On Deck

Ham Class logoThe July 8th class went of rather well. I am happy to report that we introduced 5 new hams to the community!

The class went very well and I had a few requests to add a General class to the future class schedule. I’m still working on prepping for that General class, but I do have another Technician class lined up to begin July 27th and running every Wednesday evening until August 31st.

No guarantees, but I am going to try to get the General class on the books before the end of August.

I have been working on the Get Your License pages today. They are finally up and functioning. There is information on how to get a license and what to expect on the exam along with links to other resources.

License Exams
License Classes
Technician Class

Until next time, 73,
~Jon KK6GXG

Tech License Test Prep Class

KK6GXG-MakingWavesJust a short update on getting a Technician ham license for interested locals (Silicon Valley area).

I am teaching a Technician Class license test prep class July 8th, 9th, and 10th (all three days for the one class, see the Class Notice below)

~Jon KK6GXG

Class Notice

We have reached the minimum number of participants for the 7/8 – 7/10 Amateur Radio Technician exam prep class to take place. Below is an overview of what you can expect. I know this is a long email, but please take the time to read it thoroughly .

Class Sessions

This class meets over three days and will review all of the information needed to pass your FCC Amateur Radio Technician Class license exam.

  • Friday 7/8 we meet from 8 pm to 10 pm for an introduction and presentation.
  • Saturday 7/9 we meet from 9 am to 5 pm for the main portion of the class. There will be a 1 hour lunch break.
  • Sunday 7/10 we meet from 9 am to 3 pm for a wrap-up and test review before the 1 hour lunch break. After lunch we will finish the review followed by the exam.

Materials

I use the ARRL Ham Radio License Manual as the student manual and study guide. Each student is responsible for obtaining this manual BEFORE the class begins. Students are expected to read the manual before the class begins. Make notes on your questions as you read through the manual so we can go over them during the class. This is just a cursory reading, don’t dwell on anything too much. (The manual is NOT included in the class fee)

Links for online purchase of the manual
ARRL – http://www.arrl.org/shop/ARRL-Ham-Radio-License-Manual-3rd-Edition/
Amazon – https://amzn.com/1625950136

Stores that sometimes have copies in stock
HSC Electronic Supply (Sunnyvale) http://www.halted.com/
Ham Radio Outlet (Sunnyvale) http://www.hamradio.com/locations.cfm?storeid=2

Exams

An ARRL Volunteer Examiner team will provide testing on-site after the class.

The VEC testing fee is NOT included with the class, so you will need to bring $15 cash for your exam, please bring exact change.

The VE team does NOT accept credit/debit cards.

The Small Print

Each class requires a minimum of 5 students enrolled for it to take place. The minimum number of students must be preregistered at least 5 days before the start date for a class or the class will be canceled.

If the number of registrations drops below the minimum due to student cancellations BEFORE Tuesday 7/5, the week of class, it may be canceled.

In the event of a class cancellation all student enrollments will be refunded.

Student cancellations AFTER Tuesday 7/5 will NOT be refunded. Student cancellations Tuesday 7/5, or BEFORE will be refunded.

Enrollment

To complete your enrollment email me and I will bring you up to speed (jon at kk6gxg dot com) The class fee is $35.

The FCC

Along with registering for the class, I recommend creating your account with the Federal Communications Commission (FCC) on the Commission Registration System site (CORES) https://apps.fcc.gov/coresWeb/publicHome.do Once you have set up your account you will be given your FCC Registration Number (FRN). This process is free.

Your FRN is used on the Amateur Radio license application (Form 605) and having it before you take your license exam speeds up the process. You will also need your FRN to log into the Universal Licensing System (ULS) http://wireless.fcc.gov/uls/index.htm?job=home and find out what your new call sign is after passing your exam. 🙂

The BitX 20 & More

The BitX

20160618_120709I was fortunate to recently have been gifted a BitX 20 kit by a friend and fellow VE. The kit came from QRPkits.com some time ago, I believe at least a year or so ago.

My intention was to build it for Field Day 2016. Sadly, while I was well on track to getting the radio built, 2 parts were missing from the kit. BS170 N-Channel MOSFETs to be specific. This put on the breaks for the final assembly and stopped me dead in my tracks with the finish line in sight.

20160624_193754I have the parts waiting for me at Jameco will-call for Monday. Once I get them home, populating the remainder of the circuit board should take about an hour. Then its on to the initial tuning and getting the radio packaged up in its housing.

I will do a full project write-up in the Projects section soon, but for now just an update.

A Homebrew Signal Generator/Oscillator

20160622_084953During the BitX build I ran into a small hiccough. The testing at some point calls for the injection of an 11 MHz signal. I would normally use my Lafayette signal generator but for some reason it’s on the fritz so I had to come up with another solution… build an 11 MHz signal generator.

20160622_085219With the crystals in the kit it was easy to build a simple generator with parts on hand and while I only had 1 of the five crystals installed it was easy. By the next testing phase I had installed the remaining 4 crystals. Now I need one for the homebrew SigGen! (click the image for the circuit diagram)

Off to HSC Electronic Supply for some 11 MHz crystals.

This project will also get a write-up in the Projects section soon. This one in in particular has a lot of use in checking unmarked crystals as long as they are between 1 and 20 MHz and is a great foundation piece for beginning builders.

A Homebrew TNC

20160524_145401Before I got started on the BitX I was working on getting my Baofeng 2m/70cm HT on digital. I found a couple of designs for a homebrew TNC and set out to make that work.

Because of the way the PTT key works on the Baofeng I haven’t been able to make the TNC work with the HT but it should work fine with my 40 meter QRPme.com Splinter II and the BitX 20.

A full write-up post is coming on this one too.

Look for all three of these in the Projects section for full details on the builds coming soon.

It’s been a long time since I posted, and most of that time I have been working on non-radio stuff. Now that I am back in the swing of things I have more time for radio stuff so I should be able to post more, and make updates to the Projects pages

As soon as the BitX 20 is up and running I plan on getting the Lafayette working again and get back to the Beach 40 DSB. Another Field Day has slipped through my fingers. I don’t plan on that happening again!

That’s all for now folks, 72, 73, and good night!

~Jon KK6GXG

 

Antennas & More

20150507_192446Today was a good antenna day. I finally got the PVC cover on the 40 meter helically-wound antenna I started back in April. I have been using the antenna without the cover as a test antenna next to the bench but it’s time to get it up on the roofline for some actual use.

By “actual use” I am referring to the Beach 40 project that is back in motion now that I have a VXO that pulls more than 1.8 kHz of selectivity. Yay 148 kHz selectivity! Now all I need to do is get the Tx/Rx switching working for the transceiver to be operational.

20140430_131323Another antenna project completed today is the 2 meter twin-lead J-Pole. This one was also waiting for a PVC cover so it could be mounted on a pole. The original design was intended as a portable antenna but the twin-lead J-Pole on any frequency above 50 MHz lends itself well to mounted vertical use, it just needs a housing to keep it in the vertical position.

This little antenna works really well. On numerous occasions I have been unable to ping the local repeaters with my HT with the stock or aftermarket antennas for handhelds. If I attach the twin-lead J-Pole I can actually get out and participate in the nets. With this antenna up in the air at roofline I should have no problems working any of the local repeaters including the packet and Winlink towers.

Speaking of which, I want to get into digital modes once I get the antennas up in the air. I’m not quite up to building a TNC from scratch so I need to save up a hundred and fifty bucks to get digital rolling. Soon…

20151111_145644The other antenna project today was a new-start. When the 2 and 40 meter antennas go up I also plan on attaching a 70 cm half-wave vertical with counterpoise. This one is an experiment. I originally planned on building a 70 cm full-wave twin-lead J-Pole, and I likely still will, but I wanted to see if I could make a vertical with counterpoise that works well. I may even mod this one into a full-wave vertical with half-wave counterpoise radials. Dunno. Like I said, this is an experiment.

Another near-term antenna project, as-of-yet not started, is an aviation band twin-lead J-Pole set up like the 2 meter one. Being a pilot and mechanic, at some point I would like to have either a hangar at a local airport or a small strip at home to work on restorations, so it would make sense to have an AvBand radio in the shop. I have a Vertex Standard (Yaesu) HT for aviation VHF, it just needs an external antenna. I also have a few old radios salvaged from aircraft that would never make it back into an aircraft, but may be suitable for base station operations.

I have a number of other antenna experiment/projects in various configurations, in particular 2 m and 70 cm yagi and/or helical beam antennas suitable for satellite and moon bounce communication. But these are for the future. I also want to build some highly directional antennas for radio orienteering and high-gain narrow-beam antennas for really low power communications.

As for the “More” in the title, once I finish the 40 m transceiver I plan on building a 20 and 10 meter versions. I also have an idea for simple low power beacon transmitters I want to play with. I also want to get set up for QRSS, WSPR, and APRS.

Lots to do. One step at a time.

Till next time, 73,
~Jon KK6GXG

40 Meter Ceramic Oscillator

The Beach 40 saga continues. My original VXO design, well… it stunk. I’m not sure why, but the best selectivity I could get out of it was only a couple of kilohertz, very annoying.

20151104_161508

I have been working on a VFO design to get full band selectivity but in the meantime I came into some ceramic oscillators for 7.2 and 3.68 MHz. The best part is that I replaced the entire Super VXO section with a 140ρF variable capacitor and two ceramic resonators.

20151104_161541

By placing the 140ρF var cap in series with the two paralleled resonators and feeding the output directly into the local oscillator buffer… Ta da! A working  VXO.

This time, instead of a few kilohertz the VXO pulls a full 148 kHz, from 7.173 MHz down to 7.025 MHz. It is certainly not the full band but it is a useable range. Over a five minute period, I noticed a slow 50 Hz drift that eventually settled out to a point where it continued to float ±10 Hz.

20151104_161453

This is not a final solution, but it will work well enough to get this QRP DSB transceiver on the air for testing.

Of course now that I have a working VXO attached to the local oscillator buffer, it’s time to hook it up to the product detector/balanced modulator… success! With the VXO, buffer, product detector chain attached to an antenna it was time for a little listen.

20151104_163742

The audio amp still has some issues as far as power drain off when power is disconnected, but it does fine as an amp. I plugged everything together and plugged the audio out into an external amp so I could tune around without headphones.

Not much on the band, but my frequency generator with a small antenna plugged into it put out enough RF for the receiver chain of the Beach 40 with the temporary VXO to pick up its 400 Hz signal and cross reference the VXO frequency displayed on the oscilloscope with that of the frequency counter connected to the frequency generator. So one could say I have a working receiver, mostly anyway.

Next up: First and foremost I need to get my documentation in order. In particular, I need to get the schematics in conformance with the actual circuits.  After I get the documentation in place I need to get to work on the audio amp.

After the RX stage is all dandy, my attention will turn to the TX/RX switching. I can’t do anything more with the TX side until I get the TX/RX switching squared away.

Anyway, that’s all for now.

Until next time,
~Jon KK6GXG

UPDATE: As promised, the conformed schematic for the VXO/Buffer section…

Ceramic Resonator VXO

Blue ESR Meter

20151103_114924Something great showed up in the post, a package from Anatek with the Blue ESR meter kit.

I have been trying to get an LCD/LED TV set working. I was running into some problems in the diagnostics. Everyone I came across online that does TV work says the  best tool for basic electronics diagnostics is an ESR meter, and the Blue ESR is an affordable ESR solution. As a kit, it’s $80 and worth its weight in gold.

20151103_122349There aren’t a lot of parts, so the kit is fairly simple to assemble. The assembly order is based on parts types, first the 1% resistors, then the 5% resistors, followed by capacitors then semiconductors and so on.

Getting the parts on the board goes quickly. My best recommendation to anyone building the kit is to take your time and be sure of each part and it’s placement.

20151104_095312Once all of the parts are are on the board it’s time to calibrate the meter. Calibration is easiest if you have a variable power supply for testing the low battery indicator, but you can get away without one. The assembly instructions include a simple circuit you can build for this test.

20151104_100108Calibrating the meter itself only requires the two resistors included with the kit for this purpose and the turning of two trim pots. I decided to take the calibration resistors and keep them stashed in the battery compartment for possible recalibration at a later date.

20151104_101648With everything calibrated and running well it’s time to button it all up. After buttoning it all up, it’s time to get back to that TV project.

Although the TV project is still pending, the Blue ESR is done.  More to come on the TV in a future post.

~Jon KK6GXG

Post 201

Profile PicYesterday was an odd day. I suppose it was odd for many Americans for a variety of reasons. The most obvious of course being the 14th anniversary of 9-11, so I didn’t notice that my post yesterday was my 200th post.

For me September 11th has a strangely linked secondary meaning, it was also the day I started my formal flight-school training in 2003, though technically my first flight was April 22nd, 2003. I only had three flight lessons before deciding to go the professional academy route and the next available start date began five months later on September 11.

I always seem to think about aviation stuff on 9-11. Most of the time it is a sub-conscious shift in thought. I don’t even realize I have been thinking aviation until after my thought have shifted. Yesterday’s post obviously was aviation in theme and I have been mulling around a lot of stuff the last 12 hours or so.

When I notice the post being #200 this morning, it got me thinking of the many firsts I have encountered in the last decade or so; first pilot’s license, first college class taken, first instructors license, first aviation class taught, first mechanic’s license, first college class taught, first college degree, first amateur radio license, and my first VE session.

I’m sure there have been many other firsts along the way, certainly many smaller firsts came about as a result of these, but these in particular are mile-stone moments to me. They are all significant events marking recognized achievements in areas I am passionate about. Aviation, and radio, are things that are deeply embedded in my being. They have been a part of me in some form for much longer than a decade.

My contemplations of yesterday and today have been not only a pondering of opportunities and ideas. They have been a review of accomplishments, a review of the goals I have set for myself, how they intertwine, and how at several points I allowed myself to be distracted from the task at hand. Looking back from today’s vantage point, many of those delays were actually necessary. Ether to gain non-related skills, take the time for technology to change, or just let some things ruminate.

FrieslandIn many ways it is analogous to the farmer. Working the soil, providing nutrients, and sewing seeds. As the farmer must wait for the seeds to germinate and grow, I have been doing other “chores” waiting for that germination and growth. Stuff around the farm that may not directly relate to that crop, but still important for the overall operation of the farm. Now it’s time to do the finishing. Harvest comes soon, some will be reaped and some let go to seed.

What I really want to be doing as shifted, reformed, and modified, but those basic goals are still the same. The same as they have been for over a decade. Now I am in a much better position to see them through. Now it’s time to refocus on the finishing before harvest and make things happen.

I like it when an analogy comes together.

Until next time,
~FlyBoyJon

Not As Planned

Well, it’s the 30th of June and there are a few things that didn’t go as planned.

First and foremost, the Beach 40 is still not ready for prime time. The AF amp is still lagging on power-down and I still haven’t checked the PA. Needless to say, the 40 did not make it on Field Day.

Which leads me to the second no-go for the month, Field Day. Not only didn’t the radio make it on-air for FD, nether did I, on any band or mode.

The day job has been keeping me hopping this month and all my free time has been going to studying for my commercial radio license.  I have been running through Elements 1, 3, & 8 heavily for the last couple weeks. The header for this post is my desk piled up with 30 practice tests, 10 for each element.

My general rule for taking FAA/FCC exams is that when I can take 10 practice tests in a row at 85% or better I’m ready to go for the rel thing. As for Element 1, I am up to 10 in a row at 98% average across the last 10.

Now I am working Element 3 at full speed ahead. The plan is to take the Elements 1 & 3 exams some time over the next 2 weeks. While I’m not pushing it, I want to wrap Element 8 by the end of the month.  3 is the “big one” out of the three with 100 questions from a pool of 600 so it will take the most time to study for.

That’s all for now. Time to get back to the studying.

73,
~Jon KK6GXG