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Author Topic: T7B06  (Read 1039 times)

W1VT

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RE: T7B06
« Reply #15 on: June 25, 2019, 10:04:31 AM »

The ARRL publishes test reports in its membership journal QST,  which is available online and in paper form to its members.  Its policy is to only publish reports of legal transmitters available to its members.
« Last Edit: June 25, 2019, 10:15:28 AM by W1VT »
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W9IQ

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RE: T7B06
« Reply #16 on: June 25, 2019, 10:16:10 AM »

I like Zack's response - QST is a good resource.

Remember, amateur radio transmitters do not require certification (thank goodness!). But if you would like to review other certification artifacts, search FCC.io.

- Glenn W9IQ
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- Glenn W9IQ

God runs electromagnetics on Monday, Wednesday and Friday by the wave theory and the devil runs it on Tuesday, Thursday and Saturday by the Quantum theory.

N8AUC

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RE: T7B06
« Reply #17 on: June 25, 2019, 11:47:43 AM »

It is important to note, that the Amateur Radio Service is the only licensed radio service where station licensees are legally allowed to design, build, and service their own equipment. All of the other services required a licensed tech with a commercial license to repair and maintain their transmitting equipment. You will notice that requirement in the FCC rules for part 90, part 95, etc.

That is the reason why many of our bands are harmonically related. If a ham really screws up, and builds a poor quality transmitter that radiates a lot of harmonics, odds are that the only people he will adversely impact are other hams. This is also why our rules and regulations do not require certification of our transmitting equipment, but the rules do state what the technical specifications must be regarding suppression of spurious and harmonic content. If you are going to design and build a piece of transmitting equipment, you have to know what the specifications are, to which  your equipment must conform.
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N8AUC

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RE: T7B06
« Reply #18 on: June 25, 2019, 12:19:59 PM »

Having a green light to ask questions pertaining to exam questions, here's one.

The answer is: "Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel" as your neighbor's.

On the answer's face is found logical.  Yet, would a newbie know what actions to take solely on this answer (and yes there are clubs for these issues).  Filtering is something that requires a much greater knowledge than to assume the transmitter equipment is the culprit.  Doesnt modern transceivers already have filters integrated into its circuitry to counter harmonics?

My point here is, hasnt interference issues been solved and propagated, excuse the pun, in modern equipment over the decades into modernity, and not an issue any longer?  Plus, HOA's are prevalent with restrictive, oppressive rules of "hideous" external radio tower antennas and mega power transmitters to eliminate potential Hammers.

HOAs are irrelevant to the discussion. Their regulations are usually based on aesthetics, and perceived property values, rather than any technical qualities.

As licensed hams, we are expected to know how to operate our equipment without causing interference. If you don't know how that is done yet, keep reading and studying.
Even though our equipment is better than in the past, operating that equipment improperly can still cause emission of spurious signals. We are required to operate our equipment in a manner that minimizes to the greatest extent possible, the generation and radiation of spurious signals.

With all that being said, consumer electronic equipment is designed and built to provide a specific function, at an economically competitive price. Resistance to external sources of electromagnetic interference is seldom a design goal in consumer devices. As such, it is usually susceptible to many sources of outside interference, not just us. The part 15 regulations govern consumer devices, yet most consumers never read those rules, and often don't even know they exist. You would do well to read and understand those regulations as well.

The bottom line here is this. Keep your signal clean, and within the frequency bands for which you are authorized, and be able to prove it. If the owner of a part 15 device still experiences interference, chances are it is because they bought a poorly designed device that is incapable of rejecting signals it was not intended to operate upon.
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K7MEM

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RE: T7B06
« Reply #19 on: June 25, 2019, 01:56:37 PM »

Sounds like you are going to be a lot of fun on the forums.

I hope so.  I want the opportunity to learn the culture of the ham community, and importantly, I understand my history of cannon ball jumping into the fray, and I understand why some will have objections of how I do that.  That's me.

This is not the public pool, so you are welcome to cannon ball all you want. You will not be the first, and you will not be the last.

You will find that the ham community is very diverse. There are those that like the social aspect and belong to clubs. Within that group you will find a lot of teachers who's intent is to help new/old hams learn and understand. Although, sometimes learning and understanding doesn't happen at the same time. There can be years between the two.

Then there are those who are not especially social. Like myself. I have been working with radios for a long time, but have never wanted to be in a club. I prefer working by myself. I worked for the same company for 35 years. Most of that time, I was alone in a temperature controlled lab, with no windows, cipher locks on the door, breathing carefully filtered air. Sometimes I wouldn't see another person for weeks. I loved it, but not everyone would thrive in that setting. Outside of the lab, I like working CW, some digital modes, designing, building and other aspects of Amateur Radio.

And, of course, you are welcome to choose the parts of Amateur Radio you like.

The bottom line here is that there will be those who see themselves as guardians and want to police interactions based upon their sanctimonious notions of what's kosher.

Aren't you getting ahead of yourself a little bit? Your new to the hobby and you already think that everyone is against you and wants things their way. If your looking for a fight, your probably in the wrong place. For that you need to go to the Audio or Photography groups.

I question the licensing process because of this, but I desire the understanding of regular folk who ride the wave instead of trying to stop it.  For me to get there I understand there are going to be issues of my intent and ignore the character.

You can question the licensing process all you want. The FCC has a email address and you are welcome to keep them up on your thoughts and ideas. But the process is not going to change any time soon. I was first licensed in 1965. At the time the licensing process was very different. The actual test question were not known, and your study material only gave you a vague idea of what was on the test. The VE (Volunteer Examiner) system did not exist, so a prospective ham had to travel to a FCC testing station. I'm pretty sure the FCC testing station was always covered in snow, and was up hill both ways. There were more license classes, frequency allocations were different, and proficiency in Morse Code was a requirement.

But over the years, things have changed. Sometimes for the good, some times not. But it does indicate that the system is changeable.

When I read some of the questions in the exam pool, coupled with watching YouTube to see some just memorize 35 answers and dont care of the process, I find that as degrading the intent of the license.  That is NOT me.

Personally, I don't watch ham made videos. While I applaud their use of the media, hams can make some of the most boring videos I have ever seen. But that is just me. Others seem to like them.

You can approach the required tests any way you like. The exam pool has been available to the public for a very long time. IIRC some time in the early 80s the question pool was released to the public. The exact date is unimportant now. However, if someone chooses to memorize the test questions, they can. Once they have their license and are on the air, the issue of how they obtained it is mute. Or, they can actually learn the material and grow. Either way, they wind up with a license.

Like I said before, the real learning does not happen, until you actually pass the test and get the license. That's when you learn to love it or leave it.
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Martin - K7MEM
http://www.k7mem.com
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