Questions tagged [united-states]

Questions specific to rules, regulations, and practices in the United States of America.

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0
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0answers
28 views

General Vs Technician Call Sign?

Is there a distinction between a call sign for a General vs. Technician? I recently upgraded to general, I am curious about changing call sign to reflect license upgrade?
8
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1answer
177 views

Identifying regulations for interfering stations

I'm working on tracking down some 2m repeater interference, and I have identified that the offending signal is a spur transmission on a commercial pager service (that lands right on our repeater input ...
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2answers
65 views

Amateur Radio License classes in Central Iowa

I'm looking for an amateur radio license class in central Iowa, near Des Moines. I've been unable to locate anything through web searches.
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2answers
1k views

Who enacts the FCC's rules and regulations?

I came across an old answer on this site which makes the claim: It would take an act of Congress to change this [FCC Part 97] rule. Is that correct? I was under the impression that United States ...
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3answers
268 views

Testing blind license applicants

My friend is blind and would like to take the amateur radio license exam. I understand that the question and the four possible answers can be read to them, and that is fine. The one question that we ...
14
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1answer
6k views

How do I change my registered address with the FCC?

I just moved, and I want to change my registered address with my call-sign. Is there a form or something somewhere that I can fill out? Do I have to mail it, or can I turn it in to the FCC or ...
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3answers
83 views

How safe is 100 watts on 2-40 meters?

So I have the misfortune of being an apartment dweller. I know that 50 watts is pretty safe as it is what first responders use on 2 meters. Am I really going to have to run around with an analyzer ...
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1answer
113 views

Why does the 60 meter band have special operating characteristics?

Why does this band have special operating characteristics and what do they mean.
10
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1answer
326 views

Why does the FCC put restrictions on symbol rates?

This answer claims that Mostly, on HF, the FCC has chosen to limit modes of transmission and symbol rates rather than bandwidth Why does the FCC limit symbol rates?
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2answers
146 views

If I cancel my amateur license, will my address be removed from the FCC database?

When my university encouraged me to apply for an amateur radio license, they never mentioned the fact that my address would be listed on the public FCC database, for anyone who Googles my name to ...
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3answers
183 views

What Frequencies Are Open To People Without A License?

I am in rural Alaska and I am very far from anywhere that gives Ham Exams. I got a Ham Radio and I want to operate it and talk to people. However, I read that frequencies are not allowed to be ...
3
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2answers
48 views

What VHF & UHF frequencies are important during an emergency?

If something bad goes down (state-wide or nationwide), what frequencies should I be tuning into? I did see this answer, but I have a BaoFeng UV-82HP which cannot do HF at all, so what are my options? ...
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1answer
57 views

To obtain operating privileges after the 2 year grace

I have been under medically supervised treatment for the past few years. I have been on heavy meds. I presently am showing signs of improvement from cognitive issues which were troubling me. I ...
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2answers
114 views

GMRS not transmitting within a half mile

I recently got my GMRS license from the FCC, and I wanted to try out a couple radios for hiking and emergency communication. I have two tenway UV-5R pro radios (these do have an FCC ID) that are set ...
5
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2answers
222 views

Can anyone identify this military radio?

Hoping someone can identify the following military radio. I spotted it at the curb and decided to make it a land-fill diversion project...
4
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2answers
363 views

What is the minimum equipment necessary to get on the air with FT8?

To the extent that FT8 is a way to bring people into the hobby or re-ignite passion among those who haven't been on the air in a while, what's the easiest way to get someone on the air with this new ...
7
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1answer
168 views

FCC callsign with incorrect group letter

I just passed my technician exam and received my callsign from the FCC (KC1KHV). I was surprised by the two letter prefix, which seems to come from the class D group. According to the FCC ...
5
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1answer
147 views

Does the FCC care about electrical arcs?

There are a lot of videos on YouTube from people who have built high voltage sources and are sending electric arcs from one place to another. Although they have no intention to emit radio waves, they ...
21
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3answers
455 views

What is the body of knowledge the U.S. written exams test?

I'm considering getting a U.S. amateur radio operator license. If you want to study to pass a license test, there are many resources to learn the answers to the entirety of the question pool: online ...
3
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5answers
1k views

How do I get a coordinated frequency assigned for my repeater?

I am thinking about putting up a 70cm repeater up on my High School, where they have a very tall roof. By the time It is ready to put it up, I want to make sure a frequency is reserved for the ...
6
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3answers
549 views

How to renew an expired US license as an expat?

I've been living as an expat for a decade, and my extra class license expired a little more than a year ago. I'm currently in Taiwan. Is it possible to renew my license while staying here? Can I do ...
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3answers
143 views

Why are no 2w FRS walkie talkies on the market?

I have read that the new laws regarding FRS radios state that you may use up to 2 watts power, yet I can't find a single 2 way radio that advertises 2 watts power; only .5 watt, or they don't state ...
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4answers
59 views

what is a good way to study for the tech test

I took the test last week but I failed it I was in a program that went through all the chapters but I just very bad at taking tests is there a way to go around the test
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5answers
3k views

Is it illegal to key up and not identify?

So, I key up on a repeater to see if it works, or to see what cool courtesy tone they are using. I don't do anything else. Is it illegal or bad ham radio etiquette to just key up for a second, key ...
4
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1answer
215 views

Can an American licensee operate in Portugal during a visit?

I have an American Amateur Extra Class licence (AC1DM) and I'm going to Portugal for a few days. Can I operate there with my licence? I'm not an American citizen.
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7answers
912 views

Can I transmit anything inside a Faraday cage?

Can I perform any transmission regardless of my license as long as I'm inside an RF sealed enclosure, such that no RF will be detectable from my transmissions off my property? I imagine the answer is ...
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4answers
112 views

Can a foreign student take a US license exam in the US and use that license in China?

The event I'm currently attending hosts Ham exams, and it's kind of likely that the student would pass on first attempt; would it make sense for him to take the exam? Can he just go home to China and ...
4
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1answer
83 views

High-resolution GIS datasets of groundwave conductivity of the United States, besides the FCC?

The FCC publishes a map of estimated groundwave conductivity of the United States, but the resolution is quite low: Are there any GIS datasets that include groundwave conductivity at a higher ...
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4answers
3k views

What fraction of 2x2 USA call signs are vanity calls?

I found out a while back that, as things currently stand with the FCC, if you take and pass all three license class exams in the same sitting, you get a so-called "two by two" or 2x2 call -- two ...
12
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6answers
21k views

Calculating Antenna Length on the FCC Exam vs. in Reality

I have seen the following formulas for calculating half and quarter wavelength antennas: Formula for $\frac{1}{2}$-wavelength antenna (in free space): \begin{equation} \mathrm{Length~(feet)} = \frac{...
2
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4answers
604 views

Amateur Radio Long Distance Data Communication

My friends and I are going off to college ~180 miles/290 kilometres apart. As a project, we are looking into creating a data communication connection between our two schools. Our requirements would be:...
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3answers
212 views

Frequency for UHF hot spot in the US

Approximately what frequency should my UHF Pi-Star be set on in the US? Is there a standard?
7
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5answers
16k views

On which of these frequencies can I transmit without a license?

I have a Baofeng UV-5RA, and I need to know what frequencies on the "channel mode" (what the lady says when you press the "V/M" button on the radio) don't require a ham license. I am in Philadelphia, ...
7
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4answers
186 views

Required SSB sideband and carrier suppression?

Is there a legal (U.S. FCC) or a commonly accepted standard requirement for SSB opposite sideband and and carrier suppression for either manufactured or kit built transmitters? Does the 43+ dB down ...
3
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3answers
4k views

How do I find expiration date of my misplaced US ham license?

I can't find my general class license. I want to apply for a vanity call sign (my call sign when I was 16 years old) but I don't know the expiration date of my current license. Is there some way to ...
2
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2answers
506 views

Can I use my US callsign to transmit while in El Salvador?

I am traveling to El Salvador later this fall, and was wonder if there is any reciprocal agreement that would let me use a US callsign while there? If so, what privileges would I have there based on ...
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0answers
122 views

Mismatched Radios: A Baofeng UV-5R & a Cobra ACXT 645 [closed]

I've got a Baofeng UV-5R and a Cobra ACXT 645, and I'm trying to get them to communicate. The Cobra transmits and the Baofeng (programmed with CHIRP) receives, but not the other way around. I've ...
3
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0answers
96 views

GnuRadio RF transmission, legal and safety issues

I'm trying to run some transmit/receive RF examples that I found online using GNU Radio with USRP B200. I read and heard about some cautions in terms of transmitted frequencies here in the USA which ...
5
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3answers
114 views

Is Field Day a contest?

Is the ARRL Field Day a contest, or is it not a contest? Kindly explain the reasoning behind your answer. A non-ham could not tell the difference.
2
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1answer
67 views

Transferring old callsign to a club?

A new vanity callsign will be granted to me (currently in pending level 2 stage). Can I transfer my current soon to be cancelled callsign (vanity) to a club which I am trustee without waiting the ...
16
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5answers
3k views

Can a licensed ham use or modify CB equipment to work the 10 Meter Amateur bands?

Can a licensed ham use or modify CB equipment to work the 10 Meter Amateur bands? If so, are there any advantages/disadvantages to this?
2
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1answer
158 views

Would a ham license allow me to use an uncertified radio on other (non-ham) bands I have permission to use?

I just purchased a UV-5R to hopefully integrate into business class radios my company uses. Do I need a technician or other class FCC license to operate these only on the frequencies I already access ...
8
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3answers
153 views

Ham Technician Exam Material

I would like to prepare for the Technician exam. I think I read somewhere that the ham Technician exam has material that is revised every 4 years. And that the new set of questions will be coming ...
3
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3answers
96 views

How can I get a license to build broadcast transmitters?

I am in the United States. The title pretty much says it all. I am really into to building transmitters. It's even more fun for me than using them. I really have a lot of skills and would like to ...
4
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3answers
322 views

Is compression “encryption” under FCC regs?

I read this question about digital signatures and FCC prohibitions on "obscuring" messages in amateur transmissions, and it cause me to think of something: the difference between encryption and ...
1
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2answers
83 views

What to do when accidental emission can't be given a call sign ID?

Yes, obviously, it would be best if there's not an emission that doesn't include a call sign ID. Part 97 seems to say this should never, ever occur (the law is often written in that kind of black-and-...
0
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2answers
47 views

How old do you have to be to be a ARES volunteer?

Look at the title for the body because my question is short.
5
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3answers
445 views

Call sign ID for a “homebrew” or improvised repeater?

I saw a couple YouTube videos last night about setting up a repeater using a pair of cheap hand-held radios and, at its simplest, an audio patch cable to connect the speaker output of one radio to the ...
8
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1answer
496 views

What changes are being made to the Technician question pool in 2018?

On 2018 July 1, the FCC's question pool for the Technician class license will be changing. Has anyone written up a summary of the updates or made a list of differences from the previous pool? What ...
6
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2answers
403 views

What are the official Baofeng websites in the USA?

Which Baofeng website(s) in the USA is (are) official (that is, selling genuine Baofeng radios, programming cables, and accessories)? Which "Baofeng" websites are NOT, allegedly selling counterfeit ...

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