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Questions tagged [united-states]

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

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3answers
64 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 ...
2
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2answers
43 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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1answer
101 views

Why does the 60 meter band have special operating characteristics?

Why does this band have special operating characteristics and what do they mean.
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2answers
40 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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3answers
154 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 ...
4
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2answers
130 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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1answer
55 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 ...
1
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2answers
95 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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1answer
139 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 ...
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4answers
58 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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3answers
135 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
111 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 ...
7
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4answers
2k 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 ...
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3answers
177 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?
5
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2answers
221 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...
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2answers
498 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 ...
7
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4answers
177 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 ...
1
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0answers
115 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
93 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 ...
2
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1answer
66 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 ...
5
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3answers
111 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
153 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 ...
13
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3answers
253 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 ...
3
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3answers
95 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 ...
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2answers
46 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.
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2answers
81 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-...
5
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3answers
416 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 ...
6
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2answers
358 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 ...
1
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2answers
65 views

How to log contacts when mobile?

I'm just about to get on the air for the first time as a ham. It's been my understanding that it's good to log contacts with call sign, frequency, signal quality, and time of contact. However, for ...
3
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1answer
48 views

Digital networks — operator at control point, or automatic relay?

I've recently (part of studying for Extra license exam) learned about "mesh networks", where it's common to use repurposed wifi routers to connect at 2.4 or 4.8 GHz and form a network over a much ...
0
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1answer
37 views

Sending a downloaded file on digital: third party communication?

This came up in comments on this question. Since before the Internet was widely available, it's been common to pass along files received from other users or downloaded from a server somewhere. For ...
4
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3answers
314 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 ...
4
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1answer
81 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 ...
5
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1answer
134 views

Signing of messages transmitted over ham radio

FCC Regulation 97.113 (a) 4 states that: "messages encoded for the purpose of obscuring their meaning" Are "Prohibited transmissions", I believe this is the clause that is used to prohibit ...
4
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1answer
254 views

What are Radio-location Services in the 1.9-2.0 MHz range?

I'm currently studying for the General Exam and in looking at charts of the new frequency privileges have run across a restriction I would like to have further defined. In the 160 meter band the books ...
3
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0answers
76 views

Can anybody identify an appropriate radio for this game? [closed]

Complete radio ignoramous here. I've been playing a game called The Blackout Club, and I'd quite like to make a 3D model of a radio set for it. The game is set around 2007 and, as in the picture ...
0
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3answers
125 views

Why do some of the amateur radio license names imply something different than what it actually is?

I am asking on behalf of my friend who is not on this site. My friend wants to know the nomenclature behind the licence Amateur extra, since they think that that term is misleading. I think my ...
1
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1answer
137 views

What devices are able to decode the EAS SAME headers, attention signal, and encoded marker?

When I was watching television, especially when I was younger, I sometimes heard a loud noise, followed by either a test message, or a genuine emergency broadcasts, like an Amber alert. The first ...
6
votes
1answer
124 views

What happens to your callsign if you migrate?

If, as an amateur radio operator, you're licensed in one country with a callsign, let's suppose, the US and you migrate to, say, Germany, will you have to reapply and obtain a new callsign? What if ...
0
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3answers
72 views

Voltage Converter for Amp

I have a chance to get a 1 kW amplifier with a 220V plug dirt cheap from a friend of mine, but I only have a 110 outlet. The 110 outlet is on its very own 20A breaker with no other outlets. Could I ...
0
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2answers
153 views

Amateur wanting to re-enter ham radio legally

I'm an Amateur Radio enthusiast from way back; mostly CB and 10 meters. I have a couple of hand-held Baofengs that I want to use for family communications and as a backup link in case of emergencies. ...
5
votes
2answers
384 views

Yagi vs Parabolic Dish for 2.4GHz Campus Wifi from 1,800ft away?

My apt balcony is 1,812 feet exactly from my campus's Wifi access point behind a triple pane, brick, 4th floor building window. There is a clear line of sight. I was interested in seeing if I could ...
5
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3answers
379 views

Unlicensed TV broadcasting power limit (Band I)

I'm curious what is the legal limit for unlicensed TV signals being transmitted on the VHF Band I? This seems ill defined. The part 15 FM rules I am assuming don't apply here. And I don't think it ...
8
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1answer
194 views

How to clean up profanity on airwaves

We have a repeater here in Southern California (Sylmar K6GE 147.435), and no matter what time of day or night there are a great many operators spewing tremendous profanity, disrespect and meanness ...
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1answer
204 views

Is it legal to transmit scrambled or encrypted voice via SSB on ham bands?

And also, can anyone tell me how? Using Arduino or any other way ...
3
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2answers
85 views

Mobile 2m / 70cm dual band with aviation frequency TX capability

Forgive what may be a basic inquiry from a new enthusiast. I am new to amateur radio, just barely passed Technician and General tests. I am also a pilot and have an RR class licence. I believe that I ...
1
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1answer
83 views

What are the differences of ham radio procedures compared to military or public safety procedures?

After reading the commentary in this question and its answer, it's apparent that ham procedures/norms/protocols/etiquette are substantially different than military and public safety radio procedures. ...
9
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3answers
325 views

Why does ARRL license examination procedure preclude students from discovering what questions they got wrong on licensing tests

I got my Extra-class ticket some time ago. I was able to discover what my score was (the number of questions I got wrong). However, my examiner was not able to tell me specifically which questions I ...
1
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1answer
289 views

2018/2019 proposed expansion of technician privileges

I read that arrl is petitioning the FCC to expand the privileges of the technician license. Can you summarize those changes with the schedule?
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3answers
341 views

What kind of ham radio license should I get?

I have an interest in studying and researching how radio technology can be used in other fields of electronics. What kind of license should I look into so I can carry out some experiments or research? ...