Questions tagged [united-states]

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

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1
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0answers
74 views

what frequencies can i transmit on without a license in NM? [duplicate]

thanks for the answer i love ham radios.
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2answers
133 views

Linkable lists of call signs in a specific zip code

I've been trying to build a ham related website. I'm looking for a list of call signs. Here's the trick: I need the URL to change based on the zip code. I want to be able to put the link on a page, ...
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2answers
279 views

What is the legality of data modes over UHF/VHF in the US?

Cheap & simple transceivers are readily available online that allow you to transmit serial data over UHF/VHF frequencies such as 433MHz (approximate range of 1000m). It seems that these are ...
4
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2answers
212 views

Wireless temperature data logger in the USA on 433MHz

I'm a newly licensed ham tech. I am trying to figure out if I am doing everything correctly to setup a wireless temperature monitoring station that uses the 70cm band (specifically 433.4MHz) in the ...
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3answers
396 views

Weird Harmonic Issue on Raspberry PI FM Transmitter

So I talked to my neighbor about my Raspberry PI, harmonics and his emergency radio. He told me to fire it up, as we saw the FCC sticker on it, meaning it is in compliance with Part 15. I started my ...
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1answer
109 views

Legality of relay through a scanner in the US

I would like to know if it's ok to transmit amateur radio frequencies via my HT through a Bearcat police scanner to someone that has an FRS radio, and in turn they respond on their FRS radio which my ...
5
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1answer
147 views

How strictly is “the end of each communication” defined for the purpose of station identification?

I often hear people say brief statements or sentences after giving their callsign for the final time. Examples that I have heard on the air are: "[callsign] clear" "[callsign] listening" "[callsign] ...
6
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2answers
288 views

Who should announce the call sign when an unlicensed operator is transmitting?

If an unlicensed operator is operating phone on an amateur frequency under the direct supervision of a licensed operator for, say, longer than ten minutes, should the unlicensed operator say the call ...
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6answers
2k views

Can I talk 2 Meter VHF across the United States

Can I talk on 2 meters from the east coast to the west coast without using repeaters?
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2answers
144 views

How to get professional or official clarification of FCC Part 97 rules for specific complicated situations?

I'm specifically focusing this question on methods to get official clarification where one doesn't currently exist. I am not asking this audience for interpretations. As part of my volunteer work ...
3
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1answer
2k views

Is Part 90 certification something an amateur radio operator should look for in a radio meant for amateur use?

I'm checking out cheap (~$100) mobile radios on Amazon, and often times there's a question asking about FFC Part 90 certification. As an amateur radio operator looking to use a radio for amateur/...
4
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1answer
250 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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2answers
884 views

Can you request a vanity call sign when passing the exam?

In the US, just after passing your exam for Technician, General and/or Extra if you didn't have a call sign to begin with, can you request a vanity one right away or do you have to wait until one is ...
8
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2answers
250 views

Why is this requirement in 60m in the US?

According to the FCC, if you are using an antenna other than a dipole, in 60 meters, you must keep a record of the transmission and gain of the antenna. I don't remember seeing any other requirement ...
2
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2answers
222 views

Section 15.23 “Home-built devices” No license required… to build? Just to Transmit. But…?

Title 47 › Chapter I › Subchapter A › Part 15 › Subpart A › Section 15.23 Home-built devices §15.23 Home-built devices. (a) Equipment authorization is not required for devices that are not marketed,...
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1answer
180 views

Recommendation for noob

I don't yet have any radio equipment but I find this hobby interesting and would like to learn more. I'm looking for something that isn't too basic and will keep my interest without spending too much. ...
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3answers
518 views

Resort FM radio station

I stayed at a resort in the U.S. recently that is located in an unpopulated area with virtually no radio reception. To fill the gap, the resort has its own FM station that can be heard only within ...
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1answer
510 views

Should I upgrade to Extra Class [closed]

I've held an Advanced Class license for almost 20 years now. I've recently been kicking around the idea of biting the bullet and upgrading to Extra. I know they lifted the code requirement. Part of me ...
5
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2answers
4k views

How often are we required to send our callsign?

Amateurs on the radio and online tell us we MUST ID at the start of our transmissions. A couple of hams on 75m sometimes take me to task for not saying my callsign right away. 'The FCC says so'. Is ...
3
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1answer
127 views

What are FCC/Industry Canada certification requirements for amateur radio related products?

I know for part 15 licensed devices, there's special FCC certification, and something similar on the Canadian side. What about for amateur radio transmitters? They follow part 97 laws, and it's the ...
6
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3answers
655 views

License upgrade doesn't extend term of license?

I just upgraded my license to Extra about a week and a half ago, so perhaps I'm supposed to know this. The FCC database shows my upgrade to Extra, but the expiration date and callsign haven't changed....
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3answers
258 views

Easy way for an uncertified hiker to broadcast a distress signal

I am wondering whether shortwave can be used as an effective distress call for a hiker who is a non-ham operator. More specifically, Are non-certified operators permitted to broadcast distress calls ...
3
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2answers
809 views

How do I apply for a vanity callsign online?

ARRL indicates that you can apply for vanity callsigns online by "by connecting to the FCC's web site[ and clicking] on the icon entitled “Online Filing LOG IN”". I can't seem to see any mention of ...
6
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3answers
695 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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1answer
367 views

Use amateur radio frequencies for commercial purpose

Can I use amateur radio frequency for commercial purpose (after acquiring ham license), expecting that it would be congestion free band and give me good broadcasting performance compared to other ...
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2answers
1k views

I upgraded from Tech to General and renewed at same time but my license still says Tech

Last week I upgraded and renewed my license at the same time. I did this by returning the form through W5YI. The form was complete with authorization of the upgrade by my local VEC. The problem is ...
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3answers
469 views

legal - Do FCC regulations only apply in U.S.A?

I currently do not live in the USA. I would like to find out if I still have to abide by FCC regulations.
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2answers
1k views

Is there any downside to getting a vanity callsign?

I just got my HAM license, and I have been thinking about getting a 1×3 vanity that I can remember more easily. This question is partially in reference to this passage on the FCC site: A club ...
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2answers
152 views

V/U Packet Rate Limits

I'm studying for the General exam and I've encountered some questions about maximum baud rates on various bands. They seem... extremely optimistic. Given the trouble I've had investigating 9600 baud ...
5
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2answers
352 views

What are the requirements of the address given for a US licence?

I'm going to be visiting the US soon (I live in the UK), and since I've heard it's very easy to get a US amateur radio licence and it's something that could be beneficial, I thought, why not? I see ...
6
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1answer
1k views

Can I use a Hawaiian call sign on the mainland?

A ham is initially licensed in Hawaii as KH6ABC (example only). If he subsequently moves to the mainland, can he keep his geographically restricted "KH" call sign or must it be changed?
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4answers
1k views

Is it legal to broadcast an FM radio signal with a Raspberry Pi Zero?

I saw a video lately where someone soldered an antenna to a Raspberry Pi Zero and broadcasted radio signals. https://www.youtube.com/watch?v=GXedC5dQyNk&t=9s They said they were not worried to do ...
2
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2answers
142 views

Laptop screen goes blank when transmitting from handheld within a few feet - sometimes

I noticed that when I transmit from my handheld Baofeng Radio, with the standard rubber duck antenna, that my laptop screen goes blank. This only occurs if I'm within a few feet, and even on powers ...
5
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1answer
97 views

What rules govern robotic teleoperations, when the remote device also transmits back telemetric information?

I was looking through the FCC part 97 rules for robotic teleoperation, and it cites a one-watt figure for "model craft". However, it also allows higher power transmissions for remotely operated ...
10
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1answer
349 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?
2
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1answer
461 views

What are the FCC's bandwidth restrictions for the various amateur bands?

Does the FCC restrict how much bandwidth an amateur radio operator can transmit? I've seen restrictions for transmitting data, like packet and ATV, but, for example, could I legally use a huge ...
9
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1answer
252 views

What is emissions designator “E” when used as a type of modulation?

The FCC's rules regulating amateur radio, in 47 CFR 97.307(f), paragraph 8 defines one emissions standard/limitation as follows: A RTTY or data emission having designators with A, B, C, D, E, F, G, ...
6
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2answers
796 views

What “test transmissions” are allowed above 51MHz?

The ARRL's band plan chart includes the following text in its legend: Test transmissions are authorized above 51 MHz, except for 219-220 MHz What FCC regulation is this referring to? Aren't all ...
4
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1answer
208 views

Expected practices for one ham operating under another's privileges?

I understand that in the United States, amateur operators and even non-licensed persons may participate in domestic (and approved international) communications on bands they wouldn't normally be ...
5
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2answers
144 views

Air gapped digital communications mode on VHF?

According to this question MCW (modulated continuous wave) is allowed on large portions of the VHF bands in the U.S. Is using MCW suitable for passing small amounts of digital data between 2 PCs or ...
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1answer
84 views

Geting my Tech Licence again

Back in the 90's I received my Tech license. I let it expire. Now many years later and I have the time (Retired) I would like to get back into Ham Radio. Do I need to take the Tech exam again? Or If I ...
8
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4answers
33k views

FCC tracking of unlicensed FRS/GMRS transmissions

If a transceiver such as the BaoFeng UV-5R is used to transmit over FRS/GMRS frequencies (unlicensed), it is illegal in the United States due to FCC regulations that state that the power must be <0....
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4answers
897 views

Max legal power with nearly zero BW

I'm developing a type of ground penetrating radar that does not use pulses. It's extremely narrow bandwidth. As narrow as a good crystal can get it. The frequency I'm shooting for initially is ...
12
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4answers
10k views

How To Join Packet Radio BBS

I'm a complete newbie here, and on the Southeast Coast of the USA. I don't even own a ham radio yet. Some preppers and I got to talking about a dystopian time of Internet collapse where shortwave ...
7
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5answers
24k 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, ...
2
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1answer
325 views

How Are US Call Sign Location ID's Assigned?

If I take my license exam in California, but my residence is in New York, would my call sign still reflect the New York location?
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3answers
229 views

TXing on another frequency to provide aid in anothers' emergency

By the FCC rules, if you are in an emergency situation and it's your best chance at survival, you're allowed to TX on any frequency. But what if you're hiking and are monitoring the Search & ...
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1answer
177 views

Remote base identification

I have a remote base where stations can log in with DTMF touch pad. Does this remote base transmitter need to send out a CW ID?
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2answers
294 views

Scanner radio purchase advice for someone that's nosy but not technological?

If it sounds like a stupid question, it probably is. My mom loves being nosy... When she hears the police siren, an ambulance, firefighters, or something like that, she's the first one to run to the ...
5
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1answer
320 views

How can I know whether a radio is FCC approved?

I'm considering buying a new HT radio (Hong Ying HX-860UV Handheld) from China. The company says the model is approved by the FCC. Since I can't see it in person (only a photograph), I can't confirm....