35

On voice, use "Mayday Mayday Mayday" at the beginning and end of the transmission. This is only for life-threatening emergencies. http://en.wikipedia.org/wiki/Mayday_(distress_signal) For other emergency situations, like reporting a wildfire that does not directly threaten you, use "Break Emergency" at the beginning of the call. This is a good guide to ...


24

Assuming that you have an amateur radio license makes this easier, but it's quite possible that the UK legal language includes provisions that may be applicable and allow transmission without a license. It depends on the specifics of the emergency in question. I would strongly recommend familiarizing yourself with the relevant definitions in the legal code ...


15

11(2) The Licensee shall only address Messages to other Amateurs or to the stations of those Amateurs and shall not encrypt these Messages for the purpose of rendering the Message unintelligible to other radio spectrum users. From the terms and conditions spelt out by OFCOM (pdf), the UK communications regulator. Alternately, in the license guidelines: ...


11

If you are in the USA, check § 97.113 Prohibited transmissions of the FCC rules. Specifically, (4) Music using a phone emission except as specifically provided elsewhere in this section; communications intended to facilitate a criminal act; messages encoded for the purpose of obscuring their meaning, except as otherwise provided herein; obscene or ...


10

Yes, with some extra paperwork. ARRL has most of the rules for international operating. In the case of a US operator in the UK, you'd be operating under CEPT. You'd need to be an Extra - General licenses are recognized in some countries, but not in the UK. You'd also need proof of license and US citizenship, and a copy of the FCC official notice. Of course, ...


10

You're correct in your understanding about region: given that you're operating in a part of the US that is in Region 2 (there are a few US overseas territories in Region 3), you need to conform to the Region 2 band plan, and not any other. FCC regulation 97.301(b), concerning authorized frequencies, grants the same privileges to a CEPT (non-novice) license-...


9

I'd say these are simply corrupt. Take for example: 210113_163545 144.174 Rx FT8 -17 1.3 1247 J06NQY A68ITS/R R QM30 A68ITS doesn't seem to be a real call, but if it was, it would be a UAE call. The grid QM30 is in the Pacific ocean, about 800 km off the coast of Japan. This is a pretty unlikely combination. The FT8 protocol includes error correction ...


9

210115_114630 144.174 Rx FT8 -17 -1.6 685 SIDE LOBE This is probably the one real one of the bunch, actually! The odds of random noise decoding as a freetext message with sensible English in it are vanishingly small. This was probably from someone who worked someone on 2m FT8, and then after exchanging their grid squares, sent a followup message to ...


8

It is presumed that you were receiving on the 2m band. It appears that you were listening in, using 'repeater reverse' mode. In other words, you were listening in on the repeater's input frequency rather than on it's output. On 'reverse', you would hear all the stations within range. In this case only one station would have been within range. Had you ...


7

If this is something you are interested in on an ongoing basis as a volunteer, then you should look into joining RACES and/or ARES in the US, and RAYNET in the UK: http://en.wikipedia.org/wiki/Radio_Amateur_Civil_Emergency_Service http://en.wikipedia.org/wiki/Amateur_Radio_Emergency_Service http://en.wikipedia.org/wiki/Radio_Amateurs_Emergency_Network ...


6

This is not commonplace. Most operators in the UK get along fine with the 400W limit. Given the path losses inherent in Earth-Moon-Earth - hundreds of decibels - the antenna is a much more important factor than is the power. You need every extra bit of push you can get, but if you're not making it at 400W, 1500W isn't likely to be much better. Remember that ...


6

It is prohibited in the US, with one exception. One is allowed to encrypt commands to an amateur satellite (Send from the ground to the satellite). Aside from that, encryption is prohibited.


6

Unfortunately not in the eyes of Ofcom. While you can restrict the power usage down to 0.5 Watts, the antenna is removable. You'll notice that most of the stuff sold on the high-street will have solid antennas. For the PMR frequency use, as part of the "license-free agreement", apparatus in use must meet the high-street requirements. Worth noting though, ...


6

As a UK license holder operating in the United States, you will be operating under CEPT Recommendation T/R 61-01. According to the CEPT regulations(PDF), it explicitly states that: The CEPT Licence permits utilisation of all frequency bands allocated to the Amateur Service and Amateur Satellite Service and authorised in the country where the amateur station ...


5

On the west coast USA there is a slow CW traffic net that meets each night on the 80 meter band. The rules for this net is nothing faster than 10 wpm. It is a dual purpose net, teaching traffic handling skills and available for those who are not up to the CW speeds for a regular net. The regular CW traffic nets are about 20 wpm on average. So, that is one ...


5

QRS actually means "Please slow down" and is not really defined as a specific speed. So basically what they are trying to do is be as inclusive as possible. When I earned my Novice license in 1971 the speed required was 5 wpm. Then when I earned Advanced in 1977 it was 13 wpm. I am studying now for the Amateur Extra, and am amazed that there is no ...


5

Repeaters take time and money to set up and maintain. Many repeaters are operated by a club or a group - you may want to consider pooling resources with other local hams. Unlike in the US, UK amateur repeaters are individually licensed. You must get approval from Ofcom, including a Notice of Variation. This is because your base license does not allow ...


5

I hold an Amateur Extra licence from the United States and have moved to the United Kingdom. I sent an application to Ofcom for a Full reciprocal licence and received the following response. I can operate for three months for free, then £20 each six months for an indefinite length. I plan on arguing my case as the United States does not issue Harmonized ...


5

The UK band plan for the 2m (VHF) band can be found here on the RSGB website. In the UK, the 2m band is between 144.000MHz and 146.000MHZ. Of note is the section 145.5935 - 145.7935MHz, which are the repeater outputs. Depending on where you are in the UK, there should be at least one repeater that you can here there. Whether or not there is any activity is ...


5

You didn't mention which country you're in, but in the US, it is only legal to transmit on CB with a "type-accepted" radio. In other words, the manufacturer of the radio must apply to the FCC for permission to sell the model. It's not legal to build your own CB transmitter. Regarding using a single antenna for multiple bands, a transmitter typically ...


5

The field strength in volts/meter as a function of effective radiated power and distance is given by: $$E=\frac{7.01\sqrt{P_{ERP}}}{d} \tag 1$$ where d is the distance from the radiating antenna in meters and PERP is the effective radiated power in watts. So you can see your sample problem was chosen such that the 7 meter distance cancels out the upper 7....


4

Encryption on amateur radio is prohibited in most countries. There are some exceptions, in some countries, and for some specific use cases. You'll need to consult your local rules. Some countries (Australia being an example) allow encryption in emergency communications and relevant training activities. Some countries (US, for example) allow encryption for ...


4

OK, I'm a mere Foundation Licence holder, but other than the increased power, no extra privileges open up at Intermediate Level - it is only with the Advanced/Full Licence that the extras arrive Mostly these around Notice of Variations to hold Special Event calls and/or operate Club callsigns and/or to set up and run a repeater - and to operate on some ...


4

Reading about SDR I think I can have one single antenna and use the computer magic to allow me to work with all frequencies that antennae receives, am I mistaken? Well, I always explain it that way: An SDR is like a soundcard on speed. Usually, with a mixer. So, what the SDR does (in Receive direction) is take a spectrum of bandwidth $B$ (for example, 10 ...


4

Written permission or prohibition to bring ham radio gear on board is proffered by some of the large cruise lines. For example, Carnival gives written permission by way of their published policy where as Norwegian specifically denies permission to possess ham radio equipment on board (or even a satellite phone!). Once on board, the captain of the ship must ...


4

The normal answer is no. There is one exception however, in that if the Foundation holder is directly "operating under the supervision of a Full Licence holder". See Clause 7, para 2.76 and 2.77 of Ofcom's "Guidance for licensees" document. You can find this document at: Guidance for licensees


4

The frequencies your neighbor would be transmitting are different than the ones your own communications would use. They should not interfere with your utilities. Occasionally, funny things like old metal connections can end up re-broadcasting related frequencies instead of the original one, but this is usually accounted for as well when the allocations are ...


4

No. Yes. There's no particular reason to think so. The UK and the US have both adopted CEPT T/R 61-01 regarding reciprocal amateur operation. Despite the fact that CEPT is the "European Conference of Postal and Telecommunications Administrations", it's independent of the EU (it long predates the EU), and parties to T/R 61-01 don't have to be ...


3

if it is legal, or desirable Radio Amateurs may use any language which they can speak. I am not aware that there are any countries where the use of, or the not-use of, a particular language is stipulated in the license. But IANAL, and there are many countries. if it is legal, or desirable If the licensed Amateur wants to use his own native language, ...


3

It is ok. Hams may use any language they want if both sides agree to use it. If ham calls CQ in Arabic that is invitation to use that language in QSO.


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