Las señales de banda lateral superior se extienden hacia arriba (en frecuencia) desde la frecuencia portadora; por lo tanto, si transmite una señal de banda lateral superior de 3 kHz de ancho en 14,348 MHz, se extenderá desde 14,348 MHz hasta 14,351 MHz.

La banda de 20 metros se extiende desde 14,000 MHz hasta 14,350 MHz, por lo que el 1 KHz superior de la señal está por encima de 14,350 MHz y, por lo tanto, estaría transmitiendo ilegalmente fuera de banda.

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Test Tip: With all of these types of questions the correct answer begins with "3 kHz"

The SSB take up approximately 3khz of bandwidth for Lower Side Band (LSB) so you need to tune the radio 3khz above the lower edge so you will not be transmitting outside of your bandwidth privileges.

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Tags: phone ssb bandwidth

The top of the data portion of the 20-meter band is 14.150 MHz. Our entire transmission needs to fall below this frequency. Because we are using Upper Sideband and 2.8 kHz Bandwidth, our signal occupies the spectrum from 0 - 2.8kHz above the selected carrier frequency.

Therefore, to keep our transmission below 14.150 MHz, the maximum carrier frequency is 14.150 MHz - 2.8 kHz or 14.1472 MHz.

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Remember that your actual signal extends to either side of the frequency you are transmitting on. A Lower Side Band (LSB) transmission is considered to have 3 kHz of bandwidth below the carrier, so you should set your carrier at least 3 kHz higher than the lower edge of the 80 meter band's voice portion when operating LSB.

The lower limit for phone in the 3MHz (80 meter) band is 3.600 MHz, so the sideband of your signal if you transmit on 3.601 Mhz could easily go below 3.600 MHz and you would be transmitting in a part of the band where phone is not allowed.

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Tags: international morse code bandwidth 75/80 meters

The rules for operating an amateur radio station aboard a vessel or craft in the US are roughly the same as the rules governing any other station in the United States.

Specifically, the control operator (the person in physical control of the station apparatus) must either hold a valid FCC-issued amateur radio license or they must be authorized for alien reciprocal operation -- that is, they can operate if they are an alien (non-US citizen) holding a license in a country with whom the US has a reciprocal operating agreement allowing them to operate in the United States with their alien amateur radio license.

Goofy hint: ”control” is in the question, and ”aliens” is in the correct answer. In sci-fi movies, the aliens always try to take control of Earth.

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Tags: aircraft/ship operation station types

All signals transmitted by an amateur on 60 meter channels must be centered within the channel.

Memory Aid: Think "sixty-center"

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This is a memory item.

2200M is the lowest band on the band plan. The correct answer has the lowest wattage.

See: http://www.arrl.org/images/view//Charts/Band_Chart_Image_for_ARRL_Web.jpg

TEST TIP: For this question, and associated question E1A14, when trying to remember the power limits for the two lowest amature bands, the LOWEST BAND (2200M) gets the LOWEST POWER (1W) while the SECOND-LOWEST BAND (630M) gets the SECOND-LOWEST POWER option (5W).

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Message forwarding systems are just that -- systems that forward messages.

While control operators of message forwarding stations are expected to do what is reasonable to prevent incorrect use of their station, the primary responsibility for the contents of a message still belongs to the station that sends the original message.

Last edited by schubie1. Register to edit

Tags: control operator rules and regulations message forwarding

This is a memory item, see the ARRL Band Plan Chart

TEST TIP: For this question, and associated question E1A07, when trying to remember the power limits for the two lowest amateur bands, the LOWEST BAND (2200M) gets the LOWEST POWER (1W) while the SECOND-LOWEST BAND (630M) gets the SECOND-LOWEST POWER option (5W).

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Just remember that on a ship or plane the captain is in charge. That could be the captain/master of a seagoing vessel or the captain/pilot of an airplane. In either case you should not use an amateur radio station without permission from the captain.

Also, this is the only question with the words "master" or "approved".

Last edited by purpleteam. Register to edit

Tags: aircraft/ship operation station types

Amateur Radio stations aboard a US-registered vessel in international waters are under the same guidelines as any station on US soil. You need a FCC-issued ham license or a reciprocal permit for an alien amateur license (meaning a license from another country) to operate your license on US soil, so you need that on a US-registered vessel as well.

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Tags: aircraft/ship operation international