In LSB (Lower Side Band) emissions, the transmitted energy falls below the suppressed carrier frequency. Transmitting with a display frequency of 18.068 MHz puts the emissions outside of the allowed band of 18.068 to 18.110 MHz. The emitted energy falls within the band for all other answers.

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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 arrl chapter 3 arrl module 3a

In USB (Upper Side Band) emissions, the transmitted energy falls above the suppressed carrier frequency. Transmitting with a display frequency above 14.149 MHz puts the 1KHz bandwidth emissions outside the top of the allowed band at 14.15 MHz. The emitted energy falls within the band for all other answers.

For safety you may want to keep your carrier frequency below 14.147 in case your AFSK audio exceeds a bandwidth of 1 KHz because the USB bandwidth could be as much as 3 KHz.

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Remember that your actual signal extends to either side of the frequency you are transmitting on. A Single Side Band (SSB) 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 sidebands 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 arrl chapter 3 arrl module 3a

The 60 meter band has special restrictions including the restriction of radiated power relative to the gain of a half-wavelength dipole antenna which is 100 watts PEP. If the antenna is something other than a half-wavelength antenna, then the power output must be adjusted.

If you have a 3 dBd gain antenna which would be twice the gain of a dipole, then you would have to reduce the output power to 50 watts.

brankin

Hint: The only answer has "half-wave dipole" in it.

-KE0IPR

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Tags: 60 meters transmit power rules and regulations arrl chapter 3 arrl module 3a

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

-brankin

Memory Aid: Think "sixty-center"

-KE0IPR

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Tags: arrl chapter 3 arrl module 3a

This is a memory item.

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

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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.

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Tags: control operator rules and regulations message forwarding arrl chapter 3 arrl module 3a

Primary responsibility for the contents of a message belongs to the originating station but your station still has the responsibility to do what is reasonable to ensure that the transmissions that it sends (including forwarded messages) do not violate FCC rules.

Basically that just means that if you discover that your station is forwarding something that violates rules, take steps so that that communication is no longer being forwarded.

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Tags: digital modes rules and regulations message forwarding arrl chapter 3 arrl module 3a

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.

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Tags: aircraft/ship operation station types arrl chapter 3 arrl module 3a

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 arrl chapter 3 arrl module 3a

Slow scan TV uses a similar amount of bandwidth to SSB phone (voice) transmissions, so it is allowed on the same band segments (except 60 meters).

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Tags: arrl chapter 8 arrl module 8e

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.

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Tags: aircraft/ship operation station types arrl chapter 3 arrl module 3a

This is a memory item.

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

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