ARRL's Tech Q&A: Your quick & easy path to your FIRST ham radio license by ARRL

Author:ARRL
Language: eng
Format: epub
ISBN: 9781625950178
Publisher: ARRL, the national association for Amateur Radio
Published: 2014-04-30T00:00:00+00:00

T4B09 Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for SSB reception?

A. 500 Hz

B. 1000 Hz

C. 2400 Hz

D. 5000 Hz

C See question T4B08. [Ham Radio License Manual, page 5-7]

T4B10 Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for CW reception?

A. 500 Hz

B. 1000 Hz

C. 2400 Hz

D. 5000 Hz

A See question T4B08. [Ham Radio License Manual, page 5-7]

T4B11 Which of the following describes the common meaning of the term “repeater offset”?

A. The distance between the repeater’s transmit and receive antennas

B. The time delay before the repeater timer resets

C. The difference between the repeater’s transmit and receive frequencies

D. Matching the antenna impedance to the feed line impedance

C To send a signal through a repeater, you must transmit on the repeater’s input frequency where the repeater receiver listens, called the repeater’s input frequency. You then listen where the repeater transmits, called the repeater’s output frequency. To make it easy to use many different repeaters, hams have decided on a standard separation between input and output frequencies. The difference between repeater input and output frequencies is called the repeater’s offset or shift. (See question T2A01.) [Ham Radio License Manual, page 6-16]

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