Frequently Asked Questions: Difference between revisions
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=== Why do hams have so many antennas? === | === Why do hams have so many antennas? === | ||
Different [[band]]s require different [[antenna]]s. For example, an antenna that works very well for making worldwide contacts on [[HF]] will probably be useless for checking into local [[nets]] using [[ | Different [[band]]s require different [[antenna]]s. For example, an antenna that works very well for making worldwide contacts on [[HF]] will probably be useless for checking into local [[nets]] using [[repeater]]s on [[VHF]]. | ||
Also, it is sometimes useful to have multiple antennas for one band; for example, a [[Dipole Antenna|dipole antenna]] does not radiate much energy off the ends of the wires; it may be useful to have two dipoles perpendicular to each other for when talking to people in different regions. | Also, it is sometimes useful to have multiple antennas for one band; for example, a [[Dipole Antenna|dipole antenna]] does not radiate much energy off the ends of the wires; it may be useful to have two dipoles perpendicular to each other for when talking to people in different regions. | ||
Revision as of 19:20, 10 June 2022
This is a list of frequently asked questions.
If you have any more questions, please email sam@kj7rrv.com.
Questions
What do phrases such as "five by nine" mean?
These are R-S Signal Reports. The two numbers represent readability and signal strength.
What does "73" mean?
"73" is a "code word" that means "best regards". It originated with CW (Morse code) radio operators, who seek to abbreviate as much as possible because Morse code is much slower than speech, but is also very commonly used on voice radio modes.
Why do hams have so many antennas?
Different bands require different antennas. For example, an antenna that works very well for making worldwide contacts on HF will probably be useless for checking into local nets using repeaters on VHF.
Also, it is sometimes useful to have multiple antennas for one band; for example, a dipole antenna does not radiate much energy off the ends of the wires; it may be useful to have two dipoles perpendicular to each other for when talking to people in different regions.
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