• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

Explanation Of Terms

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#1
Can someone explain to me the term "Frequency" and "Input"
Which is "Receive" and which is "Tramsmit"?
I know this must be an obvious question, but you have to start at the beginning.
Thanks,
LLS207
 

ko6jw_2

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Santa Ynez, CA
#3
In terns of the database listings, "frequency" is what you want to receive. If you were transmitting "input" would refer to the transmit frequency in a repeater system. For monitoring, the output of the repeater is what you generally want to listen to. Listening on the input is useful sometimes to determine how near the station or unit is to your location.

In systems that don't use a repeater there is no input.

Rarely, systems like the California Highway Patrol, use separate input and output frequencies, but no repeater. In such a case you have to program both frequencies to hear both sides of the conversation. You will only hear nearby mobiles.
 
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Shawnee Kansas (Kansas City)
#4
Frequency is the radio frequency and is usually measured in Kilo (1,000) hertz or Mega (1,000,000) hertz. Input means the frequency you transmit to the repeater and the input frequency to the repeater receiver. Transmit is the frequency you send to the repeater (or to another station in simplex) or the frequency the repeater sends to you.
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