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The thing that can get confusing is that the repeater can both transmit, and receive at the same time.

Say you have always used a CB, you know that when you talk ( or transmit) the receive in the cb is turned off, then when you let go of the mike key, the transmitter turns off and the receiver turns back on.
This is what is called simplex, you are transmitting or receiving on one frequency.

A repeater has a transmitter, and a receiver and they can both be turned on at the same time.
And what make a repeater work so well is it can do this on Two different frequency's.

What happens is that the transmitter is tuned to the output frequency( in this case the output frequency is 147.090 ) and the receiver it tuned to the input frequency (in this case the input of the repeater 147.690 )

Your Ht when you hit the PTT ( the key) transmits on the input of 147.690, the repeater hears it, and feeds the audio into the transmitter that is sending the signal out on 147.090.

This happens at the same time.

It can both TX and RX at the same time, on two different frequency's. ( i know i keep saying this, stick with me)
(This is full duplex)

When you enable the Reverse on you HT, you "flip" the input and out put frequency's, now your HT is Listening on the input of the repeater ( 147.690 ).....you will not hear the repeater output, but if the other party you are talking to is close enough, you hear his signal that is transmitting to the input of the repeater also on 146.690.

If you key your HT with reverse enabled, you will be transmitting on the output frequency, same as the transmitter of the repeater ( 147.090 ) and if he can hear you, then you are both close enough to talk simplex.

You can then both pick a simplex frequency, and talk with each other with your offset turned off, this means you are both transmitting and receiving on the same frequency again, just like a CB radio again( simplex)

At first it might be hard to grasp the the repeater can both transmit and receive at the same time, on two different frequency's, but this is what it does.
I hope that helps.

73
Jeff

<blockquote data-quote="AudioShockwav" data-source="post: 297423" data-attributes="member: 6">The thing that can get confusing is that the repeater can both transmit, and receive at the same time.Say you have always used a CB, you know that when you talk ( or transmit) the receive in the cb is turned off, then when you let go of the mike key, the transmitter turns off and the receiver turns back on.This is what is called simplex, you are transmitting or receiving&nbsp; on one frequency.A repeater has a transmitter, and a receiver and they can both be turned on at the same time.&nbsp;And what make a repeater work so well is it can do this on Two different frequency&#039;s.What happens is that the transmitter is tuned to the output frequency( in this case the output frequency is 147.090 )&nbsp; and the receiver it tuned to the input frequency (in this case&nbsp; the input of the repeater 147.690 )&nbsp;Your Ht when you hit the PTT ( the key)&nbsp; transmits on the input of 147.690,&nbsp; the repeater hears it, and feeds the audio into the transmitter that is sending the signal out on 147.090.&nbsp;This happens at the same time.It can both TX and RX at the same time, on two different frequency&#039;s. ( i know i keep saying this, stick with me)&nbsp;(This is full duplex)&nbsp;When you enable the Reverse on you HT, you &quot;flip&quot; the input and out put frequency&#039;s, now your HT is Listening on the input of the repeater ( 147.690 ).....you will not hear the repeater output, but if the other party you are talking to is close enough, you hear his signal that is transmitting to the input of the repeater also on 146.690.If you key your HT with reverse enabled, you will be transmitting on the output frequency, same as the transmitter of the repeater ( 147.090 ) and if he can hear you, then you are both close enough to talk simplex.You can then both pick a simplex frequency, and talk with each other with your offset turned off, this means you are both transmitting and receiving on the same frequency again, just like a CB radio again( simplex)At first it might be hard to grasp the the repeater can both transmit and receive at the same time, on two different frequency&#039;s, but this is what it does.&nbsp;I hope that helps.73Jeff</blockquote>

[QUOTE="AudioShockwav, post: 297423, member: 6"] The thing that can get confusing is that the repeater can both transmit, and receive at the same time. Say you have always used a CB, you know that when you talk ( or transmit) the receive in the cb is turned off, then when you let go of the mike key, the transmitter turns off and the receiver turns back on. This is what is called simplex, you are transmitting or receiving on one frequency. A repeater has a transmitter, and a receiver and they can both be turned on at the same time. And what make a repeater work so well is it can do this on Two different frequency's. What happens is that the transmitter is tuned to the output frequency( in this case the output frequency is 147.090 ) and the receiver it tuned to the input frequency (in this case the input of the repeater 147.690 ) Your Ht when you hit the PTT ( the key) transmits on the input of 147.690, the repeater hears it, and feeds the audio into the transmitter that is sending the signal out on 147.090. This happens at the same time. It can both TX and RX at the same time, on two different frequency's. ( i know i keep saying this, stick with me) (This is full duplex) When you enable the Reverse on you HT, you "flip" the input and out put frequency's, now your HT is Listening on the input of the repeater ( 147.690 ).....you will not hear the repeater output, but if the other party you are talking to is close enough, you hear his signal that is transmitting to the input of the repeater also on 146.690. If you key your HT with reverse enabled, you will be transmitting on the output frequency, same as the transmitter of the repeater ( 147.090 ) and if he can hear you, then you are both close enough to talk simplex. You can then both pick a simplex frequency, and talk with each other with your offset turned off, this means you are both transmitting and receiving on the same frequency again, just like a CB radio again( simplex) At first it might be hard to grasp the the repeater can both transmit and receive at the same time, on two different frequency's, but this is what it does. I hope that helps. 73 Jeff [/QUOTE]

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