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  #1  
Old 01-17-2008, 01:44 PM
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Soooooooo...since I was playing hookie during Groucho's first class I now seek on-line education.

Right now when I key up on lets say 145.145 (tone set at 107.2), the transmit frequency jumps to 144.545. Does this mean I'm running Duplex? If that is true then if I wanted to stay Simplex is it just a matter of disabling the freq shift?

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Old 01-17-2008, 01:58 PM
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It has to be that way for the repeater to work. You will be simplex when not tuned to a repeater frequency. 146.520 is a standard simplex frequency. I actually raised someone on that frequency on my way down to Ouray this past summer. He was quite surprised. I don't think we were even 10 miles apart.
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Old 01-17-2008, 02:01 PM
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Thats still not called Duplex is it Chris?
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Old 01-17-2008, 02:05 PM
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Originally Posted by Shark Bait View Post
It has to be that way for the repeater to work. You will be simplex when not tuned to a repeater frequency. 146.520 is a standard simplex frequency. I actually raised someone on that frequency on my way down to Ouray this past summer. He was quite surprised. I don't think we were even 10 miles apart.
Ahhh....I'm beginning to understand....that has had me for a while. Back to my question.....if I turn off my freq shift technically I can be simplex on 145.145 without hitting the repeater...correct?
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Old 01-17-2008, 02:07 PM
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Thats still not called Duplex is it Chris?
according to what I understand.........if you transmit on a differant freq than you recieve that IS duplex..
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Old 01-17-2008, 02:17 PM
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Quote:
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Ahhh....I'm beginning to understand....that has had me for a while. Back to my question.....if I turn off my freq shift technically I can be simplex on 145.145 without hitting the repeater...correct?
No. I believe 145.145 is the output frequency. I'm not sure if the frequency shift (of 600 kHz for 2m according to my book) occurs automatically from the radio when you press the talk button, if you've entered the PL tone for that frequency.
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according to what I understand.........if you transmit on a differant freq than you recieve that IS duplex..
In reading my book, I guess it is considered Duplex.
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Old 01-17-2008, 02:18 PM
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BTW I am just using 145.145 as an example as I know it would be socially unacceptable to congest a repeater freq like that....
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Old 01-17-2008, 02:39 PM
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I think some of the band is designated for repeaters and other parts for simplex. So you wouldn't try to run simplex on 145.145, even if there wasn't a repeater set up in your area. IIRC, this varies by state depending on the local band plan.
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Old 01-17-2008, 02:40 PM
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Quote:
Originally Posted by Uncle Ben View Post
BTW I am just using 145.145 as an example as I know it would be socially unacceptable to congest a repeater freq like that....
It wouldn't interfere with the repeater operation unless you were broadcasting the tone anyway.
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  #10  
Old 01-17-2008, 02:50 PM
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Quote:
Originally Posted by Hulk View Post
It wouldn't interfere with the repeater operation unless you were broadcasting the tone anyway.
Ahhhhhh....there's another piece of the pie! Thanks!
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