work on docs
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@ -54,6 +54,10 @@ History
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*TBD*
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*TBD*
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</p>
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</p>
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<p>
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*TBD* SID and System A/B
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</p>
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<p class="toppic">
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<p class="toppic">
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<a name="basestation"></a>
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<a name="basestation"></a>
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Setup of a base station
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Setup of a base station
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@ -85,6 +89,13 @@ frame.c:3658 info : RX Level: 52% Quality: 60% Polarity: NEGATIVE
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</pre>
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</pre>
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<p>
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You should tune the receiver to 880.020 first, to check if you can hear and decode the idle signal from the base station.
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Then tune to actually uplink frequency 835.020 MHz.
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The actual level is not yet relevant.
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(You may check the quality using '-L 2' command line option and build a radio loop by tuning the receiver to the transmitter.)
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</p>
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<pre>
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<pre>
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frame.c:3630 info : RX RECC: DCC=0
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frame.c:3630 info : RX RECC: DCC=0
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@ -346,12 +346,15 @@ The duration is *TBD* ms and the frequency deviation *TBD* KHz.
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</p>
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</p>
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<p>
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<p>
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While dialing is received by the base station, it repeats the 5 digits of mobile identy.
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While dialing is received by the base station, the base station repeats the 5 digits of mobile identity.
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This takes place after *TBD*.
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It is repeated right after the 5th digit of the mobile identity was received.
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Only the (bare) 5 digits of the mobile identity are repeated, not the other digits.
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</p>
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</p>
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<p>
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<p>
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The mobile station compares the repeated identiy and *TBD* if it mismatches.
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The mobile station compares the repeated identiy and turns transmitter off, if it mismatches.
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No clear signal is sent.
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If another mobile station dials at the same time, this wrong identity indicates that the base station receives the other mobile station and not our mobile station.
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</p>
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</p>
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<p>
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<p>
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@ -499,7 +502,7 @@ But you get a busy signal, that means there is no channel.
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Now run your base station on channel 1.
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Now run your base station on channel 1.
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You may add '-g x' or '--gfs x' command line option to change the station ID from default to any value you like. (see help)
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You may add '-g x' or '--gfs x' command line option to change the station ID from default to any value you like. (see help)
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Tune the transmitter to 153.010 and the receiver to 148.410.
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Tune the transmitter to 153.010 and the receiver to 148.410.
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You should tune the receiver to 153.010 first, to check if you hear the idle signal from the base station.
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You should tune the receiver to 153.010 first, to check if you can hear and decode the idle signal from the base station.
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Then tune to actually uplink frequency 148.410 MHz.
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Then tune to actually uplink frequency 148.410 MHz.
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The actual level is not yet relevant.
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The actual level is not yet relevant.
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(You may check the quality using '-L 2' command line option and build a radio loop by tuning the receiver to the transmitter.)
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(You may check the quality using '-L 2' command line option and build a radio loop by tuning the receiver to the transmitter.)
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@ -373,6 +373,13 @@ When we make a call and another phone is regisered, the phone will loose coverag
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After the call, the other phone re-registers again.
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After the call, the other phone re-registers again.
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</p>
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</p>
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<p>
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You should tune the receiver to 465.090 first, to check if you can hear and decode the idle signal from the base station.
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Then tune to actually uplink frequency 455.090 MHz.
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The actual level is not yet relevant.
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(You may check the quality using '-L 2' command line option and build a radio loop by tuning the receiver to the transmitter.)
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</p>
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<p>
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<p>
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Now power up a phone.
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Now power up a phone.
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Depening on your card reader, insert chip or magnetic card.
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Depening on your card reader, insert chip or magnetic card.
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@ -20,8 +20,10 @@ Now run your base station on channel 1.
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Tune the transmitter to 463.000 MHz and the receiver to 453.000.
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Tune the transmitter to 463.000 MHz and the receiver to 453.000.
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You should tune the receiver to 463.000 first, to check if you hear the idle signal from the base station.
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You should tune the receiver to 463.000 first, to check if you hear the idle signal from the base station.
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Then tune to actually uplink frequency 453.000 MHz.
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Then tune to actually uplink frequency 453.000 MHz.
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(You may check the quality using '-L 2' command line option and build a radio loop by tuning the receiver to the transmitter.)
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</p>
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</p>
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<pre>
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<pre>
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# src/nmt/nmt -k 1 -y SE,1
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# src/nmt/nmt -k 1 -y SE,1
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