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Old 08-27-2018, 7:24 PM
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Default M7100 Transmit/Scan issue

Hello Everyone,
I have a very odd problem. I have a VHF P25 M7100. I programmed a simplex channel with a DCS tone but it will not receive that channel and it will not transmit on that channel if the radio is in scan mode. I found this to be very odd. I have tested this by transmitting and receiving on many radio's. I can receive and transmit fine as long as the radio is not in scan mode. Does anyone know how to fix this?
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Old 08-28-2018, 8:47 PM
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Originally Posted by KG5HHS View Post
Hello Everyone,
I have a very odd problem. I have a VHF P25 M7100. I programmed a simplex channel with a DCS tone but it will not receive that channel and it will not transmit on that channel if the radio is in scan mode. I found this to be very odd. I have tested this by transmitting and receiving on many radio's. I can receive and transmit fine as long as the radio is not in scan mode. Does anyone know how to fix this?



In the Conventional Frequency Set:

Is the channel in the Scan List?






Under SCAN OPTIONS:
Is ALWAYS SCAN SELECTED CHANNEL enabled?
Is SCAN WITH CHANNEL GUARD enabled?
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Old 08-28-2018, 9:07 PM
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Yes, scan is selected for this channel in the conventional frequency set. Also under the Scan Options, "always scan selected channel" and "Scan with channel guard" are selected.
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Old 08-29-2018, 12:46 PM
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OK, thanks.


  • What software and revision used to program the radio?
  • Did you read the radio, edit the file, and program it back in?
  • What revision of flashcode? (the J2R file)
  • What revision of DSP code?

Hopefully I can help...
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Old 09-03-2018, 3:55 PM
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Im using Programmer R18B02
I usually just edit the file, save it and write it to the radio.
Revision is J2R11C02
DSP code I think is F8R06N05
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Old 09-06-2018, 9:50 AM
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Under scan options, make sure Transmit Select is on Selected and NOT Scanned...
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Old 09-13-2018, 4:05 PM
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I just checked, in Scan Options > Universal Scan Options >Transmit Select I have "Selected".
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