Hi,
I have an Icom IC-F70DT & IC-F80DT. Both have the following firmware versions: Rev 3.0 / P25 Rev 2.8u. My Icom programming software is CS-F70/F1700 Version 2.2.
I recently joined an amateur radio group that requires MDC1200 for access (FishFAR in Chicago). It requires a 1200ms delay before transmitting the MDC1200 tone. I have programmed my radios for MDC1200 TX enabled on PTT Down, and have enabled the R.T.T. Beep.
According to the help file - R.T.T. Beep: Set the Ready To Transmit Beep (go ahead beep.) To avoid clipping the first syllables of a transmission when an MDC signal is sent, a "go ahead" beep can be sounded when the microphone is unmuted.
After reading the above caption, one would "ASSUME" that the microphone would be muted during the 1200MS delay. My problem is that my microphone is not unmuted on either radio (F70 or F80) during the 1200ms delay, and then the R.T.T. Beep sounds.
I've searched through all of the other radio parameters, and can't seem to find anything else related to this. I don't know if this is an Icom firmware issue, or a programming issue on my part.
Thanks in advance for any comments or suggestions.
I have an Icom IC-F70DT & IC-F80DT. Both have the following firmware versions: Rev 3.0 / P25 Rev 2.8u. My Icom programming software is CS-F70/F1700 Version 2.2.
I recently joined an amateur radio group that requires MDC1200 for access (FishFAR in Chicago). It requires a 1200ms delay before transmitting the MDC1200 tone. I have programmed my radios for MDC1200 TX enabled on PTT Down, and have enabled the R.T.T. Beep.
According to the help file - R.T.T. Beep: Set the Ready To Transmit Beep (go ahead beep.) To avoid clipping the first syllables of a transmission when an MDC signal is sent, a "go ahead" beep can be sounded when the microphone is unmuted.
After reading the above caption, one would "ASSUME" that the microphone would be muted during the 1200MS delay. My problem is that my microphone is not unmuted on either radio (F70 or F80) during the 1200ms delay, and then the R.T.T. Beep sounds.
I've searched through all of the other radio parameters, and can't seem to find anything else related to this. I don't know if this is an Icom firmware issue, or a programming issue on my part.
Thanks in advance for any comments or suggestions.