Codan-radio MT-4E Analog and P25 Digital - Maintenance Guide Manual de usuario descargar pdf (Pagina 26)

MAINTENANCE GUIDE | MT-4E ANALOG & P25 DIGITAL RADIO SYSTEMS

Chapter 5: Codan Radio System TestingPage 18

GENERAL SET-UP AND CONNECTIONS

Uploading Codan Conﬁ gurations to the IFR 2975

The IFR 2975 allows for conﬁ guration ﬁ les to be saved and recalled on the test set. These conﬁ guration

ﬁ les are uploaded to the test set from a ﬂ oppy disk and can also be uploaded from your computer if the

test set is connected to your network.

Firmware version 1.8.1 or higher is required on your IFR 2975 to use these conﬁ guration ﬁ les. To check

the ﬁ rmware version of the IFR 2975, go to System (7) then Version (3). If Version 1.8.1 or higher is not

installed in the IFR 2975, go to www.P25.com for the latest update. On some ﬁ rmware versions, the

ﬁ les would be recalled with the MOD TYPE off. Update the ﬁ rmware version or remember to turn the

MOD TYPE to FM or P25 after recalling a setup.

The IFR 2975 conﬁ guration ﬁ les are available from the Codan website at www.codanradio.com. The

ﬁ le can be downloaded, then unzipped and copied onto a ﬂ oppy disk or transferred onto the network.

If a Codan directory already exists on your IFR 2975 (for MT-4R/D testing), rename that directory or it

will be overwrittwen by the MT-4E Codan directory.

To upload a ﬁ le from a ﬂ oppy disk, insert the ﬂ oppy disk into the drive and go to System (7) then Save

/ Recall Setups (6). Click on the BACKUP SETUPS button on the right hand side of the screen. In

the window that opens, click on the BACKUP TO button and select RESTORE FROM ﬂ oppy. This will

download the Codan directory to the internal drive of your IFR 2975.

The recalled setups could affect some of the System Conﬁ guration settings on the IFR 2975 (such as

the 10 MHz reference selection). You may need to change and re-save these saved ﬁ les depending on

your system conﬁ guration (eg. if you are using an EXTERNAL 10 MHz reference).

Please note that some of the setups that are recalled are generic and may need to be changed for your

speciﬁ c receiver and transmitter settings.

The generic saved setups are as follows:

Audio = 1000 Hz @ 1.5 KHz deviation (for wideband set this to 3.0 KHz deviation)

CTCSS = 100.0 Hz @ 0.35 KHz deviation (for wideband set this to 0.5 KHz deviation)

NAC = 293

TGID = 1

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Codan-radio MT-4E Analog and P25 Digital - Maintenance Guide Manual de usuario Pagina 26