Table 2-1: firmware versions, 10 user guide – Codan Radio MT-4R User Manual
Page 18

UG-001 Daniels MT-4R and MT-4D Radio Systems
www.danelec.com
Chapter 2: Technical Information
10
User
Guide
Table 2-1: Firmware Versions
MT-4R Receiver
Version
Description / Notes
Earlier than 3.7
Return to factory for upgrade
3.7
Last release until December 2005 (version 3.8)
3.8 Bug
fi x for CTCSS lockup
MT-4R Transmitter
Version
Description / Notes
Earlier than 3.3
Return to factory for upgrade
3.3 Last
release
MT-4D Receiver (Repeater)
Version
Description / Notes
1.0
Initial product release
1.1
Minor factory bug fi xes
2.0
Faster COR response time
Capable of passing data packet units intact (OTAR, etc.)
2.1 Modifi cation to speed up CI-RC-4M Response time
2.2 Bug
fi x for CTCSS lockup
MT-4D Transmitter (Repeater)
Version
Description / Notes
1.0
Initial product release
1.1
Transmit LED bug fi x (LED was slow to light)
1.2
Transmitter lock-up bug fi xed (Tx locks when keyed while
powering
up)
2.0
Faster PTT response time
Capable of passing data packet units intact (OTAR, etc.)
2.1 Bug
fi x for hardware problem in new circuit board revision
2.2 Modifi cation to speed up CI-RC-4M response time
2.3 Bug
fi x for lockup condition
Added courtesy tone
MT-4D Receiver (Base)
Version
Description / Notes
1.0
Initial product release
1.1
Faster COR response time
Bug
fi xes for squelch override, and secure/clear output
Analog / Digital audio levels equalized
1.2 Bug
fi x for CTCSS lockup
MT-4D Transmitter (Base)
Version
Description / Notes
1.0
Initial product release (Beta version)
1.1
Initial product release
(Faster PTT response time than Beta)
1.2
Secure/clear output bug fi x