JRC JSS-2500 - 1. EQUIPMENT OVERVIEW; 1.1 Functions; 1.2 Features

2.4.1 Regular screen ...................................................................................................... 2-10
2.4.2 Telex communication screen ................................................................................. 2-11
2.4.3 Message file edit screen ........................................................................................ 2-12
3. INSTALLATION .......................................................................................... 3-1
4. OPERATION .............................................................................................. 4-1
4.1 Operation overview ...................................................................................................... 4-1
4.1.1 Operation of the controller ..................................................................................... 4-1
4.1.2 Operation of the data terminal ............................................................................... 4-4
4.2 Basic communications procedure ............................................................................... 4-6
4.2.1 Turning on the power ............................................................................................. 4-6
4.2.2 Turning off the power/ Putting into sleep mode ..................................................... 4-7
4.2.3 Communicating in radiotelephone mode ............................................................... 4-8
4.2.4 Communicating in CW mode ................................................................................. 4-10
4.2.5 Receiving AM broadcasts ...................................................................................... 4-12
4.2.6 Communicating in telex mode (TLX) ..................................................................... 4-13
4.2.6.1 ARQ mode operation ..................................................................................... 4-13
4.2.6.2 CFEC mode operation ................................................................................... 4-16
4.2.6.3 SFEC mode operation .................................................................................... 4-20
4.2.6.4 Editing telex messages .................................................................................. 4-22
4.3 Setting the radio .......................................................................................................... 4-25
4.3.1 Setting the communication frequencies ................................................................. 4-25
4.3.2 Setting the communication channels ..................................................................... 4-26
4.3.3 Setting the automatic gain control (AGC) .............................................................. 4-30
4.3.4 Setting the noise reduction (NR) ........................................................................... 4-30
4.3.5 Setting the attenuation (ATT) ................................................................................. 4-31
4.3.6 Setting the clarifier ................................................................................................. 4-31
4.3.7 Setting the squelch level ........................................................................................ 4-32
4.3.8 Setting the CW bandwidth ..................................................................................... 4-32
4.3.9 Scanning the Rx frequencies ................................................................................. 4-33
4.3.10 Reducing the Tx power .......................................................................................... 4-35
4.3.11 Setting the antenna tuning power .......................................................................... 4-35
4.3.12 Setting the Auto Tune Start (ATS) function ............................................................ 4-35
4.4 Basic DSC operations ................................................................................................. 4-36
4.4.1 Routine calls to an individual station ...................................................................... 4-36
4.4.2 Receiving routine individual calls ........................................................................... 4-38
4.4.3 Routine group calls ................................................................................................ 4-40
4.4.4 Receiving routine group calls ................................................................................. 4-40
4.5 Emergency calls (DSC distress/urgency/safety calls) ................................................. 4-41
4.5.1 Safety or urgency calls to an individual station ...................................................... 4-41
4.5.1.1 Special safety individual calls ......................................................................... 4-41
4.5.2 Receiving safety or urgency individual calls .......................................................... 4-43
4.5.2.1 Receiving special safety individual calls ........................................................ 4-43
4.5.3 Safety or urgency area calls .................................................................................. 4-44
4.5.4 Receiving safety or urgency area calls .................................................................. 4-45
4.5.5 Distres
s
alerts ........................................................................................................ 4-46
4.5.5.1 Quick distress alerts ....................................................................................... 4-46