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JMC RT-2500 Test Mode SPECIFICATION | Radioaficion Ham Radio

JMC RT-2500 Test Mode SPECIFICATION

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TEST MODE SPECIFICATION for JMC RT-2500

There are four test items in test mode.

■ LCD TEST (first screen display after entering test mode)

■ TX TEST

■ RX TEST

■ PA TEST

Warning: After executing this test mode, all user setting are initialized to factory default setting except User MMSI and ATIS ID.

How to enter TEST MODE

Turn off [VOL/POWER] switch, then hold [H/L] key and [PA] key, and turns on [VOL/POWER] switch. Press [SELECT] key for each test mode, display shows LCD test mode. You can test following several

JMC RT-2500 test mode

To Escape TEST MODE

Turns off the [VOL/POWER] switch. Then unit will start-up as normal operation with all memory clear.

1. LCD Test mode

a. All segments of LCD turn on in this test mode. Check whether missing segment is found.

JMC RT-2500 test mode

b. Press [SELECT] key, then display change to next "TX test" mode.

2. TX TEST

2-1. Common TX TEST

LCD screen shows " - - TX TEST 1 - -" and the channel number is automatically selected to 14CH after entering this TEST mode.

a. The channels can be chosen from CH14, CH88, CHL2, CHM1 and CH01 (ALL CH INT Mode). The channel is selected by [▲] or [▼] key.

Mute state is ON in this mode.

b. If [PTT] switch holds on, RT-2500 will transmit power and turn on TX Icon. If [PTT] switch releases, it won't transmit and then TX Icon disappear. TX TIMEOUT function doesn't work.

c. Press [H/L ] key, it is possible to change TX power from 1W or 25W.

When Low Power transmits, pressing [H/L ] key then output power change to 25W. When CH changes, it is possible to set High power.

e. Press [SELECT] key in this mode, display change to DSC DEV.ADJ. mode.

2-2. DSC DEV. Adjustment for 1.3KHz

LCD screen shows " - - TX TEST 2 - -" and the channel number is automatically selected to 70CH after entering this TEST mode. Then "1.3KHZ OUT" will be displayed on the LCD.

To adjust DSC transmitting deviation level, RT-2500 outputs 1.3/2.1KHz TONE while holding [PTT] switch.

* DSC Mode changes in ATIS Mode at times and changes into DSC Mode at ATIS Mode if [PA] key is pressed. ("1.3KHZ OUT" and "2.1KHZ OUT")

"WX" icon lights at ATIS Mode. Moreover, an initial value is DSC Mode.

2-3. DSC DEV.ADJ (2.1KHz)

LCD screen shows " - - TX TEST 3 - -" and the channel number is automatically selected to 70CH after entering this TEST mode. Then "2.1KHZ OUT" will be displayed on the LCD.

To adjust DSC transmitting deviation level, RT-2500 outputs 2.1KHz TONE while holding [PTT] switch.

Press [SELECT] key in this mode, display change to "TX TEST 4"

2- 4. DSC DEV.ADJ (1.3/2.1KHz)

LCD screen title shows " - - TX TEST 4 - -" and the channel number is automatically selected to 70CH

after entering this TEST mode. Then "1.3/2.1KHZ OUT" will be displayed on the LCD.

To adjust DSC transmitting deviation level, RT-2500 outputs 1.3/2.1KHz TONE while holding [PTT]

switch.

Press [SELECT] key in this mode, display change to RX TEST 1.

3. RX TEST

3- 1. Common TEST

LCD screen shows " - - RX TEST 1 - -" and the channel number is automatically selected to 16CH after entering this RX TEST mode.

a. The channels that can be chosen are CH16, CH28, CH31, CHL1 and CH06 (ALL CH INT Mode). The channel is changed by [▲] or [▼] key

According to the state of SQ, MUTE is controlled in this mode. SQ Busy (signal on) >> MUTE OFF SQ OFF (No signal) >> MUTE ON

b. If [PTT] key pressed, it won't transmit.

c. It is possible to adjust volume level with [VOL/POWER] knob.

d. It is possible to adjust squelch level with [SQUELCH] knob.

e. When power supply is under about 11V, "BATTERY LO" is displayed on LCD. When power supply is over about 16V, then "BATTERY HI" is displayed on LCD.

Press [SELECT] key in this mode, display change to RX TEST 3 menu.

3-2 Software Version TEST

When LCD screen shows "-- RX TEST 1--", you can execute following software version test

a. Select CH06 by "DOWN" key for entering version test mode.

b. Press following keys as [STEP/SCAN] key -> [Hi/Lo] key -> [16/9/TRI] within one second.

c. Then display shows like a "Version 1.16 CHECK SUM 8609"

3-3 DSC TEST

LCD screen shows " - - RX TEST 3 - -" and the channel number is automatically selected to 70CH after entering this DSC TEST mode.

a. In this mode, DSC DECODE function is ON.

According to the state of SQ, MUTE is controlled like RX TEST mode. SQ Busy (signal on) >> MUTE OFF SQ OFF (No signal) >> MUTE ON

b. It is possible to adjust volume level with [VOL/POWER] knob.

c. It is possible to adjust squelch level with [SQUELCH] knob.

d. Press [SELECT] key in this mode, display change to PA TEST menu.

4. PA TEST

a. Press [PTT] Key, you can change to PA TEST mode.

It is possible to adjust the PA volume. To increase the PA volume, rotate [VOL/POWER] knob clockwise. To decrease the PA volume, rotate [VOL/POWER] knob counterclockwise.

b. Press [SELECT] key in this mode, then display return to top menu of LCD TEST menu.

Summary Operating Manual
for Model RT-2500

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