WisyCom MTK952 Manuale utente

MTK952 User Manual

Dual Transmitter

Mono - Stereo - Intercom

Modulation

SN: ________________

rev.08 (ref. FW 2.3)

Date: 01 February 2018

MTK952 User Manual

rev.08

1

BRIEF DESCRIPTION

MTK952 is a versatile dual transmitter capable of working in a huge UHF bandwidth and of

generating any kind of narrow-band modulations, with very high quality and low spurious

emissions.

Main features:

 330 MHz Bandwidth (470 MHz – 800 MHz)

 2400 user-defined frequencies (40 group by 60 freq.)

 Stereo, mono, intercom audio modulation

 Output power up to 2 Watt (/W option)

 Analogue & digital input (AES3)

 Redundant power supply 230/110 Vac & 12 VDC

 DSP audio processing (40bit floating point / 2Gflops) with multi-companding

 Direct Digital Synthesis (DDS) of signal for the highest flexibility and quality (> 70 dB

stereo separation) SWR (Stationary Wave Ratio) sensing on antenna outputs

Above a schematic with the functional diagram of one transmitter of MTK952.

MTK952 use extreme technologies like:

 Direct Digital Synthesizer (DDS)

DDS is a type of frequency synthesizer used for creating arbitrary waveforms from a single,

fixed-frequency reference clock. A DDS has many advantages over its analog counterpart, the

phase-locked loop (PLL), including much better frequency agility, improved phase noise, and

precise control of the output phase across frequency switching transitions.

The Direct Digital Synthesis (DDS) technology can generate virtually any kind of modulation

while keeping an absolute phase accuracy.

 Double conversion stage

Using a double conversion and saw filter at IFs (intermediate frequencies) we can achieve a

very low spurious emission and a great bandwidth agility (330 MHz).

 Intermodulation cancelling power amplifiers

PA module (power amplifiers) is designed with an exclusive circuitry that reduce the

intermodulation generated by external carriers using a wideband phase cancelling design.

 Digital audio with Shark™ DSP 40bit floating point & 2 Gflops power from Analog Device

A very powerful Analog Design Shark DSP processor manages the audio with very low delay

(< 1 ms) and emulates by software all companding and pre-emphasis effects.

MTK952 User Manual

rev.08

2

SAFETY INSTRUCTION

 Read this safety instruction and the manual first

 Follow all instructions and information.

 Do not lose this manual.

 Do not use this apparatus under the rain or near the water.

 Do not install the apparatus near heaters or in hot environments, do not use outside the

operating temperature range.

 Mount the apparatus as indicated in the instruction, do not block side grids for air ventilation

 ATTENTION: supply the apparatus with a correct mains voltage and with the ground

connection. Check the power cord integrity.

 The power cord must be protected from damage

 Do not install the apparatus near heaters or in hot environments, do not use outside the

operating temperature range.

 Do not open the apparatus, only qualified service technician are enabled to operate on it. The

apparatus needs servicing when it is not properly working or is damaged by liquids, moisture

or other objects are fallen in the apparatus.

 Use only accessories or replacement parts authorized or specified by the manufacturer.

 Clean the apparatus only with dry cloths, do not use liquids.

 The ON/OFF is a double pole circuit breaker, but to ensure the complete disconnection of the

apparatus, disconnect the power cord.

 Report the serial number and the purchasing date in front of the manual. It is needed to have

proper replacement parts or accessories from the manufacturer.

 When replacement parts are needed, use only replacement parts authorized from the

manufacturer. Substitution with not authorized parts could result in electric shock, hazards or

fire.

 Keep attention on all the labels with warnings or hazards on the apparatus.

WARNING! The apparatus is intended for professional use; anyway the manufacturer alerts the

user that the headphone output power of the apparatus could exceed the level of 85 dB(A) of

sound pressure level and this could be dangerous for the hearings. Do not use the headphone with

high power level or for long time. Reduce the power or suspend the hearing in case of any kind of

hearing problem.

MTK952 User Manual

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3

QUICK START INSTRUCTION

1. Connect to the power outlet using the supplied power cable (see rear panel: connector 1)

2. Attach the antennas to the antenna out BNC connections (N connectors for MTK952N) (see rear

panel: connectors 8 and 13)

3. Connect the audio sources to the relative audio input connectors (see rear rear panel: connectors 7

for digital audio sources, connectors 9÷12 for analog audio sources)

NOTE: the cascade configuration allows to use the same analog audio input for more transmitter

4. Power on the MTK952

5. Switch off the RF output:

a. While the MTK952 is powering on and the progress bar appears, push the 3

rd

button at

the bottom (see indication “OFF” on the display)

b. At the end of MTK952 power on, push the lower button on the right of the displays

6. Enter in the MAIN>Audio source menu and

a. configure the input parameter between digital and analog (according to the audio

source connected at point 3)

b. configure the AF level meter parameter as modulation

c. if digital audio source:

 leave audio gain left and right parameters to 0dB and adjust the audio level

with the mixer

 if need change the audio gain left and right parameters

d. if analog audio source:

 leave audio gain left and right parameters to 0dB and adjust Max audio level

parameter. NOTE: this parameters is unique for both the channels (right and

left)

 if need change the audio gain left and right parameters

NOTE: adjust the audio level (thru the mixer and/or Max audio level and/or the audio gain left

and right parameters) so that, for the maximum input signal level,

the AF level bars show the MAXIMUM

NUMBERS OF GREEN LED INDICATORS AND NO

YELLOW/RED CLIP LED INDICATORS

the MOD. (modulation) bar shows the

MAXIMUM NUMBERS OF GREEN LED

INDICATORS AND NO YELLOW/RED PEAK

LED INDICATOR

NO

YES

NO

YES

7. Enter in the MAIN>Ch-Gr menu and set the group/channel/ frequency

8. Enter in the MAIN>Mode menu and set the appropriate Mode (see Compatibility table for more

detail)

9. Enter in the MAIN>TX Power menu and set the TX power (10÷200mW)

10. Exit from the menu and switch on the RF power output pushing the lower button on the right of the

display

MTK952 User Manual

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FRONT PANEL CONTROL AND FUNCTIONS

MTK952 allows an easy and quick configuration using buttons, push knobs and displays.

The front panel is functionally divided in the following section:

A – SCAN, SYNC and INFRARED

Automatic sync with “MPR30” receiver through infrared interface. The SCAN function allows to

display the results of a scan previously done from a MPR30 and set a frequency on the receivers.

B and C - TRANSMITTER1 and TRANSMITTER2

Transmitter 1 and 2 configuration and monitor

of radio/audio levels.

❶ Audio and Modulation indicators

 two LED bars for the AF levels (L=left & R=right levels): they can show AF input levels or

modulation levels (after the pre-emphasis and compander phases, before the

modulation phase) according to the AF level meter parameter on Audio source menu

 FM modulation of the transmitter channel (modulation in dB referred to the nominal

deviation)

❷ LCD display.(64 x 254 yellow-lighted display)

❸ 3 push buttons (membrane). The function of each button (upper, middle and lower) will be

readable from the context menu on the display.

❹ Push rotary knob. Rotate and push to select.

❺ Warning (YELLOW) and Alarm (RED) light indicator

D - MONITOR

Monitor 1 and 2: it actives monitor audio on headphone jack output (6.3mm - ¼”) for transmitter 1

and 2, respectively (a green LED is lighted when audio is enable). Audio level can be adjusted with

the rotary knob. The red led (CLIP) indicates a clipping in the audio monitor output.

E - POWER & LOCK

LOCK: it locks the editing of both the displays.

POWER: ON/OFF square powering button turns on/off the transmitter. When in OFF position both

phases are disconnected from power.

A

B

C

D

E

MTK952 User Manual

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5

REAR PANEL

❶ ❷❸❹ ❺❻ ❼ ❽ ❾ ❿ ⓫ ⓬ ⓭

MTK952N ⓮ ⓯

❶ ❷❸ ❹ ❺❻ ❼ ❽ ❾ ❿ ⓫ ⓬ ⓭

MTK952

❶ AC Power Plug AC mains power input, IEC Connector 90-264 Vac

❷ Product label with Serial Number, Options and Bandwidth

❸ Ground point To connect the rack to ground

❹ DC Power Plug (optional) DC power input, 10-16Vdc, Max 7A*

❺ label with IP address of Ethernet interface configured on the MTK952 (it can be modified using

the Manager application)

❻ Ethernet socket (RJ45) for connection to a network or computer

❼ AES/EBU (XLR 3 pin connector) for digital audio input TX1 and TX2

❽ Antenna output TX2 (RF output) BNC socket (N socket for MTK952N)

❾ Audio input left TX2 (balanced AF input) ¼” (6,3mm) jack/XLR-3 combo socket and ¼” jack

❿ Audio input right TX2 (balanced AF input) ¼” (6,3mm) jack/XLR-3 combo socket and ¼” jack

⓫ Audio input left TX1 (balanced AF input) ¼” (6,3mm) jack/XLR-3 combo socket and ¼” jack

⓬ Audio input right TX1 (balanced AF input) ¼” (6,3mm) jack/XLR-3 combo socket and ¼” jack

⓭ Antenna output TX1 (RF output) BNC socket (N socket for MTK952N)

⓮ M-S input/output connector TX2 (optional) for Master-Slave option, BNC socket

⓯M-S input/output connector TX1 (optional) for Master-Slave option, BNC socket

*NOTE: increased to 10÷28 Vdc since May 2015

MTK952 User Manual

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LCD DISPLAY: TRANSMITTER MENU

MTK952 info screen

Switch on the MTK952 and by pushing one of rotatory knobs (at the right of the display) all the

basic information are displayed:

Display of TRANSMITTER 1

Display of TRANSMITTER 2

❶ product and bandwidth

❷ serial number

❸ class and hardware version

❹ Firmware version: it includes application

firmware version and DSP firmware version

On the display of TX2, it is possible to check the max

level of power transmitted of the MK952, the

installed options and the companders.

Option:

- W05 / 0W2 /2W0 are the commercial codes to

identificate the max power transmitted

(50/2000/2000mW)

- DC indicate that the DC option (for DC power

supply) is installed

- MSB indicate that the Master-Slave board is

installed (MS option)

Status screen

After switch on, the transmitters display the Status screen

The main view has the following info:

❶ transmitter name

❷ current channel number and current tuning frequency

❸ current group number and group name

❹ current mode

❺ TV channel used for the current frequency

❻ current TX power setting

❼ current SWR (Stationary Wave Ratio)

❽ power supply type ( for AC power for DC power)

❾ menu

Thru the main menu on the LCD display and the LED bars for the AF level and modulation the user

has the complete monitoring in real time of the wireless channel in use.

MTK952 User Manual

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MENU TREE

MAIN

Ch-Gr

CH: 00 ÷ 59 GR: 00 ÷ 39

Frequency: 470÷800 MHz

Group name

Mode

ENR-Wisy Stereo / EVO Stereo / ENC-Wisy Stereo / SR Stereo / ENR-

Wisy / ENC-Wisy / IFB-Wisy/ EVO / SEN / SEN -d0 / COM-Wisy 25K /

COM-Wisy 20K / COM-Wisy 12K5 / USER 1..7 / *

1

TX on air at

startup

Yes / No

TX Power 10/20/ 30 /50 / 75 /100/ 150 /200 /250/400/500/750/1000/1200/1500 /2000 mW

EXT ATT compens.

enable / disable

Audio source

Input Analog / digital

Max audio level

-6 ÷ 18 dBµ

Audio gain left -20 ÷ 24 dBµ

Audio gain right -20 ÷ 24 dBµ

AF level meter input / modulation

Mono config *

2

mono/mono-R / mono-L

Auto switch DIG->AN

enabled / disabled

Equalizer

Bass

G: -12 ÷ 12 dB

Fr: 40 / 80 / 160 Hz

Mid

G: -12 ÷ 12 dB

Fr: 1.5 / 2.2 / 2.8 KHz

Q: 0.7 / 1.0 / 2.0

Treble

G: -12 ÷ 12 dB

Fr: 5.0 / 7.0 / 10.0 KHz

SAVE/NEXT/ EXIT

Options

Name

DISPLAY brightness 0 ÷ 15

DISPLAY timeout 5 ÷ 120

Info…

IP

Serial

Option

Range

Power profile

Temperatures

RF amplifier

RF generator

Micro

Power supply

FW

FW ver

Boot ver

App FW ver

DSP FW ver

Supply diagnostic

Neg Audio (-12v5)

Pos Audio (+12v5)

RF conv. (+5v)

RF amplif. (+3v3)

MicroP. (+5v)

MicroP. (+8v)*

3

Main RAW (+12v)

PLL tune (+22v)

Alarms

TX

configuration

master/slave

*

1

Depending on the customization

*

2

Only with a Mode “mono”

*

3

+3v3 for MTK952 “old version”

Only for MTK952N with M-S option

Only with option 2W0

MTK952 User Manual

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To access the configuration menu of the transmitter is necessary to press the rotary knob (at the

right of the display①).

To activate one of the items in the menu, press the corresponding button to the right of the

display (see picture hereafter②).

②

①

MODE

Name

Select for edit

Mono/stereo

Compander

HP filter

Flat / 20 /40 / 60 / 80 / 120 /

170 / 250 / 300 HZ

LP filter 3 / 4 / 12 / 15 / 20 KHz

Pre-emphasis Bypass / 10-750 µs

FM peak deviation 2 ÷ 100 KHz

TSQ frequency

30 ÷ 260 HZ

28 ÷ 34 KHz

TSQ deviation OFF / 100 Hz ÷ 5 KHz

MTK952 User Manual

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MAIN MENU

The first item on the menu tree is “MAIN”.

Ch-Gr

The CHANNEL-GROUP item enables the user to edit channel, channel group and frequency of the

selected item. Change, rotating the knob, the channel or the group of channels and confirm or exit

with the buttons. To edit the frequency of selected channel, press the middle button and change it

with the knob. Press the knob to move between MHz and KHz. Confirm or exit with the buttons.

As shown in the above picture, the display area has 3 rows with:

1) Channel number (0 to 60) and Channel frequency (in 5kHz step)

2) Number (1 to 40) and Group name (8 char.)

3) Group description (30 char.)

The MTK952 has 40 groups of 60 channels each. Normally this is too much for wireless

microphones applications.

Connecting with computer with WISYCOM Rack MANAGER software, it is possible to hide single

channels or even complete groups of channels: once hidden those items are not shown anymore

on the channels or groups selection. To show channels or groups hidden use again the WISYCOM

Rack MANAGER software.

Using this software it is also possible to lock channels or groups. When a channel is locked, it is not

possible to change the frequency from the front panel of the transmitter. Locking a group means

that all channels are locked. When a channel or a group are locked, at the left of the group name in

the Chan-Group menu will appear a lock icon . When the lock picture is shown, the central

button is not displayed, thus changing frequency is not possible.

Group name

The second item on the Main menu is GROUP NAME; with this function is possible to assign or

change a name to a group of channel. This short name (8 character) is displayed at the right of the

group number in the main display view. First chose the group and then press the knob. You will be

able to edit any character of the group name rotating the knob. Push the knob to edit the next

character. Confirm or exit with the buttons.

NOTE: when the Group name is SYNC (see synchronization) it is not possible to change it.

Mode

The MODE menu allows to assign a Mode setting at the transmitter. Rotating the knob it is possible

to change current mode among the modes available (for more detail see MODE menu).

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TX on air at startup

This menu allows to decide if turn ON or turn OFF the RF power of the transmitter while the

MTK952 is powering on.

If set to No: while the MTK952 is powering on, the RF output remains mute. The Status Screen on

the display shows “TX OFF “ and the set Group, Channel and frequency.

NOTE: When the RF power of the transmitter is OFF, all the led and the bars remain turned off.

Pushing the rotatory knob (at the right of the display) it is possible to activate the led and bars

(keeping the RF power OFF) and enter on the menu.

In order to activate the RF output press the 3

rd

button

at the bottom (see indication “ON” on the display).

If set to Yes: during the MTK952 power on, the

progress bar appears for 10 seconds.

During this interval (10 sec.) it is possible to switch off

the RF output. If no button is pushed, at the end of the

timer the RF output is enabled automatically.

TX power

This menu allows to set the power of the transmitter. Rotating the knob it is possible to change

current TX power setting among 10/20/50/100/200 mW (2W only for MTK952 with 2W option).

Push the SAVE button to confirm. In the same screen is showed the reflected power and the SWR

(Stationary Wave Ratio) sensing on antenna outputs.

The set TX power and the measured SWR are always

showed at the bottom of the display.

EXT ATT compens.

For future uses.

Audio source

This menu allows to set several parameters of audio input

Parameters

Range setting

Function

Input

digital/analog

To set the audio input

Max audio level

(only for analog input)

-6/0/6/12/18 dBu

To change (increase or decrease) the analogue audio input for

both R(right) and L(left) channels input

Audio gain left

-20÷24dB

To change (increase or decrease) the input level of the left

channel on DSP

Audio gain right

-20÷24dB

To change (increase or decrease) the input level of the right

channel on DSP

AF level meter

input/modulation

To set which AF level is shown in the two LED bars for the AF

levels (L=left & R=right levels): they can show AF input levels or

modulation levels (after the pre-emphasys and compander

phases)

Mono config

(only for mono Mode)

Mono/mono-R/

mono-L

To set the type of mono input

Auto switch DIG->AN

enabled /

disabled

If enabled and the digital signal is lost (parameter Input set to

digital), the transmitter takes the signal from the analog input.

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Equalizer

This menu allows to of adjusting the gain between frequency components (bass, mid and treble)

within the audio signal. There are 4 windows in cascade:

bass windows: allows to change gain and frequency of low frequencies

mid windows: allows to change gain and frequency of middle frequencies

treble windows: allows to change gain and frequency of high frequencies

eq windows: allows to save the equalization parameter or exit without save

Each window shows the following information:

❶ windows name

❷parameter to set (gain or frequency)

❸ graphic equalizer: frequency on

horizontal axis, gain on the vertical axis

❼

HP filter

set in the

mode

menu

❻

LP filter

set in

the

mode

menu

❺

set

frequency

❹

set gain

For each window it is showed the graphic equalizer which help to see the set parameters. Push the

rotatory knob to change the parameter between gain and frequency (the respective letter G or Fr

is highlighted during the setting phase) and

rotate it to change the value of the parameter. The set value is showed on the bottom of the

windows (see points ❹ and ❺ on the above image).

Push the lower membrane button to go on the next windows.

The following table recaps the settable values on the 3 windows:

Fr (frequency)

G (gain)

Q (Q factor)

bass

40/80/160 Hz

-12÷12dB (1dB step)

-

mid

1.5/2.2/2.8kHz

0.7/1.0/2.0

treble

5/7/10kHz

-

NOTE: High Q factor means narrow bandwidth. Low Q factor means wide bandwidth.

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Options

This menu allows to change some parameters of the transmitter or display some information

Parameters

Range setting

Function

Name

ex.

TRANSMITTER1

To change the name of the transmitter shown in the

Status screen.

12 alphanumeric characters (A-Za-z0-9, case-sensitive)

DISPLAY brightness

0÷15 step 1

To set the brightness of the display

DISPLAY timeout

5÷60 step 5sec.

60÷120 step 10

sec.

To set the display timeout for:

 decrease the brightness of the display and

 return to Status screen

Info

IP address

ex.

192.168.10.1

to show the IP address

Serial

ex. R1825694

to show the serial number of the product

(the same indicated in the product label)

Option

ex. 0W2

To show the option

Range

ex. 470-800

to show the frequency range (MHz)

Temperatures

RF amplifier

ex. 30°C

to show the temperature took near the RF amplifier (°C)

RF generator

ex. 31°C

to show the temperature took near the RF generator (°C)

Micro

ex. 33°C

to show the temperature took near the RF

microprocessor (°C)

Power supply

ex. 31°C

to show the temperature took near the power supply (°C)

FW

FW ver

ex. 1.1

to show the firmware version (it sums up Boot+App+DSP

versions)

Boot ver

ex. 0.2.d

to show the bootloader version

App FW ver

ex. 0.36.d

to show the application firmware version

DSP FW ver

ex. 0.61.d

to show the DSP firmware version

Supply

diagnostic

Neg Audio (-12v5)

ex. -12.42V

To show the power supply of the input audio stages

Pos Audio (+12v5)

ex. 12.36V

To show the power supply of the output audio stages

RF conv. (+5v)

ex. 5.33V

To show the power supply of the RF converters

RF amplif. (+8v)

ex. 7.82V

To show the power supply of the RF amplifiers

MicroP. (+5v)

ex. 5.14V

To show the power supply of the microprocessor and the

digital section

Micro.P (+3v3)

ex. 3.41V

To show the power supply of the microprocessor and the

digital section

Main RAW (+12v)

ex. 12.62V

To show the main power supply

PLL tune (+22v)

ex. 23.29V

To show the power supply of the PLL

Alarms

ex. 0

To show the number “n” of active alarms:

 n=0  0 active alarms

 n>0  n active alarms

When “n”>0, it is possible to enter in the alarm submenu

which allows to show the alarms list: a brief description

and an alarm code for each alarm.

For the complete list of alarms, see Alarm List section

Note: the complete software and hardware status is displayed on the MTK952 info screen

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TX configuration (only for MTK952N with option MS)

This parameter permits to use the transmitter in Master or Slave configuration.

When the MTK952N is in Master configuration, the signal is transmitted as a normal MTK952N

(without MS option) but at the same time, the signal is sent also in the M-S I/O BNC connector at

0dBm (without amplification).

When the MTK952N is in Slave configuration, everything that is before the power stage is excluded

and the device take as input the signal that enter in the M-S I/O BNC connector, amplifies the

signal (at the power set on the MTK952N-Slave) and transmits it.

MTK952N is able to detect a signal in the range -6dBm ÷ +6dBm (than the 0dBm sent from the

MTK952 Master).

Example of configurations: iso-frequency areas

MTK952N

Master conf.

MTK952N

Slave conf.

MFL-TT--

MFL-RR--

Fiber optic cable

up to several tens of kilometers

(depending on the fiber)

Area 3

Area 4

Audio input

MTK952N

Slave conf.

MTK952N

Master conf.

Coaxial cables

up to several tens of meters

(depending on the cable)

Area 1

Area 2

Audio input

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MODE menu

The second item on the menu tree is “MODE”. It allows to manage several modes.

Each mode is a setup saved in an external memory that allows to customized the transmission

changing some parameters of the DSP. There are 2 types of modes:

 PRESET mode: it allows to change only some parameters (the other are fixed). See

compatibility table at the end of the manual for more detail

 USER mode: it allows to change all the parameters. Currently 8 USER modes are available

The menu Select for edit allows to select the MODE to edit. Push the knob to select the mode and

push the button LOAD to load the previously saved parameters. It is possible to change the

parameter value only where the EDIT indication appears.

During this phases, the name of the MODE to edit appears on the left top of the

display ①. If the MODE to edit is the current mode

loaded on DSP (on the Main>Mode menu), “dsp”

abbreviation is shown ②.

Shown below the complete parameters list

Parameter

Range setting

Description

Changeable

PRESET

MODE

USER

MODE

Name

name of mode

no

yes

Mono/stereo

mono/stereo

type of transmission

no

yes

Compander

compander type

no

yes

HP filter

Flat/20/40/60/80/

120/170/250/300

Hz

High Pass filter

yes

LP filter

3/4/12/15/20 Kz

Low Pass filter

yes

Pre-emphasis

Bypass/10-750 µs

Pre-emphasis

mode

yes

FM peak

deviation

2÷100 KHz

Max peak deviation

(audio+tone squelch)

yes

TSQ frequency

30÷260Hz and

28÷34KHz

Frequency of Tone Squelch signal

yes

TSQ deviation

OFF/100Hz÷5kHz

Deviation of Tone Squelch signal

yes

①

②

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Synchronization

The SYNC function is useful to tune a transmitter on the same frequency of the receiver via the IR

interface.

 Enable the IRDA on the receiver and place the IR windows of the receiver in front of the

IR interface of the transmitter as indicate in the below image.

 Press the SYNC button on the transmitter: the following message is showed on

both the displays

 Using the membrane buttons of the desired transmitter (TX1 or TX2) select:

 TX->RX to set the receiver at the same frequency of the transmitter:

the transmitter will send to the receiver some parameters (frequency, channel,

group and transmitter’s name) and after synchronization, the receiver shows the

name of the transmitter

 RX->TX to set the transmitter at the same frequency of the receiver:

the receiver will send to the transmitter some parameters (frequency, channel,

group and receiver’s name) and after synchronization, the transmitter shows the

name of the receiver (ex. SINGER_1)

If the operation is not possible, (i.e. the frequency range of the transmitter is not compatible with

the frequency of the receiver or vice versa), the display shows an error message.

If the synchronization is successful, the display of the devices shows number of channel and group

or SYNC channel according to the frequency plan memorized on the Wisycom product:

RX->TX

TX->RX

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CASE A: if frequency, channel and group are the same in the two devices, channel and group are

also displayed (ex: CH00: 566.000, GR39: Unlock)

CASE B: If frequency, channel & group of the transmitter are different from those of the receiver,

the transmitter shows only the frequency after the word SYNC. (ex: SYNC: 620.000)

Ex: RX->TX

Message displayed after the synchronization

Status screen

Case A

Case B

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Scan

The SCAN function allows to display a results of a scan previously done from a MPR30-IEM or

MPR30-ENG.

 Do a scan with an MPR30-IEM

 Enable the IRDA on the receiver or select the function Deploy on the SCAN menu (only

for MPR30-ENG with FW>1.9 and MPR30-IEM with FW>1.6) and place the IR windows of

the receiver in front of the IR interface of the transmitter

 Press the SCAN button on the transmitter: the following message is showed on both the

displays.

:

 Using the membrane buttons of the desired transmitter (TX1 or TX2) select GET

 Wait some seconds (the receiver sends all the data of the scan to the transmitter)

 The display of transmitter1 show the scan result in graphic way, while the display of

transmitter2 gives more detailed information of the result (according to the position of

the cursor in display1)

Ex. FREQUENCY SCAN

Display of Transmitter1

Display of Transmitter2

Ex: GROUP SCAN

Display of Transmitter1

Display of Transmitter2

MTK952 User Manual

rev.08

18

 Use the membrane buttons on display2 to set the frequency to TX1 – TX2

NOTE: The results of the scan are saved on the volatile memory of the transmitter:

- After the switch off of the transmitter the data are lost.

- It is possible to re-load the data of a previous scan. Pushing the SCAN button and

selecting VIEW

MTK952 User Manual

rev.08

19

Alarm List

When an alarm occurs, the MTK952 can do one or more of the following acts:

A. Show a message on the display

B. Turn on the yellow or red alarm led

C. Insert the alarm on the alarm list in the MAIN>Options>Info>Alarms menu

The alarm can be related to a specific transmitter (TX1 or TX2) or general.

Shown below the complete alarms list:

Alarms

Code

Type

Message on display (A)

Led

(B)

Alarm list (C)

TX Power Mismatch

-

TX

ATTENTION: antenna mismatch!

High SWR on Tx out

yellow

no

TX Power reduced

0x05

TX

ATTENTION: antenna mismatch!

High SWR on Tx out. Rf pwr

reduced

yellow

Tx power

reduced

Timeout 5 sec on PLL

0x84

TX

ATTENTION: RF PLL lock lost

red

Rf PLL lock lost

Errore bus I2C

general

EEPROM access error

(only on TX1)

red

Error on I2C

bus

Timeout 5 sec on PLL

OL969

0x84

general

ATTENTION: OL PLL lock lost

(only on TX1)

red

OL PLL lock lost

High internal

temperature

0x04

general

ATTENTION: internal temperature

high

(only on TX1)

yellow

High internal

temperature

Fan #1 doesn't work

0x02

general

ATTENTION: fan #1 does't work

properly

(only on TX1)

yellow

Fan #1 doesn't

work

Fan #2 doesn't work

0x03

general

ATTENTION: fan #2 does't work

properly

(only on TX1)

yellow

Fan #2 doesn't

work

Recovered

configuration and

calibration data from

copy1 on the

memory

0x80

general

no

Mem. copy1

recovered

Recovered

configuration and

calibration data from

copy2 on the

memory

0x81

general

no

Mem. copy2

recovered

Load default

configuration and

calibration data

0x8D

general

no

Mem. init.

Service req.

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