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Instructions 

Changing the receiver’s channel 

Press the synchronizing button of the 
transmitter. 

The transmitter's LED will grow to denote 
synchronizing signal transmitted. 

The channel/frequency of the receiver will 
change and then the synchronization is 
complete.

 

 

 

Changing the transmitter’s channel 

Press the SYNC button of the receiver 

The receiver’s LCD will show 

 to 

denote synchronizing signal being sent.  

The channel/frequency of the transmitter will 
change and then the synchronization is 
complete. 

If it doesn’t work check that you have the IR sensor panels aligned, that they are facing each 
other, devices are within 10~30cm of each other, and try again. 

 

SQUELCH (SQ) adjusting 

When  interference  is  encountered  try  reducing  the  sensitivity  of  the  receiver,  thus  less 
susceptible to interference. To operate the squelch setting: 

Press 

SET

 button to turn to the squelch setting page and the LCD will display current 

squelch level (LE-02). 

     

 

Press UP(

) and DOWN(

) button to select a new squelch (sensitivity) level between 

1 and 10. 

     

 

After a squelch (sensitivity) level is chosen, press 

SET

 button or wait 3 seconds to 

store the setting. 

     

 

Since increasing the squelch level will also reduce the reception 

distance, it’s recommended to 

choose the lowest level that can eliminate the interference. 

CH

FREQ

SQ

RF

AF

A B

0 0 1

630000

VOL

CH

FREQ

SQ

RF

AF

A B

0 0 1

630000

VOL

SDR-6120

Wireless Receiver

SET

SYNC

SET

SYNC

SET

SYNC

SQ

LE-02

SET

SYNC

SQ

LE-06

SET

SYNC

SQ

LE-06

Summary of Contents for SDR-6220

Page 1: ...IAYO ELECTRONICS CO LTD SDR 6220 SDR 6120 UHF Dual Channel 2 Way Sync True Diversity Diversity Receiver CH FREQ SQ RF AF A B 00 1 630000VOL CH FREQ SQ RF AF A B 00 1 630000VOL SDR 6120 Wireless Receiver SET SYNC SET SYNC ...

Page 2: ...thout prior notice Important 1 Please make sure that the output DC voltage range of the switching power covers that specified by the receiver before turning it on 2 The RF meter bars and antenna diversity indicator will appear to denote RF signal received after turning on the transmitter 3 The receiver and transmitter must be the same frequency 4 While using the transmitter the audio meter bars wi...

Page 3: ...C SET SYNC A N T A D C IN 12V 1 G 2 3 1 G 2 3 BALANCED OUT 2 ANT B BALANCED OUT 1 OUTPUT 2 OUTPUT 1 LEVEL MIC LINE MIXED SEPARATE OUTPUT MODE SET SYNC VOL VOL 12 IrDA synchronization button SET button IR sensor area UP button DOWN button Antenna A TNC DC input CH 1 unbalanced audio output CH 1 balanced audio output Mixed audio output switch MIC LINE output impedance switch only for unbalanced audi...

Page 4: ...T button to make the frequency icon appear on the bottom 2 Press UP and DOWN button to find and locate a clear interference free channel 3 After a channel is chosen press SET button or wait 3 seconds to save the setting Channel synchronizing between receiver and transmitter Align infrared areas of the receiver and transmitter within 10 30cm FREQ SET SYNC CH FREQ RF 002 650 250 SET SYNC CH FREQ RF ...

Page 5: ...hin 10 30cm of each other and try again SQUELCH SQ adjusting When interference is encountered try reducing the sensitivity of the receiver thus less susceptible to interference To operate the squelch setting 1 Press SET button to turn to the squelch setting page and the LCD will display current squelch level LE 02 2 Press UP and DOWN button to select a new squelch sensitivity level between 1 and 1...

Page 6: ...OWN button to switch between L OFF unlocked and L ON locked The UP and DOWN buttons don t function under L ON status 3 After a locking status is chosen press SET button or wait 3 seconds to store the setting Rack mounting The receiver can be cabinet mounted by either one or two units If only one receiver is to be mounted an optional kit is available and it s installed as shown in Fig 1 If two rece...

Page 7: ...d MIC IN Separate MIC IN Mixed LINE AUX IN LINE AUX IN MIC IN MIC IN Level Mode Level Mode Level Mode Level Mode LINE SEPARATE LINE MIXED MIC SEPARATE MIC MIXED A N T A D C IN 1 2 V 1 G 2 3 1 G 2 3 BALANCED OUT 2 ANT B BALANCED OUT 1 OUTPUT 2 OUTPUT 1 LEVEL MIC LINE MIXED SEPARATE OUTPUT MODE A N T A D C IN 1 2 V 1 G 2 3 1 G 2 3 BALANCED OUT 2 ANT B BALANCED OUT 1 OUTPUT 2 OUTPUT 1 LEVEL MIC LINE ...

Page 8: ...The transmitter should also be at least 1m away from a wall or metal surface to minimize reflections The transmitter should also be at least 1m away from the receiver Keep antennas away from noise source such as motors automobiles neon light as well as large metal objects A N T A D C IN 12V 1 G 2 3 1 G 2 3 BALANCED OUT 2 ANT B BALANCED OUT 1 OUTPUT 2 OUTPUT 1 LEVEL MIC LINE MIXED SEPARATE OUTPUT M...

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