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IMPORTANT SAFETY INSTRUCTIONS 

Read these instructions.

Keep these instructions.

Heed all warnings.

Only use attachments/accessories spec-

   ified by the manufacturer.

Power Cord and Plug

Do not defeat the safety purpose of the 
polarized or grounding type plug. 

A polarized plug has two blades with 
one wider than the other. A grounding 
type plug has two blades and a third 
grounding prong. The wide blade or the 
third prong are provided for your safety. 
If the provided plug does not fit into your 
outlet, consult an electrician for replace-
ment of the obsolete outlet.

Protect the power cord from being walk-
ed on or pinched particularly at plugs, 
convenience receptacles, and the point
 where they exit from the apparatus.

Cleaning 

When the apparatus needs a cleaning, you 
can blow off dust from the apparatus with 
a blower or clean with rag etc. 

Don't use solvents such as benzol, alcohol, 
or other fluids with very strong volatility and 
flammability for cleaning the apparatus body. 
Clean only with dry cloth.

Servicing

Refer all servicing to qualified personnel. To 
reduce  the risk of electric shock, do not perform 
any servicing other than that contained in the 
operating instructions unless you are qualified 
to do so .

Servicing is required when the apparatus has 
been damaged in any way ,such as power 
supply cord or plug is damaged , liquid has 
been spilled or objects have fallen into the 
apparatus, the apparatus has been exposed 
to rain or moisture, does not operate normally, 
or has been dropped.

Follow all instructions.

instructions. Do not install near any heat 
sources such as radiators, heat registers, 
stoves, or other apparatus (including am-
plifiers) that produce heat. Do not block 
any ventilation openings. 
No naked flame sources, such as lighted 
candles, should be placed on the apparatus.

8

4.3 OPERATING FREQUENCY MATCHES BETWEEN THE RECEIVER AND 

      THE TRANSMITTER

 To make the operating frequency matched between the transmitter and the receiver, 

 adjust the transmitter and receiver manually with the adjusting bar for the same
 frequency. Please refer to the following table for selecting frequency.    

 

Caution

: a: If several apparatus are used at the same time, the same frequency can not

 be used for them.

 See the table F6

 

CH0~CHF

0

1

2

3

4

5

6

7

8

9

A

B

C

D
E

F           

b: Ten channels can be used simultaneously at most. They are respectively 

    CH0, CH1, CH3, CH4, CH6, CH7, CH8, CH9, CHE, CHF. The rest 6 channels

    are available for customer's choice.  

 FREQUENCY

 See the table F6

 See the table F6

 See the table F6

 See the table F6
 See the table F6

 See the table F6

 See the table F6

 See the table F6

 See the table F6

 See the table F6

 See the table F6

 See the table F6

 See the table F6

 See the table F6

 See the table F6

This device complies with Part 15 of the 
FCC Rules. Operation is subject to the
following two conditions: (1) this device may
 not cause harmful interference, and (2) this
 device must accept any interference received, 
including interference that may cause undesired 
operation.

WARNING: 

changes or modifications not expressly 

approved by the party responsible for compliance could 
void the user's authority to operate the equipment.

Summary of Contents for UB-81DV

Page 1: ...886 4 22313737 Fax 886 4 22346757 http www show pa com e mail sekaku sekaku com All rights reserved to SEIKAKU All features and content might be changed without prior notice Any photocopy translation...

Page 2: ...n mode Carrier frequency band Frequency response Frequency stability T H D Modulation mode RF output power Dynamic Tone frequncy Curent drain Max Deviation Battery Microphone Capsule 4 band choice Dim...

Page 3: ...Protective Grounding Make sure to connect the protective grounding to prevent any electric shock before turning ON the apparatus Never cut off the internal or external pro tective grounding wire or di...

Page 4: ...rate normally or has been dropped Follow all instructions instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including am plifiers that produc...

Page 5: ......

Page 6: ...e the squelch responds to the detected voltage and cannot distinguish between wanted signal and noise Besides that a too high squelch threshold also decreases the usable range The squelch range is 95...

Page 7: ...enser microphones 3 3 1 1 4 4 2 2 Pin 1 GND Pin 4 for Dynamic or condenser microphone ANTENNA It is the flexible antenna To get effective transmission never cover the antenna with hand clothes etc dur...

Page 8: ...OWER SWITCH 2 2 The unit may be powered from a dry or rechargeable battery BATTERY COMPARTMENT 7 7 This adjusting bar is placed in the microphone It is used to adjust squelch control and band selector...

Page 9: ...vice versa AF PEAK LED This LED lights up when the signal reaches PEAK and sound is distorted 2 2 3 3 It is used to adjust the volume of receiver VOLUME CONTROL 5 5 THE REAR PANEL DC JACK This DC jac...

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