OKAYO Electronics EJ-7XT Wireless Bodypack Transmitter User Manual

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Document ID	1007852
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Document Description	Users Manual
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Document Type	User Manual
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Date Submitted	2008-09-26 00:00:00
Date Available	2008-09-26 00:00:00
Creation Date	2008-08-07 15:16:41
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Document Lastmod	2008-08-07 16:00:32
Document Title	Users Manual
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USED'S GUIDE
WIRELESS PORTABLE SOUND SYSTEM
Compoc‘r, Ligh‘rweigh’r
Cleor sound quoli'ry
High ou’rpui power
Operating Manual for GPA-750W Series
Simple Introduction
Thank you for purchasing this wireless portable sound system
GPA—750W series. Rich, full sound and tons ofpower, the GPA—750W
series is ideally suited for large areas. The Wireless, music, amplifier
and speaker are conveniently combined into one box. This manual
includes the complete functions and operations of the Wireless
portable sound systems. Please read this manual carefullyin order to
operate and use this system to its fullest potential.
Front Panel Configuration of GPA-750W Series
GPA-750W Series
A: Handle D: Speaker Mesh
B: 1" Horn E: HeorSink
C: 8"WooferSpeoker
Handle
Horn
Woofer Speaker
Speaker Mesh
” / “ r
rmmrir‘fi'r
Heat Sink
Rear Panel Configuration of GPA-750W Series
GPA-750WU
A: Wireless Microphone Sysiem E: Aux ln/Oui
B: Anii-ShockCD/MPS Player F:Speok Our
C: Power Switch G: Power Supply
D: Operating Sysiem
Receiver Module
CD/MP3 Player
Power Switch
Operating System
Speaker Out
Aux In/Out
Power Supply
GPA-750WE
A :Wireless Microphone System E :Aux In/OuT
B :AnTi-ShockCD/MP3 Player F :Speok OuT
C: Power SwiTCh G :PowerSupp|y
D: OperatingSys’rem H1: Digi’rol Echo SysTem
K I Receiver Module
0 o
‘_' O ‘ Q ’ — CD/MP-3 Player
0 9
° Digital Echo System
Power Switch
1 4. Operating System
° @@ (Q)
99. T\“— Speaker Out
{ \_ Aux In/Out
0 O
/.
, Power Supply
0 ‘ (\(‘01\)
O 0
~ /\ (d
k ° °
GPA-750WT
A :Wireiess Microphone System E :Aux In/Out
B :AnTi-ShockCD/MPB Plover F :Speok Out
C: Power Switch G :PowerSuppIy
D: Operating System H2: Audio Link System
Receiver Module
CD/MP3 Player
Audio Link System
Power Switch
Operating System
Speaker Out
Aux In/Out
Power Supply
Description of Functions for GPA-750W Series
A.Wireless Microphone System
1, LCD display
2. A/B diversity indicator
3. RX audio indicator
4. AF audio level indicator
5. Setting enter
6. Up/Down selector
O—OOD
7. Power switch &mic. Volume '
NE RX AF
$51
(1)(2) (3)(4) (5) (6) (7)
B.Anti-ShockCD/MP3 Player
1.Programming the track
2.Power switch
3.LCD display
4.Shuffle/ repeat
5.Stop CD/MP3 play/ eject for disc out
6.Search and play the previous track
7.Search and play the next track
8.Play and pause CD/MP3
9.CD volume
10.CD slot
1 l.Folder
(1) (10) (4) (8) (5)
© © © Q
C. o C] (I) ©
D C)
O O
(2) (3) (11) (6) (7) (9)
C. Power Switch
1. Power LED
2. Charging Indicator
3. Power on/off switch
D. Operating System
1. Mastervolume control
2. Treble adjustment
3. Bass adjustment
4. Mic. Volume control
E. AuxIn/Out
1. Line in for RCAjack
2. Line out for RCAjack
3. Mic. In for XLR or phone jack
F. Speaker Out
1. Speaker out
G. Power Supply
1. AC switching power supply
2. Battery
3. Battery cover
(1)
(2) 40 E
(3) CHARGE
POWER
(1) (2)
O @ é /
10 ID 10 MlN MAX
MASTER TREBLE BAss MIC
LINE IN LINE OU'I
(1) (2)
MINBQ [fl
(1)—Q
SPEAKER
(1)
(2)—
(3)
H1. DigitalEcho System (for GPA—750WE only)
. Power switch and volume control
. Repeatedtimes control
. Delay times control
. Wired mic. 1 volume control
. Wired mic. 2 volume control
. Wired mic. 1 input for phonejack
. Wired micl 2 input for phonejack
flow/numb),—
©99 (ONO) @ ©96E
MICZ MICZ
(1) (2) (3) (4) (5) (6) (7)
H2. Audio Link System (for GPA-750WT only)
1, Antennaseat
2. LCD display
3.TX audio indicator
4. Low audio level indicator
5, High audio level indicator
6. Setting enter
7. Up/ Down selector
8. Power switch and volume control
f; , O
O o 0 D CHARGE
1x AFLEVEL SET
(1) (2)(3)(4)(5) (6) (7) (8)
_,‘
Description of Functions for Handheld Microphone
Front Panel
Mesh Screen: Protects cartridge.
Contains spongeto eiiminoie popping
_ Mark Ring: ConnecTs The cartridge and
The main body
Main Body. Contain Wireless Transmitted
‘/
PCB.
SET button/Frequency settings
LCD panei: Channel and frequency appearance
UP and DOWN button: Adiustments ofchannels.
LED Light: Show The power status of microphone.
PowerSwiTch: TurnThe microphone
Charging hoie: Charge The microphone by
L?! connecting This input with adaptor
Description of Functions for Handheld Microphone
Rear Panel
Volume Control: Threelevel settings, including
mute, medium and loud.
<3 <3 2
5 % 9
nine an: “WE
+ + r
High MID MUT
WA \
- Pushing point: Slide the battery cover down by
pressing here.
4 Battery Cover
p Lower Housing: This is used to fix the battery cover
e so thotit won't be fallen off,
Description of Functions for Body Pack Transmitter
1. 315mm Mic. inputjack
. Power switch “°"°
. Mute button @"
.Antenna
. Power light
Built—in Mic. , <1) ‘2’ ‘3’ ‘4’
. ChargingJack "
. LCD light
9. Setbutton
10. Up/Down button
11. Sensitivity control
12. 3.5mm Auxinputjack
13. Belt clip
14. Battery compartment
15. Battery cover
chlQm-ikwlx)
(13)
(14)
mam-m (11)
02>
(15) E
Cautions Before Using the System
1. There is AC switching power built inside the system. Before using AC
power, please notethat the voltage is at 100~240V, and then connectthe
AC power cord from the AC IN (G3) to the outlet.
2. Forfirst time use, please charge the battery over 8 hrs, to maintain the
good quality and operating of the battery.When charging, the charging
indicator (62) lights RED. When charging almost full, the indicatorwill
flash Red and Green. Afterthe batteryis fully charged, the indicator lights
Green.
3. This system hasthe circuitof auto protection for battery. It could protect
the battery from being overcharged and overused. When the power
switch LED (G1) lights red, it showsthat the power remain only 30%.
When the power switch keep flash, then itwill turn off automatically soon,
to protectthe battery.
Installation and Operation of Portable Sound System
A. Wireless Mic. Receiver (Please see the page 7)
This system can be built in one ortwo receiver. for PLL 96/16-CH design, the
channel could be selected freely.
a. Turn the power switch (A7) clockwise to turn onthe receiver.
b. The LCD display(A1) will show On andthen the channel used before
turning offlast time.
0. To selectthe channel, press the set button (A5) and the channel in LCD
flash. Press up or down button (A6) to selectthe channelto use, and then
press enterthe setting.
d. Turn the volume control to the proper position.
e. When receiving the signals, the NB diversity indicator(A2)wiIl IightRED
or Greento show the diversity condition. The RX indicator(A3) will show
the receiving condition and the AF indicator(A4) will showthe audio level
condition.
B. Anti-Shock CDIMP3 PIayer(PIease seethe page 7)
a. Push the power (BZ) to turn on the player. Put the CD in the CD slot(B10)
or push Stop/Eject button (BS) to take out the CD insidethe slot.
b. Press Play/Pause button (BS) and turn the volume control (B9) clockwise
to startor pausethe playing, and adjustthe propervolume. And then push
Stop/Eject button to stop or changethe CD or MP3 disc.
0. Press forward (B7) or Reward (BB) button eachtime could forward or
backward the song sequence. Keep pushingthe forward or reward button
could forward or backwardthe playing song.
d. Repeat/Shuffle(B4) has three modes, onefor repeating one song, and the
other forrepeating all songs. When press to Shuffle mode,the songs will
be played randomly.
e. Program setting: .
Step 1:Press Prog button (B1) to startthe program setting
Step 2: Select the song (please see pointc. and f.)
Step 3: Press Repeat(B4) to enterthe program
Step 4: Press Play(B4) to playthe programmed songs in memory.
>‘< Please notethat the program will reset once press the Prog buttom
again.
f. To selectthe foldertor MP3, press Folder button (B11), and then use
Forward or Reward button to select.
c. Tone Control (Please seethe page 8)
a. Turnthe Treble control (D2) to adjustthe trebletone byturning thetreble
control counterclockwiseto decreasethe treble, and turn clockwise to
increase thetreble. lfthe control stay center, the sound will be original.
b. Turn the Bass control (03) to adjustthe trebletone byturning the bass
control counterclockwiseto decrease the bass, and turn clockwise to
increase the bass. lfthe controlstay center, the sound will be original.
D. Aux InIOut (Please see the page 8)
a. This system contains Line In, Line Out, and Mic. In for external audio
application.
b, Insertthe Line In (E1) with RCAjack to add external audio sources, such
as CD, or iPod. Turn Master controlto adjustthe volume.
0. Insertthe Line In (E2) with RCAjack to output the signal to other audio
applications, such as cassette recorder, or mixer.
d. Insertthe Mic. In (E3)with XLR or6.3mm phonejackto usewired
microphone. Turn the Mic. In (D4) to adjustto the proper volume.
E. Speaker Out (Please see the page 8)
a. This system could be connected to other speaker.
b. Insertthe Line In (E1) with RCAjack toadd externalaudio sources, such
as CD, or iPod. Turn Master controlto adjustthe volume.
0. lnsertthe Line In (E2) with RCAjack to output the signal to other audio
applications, such as cassette recorder, or mixer.
d. Insertthe Mic. In (E3) with XLR or phonejack to use wired microphone.
Turn the Mic. In (DA) to adjustto the proper volume.
F. Digital Echo System (Please see the page 9)
a. Turn the power switch (H1-1) clockwise toturn on the echo system.
b. Turn the repeat button (H1-2) and delay button (H1-3) to adjustthe echo
effect required.
c. To use wired microphone, insert the Mic. In(H1-4) and Mic. In 2(H1-5).
Then adjustthe volume by turning Mic. 1(H1-6) and Mic. 2 (H1-7)
clockwise tothe proper position.
G. Audivo Link System (Please see the page 9)
a. Turn the power switch (HZ-8) clockwise toturn on the transmitter.
b. The LCD display(H2-2) will show On andthen the channel used before
turning offlast time.
0. To selectthe channel, press the set button(H2-6) and the channel in LCD
flash. Press up or down button (HZ-7) to selectthe channelto transmit,
and then press setbutton again to enterthe setting.
d. Turn the volume control (HZ-8) to'the proper position.
e. Whentransmitting the signals, the TX indicator(H2-3) wiII IightGreen to
show thetransmitting condition.TheAF Level indicator lights Yellow
(HZ-4) to showthe low audio, lights Red (H2-5)to showthe high audio.
Installation and Operation of Handheld Microphone
A. Battery-Insert Steps:
1.Turn off the microphonebefore inserting batteries.
2. Take the lowerhousing off.
3. Press the upper point of battery cover (see xx) and slide it down.
4. Insert 2disposable batteries (2 pieces of 1.5Vtype) or
rechargeable batteries (2 pieces of 1.2V type).
5. Please be awareof its polarity while inserting batteries.
6. Slide the battery coverback to the original position.
7. Put the lowerhousing back tothe lower partofthe microphone.
B. ”Burn-On Steps:
l.Tum the power on bykeep pressing itspower switch forabout one totwo
seconds till its LED light turnsto RED.
Importantly, please take off the lower housing while pressing its power switch.
Besicles, only click the bottom side ofthis switch, this microphone can be
Operated.
2.While this LED light reveals asthe same diagramas you can see below, it
means you haveturn the microphoneon successfully.
CH. DE ; The 8‘" Channel.
707 9” z : Ifyou want to know which frequency you are utilizing,
. N
please press thebutton of UPor DOWN so as to seethe
Frequency.
C. Turn-Off steps:
].Please keep pressing the power switch for about one to two seconds
till the LCD panel appears OFF and then it will be turned off.
OFF
D. Frequency Settings:
l.Press SET for aroundZ seconds.
2. The LCD panel will turn to bright and keep flashing.
3. Channelcan be increased while pressing the button ofUP.
4. Channel canbe decreased whilepressing the buttonof DOWN.
5. After confirming thechannel you want,click the button of SET again
and this channel has then been set up.
E. Meanings ofLCD appearance:
l. [HUB While thebattery shows threesquares, it meansthis
microphone is full charged.
2. Q [HUB : Whilethere is onlyone square, themicrophone is
insufficient electricity.
3. :While itshows nothin inthe batter , this micro hone will
D 04.08 g y p
be turned off automatically afterflashing three times.
F.Battery Charging Steps:
1.Noted the specificationofbatteries youwill charge needs to beNiMH
AA 1.2V. (Its charging function canonly be limitedto the batterieswith
2100mAh or even lower amperage.)
2. Itwould be better ifyou use the adapter our company offers, whose
output is DC 5V, to charge the microphone.
3. Charging status:
a) ' The square ofbattery is flashing: Non—Rechargeable
3' [H_ 08 batteries orNon-Insert batteries. Please check batteries.
b) \ \ \ 1 / / The squareofbatteryis flashingand brightLCD:
“1“; iF'l‘ , td -t t btt '.
/ L‘F/ (J? \ a1mg rus e orover empera me a enes
/ \
c) The squares of battery show up accordingly: Batteries
2 CH 049 are charging successfully.
D) ' Three squares are shownup at the same time: Batteries
[HUB Have been full charged.
* Please note the microphone will be turned off automatically whileit is being
charged.
G. Trouble Shooting:
1. LED light doesn't appear while pressing power switch.
a) Please check ifyou have insertedbatteries or ifbatteries are less
Electricity.
b) Please checkif you putthe polarity ofbatteries in the correct way.
2. LCD shows E,- '. while youturn itoff.
a) Click buttons of SET, UP and DOWN at the same time in orderto turn the
microphone offautomatically. Afterthat, you canturn it on as the usual
way. (see B)
b) The microphone will beturned offautomatically after this graph flashes
about ten times. Thereafter, press buttons ofSET, UP and DOWN at the
same time. Then, when youpress its powerswitch for aroundone to two
seconds, noted tokeep three buttons mentioned above. Please keep away
the power switch when LCD panelappears the word"ON” and flash once.
Finally,you can turnthe microphone onas usual. .
c) Ifthe solutions a) and b) can't resolvethe problem youface, please
send the product back to us for repairing.
3. LCD panel shows unusual graphs.
a) Take off the batteries from themicrophone and re-insertthem.
4. No sounds.
a) Check if the frequency ofthe transmitteris the same as that ofthe
Receiver.
b) Checkifthe volume ofthe transmitter and receiveris too slow.
0) Check if the distance between the transmitter and the receiver is too
far.
cl) Check ifthe transmitter orthe receiver istoo close to any metal
Materials or products.
5. Voice Disturbance.
a) Please select different frequencywhile two transmitters are
operated at the same time so as to avoidany potential disturbances,
such as interference, unclear voices or no responds, occurred.
Please check ifany other wireless products, such aswireless
microphones, televisions orradios and soon, nearby. If so,please
Tune and adjust the frequency to the one, which is notinterfered.
n. Q&A
1. Q: How long can the microphone be operated while it is full charged?
A: Chargeable batteries with 1300mAwill take about8 hours andthat with
1600 mAwill take thoursi However,ifthe batteriesyou use are disposable,
the microphone can be operated for around 13 hours while it is full charged.
2. Q: Howlong does the microphone need to be charged while its chargeable
batteries are used up?
A: It will take around 4 to 5 hours ifthe batteries are 1300 mA which is our
Standard batteries.
Installation and Operation of Bodypack Transmitter
A. Battery-Insert Steps:
1.Turn off the microphone before insertingbatteries.
2.Take the battery cover off.
3.1nsert 2disposable batteries (2 pieces of 1.5VAAtype)
or rechargeable batteries (2 pieces of 1.2V AA type).
4.Please beaware ofitspolarity while insertingbatteries.
5.Slide the battery coverback to its originalposition.
B.Ttirn-On Steps:
1.Switchthe powerto ON position
2.Powre Light will turn to RED then LCD will show in order of "On“ on
09.03
Ifthere isno the otheroperation, LCD lightwill disappear automaticallyin 5
seconds
=> "battery statusand channel"
C.Frequency Settings:
1.Press SETbutton for around 2 seconds.
2.The current frequency will keep flashing then release SET button.
3.Pressing UPor DOWN button for selecting channels.
4.When channelis selected press SET button again. The current frequency will
stop flashing and stay on the channel selected.
D.Meanings ofLCD appearance:
l. [H'DB Itshows channel 08 and the statusof battery is full.
2. QCH DB Itshows low-battery, batteries needto be changedor rechargeable
—'_ batteries needto recharge.
3.1DIH.DB While battery status isflashing it means out of powerand will
keep flashing forthree times then switch offautomatically.
E. Battery Charging Steps:
Ensure the batteries are rechargeable batteries.
Switch Power to OFF position.
Insert EJ-7LT into its own designed intelligent chargerstand (HDC—809).
Then it will recharge automatically.
For more details of charger stand pleaserefer to HDC—809user guide.
9.394"?
F.Turn-OffSteps:
1. Switch the powerto OFF position.
2. LCD light will appear and show "OFF"
If there is no the otheroperation, Power Light,LCD will switch off automatically.
G. Trouble Shooting
l.Followingthe TurnAOn steps and it does notwork -
a)Please checkif batteries insertedor if batteriesare outofelectricity.
b)P1ease check if polarity of batteries are on thecorrect position.
2.LCD shows Err while turn on.
a)Switchpower OFF, Then Follow the Turn—On step resume again.
b)If following up above procedureand still can not solve theproblem, please
send back tomanufacturer.
3.1nstallMicrophoneon Transmitter and no out put from Receiver.
a)P1ease checkif Transmitter and Receiverare on the same channel.
b)Please check if “MUTE" is switched off.
c)Please check ifthe volume control ofreceiver is switched to a proper position.
d)P]ease checkif Transmitter and Receiverare within the operating range.
4.Voice Disturbance.
a)When two Transmitters are being used, please selectdifferent frequencies. If
voice disturbance still occurs please select the other channel until it is not
interfered.
b)Please check ifany other wirelessproducts, such as wireless microphones,
televisions orradios and so on, nearby. As these products might cause
interference. If so,please adjust theother frequencies.
Maintenance
Avoid Excessive Heat
Don't leave transmitter or receiver in hot sun, on a radiator, or near other
sources ofhigh temperature.
Avoid Rough Handling
Transmitter and receiver may be damaged if dropped.
Fully charge Batteries
Before storing, please fully charge the batteries in both transmitter and
receiver. If possible, please recharge once a month during storation and
again before first use.
Remove Batteries
Remove the internal batteries when storing the unit for a long breakor
vacation.
Replace Batteries
Danger ofexplosion ifthe batteries are incorrectly replaced.
Replace only with the same orthe equivalenttype.
Battery Terminals
Keep the contacts clean and inspectthem often to ensurethey are not
corroded. Ifthey become corroded, polish them with a pencil eraser.
Danger of explosion if the battery is incorrectly replaced.
Replace only with the some or the equivalent type.
F©C€®
Specifications
Portable AmplifierSpeaker
0 Sensitivity 95 dB. 1Watt@ ‘l M
0 Maximum SPL 112dB
8" LF woofer. 1" HF horn
0 Frequency response ‘ 20 Hz ~ 20 kHz (audio)
0 Spares ‘
u Receiver module DR-701 " 2@ diversity
0 Output power 50 W RMS, 80W MAX.
0 Signal to noise ratio
a cD/MP3 player
0 Audio Ilnk TX Built-in TX-701 transmitter
0 Audio Input XLRvMicr In, RCA-Line in
a Audio output RCA-Line out. SPK Out (unswitched)
a Control volume Micr, Line, Bass. Treble, Master
0 Power requirement 96-264V AC/32V DC, switching power supply
12V, 2.9Ah' 2 (Lead-Acid) rechargeable batteries
0 Battery
0 Operating life 3 — 4 Hours
0 Charging time 4 ~ SHours
0 Dimensions (D‘W’H) 300 ‘ 230 " 470 mm
a Weight 12 kg
Bodypack Transmitter
0 Mike
Condenser mic.
0 RF output
10mW (according to regulation)
a Spurious emission
Less than 250 mW
0 Display status
LCD indicator displays channel orfrequency,
battery life
a Channel select
SET. UP, DOWN key
0 AF controls
0 Audio input
0 Battery
0 Battery life Ni-MH rechargeable
a Battery life Alkaline disposable
0 Housing
Mute switch, Hi/Mid/Low switch
Mic in, Aux in
1.2 V (Ni-MH 1300 mAh) ' 2AA type rechargeable battery
1.5V ' 2AAAIkaline disposable
11 hours typical
14 hours typical
Aluminium
0 Dimensions ( L' W " H)
88'64'24mm
0 Weight with battery
1709
Handheld Microphone
0 Mike
Cordioid condenser capsule or dynamic capsule
0 RF output
10mW (according to regulation)
o Spurious emission
Less than 250 nW
0 Display status
LCD indicatordisplays channel orfrequency,
battery life
0 Channel select
SET, UP, DOWN key
0 AF controls
0 Battery
Hi/Low/Mute switch
12 V (Ni»MH 1300 mAh) ' 2AAiype rechargeable battery
1.5V ' ZAAAlkaIine disposable
0 Battery life Ni-MH rechargeable
11 hours typical
a Battery life Alkaline disposable
14 hours typical
o Antenna Built-in
0 Dimensions ( Dia * L) 46 ' 264 mm
0 Weight with battery 280 g
Audio Link Transmitter Module
0 RF output
10mW or 30mW (according to regulation)
o Spurious emission
Less than 250 nW
0 Display status
LCD indicator displays channel or frequency
o Channel select
0 Antenna
SET, UP, DOWN key
Built-in or external
0 Dimensions( L“ W * H)
88‘64‘24mm
0 Weight
1709
Receiver Module
o Antenna mode Diversity
a sensitivity 4flv @ 30 dB SINAD
5) Display status LCD indicator displays channel orfrequency
SET, UP, DOWN key
0 Double intermediate ‘11015 Mhzl10l7MHz
0 Channel select ‘
0 RF spurious rejection 70 dB
0 Adjacent channel performance 68 dB @ 250kHz
o IMD‘rejection 58 dB
0 Antenna Built-in orexlernal
o Dimensions(L*W' H) 128 ‘88’37 mm
0 Weight 110 g
Digital Echo Module
0 Input sensitivity 10 mV
0 Delay time 340 ms~110 ms
0 Audio input 6.3 (l) -Mic in‘2
o Controls Echo. Repeat, Delay, MICi, MICZ
Key Specifications I Overall System
o Oscillation type PLL synthesized control OSC
a Carrier frequency range Group 1. 740 ~ 752 MHz (96 ch.)
Group 2. 794 ~ 806 MHZ (96 ch.)
Group 3. 863 ~ 865 MHz (16 ch.)
0 Adjustable frequency Pre-programmed max. 96 switchable channels
0 Switching bandwidth Max. 12 MHz
0 Ambient temperature -10 “C - 50 ”C
0 Maximum deviation 50 kHz. with level limiting
0 Dynamic range 110 dB
0 T. H. D. Lessthan 0.5%
o Pre/De- emphasis ‘50/13
0 Squelch Tone key and noise IockduaI-squelch
0 Frequency response 70 Hz ~ 16 kHz (wireless)
0 Operating range 50 ~ 70 M (open field) with built-in antenna
Notice : The changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
IMPORTANT NOTE: To comply with the FCC RF exposure compliance requirements, no
change to the antenna or the device is permitted. Any change to the
antenna or the device could result in the device exceeding the RF
exposure requirements and void user’s authority to operate the device.
mics

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