Feelworld fpv121dt User manual

32 Channel Auto Searching
Wireless FPV Monitor with Dual
Receiver LCD Monitor
User Manual

1
Product description：
Wireless FPV monitor with dual receiver LCD monitor is a new
multi-function product; adopts advanced integrated circuits and
high-quality new HD LCD monitor. It integrates a high-sensitivity
32channel and dual 5.8GHZ AV wireless receivers. It is with Aerial
receiver, high-definition monitor, easy to operate, which can be
used for FPV ground station, security monitoring, baby monitors,
photography viewfinder, construction site video surveillance,
advertising and other venues.
To insure best use of the unit, please read the user’s
manual carefully.
CAUTION
1. Do not use any damaged or leaking battery and please replace
the battery immediately if it’s working life becomes short
significantly.
2. Do not expose this product to direct sunlight, heat or humid
conditions.
3. Keep away from strong light while using this product so as to
obtain the clearest and the most colorful picture. Please use sun
shade for the outdoor necessary.
4. Please avoid heavy impact or drop on the ground.
5. Do not use chemical solutions to clean this unit. Please simply
wipe with a clean soft cloth to keep the brightness of the surface.
6. Without adjustable component in the unit, please do not take
apart or repair the unit by yourself, to avoid damage the product.

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Product Feature
●Dual antenna receiver, high-sensitivity, strong anti-interference
●5.8G wireless receiver, a monitor for the integration of
multi-functional combination machine, compact, suitable for a
variety of purposes
●-90dbm high-sensitivity,5.8G wireless receiver,32 Channel Auto
Scan, effectively avoid signal interference
●Channel auto scan and channel choice of menu buttons function,
improve the accuracy and convenience of channel choice
●Aerial video receives no blue screen
●High brightness, Contrast, Anti-glare screen with a sun shade,
Sun clearly visible
●With VIDEO、AUDIO、HDMI、DVI、VGA input, suitable for a
Variety of sources
●Color Control Systems support, enter the menu to manually
select the appropriate format, and adaptable
●Headphone monitors playback audio effects
CONTENTS
1. Product description ----------------------------- 3
2. Wireless transmits receiver operation ---- 5
3. Operation instructions ------------------------- 8
4. Parameters ---------------------------------------- 16
5. Trouble shooting -------------------------------- 17

3
1. Product description
1.1 Front view:
1. Power Indicator
2. ：ON/OFF Key
3. ：Multi button.
In VIDEO/HDMI/DVI/VGA input state, Volume up button.
In RF state，long press this button for about 3
seconds to enter the channel auto scan. Press this
button for Manual channel setting, to set channel
1~8CH
In OSD, to select or set adjustment items and the
increase adjustment of value button.

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4. ：Multi button
In VIDEO/HDMI/DVI/VGA input state，volume down
button.
In RF state, Press button to enter the manual
channel，to set BAND A/B/E/F transformation.
In OSD, to select or set adjustment items
and the decrease adjustment of value button.
5. ：Menu Button
6. ：Input signal selection or exit the menu.
1.2 Rear View:
1. :Power input jack, When clients use
their own power supply, please make sure that the
supply current shall not be less than 1.2 A and

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voltage range in 6 ~ 24 v qualified dc power
supply.
2. HDMI IN:HD HDMI signal input jack
3. DVI IN: Digital video signal input jack
4. VGA IN:VGA signal input jack
5. ：Stereo headphone output jack
6. Black DC jack, DC input
7.Red RCA jack：Analog audio signal input
8. Yellow RCA Jack: VIDEO signal input
2.Wireless transmits receiver operation
Take the form a complete set of the antenna assemble on the
unit’s antenna input ports, the assembly should be secured,
locked on the buckle.

6
2.1 Frequency band selection:
Wireless transmitter channel and receiver channel must be
strictly consistent; otherwise it will not receive a transmitter
signal.
This unit can auto searching for 32 receiver channels, also can
accept simultaneously multi transmitters and receivers together
work, to avoid co-channel interference
Note! Channels must be supporting the transmitter
2.2 Auto Searching:
Confirm that the transmitter has entered a normal working
condition.
Press “ ” to turn on the monitor, press “ ” to select
“RF” signal.
Long pressing “ ”，“Auto Searching” will display on the
top left corner of the screen,means the machine start to auto
scan. When the screen on the upper left corner shows
the“BAND:X CH:X”, image displaymeans finished searching.
Now it can receive the signal.

7
2.3 Manual channel scan and setting:
Confirm that the transmitter has entered a normal working
condition.
Press “ ” to turn on the monitor, press “ ” to select
“RF” signal.
Press “ ”button，“BAND:X CH:X” will display on the top
left corner of the screen; press“ ”button to switch
BAND A/B/E/F channels, and then press “ ” button to
select 1~8 channels. If the transmitter has worked, receiver
and transmitter frequency in agreement, the receiver will
receive the signal sent from the transmitter and displayed on
the monitor
Note: The effect of receiving the distance has a great
relationship with the reception power of the transmitter and
the receiver venues. If the reception is poor, the antenna can
be replaced with three leaves, four leaf antenna or panel
antenna. Replace the antenna should pay attention to the
antenna and receiving the same frequency.

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3. Operation instructions
3.1 Button instructions:
ON/OFFKey
Input signal switch button, in OSD for exit button.
Menu key, under a signal input mode, pressing this
button to pop up the menu, and the current menu
and sub-menu item to confirm the adjustment
Multi button, In different input state, it has
different functions:
In RF state
Auto Searching: Long press this button for
(≥3 seconds)to enter the channel scan.
Manual adjustment : directly press this button to set
1～8CH.
In VIDEO/HDMI/DVI/VGA state
No menu is displayed, press this button to increase
the volume.
In OSD
Enter the menu operation, press button to
confirm and enter sub-menu, then press this
button to select or set adjustment items.
Enter the adjustment items, it is used to set and
increase the adjustment of value button.
Multi button, In different input state, it has
different functions:

9
In RF State
Manual adjustment to set BAND:A/B/E/F.
Volume adjustment in RF state，need to press this
button to confirm. When screen appears the volume
adjustment, press this button to decrease the
volume, press button to increase the volume.
In VIDEO/HDMI/DVI/VGA state
No menu is displayed，directly press this button to
decrease the volume.
In OSD
Enter the menu operation, press button to
confirm and enter sub-menu, then press this
button to select or set adjustment items.
Enter the adjustment items, it is used to set
And decrease the adjustment of value button.

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3.2 OSD Operation Instruction
In PC（VGA）State
Color :
※Brightness: To adjust the Image brightness.
※Contrast: To adjust the brightest and darkest ratio of
the image, please note the sense of picture when
adjust, proportion too large or small, will make the
picture lose the color of showy
※Saturation: To adjust color saturation.
※Color Temp: OSD IN PC mode, the image’s Color
Temp could be chosen and adjusted. When select
“User”, It could be chosen R、G、B to adjust the
corresponding analog value, to meet the different user's
requirement on the color of the image.

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Adjust :
※Auto Config: To adjust automatically. If the auto-adjust
does not satisfy your request, you can adjust
manually.
※H Position: To adjust the picture in horizontal.
※V Position: To adjust the picture in vertical.
※Phase: To adjust the phase.
※Clock: To adjust the clock, make field and line
synchronization
OSD:
※ Language: To choose OSD language, check below:
English、简体中文、Français、Italiano、Deutsch
Español、日本語、조선의、Pycc、Portugues

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※ H Position: To adjust the OSD position in horizontal
※ V Position: To adjust the OSD position in vertical
※ OSD Timeout: To adjust the clock
※ Transparent: To adjust the level of transparent
Function:
※Reset: Back to original setting
※System: No use in PC state
Sound:
※Volume: To adjust the volume.

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In HDMI/DVI/VIDEO State
Color (In HDMI/DVI/VIDEO state, color menu is different）
In HDMI State
InDVIState
In VIDEO State
※Brightness: To adjust the image brightness.

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※Contrast: To adjust the brightest and darkest ratio of
the image, please note the sense of picture when adjust,
proportion too large or small, will make the picture lose
the color of showy.
※Saturation: To adjust color saturation.
※Hue: To adjust the hue in NTSC mode or in HDMI or
VIDEO Mode.
※Color Temp：OSD IN HDMI/DVI mode, the image’s color
Temp could be chosen and adjusted. When select “User”,
It could be chosen R、G、B to adjust the corresponding
analog value, to meet the different user's requirement on
the color of the image.
OSD :
※ Language: To choose OSD language, check below:
English、简体中文、Français、Italiano、Deutsch
Español、日本語、 조선의、Pycc、Portugues
※ H Position: To adjust the OSD position in horizontal.

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※ V Position: To adjust the OSD position in vertical.
※ OSD Timeout: To adjust the clock.
※Transparent: To adjust the level of transparent.
Function:
※ Reset: Back to original setting。
※System: In VIDEO State to choose the color video
Formats; In HDMI/DVI State, the function is useless.
Sound:
※Volume: To adjust the volume.

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4. Parameters:
Panel Size TFT LCD 12.1 inch
Panel Type TFT LCD
Resolution 800×600×RGB ＝1440000 Pixels
Backlight LED
Dot Pitch 0.307575(H) x 0.3075(V)
Display Ratio 4:3
Brightness 330cd/㎡
Contrast 900:1
Response Time 30ms
Viewing Angle 70°/70°(L/R) 50°/70°(U/D)
Signal Input Video/ Audio/ RF/ HDMI/DVI/VGA
Color System PAL NTSC SECAM
HDMI Support Format 480i /480p /576i /576p
720
p
/1080i /1080
p
(
50/60Hz
)
Headphone output stereo 3.5mm
Input Voltage DC：6 ～24V
Power Consum
p
tion ≦12W
RF receiving
frequency
5.8 G broadband FM audio and video synchronization
receiving (other frequencies optional)
32 channel auto searchin
g
(
Automatic channel search
)
RF wireless receiving Typical value -90dBm
Frequency stability ±100ppm
Unit Size 300(L)x245(H)x45.3(D)mm
Unit Wei
g
ht 1280
g
（not includin
g
the antenna）
Install Wa
y
VESA 100*100mm
Workin
g
Tem
p
erature －20～50℃
Storage Temperature －30～65℃

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5. Trouble shooting
5.1 Only black-and-white image：
①Make the level of color Saturation, Brightness and Contrast is
proper.
②Enter the menu item "Function", check whether the color system
is consistent with the input video color system, can choose other
system to check.
5.2 Power on but no picture
①Make sure the signal output connect to the signal input of
the monitor are in good condition, press “ ”button
to check. If in “RF” channel, Please check to see if the
transmitter has been working.
②Make sure you are using the standard power adapter to
connect the monitor.
5.3 Images are not synchronized.
①RF Signal is too weak.
②Enter the menu item "Function", check whether the color system
is consistent with the input video color system, can choose other
system to check.
5.4 No Sound
①Volume control did not open, press the volume button
"", try increasing the volume.
②Check if the audio input is normal or not. In RF receiving,
please check if the transmitting terminal has a Audio signal
emission.

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5.5 Open the RF, no signal detected
①Transmitter is working properly or not.
②If transmitter frequency matches with the receiver frequency
band
③If customer change the receiving antenna, please note that must
be matched with the transmitter, otherwise may cause receiving
sensitivity is low, even can't receive signals.
④Channel research or Manually set the channel.
■Remark:
★If there are still any problems, you can connect with the related
deals
★As we constantly strive to improve product features and product
performance, if there is any change to Operation Manuel, without
prior notice