SainSonic AX-7C User manual

Instruction Manual
SainSonic AX-7C FM Transmitter
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CATALOG
Caution ................................................................................. 2
Copyright ............................................................................. 2
FCC Information .................................................................. 2
Warranty ............................................................................... 2
Limitation of Liability .......................................................... 3
Introduction of SainSonic AX-058 FM Transmitter .......... 4
Package Contents ............................................................... 5
Specification ........................................................................ 6
Hardware Basics ................................................................. 7
Installation Instruction ........................................................ 8
Using the FM Transmitter ................................................... 9
Adjustment of Radio Frequency Channels ....................... 10
Power On/Off ........................................................................ 10
Important Notice .................................................................. 10
Troubleshooting .................................................................. 10
Setting and Adjustment ...................................................... 11
Step ....................................................................................... 12
Appendix
15
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CAUTION
Never operate the transmitter without connecting a suitable antenna
or a dummy 500hm load to the output. Otherwise there will be serious
damage
to thetransmitter.
Copyright
Copyright by SainSonic®, all rights reserved.
FCC Information
This device complies wtth Part 15 of the Federal Communications Commission
(FCC) Rules.
The FCC ID for this device is 2ABT5AX05B7C. Operation is
subject to the following two condttions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that
may cause undesired operation.
Changes
or modifications not expressly approved by the party responsible for
compliance could void the user's authorfy to operate the equipment.
Warranty
The warranty ofthis productwill be free from defects in materials and workmanship
for period
of time specified on the product packaging. This limtted warranty shall
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commence from the purchase date. The Warranty is not transferable and is
limited to the original purchaser.
If the product is found lo be defective, then as
your sole remedy and the manufacturer's only obligation, wewill repair orreplace
the product. This warranty shall not apply to products that have been subjected
to abuse, misuse, abnormal electrical or environmental conditions, normal wear
and tear or any condition other than what can be considered normal use.
Limitation of Liability
What is covered
All parts defective in material and workmanship. This limited warranty for
SainSonic® products covers the functionality of FM transmitter for their normal,
intended use as specified
in the Owner's Guide and does not cover a malfunction
that has resulted from improper or unreasonable use or maintenance, accident,
excess moisture, improper packing, lightning, power surges, or unauthorized
tampering, alteration
or modification while not underthe control ofSainSonic.
SainSonic®
FM transmitters are not designed to be used in every environment,
so please review your Owner's Guide. This Limited Warranty is also excluded
if
the label bearing the serial number has been removed or defaced.
OtherRights
IN NO EVENT WILL SAINSONIC BE LIABLE TO YOU FOR ANY LOST
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PROFITS, LOST SAVINGS OR INCIDENTAL, INDIRECT, SPECIAL OR
INABILITY TO USE THE PRODUCTOR THE BREACH OF THIS AGREEMENT,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.SOME
STATES
DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION
OR EXCLUSION MAY NOT ,J;,PPLY TO YOU.
What we will do
We will repair or replace any defective parts within a reasonable period of time
and free
of charge.
Introduction of SainSonic AX-058 FM Transmitter
Thank you for purchasing SainSonic AX-7C FM transmitter.This stereo FM
transmitter, covered with excellent aluminum alloy, can easily build a wonderful
FM radio station .
SainSonic present a brand new PLL FM Stereo Transmitter for FM stereo
broadcasting, built in LCD display with blue backlight, along with rnicrocontroller
forfrequency control and display
.. Highly stable and reliable.
SainSonic AX-7C is ideal for all stereo audio broadcasting, MP3, PC, TV,
wireless speakers, game device, etc.Its transmission distance is up to 1,300
feet
in barrier-free area.
SainSonic
AX-7C, designed to operate non-stop 24/7, will noi drift between
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stations because of the advanced siereo PLL Digital Tuner Technology.It uses
the control panel buttons to control the frequency to broadcast When powered
out and then restored,
it will begin broadcasting back on the exact same frequency.
II saves yourtime to reset the FM Transmitterfrequency.
Ifyou find a better antenna for this FM transmitter, the transmission effect will be
better. The higheryou place the antenna, the farther you will transmit. Transmission
range depends
on many factors, such asthe sensitivity of the receiver, the antenna,
and the building density, and other obstructions between
the transmitter and
receiver.
Package Contents
• 1 * SainSonic AX-7C FM Transmitter
• 1 * Power Supply
• 1* 3.5mm Audio Cable
• 1 * Retractable Antenna
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Specification
Power Output
Tuning
step
Power Supply
stability of Frequency
Frequency Response
Signa! to Noise Ratio
Frequency Deviation
Operation Time
-48d~m/7W
88.1-107.9 MHz/76-108MHz
1
OOKhz/0.1 Mhz
9 -12V DC (The current load of power supply over 1
A)
±10ppm (-10'C-+50'C)
20Hz-15KHz
50dB
±3K
True 24/7
3.5mm headphone connector
3.5mm headphone connector
Stable PLL Technology
---·----+-
160'95'54mm
Transmission Signal FM Stereo
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Hardware Basics 8
1. Audio volume
2. Mic volume
3. 3.5mm Jack for Audio cable input
4. 3.5mm Jack for electrets microphone
(And the computer use the same microphone) input
5. Power Button (On/Off)
6. '+' Frequency Up Button (To increase the radio frequency)
7. '-'Frequency Down Button (To decrease the radio frequency)
8. LCD Digital Display for the Radio Frequency
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9
9. Jack for DC 9-12V
10. Antenna socket
Installation Instruction
1. Install the the antenna to the antenna
socket
2. Connect the FM Transmitter to
AC
Adapter, then plug AC adapter to power
outlet
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3. Connect the iPod, MP3 orCD playerto
FM Transmitterwith the audio cable
Using the FM Transmitter
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1. Press Power Button toturn on the Digital Transmitter. The LCD Digital Display
shows the pre-set radio frequency channel (such as98.0MHz).
2. Tum on your radio and switch to FM channel, adjust the radio frequency channel
to the desired channel. And the radio will display the "zzz" sound
or radio music.
3. Then adjust the radio frequency channel
of the Digital Transmitter to the same
radio frequency channel
of the radio. (For example, ifthe radio frequency channel is
set to 98.0MHz then the FM Transmitter should also be set to 98.0MHz).
4. When the radio frequency channel of SainSonic AX-7C and your device are
the same, the "zzz" sound will stop. Adjust the volume to medium level
in iPod
or audio player, and start playing music.
5. When interference occurs, the music from radio will not be clear. In this case,
please switch to different channels
by repeating the Step 2 and 3 above until the
sound quality is clear.
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Adjustment of Radio Frequency Channels
1. Press Frequency Up/Down Button to increase/decrease 0.1 MHz radio
frequency channels
of the Transmitter.
2. Oryou can press and hold the Frequency Up/Down Button to continuously
increase/decrease radio frequency channels.
Power On/Off
Press Power Button turn on/offthe FM Transmitter.
Important Notice
• This product should be kept in dry condition and away from water.
• Keep the product off direct sunlight or high temperature environment.
• Please unplug the power plug when
it is not in use.
Troubleshooting
1. Does not function normally
•Please check whether all wires/ cables being connected properly.
• Ifthe product cannot be powered on, make sure the AC adapterworks and
connects properly.
2. The music output from the radio is distorted (not clear),
• First, reduce volume from iPod or audio player to medium or lower volume
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range, and then turn up volume from radio to the desired level. The sound
quality should
be improved.
• The pervious operation does not improve the sound quality,
it may be dueto
frequency interference. And you need to
switch. to other channel.
3. The volume output from the radio is too loud when the FM Transmitter IS not
being
in use,
•When FM Transmitter is in use, the desired volume output level from the radio
is typically higherthan without using FM Transmitter. To prevent the volume
output too loud when the
FM Transmitter is not being in use, you can turn down
the radio volume and turn up the iPod or audio player volume as long as the
sound from the radio remains clear.
4. There is some current acoustic interference from the music output ofthe radio,
·Try to change the location of the transmitter, or change the location of the
power supply, or change the location
of the audio line. Power supply must be
away from the transmitter
at work.
5. How to switch the output power?
Hold the power button for 3 seconds, you will see the L Mode (-48dj3m) orthe H
Mode (0.5w), and then choose the output mode you want.
Setting and Adjustment
Power and frequency
Two level power adjustment
of the 2014 V1 .2 version:
High power (H):> ?W; low-power
(L): <-48dj3m
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Step 1:
Press and hold the power switch <!> , and insert the power plug to the
powerjack e-+-©.
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Step 2:
Release the power switch (I) after 3 seconds, LCD screen shows the 'H' or 'L'.
Press '+/-' to swrtch 'H/L'.
Press
'+',the LCD screen displays 'H', Press '-' LCD screen displays 'L'.
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Step 3:
Press the power switch <!J to confirm settings, and the LCD screen displays
'10800MHz'.
This is the highest frequency available. The frequency range is 88.1-107.9
MHz/76-108MHz; you can change
it by+/-
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The same way to adjust low frequency as above.
Warning: The lowest frequency high-end can not be even higher than
the
highest frequency.
For example, to set the transmitting frequency range is 90MHz to 100MHz,you
can change
it to 100Mhz by+/- press the power switch 0 to confirm settings,
and then
press+/- to change to 90Mhz.
Step 4:
Press the power button 0 to confirm settings after 3 seconds, the LCD screen
displays 'OFF'. Again press the power switch 0 ,the transmitter start to work.
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Appendix
Transmitter covering Distance (Reference: kilometer)
Receive sensitivity Transmit i Transmit Transmit Trans;;;;! 1. T-;;;;smit~
power 1 power power power power
o.2uV/12dB ! 0.1--0.sw [ 1 ~2w 3~5w 10~3ow 3o~sow
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1
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Town 0.2--0.6 . 1 ~2 2~3 ~-~~10
Envi;;:--1 o _:=2__J _ _:::_~_ 3~5 s~1s :__ 1~~~0
_:::::_ .. ',';'_: :;,: j '.2;-f ~~I ::
*Only for reference, as the covering distance is effected by the antenna
and environment.
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