Fine Wave GFT-42E User manual

User’s Manual
GFT-42E
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.
NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV
INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT
SUCH MODIFICATIONS COULD VOID THE USER'S AUTHORITY TO OPERATE THE
EQUIPMENT.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
1

1. Summary
This unit is a portable FM transmitter and is designed to minimize volume and weight by using the recent
miniature parts. This unit is a multi-use device and is manufactured so that the consumer can use it for
various purposes at desired position. Major function of this unit as music or sound transmitter using FM
ranges includes using 6 frequencies.
In addition, for use in a car, a support console for vehicle, of which mounting or removal is available for
convenient use is also provided together with the unit.
2. Specification
Main body of FM transmitter
①Current consumption
- In use of AAA cell: MAX. 130mA
②Rated power cell available : 1.2V~1.5V
③Size: 64.0mm ×23.0mm ×24.0mm (except for support console for vehicle)
④Weight: 23g (except for battery)
⑤Environment for use
- Keeping temperature: -30℃~ 80℃
- Operation temperature: -1 0℃~ 50℃
⑥Usage: Inside or outside of structures on the ground, or within vehicle
⑦Method: Oscillation method using circuit, FM modulation method, analog transmission method
⑧Time of using cell
- In case of using general Alkaline cell: Maximum consecutive 10 hours
- In case of using NiMH charger: Maximum consecutive 8 hours
⑨Public line used
- Type: Loop type of antenna adhered to inside PCB
- Gain : 0 dB
- Size : 1.7 X 3.7mm, copper material with 1.0mm interval
- Output impedance: 75 Ω

⑩Frequency used: 106.7, 106.9, 107.1, 107.5, 107.7, 107.9 (㎒)
Support console for vehicle
①Size: 34.0mm ×27mm ×14.0mm
②Weight: 10g
③Fixing method
- Fixing of both vehicle and support console: Both sided tape
- Fixing of both support console and transmitter: Magnet on support console and magnetic power of
main body (battery + metal plate)
3. Composition
① Basic components
- Main body of FM wireless transmitter
- Support console for vehicle
- 1 AAA cell
- Connection cords for hand-free (option)
② Appearance
<Upper side > <Lower side>
<Rightside> <Front> <Leftside> <Rearside>
4. User’s Manual

Attached User’s Manual provided for sale.
User’s Manual
You can hear MP3 player or CD player by using
a speaker via a FM radio in a vehicle or home.
Thank you for purchasing a portable FM wireless
transmitter made by our Seobong Electronics Co., Ltd.
After purchasing product, be sure to read this User’s
Manual before using it.
Seobong Electronics Co., Ltd.

Before using product ……
Where questions or failure occurs during use of product,
Please call our A/S center (Main Office at Pusan) (Tel: [phone]).
Caution.
- Contents of this manual may change without prior notice.
- Operation of this unit is -10°C ~ 50°C and don’t leave it where temperature is too low or high for a
long time. (Especially, be careful so that the unit may not be disclosed direct sunlight within a car
in summer.)
- Don’t this unit fall in water or keep it a wet place.
- Be careful since it may result in malfunction or failure if this unit is subject to static electricity or
electrical shock.
- Don’t permit the user to repair, disassemble or modify the unit at random.
- If applying unreasonable shock or forcedly pulling line-in (Audio input) cables, the unit may be
damaged.
Table of Contents
Before using product…………………………………………………………..2
Caution for safety……………………………………………………………….4
Caution in use……………………………………………………………………6
Name of every part and subsidiary parts ………………………………….7
About method to use cell………………………………………………………8
About basic method to use this unit………………………………………. 9
Checkpoints before requesting service……………………………………13
Warranty Card (Warranty Regulations) …………………………………..15
Warranty Card………………………………………………………………….16

Cautions for Safety
- Cautions for safety are classified into ‘Warning’ and ‘Caution’ and they has meaning as below:
(/////) Warning
Non-observance of instructions may cause death or serious injury.
(/////) Caution
Non-observance of instructions may cause insignificant injury or loss of property.
- After reading User’s Manual, keep it where the user of product can easily find.
- Keep the cell at a place that the hands of a baby or child may not touch with since the cell is
dangerous. If they swallowed it, immediately consult a doctor. Don’t short, disassemble or heat the
cell or put it in flame. Otherwise, it may result in liquid leakage, heat generation, rupture or fire,
etc. If leakage liquid of the cell entered into the eyes, wipe it off with water and then immediately
consult a doctor. If leaving as it is, it may result in loss of visible function.
In case of using the rechargeable cell, read manual for cell or charger and properly use the product.
- If not using the unit for a long time, separate the cell. If leaving the unit for a long time without
using the unit depending on type of the cell, corrosive solution may flow out and damage to the
skin.
- Don’t touch with the connection part of the unit with the wet hands. It is dangerous of electrical
accident.
- Don’t use the unit within an airplane or at a place where use of electrical appliance (near hospital,
R&D room, medical device, etc). Otherwise, it may result in accident due to wave interference.
- Be sure to read User’s Manual to the end before using the unit.

Cautioninuse
/// Caution
- Don’t disclose the unit to direct sunlight.
Don’t lay the unit near heater or hot place.
- To remove dusts, don’t use a smooth cloth without using liquid solvent (thinner, benzene, etc) or
wet rag, etc.
- Don’t apply shock or fall the unit down. Otherwise, it may cause malfunction or failure.
- Don’t forcedly switches unnecessarily. Otherwise, switch may be damaged.
Name of every part and subsidiary parts
[Name of every part]
Wireless transmit part and power on display lamp
Cell insertion part (AAA type of cell)
FM frequency adjusting switch
High = 107.5, 107.7, 107.9 (MHz)
Low = 106.7, 106.9, 107.1 (MHz)
High frequency and low frequency selection conversion
switch(High/Low)
Outside voice receive cable (Line In, Diameter = 3.5mm)
Power On/Off switch (On/Off)
[Subsidiary Parts]
Cell, support console for vehicle, both-side tape, User’s Manual.

About method to use cell
1. Pull and open the cell cover to the arrow direction.
2. Insert the cell after checking (+), (-) polarity and close the cover. Use ‘AAA’-type of the cell
standard.
- Refer to follows!!!
If using the cell for a long time with it mounted on the unit, the cell may be naturally discharged.
3. Usable time of the cell is as below.
Alkaline cell Manganese (NiMH) cell
Maximum consecutive 10 hours Maximum consecutive 8 hours

About basic method to use this unit
- Use instructions will be basically provided on a portable MP3 player.
- Products used with this unit are designed so that they can be connected with any device with
earphone or headphone jack mounted such as portable CD player, cassette player.
[To mount support console for vehicle]
Firstly, mount support console for vehicle near the radio tuner of a car.
1. Adhere both-sided tape at the rear side of the support console for vehicle and then mount
support console for vehicle near the FM radio tuner of a car.
- Mounting the support console for vehicle near the radio tuner is to minimize noise and thus it must
be mounted directly near the radio tuner as possible as.
[To use the support console for vehicle mounted with the main body]
1. Mount the main body on the support console for vehicle and then insert the jack of the
outside voice receipt cable (LINE IN) into the earphone jack of the MP3 player.
- Select the MP3 player at most appropriate location where noise may not occur.
- Powerful magnet is built-in within the support console for vehicle and is designed so that it is
adhered to metal mounted inside of the cell cover of the main body.
2. Turn power of the unit on.
- Set the power On/Off switch (On/Off) to On position. If the wireless transmit part and the power on
display lamp are turned on in red color, it means power is turned on.

3. Adjust the high frequency and low frequency conversion switch of this unit to High or Low.
- This is to select frequency that music is mostly received, of FM radio frequency of a car and
frequency of this unit.
High = 107.5, 107.7, 107.9 (MHz)
Low = 106.7, 106.9, 107.1 (MHz)
4. Set the FM frequency adjustment switch of the unit to one of 6 frequencies.
- If selecting HIGH in the third step, you can select one of 107.5,107.7, 107.9 (MHz) and if selecting
LOW in the third step, you can select one of Low = 106.7, 106.9, 107.1 (MHz)
5. Turn power of the FM radio tuner in a car and then set frequency to one of frequencies
selected in the fourth step.
- If using automatic search function of the FM radio, you can stop at frequency set in the above 3-4
step.
6. If replaying music by turning power of the MP3 player on, sound comes out via speakers in
a car.
- If music is heard, appropriately adjust sound volume of the FM radio and the MP3 player. If output
is too strong, phenomena that sound is distorted occurs. If it is too weak, noise sound is heard. For
the MP3 player, sound volume of 3/4 or so (7~8 mW) is appropriate. You can hear after adjusting
sound volume of the FM radio tuner as the receipt part.
- Since this unit transmits music wirelessly, noise may occur depending on direction of the antenna.
Noise may also occur where there are devices to generate other noise.
- You can let music of the MP3 player via a speaker as above through FM frequency of audio or
cassette radio. In this case, you can use the unit near audio where receipt is well done.

Checkpoints before requesting service
- Check following matters before requesting service and where same symptom continuously occurs
in spite of it, call our service center.
1. Phenomena that the power on display lamp turns on weakly or sound is frequently
interrupted occur.
- Try to replace the cell.
2. The power on display lamp does not turn on.
- Check the connection part of the power terminal is properly connected.
- Check (+), (-) polarity of the cell is proper.
3. Sound does not come out clean.
- Try to adjust volume of each device.
- Try to move this unit to appropriate position.
- Try to change frequency of the unit and frequency of the radio.
- Noise may occur where there is broadcasting with strong output like public radio broadcasting near
frequency that this unit uses. In this case, try to change frequency of the unit and frequency of the
radio, of 6FM frequencies.
Standards of Product
- Operation voltage:
 1.2V ~ 1.5V (AAA type of cell, alkaline cell or charger available)
- Current consumption:
 In case of using cell – Max. 130 mA
- Available frequency: 106.7, 106.9, 107.1, 107.5, 107.7, 107.9 (㎒)
- Max. output: 500 mW/m (away 3m)
- Operation temperature: -10OC ~ +50 OC
- Max. Operation time : In case of using AAA-type of alkaline cell
Maximumconsecutive10times
- Appearance size (main body): 64.0 x 23.0 x 24.0 mm
- Weight (main body): About 23g.

Warranty Card (Warranty Regulations)
Purpose of this warranty represents our corporation’s promise to provide free of charge repair as
described below. If failure occurs during the warranty period, refer to our service center or your
purchasing agency accompanying with product and this warranty. If the purchase YY/MM/DD and trade
name of sale agency are omitted, you cannot be entitled with warranty. Be sure to check the warranty and
if it is not provided, please apply the sale agency. Keep this warranty carefully since it can not be reissued.
<Free of charge repair regulation>
1. This product was made through strict quality control and inspection process.
2. If failure occurs during the warranty period in normal use of product following cautions of User’s
Manual, Caution Label on the main body, etc, the purchasing sale agency or our service center
will provide free of charge repair.
3. Repair on charge will be provided in following cases even during the warranty period.
(1) Where the warranty will not suggested.
(2) Where the purchase YY/MM/DD, customer name and trade name of the sale agency are
omitted, or where descriptions are modified at random.
(3) Where failure or damage occurs due to carelessness by the user after purchasing product.
(4) Where failure or damage occurs due to random repair or modification by the user.
(5) Where failure or damage occurs due to outside factors such as fire, public pollution,
earthquake, wind/flood disaster and other Act of God.
(6) Where failure or damage occurs due to liquid leakage of the cell.
(7) Where sundry articles (cell) are exhausted and thus replacement is required.

<Instructions in post mail>
Please be cautious of following matters in post mail.
1. Please send this warranty card together with product during the warranty period.
2. Wrap product with dumping materials and put it in a box to prevent damage during transportation.
Post charges, packing expenses, etc for transportation must be borne by the customer.
3. Please utilize a registered airmail to prevent missing, etc.
Warranty Card
Product Name: FM transmitter
Model Name: SBT-400
Warranty period: 1 year
Purchase date: ___ Year ___ Month ___ Day
Name
Address
Purchaser
Telephone
Name
Address
Seller
Telephone
 Where failure will occur during use of this product, consult the sale agency and
neighboring A/S center.
 All compensation regulations such as replacement, repair (based on charge or free of
charge), refund and parts holding period shall comply with compensation regulations in
accordance with the Consumer Product Act.
 For any questions or further information about this product, call the A/S center of the main
office.
Seobong Electronics Co., Ltd.
 A/S contact.
This warranty card must be carefully kept since it is necessarily required for receiving warrant repair.