Brugermanual til AM/FM-radiosignalgenerator og trådløs sender

1. Introduktion

This device is a versatile AM/FM radio signal generator and FM wireless transmitter, designed for electronics enthusiasts, radio repair, and communication equipment testing and calibration. It generates and emits electromagnetic waves at various frequencies, facilitating radio debugging and wireless audio transmission. The unit is constructed on a printed circuit board for reliable performance.

2. Specifikationer

3. Opsætning

3.1 Strømforsyning

The device requires an 18650 battery for operation. Insert the 18650 battery into the designated battery holder. Ensure correct polarity.

3.2 Antenneforbindelse

Extend the telescopic antenna for optimal signal generation and transmission. For specific modes, the antenna length may influence performance.

3.3 Eksterne forbindelser

The device features a 3.5mm socket for various external connections:

• External Audio Input: Connect an external audio source (e.g., mobile phone, MP3 player) to transmit audio wirelessly via the FM transmitter function.
• Ekstern mikrofonindgang: Connect a microphone to use the device as a wireless microphone.
• High/Low Frequency Output: This socket can also output high-frequency and low-frequency signals, functioning as a signal injector for debugging.

4. Betjeningsvejledning

4.1 Generelle kontroller

The device features several controls for different functions:

• Afbryderen: Tænder/slukker enheden.
• Frekvensopkald: Adjusts the output frequency for AM, FM, or Shortwave bands.
• Amplitude Modulation (调幅) Knob: Justerer amplitude modulation level.
• Frequency Modulation (调频) Knob: Adjusts the frequency modulation level.
• High Frequency Gain (高频增幅) Knob: Controls the gain of the high-frequency signal.
• Audio Frequency Gain (音频增幅) Knob: Controls the gain of the audio signal.

4.2 Signal Generator Mode (AM/FM/Shortwave)

1. Tænd for enheden ved hjælp af strømafbryderen.
2. Select the desired band (AM, FM, or Shortwave) using the appropriate switch or by rotating the main frequency dial.
3. Juster Frekvensopkald to the desired frequency within the specified range (e.g., AM 400kHz-1650kHz, FM 76MHz-108MHz, Shortwave 5MHz-18MHz).
4. Brug Amplitude Modulation (调幅) og Frequency Modulation (调频) knobs to fine-tune the signal characteristics as needed for debugging or testing.
5. De High Frequency Gain (高频增幅) knob can be used to adjust the output strength of the high-frequency signal.
6. The 3.5mm output socket can provide high-frequency or low-frequency signals for injection into circuits.

4.3 Audio Signal Generator Mode

1. Tænd for enheden.
2. Juster Audio Frequency Gain (音频增幅) knob to control the output level.
3. Rotate the dedicated audio frequency dial (if present on your model) to select a frequency between 380Hz and 1900Hz. This output is a sine wave.
4. The audio signal can be output via the designated audio output jack.

4.4 FM Wireless Transmitter Mode

1. Tænd for enheden.
2. Connect an external audio source (e.g., mobile phone, MP3 player) or an external microphone to the 3.5mm input/output jack.
3. Juster Frekvensopkald to the desired FM transmission frequency, typically within the 84MHz-108MHz range. This frequency is continuously adjustable.
4. Use a standard FM radio to tune into the selected frequency to receive the transmitted audio.
5. Juster Audio Frequency Gain (音频增幅) knob to control the volume of the transmitted audio.
6. The transmission distance can vary from 1 to 200 meters in open areas, depending on environmental factors and antenna conditions.

5. Vedligeholdelse

• Rensning: Brug en blød, tør klud til at rengøre enheden. Brug ikke flydende rengøringsmidler eller opløsningsmidler.
• Opbevaring: Opbevar enheden et køligt, tørt sted væk fra direkte sollys og ekstreme temperaturer.
• Batteri: Remove the 18650 battery if the device will not be used for an extended period to prevent leakage.
• Håndtering: Handle the device with care to avoid physical damage to the casing, knobs, or antenna.

6. Fejlfinding

6.1 Ingen strøm

• Ensure the 18650 battery is correctly inserted and fully charged.
• Kontroller, at tænd/sluk-knappen er i 'ON'-positionen.

6.2 No Signal Output

• Verify the correct frequency band and frequency are selected.
• Check all knob settings (e.g., gain, modulation) are appropriately adjusted.
• Sørg for, at antennen er strakt ud.
• If using external audio, confirm the cable connection and audio source are working.

6.3 Poor Transmission Quality (FM Transmitter)

• Adjust the transmission frequency slightly to avoid interference.
• Ensure the receiving FM radio is properly tuned and has good reception.
• Check the external audio source or microphone for proper function and connection.
• The transmission distance is a reference; environmental factors can affect it. Ensure you are in an open area for maximum range.

7. Brugertips

• This device is primarily intended for educational purposes, hobbyist use, and radio debugging.
• When using the FM wireless transmitter, be mindful of local regulations regarding radio frequency transmission. This machine is only suitable for ordinary home use and should not interfere with others in public places.
• Experiment with different antenna lengths and orientations to optimize signal strength and clarity for various bands.
• For precise calibration or testing, consider using external measurement equipment to verify the output frequencies and signal characteristics.

8. Garanti og support

This product is typically handmade and intended for electronics enthusiasts. Due to the nature of such specialized equipment, specific warranty details may vary. For any quality issues or technical support, please contact your seller directly. Please carefully consider the type of model before making a purchase, as after-sales service may be limited for non-refundable items.