ASHATA RK560
ASHATA RK560 Portable Frequency Counter User Manual
Model: RK560
1. Introduction
This manual provides detailed instructions for the proper use and maintenance of your ASHATA RK560 Portable Frequency Counter. The RK560 is a compact, handheld device designed for measuring radio frequencies in the range of 50MHz to 2.4GHz, suitable for two-way radios and walkie-talkies. It features automatic decoding for DCS and CTCSS signals.
2. Product Features
- Frequency Measurement: Capable of measuring frequencies for two-way radios and walkie-talkies.
- DCS and CTCSS Testing: Ideal for testing Digital Coded Squelch (DCS) and Continuous Tone-Coded Squelch System (CTCSS) signals.
- Automatic Decoding: Features an automatic decoding function for sub-audio signals.
- Wide Measuring Range: Operates within a frequency range of 50MHz to 2.4GHz.
- Simple Operation: Designed for ease of use with a single-button mode for frequency selection.
- Integrated Antenna: Equipped with a built-in antenna for direct frequency measurement.
- Adjustable Frequency Step: Offers optional frequency steps of 1K or 0.1K.
- Battery Powered: Powered by a standard 9V battery (not included).
3. Setup
3.1 Battery Installation
The RK560 requires a 9V battery for operation. Ensure the device is powered off before installing or replacing the battery.
- Locate the battery compartment on the back of the device.
- Carefully open the battery compartment cover.
- Insert a new 9V battery, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Figure 3.1: The RK560 Portable Frequency Counter, illustrating its power source from a 9V battery. The device is shown with its antenna extended, ready for use.
3.2 Antenna Attachment
The device comes with an integrated telescopic antenna. Extend the antenna fully for optimal signal reception during measurements.
Figure 3.2: The RK560 Portable Frequency Counter with its antenna fully extended, indicating readiness for signal reception and measurement.
4. Operating Instructions
4.1 Powering On/Off
To power on the device, press the single button located on the side. The display will illuminate, showing "000.000". To power off, press and hold the same button until the display turns off.
Figure 4.1: A hand demonstrating the one-button operation of the RK560 Portable Frequency Counter, used for powering on/off and selecting frequency steps.
4.2 Measuring Frequency
Once powered on, the RK560 is ready to measure frequencies. Position the device near the radio source you wish to measure. The frequency will be displayed on the screen.
Figure 4.2: The RK560 Portable Frequency Counter showing a frequency reading on its digital display, indicating active measurement.
4.3 Selecting Frequency Step
To change the frequency step (1K or 0.1K), press and hold the operation button briefly while the device is on. The display will indicate the selected step. This allows for more precise measurements when needed.
Figure 4.3: The RK560 Portable Frequency Counter illustrating the option to select frequency steps of either 1K or 0.1K for varied measurement precision.
4.4 Two-Way Radio and Walkie-Talkie Testing
The RK560 is specifically designed for testing two-way radios and walkie-talkies. It can measure the frequency and decode DCS/CTCSS signals automatically. Simply activate the radio transmission near the frequency counter.
Figure 4.4: The RK560 Portable Frequency Counter actively measuring the frequency of a walkie-talkie, depicted with signal waves emanating from the device.
4.5 Product Overview Video
Video 4.5: An official product video demonstrating the ASHATA RK560 Portable Frequency Counter, including its physical features and basic operation.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using abrasive cleaners or solvents.
- Storage: Store the frequency counter in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery: Remove the 9V battery if the device will not be used for an extended period to prevent leakage.
- Antenna Care: Handle the telescopic antenna carefully to prevent bending or damage. Retract it when not in use.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Battery is dead or incorrectly installed. | Replace the 9V battery or check its polarity. |
| Inaccurate frequency readings. | Antenna not fully extended, device too far from source, or interference. | Ensure antenna is fully extended. Move closer to the signal source. Minimize nearby electronic interference. |
| Display is blank or dim. | Low battery power. | Replace the 9V battery. |
7. Specifications
- Measuring Range: 50MHz - 2.4GHz
- Display Type: Digital (numbers only)
- Accuracy Level: Frequency Counter
- Model: RK560 (ASHATAyfmdi08cvk)
- Power Source: 9V Battery (not included)
- Dimensions: Approximately 0.08 x 2.17 x 0.79 inches (0.2 x 5.5 x 2 cm)
- Item Weight: Approximately 2.99 ounces (84.76 grams)
- Operating Temperature: As described in product specifications
- DIY Supplies: Electrical
8. Warranty and Support
This product comes with a standard manufacturer's warranty. For specific warranty details, technical support, or service inquiries, please contact the manufacturer or your point of purchase. Please refer to the original product packaging or the seller's information for contact details.
For professional after-sales service, we guarantee a new product. If you have any questions, please feel free to contact us. We will do everything possible to solve the problem for you and provide you with satisfactory answers. (Support for return or exchange)
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