1. Introduktion
This manual provides detailed instructions for the safe and effective use of your SMA Adjustable RF Signal Attenuator. This device is designed to precisely adjust RF signal levels in 1dB steps, making it suitable for various testing and system integration applications. It features a compact size, high precision, and reliable stability.
2. Opsætning
2.1 Udpakning
Carefully remove the attenuator from its packaging. Inspect the device for any signs of damage during transit. If any damage is found, please contact your supplier immediately.
2.2 Forbindelser
The attenuator features SMA dual female connectors (standard thread with thickened plating for durability and oxidation resistance). Identify the 'IN' (Input) and 'OUT' (Output) ports on the device. Connect your RF signal source to the 'IN' port and your receiving device or test equipment to the 'OUT' port using appropriate SMA cables.
3. Betjeningsvejledning
3.1 Attenuation Adjustment
The attenuator uses key-press switches to adjust the signal attenuation in 1dB steps. Each key corresponds to a specific attenuation value (e.g., 1dB, 2dB, 4dB, 8dB, 16dB, 20dB). To achieve the desired total attenuation, press the combination of keys that sum up to your target value. For example, to achieve 5dB attenuation, press the 1dB and 4dB keys simultaneously.
The total attenuation range varies by model, typically from 0-30dB, 0-60dB, or 0-90dB, with a frequency range up to 3GHz, 4GHz, or 5GHz depending on the specific variant.
3.2 Strømhåndtering
Ensure that the input power to the attenuator does not exceed its rated power (e.g., 2W, 5W, or 10W, depending on the model). Exceeding the maximum power rating can damage the device.
4. Vedligeholdelse
4.1 Rengøring
Keep the attenuator clean and free from dust and debris. Use a soft, dry cloth to wipe the exterior. Avoid using harsh chemicals or abrasive materials that could damage the environmental spray paint finish.
4.2 Opbevaring
When not in use, store the attenuator in a dry, cool environment, away from direct sunlight and extreme temperatures. Protect the connectors from physical damage.
4.3 Switch Durability
The imported key-press switches are designed for high durability, verified through 5000 life tests. However, avoid excessive force when operating the keys to ensure their longevity.
5. Fejlfinding
If you experience issues with your attenuator, consider the following:
- Intet signal eller svagt signal: Check all cable connections to ensure they are secure. Verify that the input signal source is functioning correctly and that the receiving device is properly configured.
- Incorrect Attenuation: Ensure the correct combination of keys is pressed for the desired attenuation value.
- Intermitterende signal: Tjek for løse forbindelser eller beskadigede kabler.
If problems persist, consult the specifications section to ensure the device is being used within its operational limits. For further assistance, please contact your supplier.
6. Specifikationer
The following table outlines the typical technical parameters for the SMA Adjustable RF Signal Attenuator. Specific values may vary slightly depending on the exact model variant (e.g., 2W, 5W, 10W power ratings, or different frequency ranges).
| Parameter | Værdi |
|---|---|
| Modelnummer | KT2.5-90/1S-2S (Exampdet) |
| Produktnavn | RF adjustable attenuator |
| Frekvensområde (GHz) | DC-3G (up to 4G/5G for some variants) |
| Nominel effekt (W) | 2W (5W/10W variants available) |
| VSWR | ≤1.35 |
| Indsættelsestab (dB) | ≤3.0 |
| Attenuation Adjustment Range (dB) | 1dB step |
| Attenuation Steps (dB) | 1, 2, 4, 8, 16, 20, 20, 20 (varies by model) |
| Single Key Attenuation Accuracy (dB) | ±0.9 Max |
| Connector Type | SMA-K-K (SMA Dual Female) |
| Driftstemperatur (°C) | -10°C ~ +50°C |
| Non-operating Temperature (°C) | -40°C ~ +70°C |
| Dimensioner (mm) | 149 × 20 × 29.7 |
| Vægt (g) | 175 g |
6.1 Præstationsindikatorer
The attenuator exhibits low VSWR, low insertion loss, and high precision, as demonstrated by actual indicator tests. These characteristics ensure reliable data and stable performance in various RF applications.
7. Garanti og support
For any questions regarding the product, technical support, or warranty claims, please contact the seller or manufacturer directly. Keep your purchase records for reference.
8. Brugertips
Selvom der ikke er nogen specifik brugeranmodningviews or Q&A were provided for this manual, general tips for using RF attenuators include:
- Always use high-quality RF cables and connectors to minimize signal loss and reflections.
- Ensure proper impedance matching (typically 50 Ohm for RF applications) throughout your signal chain.
- Avoid bending RF cables sharply, as this can degrade performance.
- When combining attenuation values, ensure the total attenuation does not exceed the maximum range of the device.
- Consider the power rating of the attenuator for your specific application to prevent damage.
