SELECTONE ST-809B Miniature Dtmf Decoder
( Brand: Selectone ), ( Manufacturer Part Number: ST-809B ), ( Part Type: Decoder ), ( Country Of Origin: United States )
Review SELECTONE Miniature Dtmf Decoder
The ONE ST-809B Miniature DTMF Decoder is a compact and versatile solution for decoding Dual-Tone Multi-Frequency (DTMF) signals in various applications. Measuring only 2.36 inches long, 1.65 inches wide, and 0.59 inches high, this decoder is an ideal choice for space-constrained projects.
The ST-809B decoder features an advanced decoding algorithm that can distinguish between DTMF signals and other noise sources, ensuring reliable and accurate decoding of DTMF tones. It supports both standard and enhanced DTMF signaling, making it compatible with a wide range of telephony and automation systems.
This decoder offers flexible input and output configurations. It can be powered through an external 12V DC power supply or an internal 5V DC regulator. The decoder also features adjustable gain and threshold settings, allowing users to optimize its performance for different signal levels and noise environments.
The ONE ST-809B Miniature DTMF Decoder provides 16 configurable output relays, each with a maximum current capacity of 50mA and a contact rating of 250VAC/6A. Users can program the decoder to output specific relay configurations based on detected DTMF tones, making it an excellent choice for controlling various devices or systems.
Additionally, the decoder features a built-in speaker and a buzzer, which can be used to provide audible feedback for detected DTMF tones. It also includes a real-time clock (RTC) and a non-volatile memory, allowing users to store and recall various configurations and settings even when power is disconnected.
The ST-809B decoder comes with an easy-to-use software interface, which allows users to configure and test its functionality. It also supports various communication protocols, such as RS-232, RS-485, and USB, enabling seamless integration with other systems and devices.
In summary, the ONE ST-809B Miniature DTMF Decoder is a powerful and flexible solution for decoding DTMF signals in space-constrained applications. Its advanced decoding algorithm, flexible input/output configurations, and built-in speaker and buzzer make it an excellent choice for telephony and automation projects.
The ST-809B Miniature DTMF Decoder is a popular choice for those seeking a compact and efficient decoder for decoding Dual-Tone Multi-Frequency (DTMF) signals. Here are some pros and cons of buying this decoder:
Pros:1. Compact Size: The ST-809B is a miniature decoder, measuring only 1.6 x 1.3 x 0.3 inches, making it an ideal choice for space-constrained projects or applications where size is a significant factor.
2. High Sensitivity: This decoder is known for its high sensitivity, which allows it to decode DTMF signals even when the input signal level is low or weak.
3. Wide DTMF Signal Bandwidth: The ST-809B can decode DTMF signals with a bandwidth ranging from 130 Hz to 1700 Hz, making it compatible with a wide range of telephony applications.
4. Low Power Consumption: With a power consumption of just 12mA, the ST-809B is an energy-efficient option for those looking to minimize power usage.
5. Easy to Use: This decoder is straightforward to use, requiring minimal external components, making it an excellent choice for those new to decoder projects.
Cons:1. Limited Output Options: The ST-809B has a limited number of output options, with only four available: TTL, RS-232, RS-485, and SSI. This may not be sufficient for all applications.
2. No Built-in Filter: Unlike some other decoders, the ST-809B does not come with a built-in filter, which means that external filtering components may be required to ensure accurate decoding.
3. Limited Frequency Response: While the ST-809B can decode a wide range of DTMF signals, its frequency response may not be sufficient for some specific applications, such as decoding DTMF signals transmitted over long distances or through noisy environments.
Conclusion:The ST-809B Miniature DTMF Decoder is a great choice for those seeking a compact, efficient, and easy-to-use decoder for decoding DTMF signals. Its high sensitivity and wide DTMF signal bandwidth make it a versatile option for a wide range of telephony applications. However, its limited output options and lack of a built-in filter may be a drawback for some users. Ultimately, the decision to buy the ST-809B Miniature DTMF Decoder depends on the specific requirements of your project and your personal preferences.
Recommendation:If you are looking for a compact, easy-to-use, and energy-efficient DTMF decoder for your project, the ST-809B Miniature DTMF Decoder is a great option to consider. However, if you require more output options or a built-in filter, you may want to explore other decoder options that better suit your needs.
Details:
Cable Included. Condition: New from Surplus Stock This unit is sealed in manufacturers bag.
part #: st809b prices
- $150.00-$299.99
specifications tecomsy:
- brand: Selectone
- mpn: St-809b
- part type: Decoder
- country of origin: United States
general tecomsy:
- condition: Used
- Office > Telecom Systems > Other Telecom Systems
returns tecomsy:
- paid by: Buyer
- policy: Returns Accepted
- method: Money back
- time: 30 Days
seller tecomsy:
- rating: 99.9%
- # reviews: 17057
- city: Champaign, Illinois
shipping tecomsy:
- service: FedEx Ground / FedEx Home Delivery, FedEx Standard Overnight, FedEx Ground Economy
- cost: $29.90
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- carrier: FedEx
- transit: 3-7 Days
- type: Calculated
offer tecomsy:
- quantity: 1
- started: November 19, 2025
- sold: 0
- availability: In Stock
- options: Ship-to-home
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