Connecting Multiple Receivers to One Antenna

Multiple DR500 Receivers can be connected to one antenna. However, to avoid damage to either the antenna LNB and DR500 Receiver, the following items must be used:

•Correct splitter(s)

•Proper line amplifiers

Line amplifiers may be required when using a signal splitter and/or when long coaxial cable runs are required from antenna to receiver. All splitters and line amplifiers should be rated for satellite IF processing with a minimum bandwidth of 950 MHz to 1450 MHz.

Since power is delivered to the LNB and line amplifier by the DR500 Receiver (18 VDC via RF IN connector), splitters should have one DC power passing port. All other ports must block DC or have equivalent circuitry that only permits one of the DR500 Receivers to power the LNB. Never connect via power passing splitters. Additionally, the receivers not delivering power to the LNB should have their LNB power output switched OFF using Preset 160. Failure to do so may result in severe damage to the antenna LNB and the DR500 Receivers

The line amplifier should be inserted just prior to the input of the splitter (not after the antenna LNB). For best performance line amplifiers are typically inserted every 150 feet.

Recommended Equipment

The following equipment is recommended when multiple receivers are connected to one antenna:

•High frequency splitters

−QINTAR HFS-2 and HFS-4. Two and four port splitters that pass power from one port.

−QINTAR HFS-2WB and HFS-4WB. Two and four port 5 to 2050 MHz wide band splitters with a built in zener diode circuit to protect DC return back to the DR500 Receiver. These splitters can be used in installations requiring power passing to only one port.

•In-line satellite amplifier

−QINTAR LA-2050. This line amplifier has a bandwidth of 10 to 2050 MHz. It is typically powered by the DR500 Receiver 18 VDC power.

•Coaxial Cable

−For short runs, under 150 feet, use a 75 ohm RG-59 coaxial cable.

−For cable runs over 150 feet, use higher quality RG-6 or RG-11 cable to minimize antenna signal loss and amplifier requirements.

DR500 (E-28)

Rev. C 10/94

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Philips DR500 manual Connecting Multiple Receivers to One Antenna, Recommended Equipment
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DR500 specifications

The Philips DR500 is a cutting-edge digital radiography system designed to enhance imaging performance while ensuring a streamlined workflow and patient comfort. With a robust set of features, the DR500 combines advanced technologies to meet the needs of modern medical facilities.

One of the primary features of the Philips DR500 is its innovative detector technology. It is equipped with a high-resolution flat-panel detector that delivers exceptional image quality with minimal radiation exposure. This is crucial for patient safety while allowing healthcare professionals to achieve accurate diagnoses. The detector's fast image acquisition speeds mean that examinations can be completed more swiftly, enhancing overall operational efficiency.

The DR500 also boasts a user-friendly interface that simplifies the imaging process for radiologists and technicians alike. The touchscreen interface is intuitive, allowing for quick adjustments and settings configuration. This ease of use is complemented by automated features that reduce the likelihood of human error and improve consistency in results.

Another significant characteristic of the Philips DR500 is its versatile imaging capabilities. The system supports various radiographic applications, from general radiography to specialized procedures. This versatility makes it a valuable addition to hospitals and clinics that require a wide range of imaging modalities. It proficiently handles different patient demographics, including pediatrics and geriatrics, adapting to their unique needs.

Connectivity is a hallmark of modern imaging systems, and the DR500 excels in this area. With advanced networking capabilities, it seamlessly integrates with existing Picture Archiving and Communication Systems (PACS) and electronic health records (EHRs). This ensures that images can be stored, retrieved, and shared effortlessly among healthcare providers, improving collaboration and enabling quicker clinical decision-making.

Moreover, the Philips DR500 prioritizes patient comfort. Its ergonomic design allows for easy access and positioning, making the imaging process less stressful for patients. Enhanced features such as auto-positioning and customizable protocols contribute to a smoother experience, fostering a patient-centric approach in diagnostic imaging.

In summary, the Philips DR500 represents a significant advancement in digital radiography. Its combination of high-quality imaging, user-friendly operation, and integrated connectivity positions it as a preferred choice for healthcare facilities aiming to improve diagnostic accuracy and patient care. With its adaptable design and advanced technologies, the DR500 stands out as a powerful tool for today's medical imaging needs.
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