
( Brand: Celwave ), ( Manufacturer Part Number: RFE-4000A ), ( Type: Duplexer ), ( Country/region Of Manufacture: United States )
The RFE-4000A 6-Cavity UHF Duplexer Tuning Rejection Filter is a high-performance component designed specifically for the ham radio and GMRS 70cm (430-450MHz) bands. This duplexer is a crucial part of any communication system, responsible for separating the transmit and receive frequencies to prevent interference.
The RFE-4000A features six cavities, each one meticulously designed and manufactured to provide exceptional performance. Each cavity is tuned to a specific frequency, allowing the duplexer to pass the desired transmit and receive frequencies while rejecting unwanted signals. This results in a cleaner, more reliable signal, essential for clear communication.
The 6-Cavity UHF Duplexer is a duplexer, meaning it can handle both transmit and receive signals simultaneously. This is achieved through a process called frequency splitting, where the transmit and receive frequencies are separated by a specific amount. The RFE-4000A is capable of splitting frequencies up to 10MHz apart, making it a versatile choice for a wide range of applications.
The Tuning Rejection Filter aspect of this duplexer refers to its ability to reject unwanted signals with high efficiency. This is achieved through the careful design of the cavities and the tuning of their resonant frequencies. The result is a duplexer that can reject signals up to 50dB below the desired transmit or receive frequency, ensuring that your communication is not disrupted by stray signals.
The RFE-4000A is a GMRS (General Mobile Radio Service) and ham radio compatible duplexer, making it a versatile choice for both hobbyists and professionals. Whether you're a ham radio enthusiast or a GMRS user, this duplexer is a reliable and high-performance addition to your communication system.
In summary, the RFE-4000A 6-Cavity UHF Duplexer Tuning Rejection Filter is a high-performance component for ham radio and GMRS 70cm bands, designed to separate transmit and receive frequencies and reject unwanted signals, ensuring clear and reliable communication. Its six cavities, frequency splitting capability, and high rejection filter make it a versatile and reliable choice for a wide range of applications.
Pros of buying RFE-4000A 6-Cavity UHF Duplexer Tuning Rejection Filter:1. Improved Performance: The 6-cavity design provides better tuning and rejection capabilities, reducing interference and improving signal quality.
2. Wide Operating Frequency Range: This duplexer supports a wide frequency range of 420-470 MHz, making it suitable for various UHF applications, including Ham radio and GMRS.
3. Duplex Operation: Allows for simultaneous transmission and reception on different frequencies, which is essential for communication systems.
4. Durable Construction: The RFE-4000A is constructed with high-quality materials, ensuring long-term reliability and durability.
Cons of buying RFE-4000A 6-Cavity UHF Duplexer Tuning Rejection Filter:1. Cost: Due to its superior performance and high-quality construction, the RFE-4000A may be more expensive than other duplexers available in the market.
2. Requires Expertise: Proper installation and configuration of this duplexer may require some technical knowledge or professional assistance.
3. Limited Compatibility: The RFE-4000A may not be compatible with all UHF communication systems, so it's essential to ensure it fits your specific system requirements before purchasing.
In conclusion, the RFE-4000A 6-Cavity UHF Duplexer Tuning Rejection Filter offers excellent performance, wide operating frequency range, and durability. However, its high cost and potential compatibility issues should be considered. If you require a high-performance duplexer with advanced tuning and rejection capabilities, the RFE-4000A may be the right choice for you. However, if you are on a tight budget or do not require such advanced features, there may be more cost-effective options available in the market.
All connectors are in excellent condition. The duplexer leisurely allows 5mhz frequency shift between TX and Rx, even at transmitting power levels as high 60 watts . The entire sub-bands were easily covered with low insertion loss and high rejection a separation of 5 MHz, far exceeding specifications.
Custom tuning is included in this offer. 6-cavity Celwave RFE-4000A with excellent temperature and ageing stability. All connectors are type n. Condition the unit is in great shape with just a few scratches and scuffs here there.
The duplexer is compact enough to be fitted into repeater equipment such as vertex VCR-7000u see my other listing. I ll include a USPS option for areas where that is cheaper or if it can only be shipped to PO. The duplexer is specified for 450 to 470 MHz and was verified function perfectly all way down 442 without any loss of performance.
The duplexer was verified for tuning to FM repeater sub-bands in 70 cm band. In the unlikely case that damage occurs during transport we require buyer to document this properly by immediately taking detailed pictures of both item and shipping box keep for further inspection before a claim can be made.
The duplexer is a quality not Chinese. The 6 cavities of this compact duplexer guarantee rejection values more than sufficient for repeaters with 5 MHz separation commonly used in 70cm band. 6-cavity uhf duplexer includes tuning rejection filter ham 70cm gmrs up for sale is a type the 450 to 470 MHz band which and easily meets specifications in adjacent.