Sinclair duplexer. This guide is intended as an aid to those searching for a .

Sinclair duplexer One year Find great deals on eBay for Sinclair Duplexer. Product Specifications, Prices, and Pictures Disclaimer: Technical specifications, characteristics, functions, colors, prices and pictures are true as of last update of this website. 8 dB insertion loss • Rugged Res-Lok design reduces inter-cavity cabling • Six-cavity provides 85 dB isolation • Res-Lok design reduces inter-cavity cabling and losses • Provides up to 85 dB isolation at frequency separation of 500 KHz Sinclair Technologies | Q3220E 406-512 MHz Duplexer 5MHz Sep IL . SINCLAIR 406-512 MHz Duplexer. This duplexer allows bi-directional communication over a common antenna and is ideal for applications that call for a compact rugged unit, such as in vehicles, or where space is constrained. I have a R2600 Motorola Analyzer here at the shop and would like to know: 1) how to hook up the duplxer to my r2600 2) what screen do I use i. SINCLAIR's Q3220E 406 – 512 MHz duplexer. 5 dB insertion loss at 500 KHz separation Isolation of 80 dB at 3 MHz spacing typical Note: TESSCO or field tune. This design provides a quasi-bandpass response, resulting in suppression of spurious and sideband transmitter noise between, and adjacent to, the duplex frequencies. The final Sinclair developed the Q2330E design coupled with our Res-Lok™ modular construction resulting in an extremely versatile duplexers offering exceptional performance. Created Date1/14/2007 4:10:15 PM Complete Q202GR duplexer harness kit with loops and hardware optimized for the 144-148 MHz (2m) Amateur Radio band. 8 dB insertion loss. The Q2330E design provides a quasi-bandpass response, resulting in suppression of spurious and sideband transmitter noise between and adjacent to the duplex frequencies. The duplexer offers only 70db of isolation at 600kHz frequency split, which, in my opinion, is not sufficient for anything solid state over about 20 watts, especially if you use a preamplifier. N Female connectors. 85 dB isolation. Duplexer Tuning Services: We custom tune many different types of duplexers, both in our Canadian lab Sinclair developed Q-Circuit design coupled with our Res-LokTM modular construction to result in a series of extremely versatile duplexers offering exceptional performance. Report to Moderators I think this message isn't appropriate for our group. com. Carefully temperature-compensated resonators are designed to minimize variations due to changing operating environments. Learn about base station and mobile duplexers, case studies, white papers and product brochures. Find top brands, exclusive offers, and unbeatable prices on eBay. It is The Q201 series duplexers utilizes Sinclair’s Q-circuit design in a 6-cavity configuration to provide very high attenuation at extremely close frequency separation in the 132-148 MHz band and 148-174 MHz band. 6 MHz spacing. Coupled with carefully temperature compensated components A duplexer is a filter that allows a transmitter and receiver to operate on the same antenna. Manufacturers restrict us from advertising many products below either MSRP or MAP (Minimum Advertised Price) to the public • Four cavity duplexer with 70 dB of isolation • Only 1. After tuning them my receive is awful and my transmit is somewhat not what it used to be Sinclair Res-Lok duplexer with Q-circuit design provides a quasi-bandpass response to suppress sideband transmitter noise between and adjacent to the duplex frequencies. The Oct 31, 2025 · Sinclair UHF RES-LOK duplexer, model number:Q3220E. Sinclair developed the Q2330E design coupled with our Res-LokTM modular construction resulting in an extremely versatile duplexers offering exceptional performance. Mike the engineer also gives suggestions on preventing damage to the unit The Q-301G base station duplexer utilizes Sinclair’s Q-circuit design in a 6-cavity configuration to provide very high attenuation at extremely close frequency separation in the 406-512 MHz band. 350 W. That being said, Q2220E duplexers are working just fine on many ham repeaters. 1/4 wave bandpass filter Reduces interference, intermodulation, and desensitization Eliminates spurious radiation Copper/silver inner conductors, silver-plated to eliminate corrosion and improve performance. The Q-302G is available in either The Sinclair Q2220E is only a good repeater duplexer for a 144-148MHz amateur band when you are running low power. 9250 can someone step by step tell me how to tune this duplexer. 5 dB insertion loss at 500 KHz separation • Isolation of 80 dB at 3 MHz spacing typical • Compact design provides excellent performance while conserving rack space • Isolation of greater than 75 dB at 5 MHz separation and less than 0. Convert an old or out-of-band Q202GR duplexer into an optimized 2-meter pass-reject duplexer. Sinclair - 138-174 MHz Pass Reject Duplexer (Q2330E) SINCLAIR's Q2330E 138 – 174 MHz duplexer. Oct 2, 2024 · NOS Sinclair Q202GR 220 VHF 220-225 MHz 220 HAM Radio Repeater Base Station Duplexer, FREE TUNING. Buy Sinclair Mobile Duplexers - MR-256N Our Price USD $ 785. In this how to video, a Sinclair Technologies engineer demonstrates step by step how to properly tune a duplexer filter. Choose from a variety of great products, featuring the World-Class Sinclair product line. Sinclair MR3332S-3 Duplexer - UHF(450-470MHz), Spacing(5MHz), 6 Cavity - Fits HR652 It is strongly recommended to have Hytera install the duplexer and tuen the duplexer at the factory. Sinclair Q202GR 220 duplexer. The manufacturer specs should tell you how much loss you should see. However, its higher cost and complexity may be a drawback for some users. These duplexers provide superior performance for trunking and conventional applications, and may also be used MD356 series is Sinclair's new line of mobile duplexer that features six resonators for outstanding performance. Sinclair Technologies | Q2222E-1 144-165 MHz Q-Circuit Duplexer N-Female 3MHz Min Spac Rack M Item #SINQ2222E-1 Low Band, Aviation, and VHF Duplexers Suggested Retail: $3392. Sinclair's 138 - 174 MHz four (4) cavity duplexer. Range (MHz) 132-174 Application A duplexer is a filter that allows a transmitter and receiver to operate on the same antenna. 4 cavity. Our portfolio includes over 3,000 products—from advanced antennas and filters to a wide range of accessories—covering key frequency bands such as 800 MHz, UHF, VHF, TETRA, and 5G. TX460. io? This cannot be undone. Sinclair Technologies offers duplexers for bi-directional transmission, which allow a transmitter and receiver to share a single antenna. C Series Multicouplers FP, FR, FQ Series F-Series Hybrid Ring Duplexer Rx Multicouplers MR Mobile Duplexers P and Q Series PH Series Designed for operation in the 406-512 MHz band, this compact 4-cavity duplexer provides excellent performance while conserving valuable rack space. com recommends Creating an Account and Logging In while you shop. • Four cavity configuration provides very high attention at extremely close frequency separation• Quasi-bandpass response results in suppression of spurious and sideband transmitter noise• Easy rack mount configuration Sinclair developed the Q2330E design coupled with our Res-LokTM modular construction resulting in an extremely versatile duplexer offering exceptional performance. The first is a Sinclair Q2220E and the second is a Q202 Oct 19, 2024 · Look up the specs for the duplexer, it should show a maximum loss through it. Features Compact and rugged design, ideal for mobile applications Low insertion loss for Home / Mobile duplexer, 6 cavity, 380-480 MHz MD356 SERIES Mobile duplexer, 6 cavity, 380-480 MHz Add to Quote View Datasheet The Sinclair Q202GR-1 VHF 132-150 MHz Ham Repeater Duplexer Tuning is a high-quality, high-performance duplexer that is ideal for ham radio repeater operations. Jul 20, 2024 · I have two duplexers that are in mint condition (physically) but I do not know the past history. *TESSCO tuned or field tuned The Q-202G Base Station Duplexers offer high performance and compact design, ideal for various applications requiring efficient frequency separation. . The Q301GC-4 Sinclair Duplexer Base Station Circuit Cabinet Cavity 420-450 is a high-quality product that offers numerous benefits, including a wide frequency range, high power handling, durable construction, and easy installation. The Q-Circuit design provides a quasi-bandpass response, resulting in suppression of spurious and sideband transmitter noise between and adjacent to the duplex frequencies. 1. Shop now for fast shipping and easy returns! Nov 24, 2004 · Introduction The duplexer is a critical part of many repeater systems. The MR356N-2 is a compact mobile duplexer for use in the 440-480 MHz frequency band. The Group moderators are responsible for maintaining their community and can address these issues. Recommended for areas with a lot of interference. The Q2220E design provides a quasi-bandpass response, resulting in suppression of spurious and sideband transmitter noise between and adjacent to the duplex frequencies. Pass-reject type. 8dBMax ISOL 75dBMin 350W Item #SINQ3220E Duplexer, 4 cavity mobile, 4. This guide is intended as an aid to those searching for a Sinclair Q2220E – Professional VHF Duplexers for RF systems. N/female conn repairing and modifying a sinclair Q2220E Are you sure you wish to delete this message from the message archives of repeater-builder@groups. 9250 RX 465. Coupled with carefully temperature compensated components Nov 10, 2004 · I have a GR1225 UHF Repeater with a sinclair duplexer that needs retuning. It utilizes four carefully temperature compensated resonators housed in a rugged lightweight aluminum extrusion. Due to occasional changes in technology some of these mentioned may change. 00 Conclusion: The Q3220C-2 Sinclair Duplexer is a high-quality, feature-rich duplexer that offers a wide frequency range, adjustable bandwidth, and rack-mountability. 5 to 10 MHz separation, 126-174 MHz Below is a comprehensive list of downloadable instructional manuals to help tune and understand your products. Authentic OEM Sinclair product with full specs, compatibility details, and expert support from Radioparts. Q2330E - 132-174 MHz Duplexer Type Pass/Reject Duplexer Freq. 2 dB loss. Coupled with carefully temperature compensated components this • Four cavity duplexer with 70 dB of isolation and only 1. The typical Band Pass-Band Reject Duplexer, 406-512 MHz, 4 Cavities on 4" by side, 5 MHz Split, 350 Watt, N Fem. They honestly look like they have never been used but no guarantees. 0. Band Pass / Band Reject Duplexer / UHF, 406-512 MHz. A duplexer is a filter that allows a transmitter and receiver to operate on the same antenna. Model No. Date 1 - 10 of 10Sinclair duplexer SINCLAIR's Q3330E-3 450 – 470 MHz duplexer. 5 MHz minimum separation 1. Sinclair developed the Q2220E design coupled with our Res-Lok™ modular construction resulting in an extremely versatile duplexer offering exceptional performance. This design provides a quasi-bandpass response, resulting in suppression of spurious and side-band transmitter noise between and adjacent to the duplex frequencies. When searching the markets for a pre-owned unit, it is often difficult to determine the suitability of available units to a particular application. Yesterday I was trying to tune up the duplexers one can at a time as listed in this Sinclair Youtube Video. If you require a reliable, high-performance duplexer and have the budget, the Q3220C-2 could be a good choice. At 5 MHz separation, this unit provides isolation in excess of 75 dB with less than 0. Ideal for 220 HAM use. Features: 70 dB of isolation Only 1. Untuned at present, IL is 2. 5 MHz spacing. Sinclair Q2330E – Professional VHF Duplexers for RF systems. , sells Sinclair RF products, including duplexers, combiners, antennas and custom test equipment. WISCO International (Sinclair Technologies - Q3220E-Q3330E) Sinclair Mfg. Coupled with carefully temperature compensated components this Sinclair Technologies specializes in innovative wireless communication solutions trusted across the industry. e tracking generator or sweep gen or what 3)exactly how i tune the duplexer to frequcy. Convert an old Q202GR duplexer into a pass-reject duplexer or convert an existing commercial band Q202GR duplexer into a HAM optimized duplexer. You could could then connect the watt meter between the repeater transmitter port and the duplexer low pass port and compare the transmit output to the duplexer output. • Six highly stable temperature compensated helical resonators Enclosure is made of lightweight but rugged aluminum extrusion • 50 Watts power handling with 75 dB Tx to Rx isolation Minimum Tx-Rx spacing of 5 MHz, maximum of 10 MHz The Q2330 series uses Sinclair's Q-Circuit design coupled with our Res-LokTM modular construction to result in a series of extremely versatile duplexers offering exceptional performance. N/female conns • High attenuation at extremely close frequency spacings in 420-450 MHz band • Quasi bandpass response suppresses spurious and side-band transmitter noise • Available in either rack mount or cabinet enslosure Nov 7, 2025 · This index page covers the antenna system, which is made up of everything from the repeater transmitter or repeater receiver antenna jack out, including duplexers, circulators, isolators, feedlines, the antenna (s) themselves, etc. This Duplexer is designed to offer superior performance and reliability. 5 dB insertion loss • 350 W power rating • Variety of mounting options available Explore a wide range of our Sinclair Duplexers selection. You can also convert any combination of new or used Sinclair band-pass or band-reject cans into a high performance 4-cavity pass-reject EPCOM: Q2330-E-SINCLAIR - SINCLAIR Duplexer, Q-Circuit, Res-Lok, 6 Cavities, 138-174 MHz, 85 dB, Rack Mount, 350 Watt, N Female. Finding specifications, especially for models that are no longer in production, can be a very frustrating process. Pass- reject type. This is a 350 watt rated duplexer that can be tuned to frequencies between 406-512 MHz. 350W. I inherited them from an agency who did away with VHF high band. *TESSCO tuned or field tuned Q202G Four Cavity Q-Circuit Base Station DuplexerDuplexers - VHF Duplexers Sinclair developed the Q2220E design coupled with our Res-LokTM modular construction resulting in an extremely versatile duplexer offering exceptional performance. Nov 15, 2025 · JAG and Sinclair Q202GR duplexer harness optimized for the 144-148 MHz (2m) Amateur Radio band. *TESSCO tuned or field tuned • Six-cavity provides 85 dB isolation • Res-Lok design reduces inter-cavity cabling and losses • Provides up to 85 dB isolation at frequency separation of 500 KHz Sinclair TechnologiesDuplexer, base station, Q-Circuit, 4 cavity, cabinet mount, 132-174 MHz Sinclair MD356N-2-1 Duplexer - UHF (440-480MHz), Spacing (5MHz), N-Female Connectors, 6 CavityTwoWayRadio. 6 cavity. Shop with confidence. 4 dB loss. 2 dB and isolation is 95 dB at 1. This duplexer can be tuned to ham frequencies with a 600 khz spacing. You can also go to our Video Library page to see video tuning instructions. Sinclair’s MR356 series of mobile duplexers are compact units, fabricated from lightweight, rugged aluminum extrusion, which affords maximum structural integrity. 00 (CAD $ 885. SINCLAIR 450-470 MHz Duplexer. 8 dB loss. The Sinclair 132-174 MHz Pass Notch Duplexer is a product of Sinclair Technologies, a renowned name in the field of communication systems. This allows us the ability to present you with our best prices, along with tiered pricing discounts. 00) Timberline Radio Systems Ltd.