40 Band Pass Filters HF Transmit Band Pass Filters and Multiplexers Give your station the same high-quality band pass filters, diplexers, and triplexers used by top multi-multi contest stations and successful Field Day operations. Highly respected HF transmit band pass filters by Pavel, VA6AM, provide a dramatically lowered noise floor for enhanced single-band, weak-signal reception. The compact units (3" H x 6" W x 3" D) deliver the isolation needed to eliminate image and harmonic RF interference issues for dedicated monoband operations in multi-radio environments. The 150W PEP filters (Third Order Cauer for 80/40/20/15; Third Order Chebyshev for 160/10M) allow multiple transceivers to be operated on dif erent bands simultaneously on the same antenna (with a required multiplexer below). Built into durable aluminum enclosures and supplied with SO-239 connectors, these filters boast 60 dB of out-of-band suppression, typical insertion loss of less than 0.25 dB, and return loss of less than 26 dB, equivalent to SWR under 1.1:1. Enter "VA6AM" at DXEngineering.com for more details. VAM-LP-BPF-160 160M Band Pass Filter, 150W PEP .....................................$235.99 VAM-LP-BPF-80 80M Band Pass Filter, 150W PEP .......................................$235.99 VAM-LP-BPF-40 40M Band Pass Filter, 150W PEP .......................................$235.99 VAM-LP-BPF-20 20M Band Pass Filter, 150W PEP .......................................$235.99 VAM-LP-BPF-15 15M Band Pass Filter, 150W PEP .......................................$235.99 VAM-LP-BPF-10 10M Band Pass Filter, 150W PEP .......................................$235.99 Diplexers and Triplexers When used along with a monoband HF band pass filter, these receive and transmit capable RF-filtering splitters/combiners allow multi-transceiver stations to share a single multiband antenna. VA6AM multiplexers deliver excellent levels of isolation between band ports and cause negligible insertion loss, while providing 50 Ω connections for multiple transceivers that serve to balance the impedances for a single 50 Ω feedline to a multiband antenna. VAM-LP-DIP-4080 80/40M Diplexer, 200W ICAS ..............................................$359.99 VAM-LP-DIP-SPLIT 20/15/10M; 160/80/40M Split Diplexer, 200W ICAS ..........$359.99 VAM-LP-TR-101520 20/15/10 Triplexer, 200W ICAS ...........................................$389.99 VAM-LP-TR-204080 80/40/20M Triplexer, 200W ICAS ........................................$389.99 VAM-LP-TR-LBANDS 160/80/40M Triplexer, 200W ICAS ......................................$389.99 Band Pass Filters and Diplexers Antennas-Amplifiers' high-power band pass filters for HF operation are made with high-quality components and undergo rigorous testing/calibration to maximize performance in multi-station environments and during portable ops to protect receivers from excessively strong out-of-band signals. Ideal for both reception and transmission, these 12VDC fan-cooled filters boast low insertion loss and power handling capabilities from 2,000W-4,000W PEP. Engineered with advanced filter design, these 50 Ω passive devices are housed in a robust powdercoated aluminum enclosure. The compact filters (8.6" H x 17.9" W x 5.3" D) are equipped with silver-plated SO-239 connectors, ensuring minimal SWR and high attenuation of out-of-band signals across each filter’s band. Also choose from smartly engineered and proven 6M, VHF, UHF, and dual-band band pass filters. ATF-5500 160M, 4,000W PEP, <0.1 dB Insertion Loss .........................$339.99 ATF-5510 80M, 4,000W PEP, <0.12 dB Insertion Loss .........................$339.99 ATF-5520 40M, 4,000W PEP, <0.12 dB Insertion Loss .........................$339.99 ATF-5530 20M, 4,000W PEP, <0.12 dB Insertion Loss .........................$339.99 ATF-5540 15M, 4,000W PEP, <0.12 dB Insertion Loss .........................$339.99 ATF-5550 10M, 4,000W PEP, <0.15 dB Insertion Loss .........................$339.99 ATF-5555 60M, 2,000W PEP ..................................................................$459.99 ATF-5560 30M, 3,000W PEP, <0.18 dB Insertion Loss .........................$459.99 ATF-5570 17M, 2,000W PEP, <0.32 dB Insertion Loss .........................$459.99 ATF-5580 12M, 2,000W PEP, <0.4 dB Insertion Loss ...........................$459.99 6M Band Pass Filters Choose from two high-quality Antennas-Amplifiers' band pass filters for operating on the Magic Band. ATF-5900 Economical Receive-Only 6M BPF ......................................$108.99 ATF-5940 Transmit-Receive 200W 6M BPF..........................................$233.99 2M, 70cm, and Dual-Band Band Pass Filters ATF-6250 Economical Receive-Only 2M BPF ......................................$108.99 ATF-6260 Ultimate Receiving 2M BPF F-F ...........................................$145.99 ATF-6265 Ultimate Receiving 2M BPF M-F ..........................................$150.99 ATF-6290 Transmit-Receive 100W 2M BPF..........................................$235.99 ATF-6530 Transmit-Receive 200W 70cm BPF .....................................$247.99 ATF-6550 Band Pass Filter, 2,500W, 70cm ..........................................$468.99 ATF-6560 Low Pass Filter, 1,500W, 70cm ............................................$407.99 Diplexers ATF-6340 2M/70cm 200W Diplexer ......................................................$274.99 ATF-6343 2M/70cm Diplexer, Low Pass ...............................................$393.99 ATF-6344 2M/70cm Double 200W Diplexer.........................................$399.99 ATF-6347 2M/70cm 750W/750W Diplexer ...........................................$316.99 ATF-5555 KD9SV Keying Relay This high-speed, solid-state switching interface is designed to protect transceiver keying circuits from potential damage by amplifier relays. Transceiver keying circuits only handle a few milliamperes at low voltage, but some recent amplifier relays require over 150 mA at 12VDC. Additionally, high voltage and high current amplifier keying relays were common in amplifiers made between 1950 and 1975. The DXE-SV-KR can safely key all DC amplifier relays, including older relays and keying inputs that operate at high voltage, typically -100 or +110VDC (not AC). High voltage keying is handled by the device. Inspired by the original KD9SV Keying Relay, the device quickly and silently does the work of a normally open, (N.O.) ground-independent Double Pole Single Throw (DPST) relay. It provides two separate, completely isolated PTT outputs, each capable of handling up to + or - 450VDC at up to 500mA. The device's optically isolated PTT input only requires 2mA at 13.8VDC to key, so it is safe for any transceiver's amplifier keying circuit or any other "ground-on-transmit" PTT keying accessory. Built in an enclosure with RCA phono jacks, it is also QSK capable for keying any amplifier that supports high speed CW keying, typically a solid-state amplifier (or specially equipped tube amplifier) with a high-speed circuit for "Key In" PTT. It may also be used to isolate a straight key or a solid-state electronic keyer connection to any CW key input. It operates on 13.8VDC to an input 2.1mm DC connector. A mating 2.1mm plug and wire are included. Except for AC relay switching, the DXE-SV-KR replaces the Ameritron ARB-704. DXE-SV-KR KD9SV Keying Relay ............................................................. $109.99 XL Series High-Power Band Pass Filters Boasting up to 4,500W ICAS power handling and typical out-of-band rejection of >55 dB (sometimes as high as 75 dB), 4O3A High-Power Band Pass Filters (5.9" H x 24.4" W x 4.3" D) make an excellent choice for installing on the output side of a linear amplifier to filter out harmonics and broadband noise from the power amp. Inline filtering af er final amplification allows maximum reduction of transmitted broadband noise and harmonic energy. Other benefits include mitigating intra- and inter-station interference during contests, protecting receiver circuitry, and enabling full duplex operation on capable transceivers. The filters employ robust components for maximum mechanical stability: silver-plated high-Q coils, high-current military-grade capacitors, and heavy-duty aluminum enclosures with mounting flanges. Additionally, installing 4O3A filters in the antenna line af er the linear amplifier and antenna switch means the right filter will always be in circuit on the band/ antenna combination in use, and the operator will never have to worry about switching filters between the transceiver and linear amplifier. Filters come with 12VDC 40mA cooling fans. Enter "4O3A Band" at DXEngineering.com for more details. Part Number Band Connector Power Handling Price O3A-4O-BPFXL160N 160 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL160P 160 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL080N 80 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL080P 80 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL040N 40 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL040P 40 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL030N 30 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL030P 30 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL020N 20 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL020P 20 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL017N 17 Meters Type-N Female 4,500W $557.99 O3A-4O-BPFXL017P 17 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL015N 15 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL015P 15 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL012N 12 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL012P 12 Meters UHF Female (SO-239) 4,500W $515.99 O3A-4O-BPFXL010N 10 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL010P 10 Meters UHF Female (SO-239) 4,500W $557.99 O3A-4O-BPFXL006N 6 Meters Type-N Female 4,500W $525.99 O3A-4O-BPFXL006P 6 Meters UHF Female (SO-239) 4,500W $557.99 Triplexer/Combiner A game-changer for multi-operator contest stations, DXpeditions, and Field Day activities, this high-power combiner connects to a triband 20/15/10M antenna and allows it to be used by three stations running 4,500W simultaneously with a single coaxial feedline, eliminating the need for separate monoband Yagis. O3A-4O-HFC4500-N 20/15/10M Triplexer/Combiner, Type-N Female ................$642.99 O3A-4O-HFC4500PL 20/15/10M Triplexer/Combiner, UHF Female (SO-239) .....$642.99 Triplexer Extender The QPXC8 gives you the flexibility to create a combiner for a four-band antenna. Its flexibility lets you use it for a 40/20/15/10M Yagi, WARC, low-band quadraplexer, or other configuration. It can be used with NO3A filters or filters from other producers. O3A-4O-QPXC8-N Triplexer Extender, Type-N Female ................................. $909.99 O3A-4O-QPXC8-PL Triplexer Extender, UHF Female (SO-239) ....................... $909.99 WARNING: For Proposition 65 information, see p. 3 In-Stock Parts Typically Ship The Same Day.
