Availability
4O3A Antennas
4O3A HFC4500 Signature Series Antenna Triplexer/Combiners
4O3A HFC4500 Signature Series Antenna Triplexer/Combiners are truly a game changer for SO2R, multi-operator contest stations, DXpeditions, and Field Day operation. They allow a single triband 20/15/10-meter Yagi antenna, fed with one coaxial feedline, to be used by three stations simultaneously, with each station running up to 4.5kW. The 4O3A Signature Series Triplexer System eliminates the need for separate monoband Yagi's on the 20m, 15m, and 10m bands. Three operators, three stations, and three amps—but only one feedline and one antenna. The 4O3A HF Triplexer System uses the high-power HFC4500 Combiner, which connects to a triband 20m/15m/10m antenna, and provides dedicated ports for 20m, 15m, and 10m. Each port must be connected to a 4O3A Series S Bandpass Filter. The Combiner is not intended for standalone use.
Not Yet Reviewed
$642.99
4O3A High Power Band Pass Filters
4O3A High Power Band Pass Filters are intended for installation on the output side of a linear amplifier, filtering out harmonics as well as broadband noise from the power amplifier. Typical Applications: • Mitigating intra and inter station interference during contests. • Protecting receiver circuitry from damage. • Reducing RFI egress and ingress during everyday operation. • Enabling full duplex operation (transmitting and receiving simultaneously) on capable transceivers. • High power handling capability – up to 4,500 Watts ICAS. • Exceptional out of band rejection, typically > 55 dB and sometimes as high as 75 dB on adjacent 'contest' bands thanks to the 5 pole filtering.
( 1 )
$515.99
—
$557.99
Clearance
Open Box
4O3A 8xAB Antenna Switches
4O3A 8xAB Antenna Switches integrate eight independent A/B switches into a single compact unit, enabling seamless switching between multiple antennas and radios. When paired with two 403A Antenna Genius switches (O3A-40-AG8X2 or O3A-40-AG8X2-N), it forms a powerful 8×4 antenna matrix, allowing up to eight antennas to be routed to four radios with exceptional isolation. Built with the needs of high-power stations in mind, the 8xAB Switch delivers robust performance, intuitive operation, and a clean, maintainable installation. The primary motivation behind the 8xAB switch is the integration of two Antenna Genius smart switches into an 8×4 Super Switch.
Not Yet Reviewed
$775.99
$737.19