![]() The HF-SHF Galvanic Isolator can achieve up to 40dB noise rejection due ground loops. That gives protection between connected circuits that could be at different ground potentials, source of unexpected damages on receivers, while avoiding the appearance of noisy ground loops. The broadband 3MHz to 2.5GHz HF-SHF Galvanic Isolator ensures full galvanic isolation between connected radio equipment and accessories ensuring that signal and ground paths on input and output ports are completely isolated from each side, only magnetic signal is transferred. Protection again different ground potentials. Outdoor mounting, mast clamp and user manual in CDROM format.įull galvanic isolation between connected radio equipment. Connector option: N SKU: HST-212NĪntenna Galvanic Isolator. Outdoor mounting version optionsĪntenna Galvanic Isolator Outdoor version. Same noisy situation but with plugged-in Antenna Galvanic Isolator.ġ0kHz - 150MHz Antenna Galvanic Isolator. "Frying noise" on receiver antenna port without Antenna Galvanic Isolator. It allows isolate the antenna galvanically from the receiver only magnetic signal is coupling from the antenna.Ĭover: ABS material rated to UL 94V-0. Outdoor version of the above broadband antenna galvanic isolator. Hi-Power 10kHz - 150MHz LF-HF-VHF Antenna Galvanic Isolator. Connector option: N SKU: HS-100Nġ0kHz to 150MHz Antenna Galvanic Isolator and user manual in CDROM format. Hi-Power 10kHz to 150MHz Antenna Galvanic Isolator. Same noisy situation but with in-line plugged-in Antenna Galvanic Isolator. "Frying noise" on receiver antenna port without in-line Antenna Galvanic Isolator. Hi-Power 10kHz to 150MHz Antenna Galvanic Isolator datasheet. Insertion loss ( attenuation) in function of frequency. Earth terminal post for antenna separate earth connection. Connector Options: SO-239, BNC, "N type " available. Power rating: 200 watts continuous wave.(400watts PEP) Flat response along the covered range of frequencies. It includes gas discharge tube as protection against electrostatic discharges. It embedded a high isolation broadband transformer wound on a large toroid core 200 Watts power rated. The Antenna Isolator can achieve up to 40dB noise rejection, depending on installation. This can cause mains noise to enter into the receiver because either the feeder mains earth line is the return path for the antenna or noise being coupled to the antenna and radiated. In most station installations the antenna coaxial feeder is connected to mains earth at the receiver side. This type of ground loop issue can be solved by using galvanic isolation between the receiver earth system and the antenna earth. Ground loops in SDR radios induced by the antenna feeder are very common if the computer ground is connected to the radio system increasing local background noise. The indoor broadband antenna galvanic isolator allows isolate the antenna galvanically from the receiver only magnetic signal is coupling from the antenna. Specifically recommended to work with SDR radios. ![]() Rejects pick-up noise from the antenna feedline by removing ground loops. Snap On and Slip on Feed line chokes available in sizes to fix cables with outside diameters of 1/4", 3/8", 1/2", 3/4", 1" - check website for other size options.Galvanic Isolators from Heros Technology Ltd All kits come with instruction manual which covers assembly and application tips.Īs you can see from the impedance vs frequency graph, you can very effectively increase the choking impedance by increasing the number of beads on the cable. However, it is strongly suggested that they be covered to protect the plastic covers from weathering – use electrical tape for best results or heat shrink to ensure longer life. The beads clamp to the cable and may be operated as is for indoor use. Minimum recommended total impedance is 500 ohms at frequency of interest. Select 10 bead version for 160 meter use. Typical Impedance per split bead: 10 MHz: 100 ohms, 25 MHz: 163 ohms, 100 MHz: 275 ohms, 250 MHz: 275 ohm ![]()
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