switch

switch

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• Remote Control Antenna Switch - The Remote Control Antenna Switch consists of two circuit boards. The control unit and the remotely controlled switch
  [ Hits: 1150 | Votes: 0 | Rating: 0 ]
• Comparator-based RF switch - This is a concept paper, not a constuction article. There are too many variables to propose a one size fits all design. However, this paper should give you the basic idea how to do it
  [ Hits: 782 | Votes: 1 | Rating: 5 ]
• HF Antenna Switch - The purpose of this remote antenna switch was to be able to select between four different antenna combinations The unit was designed to work at RF power levels of around 100 watts by G8JNJ
  [ Hits: 954 | Votes: 0 | Rating: 0 ]

• Multi Band Antenna Traps - These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.
  [ Hits: 4851 | Votes: 3 | Rating: 6 ]

• Switched inductor L match tuner - A 10 to 80 meters band qrp antenna tuner by KC8AON, based on Steve Weber, KD1JV "ALT or Altoids L Tuner"
  [ Hits: 6468 | Votes: 9 | Rating: 7 ]

• CommsAudit - Commsaudit uk, i/q quadrature , hf receivers, rf, multicoupler, multicouplers, switch matrix, antenna matrices, masthead amplifier,, vhf receiver, uhf,
  [ Hits: 607 | Votes: 9 | Rating: 8.45 ]
• microHAM - Accessories for your hamshack, such as Band Decoders, various types of Antenna Switches, Antenna Stacking devices, special devices designed dedicated for the SO2R operating technique, USB Interfaces, cw keyers and many others
  [ Hits: 3605 | Votes: 2 | Rating: 10 ]

• SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.
  [ Hits: 8406 | Votes: 8 | Rating: 6.12 ]

• Jackson Harbor Press Kits - Ham Radio Kits, morse keyers, Morse code voltmeter / DC switch / battery saver
  [ Hits: 1437 | Votes: 1 | Rating: 10 ]

• Applied Instruments - Applied instruments manufactures test and measurement equipment for the broadband telecommunications industry. products include carrier generators, signal level meters, rf switches, spectrum analyzers and a return alignment system.
  [ Hits: 688 | Votes: 0 | Rating: 0 ]

• QSK for the TL-922 and SB-220 mods - Beautifully constructed amplifiers. Unfortunately, are not suited for high speed T-R switching, a necessary attribute for operating AMTOR, QSK-CW, or SSB-VOX modes.
  [ Hits: 2980 | Votes: 7 | Rating: 8.57 ]

• All American - Distributor of electronic components, ull range of semiconductors (active components), including relays, circuit breakers, transistors, diodes, memory devices, microprocessors, microcontrollers, and other integrated cuircuits, as well as passive components, such as capacitors, resistors, inductors, and electromechanical products, including cable, switches, connectors, filters, and sockets.
  [ Hits: 1116 | Votes: 0 | Rating: 0 ]
• DERF electronics corporation - Distributor of electronic components like diodes Transistors Microcontrollers Microprocessors connectors, switches, relays, integrated circuits, eproms, leds
  [ Hits: 572 | Votes: 2 | Rating: 10 ]

• SB220 SB221 arcing problems improvements mods - This article explores the claim an amplifier might arc from a parasitic oscillation, damaging capacitors, bandswitches, or other components.
  [ Hits: 1309 | Votes: 2 | Rating: 10 ]

• IK8MKK Home-Made equipment - Two 50 Mhz amplifiers and antenna switch
  [ Hits: 2589 | Votes: 2 | Rating: 9.5 ]

• A Coax Switch - An inexpensive coax switch. shows a proven inexpensive home-made antenna selection switch. If you question the use of a cheap slide switch and SO239 coax sockets, read on. Measurements in a physics lab showed there to be practically no reflection on HF and even on 70 cm the SWR was below 1.3 : 1
  [ Hits: 9682 | Votes: 8 | Rating: 7.5 ]
• Beverage antenna switch - How could we share the Beverage antennas on more than one station using this homemade remote antenna switch, a project by TK5EP
  [ Hits: 1656 | Votes: 1 | Rating: 10 ]

• A diode-switched band-pass filter - High speed silicn diodes work well as RF switches. This article describes how to use diodes for selecting two or more filters ARRL QST article by W1FB
  [ Hits: 2305 | Votes: 3 | Rating: 4.67 ]

• The Smart Switch - The purpose of this project is to build a smart switch A smart swith is a swith that needs a short press and the power will be turned ON.
  [ Hits: 969 | Votes: 0 | Rating: 0 ]

• Noise Sources - Computers, TV's, and Switching Systems can cause noises to your receiver
  [ Hits: 855 | Votes: 1 | Rating: 10 ]

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