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Search Results for "low power"

93 links - and 1 categories

Antennas
  • Tenna Dipper Kit - The "Tenna Dipper" is a low power antenna analyzer and ATU tuning aid. With this handy accessory, you can determine the 50 Ohm resonance frequency of antennas or you can adjust your antenna tuner for a 50 Ohm match without generating QRM
    [ Hits: 3682 | Votes: 3 | Rating: 4.00 ]
Antennas : 160M
  • An 80-160 magnetic loop antenna - A classic diamond shape loop antenna that works fine on 80 and 160 meters band. This loop design allow a few watts power only and include part list and construction details.
    [ Hits: 5071 | Votes: 2 | Rating: 1.00 ]
Antennas : Baluns : 4 to 1 balun
  • W1CG Low Power Balun Kit - Contruction manual to build a 4:1 balun, it has good performance from 160 through 10 meters.
    [ Hits: 3916 | Votes: 4 | Rating: 7.00 ]
  • Low Power 4:1 Balun - Build a Low Power 4:1 Balun , by Charles Greene, W1CG with full-color, full-resolution graphics from the pages of QRP Homebrewer
    [ Hits: 3547 | Votes: 1 | Rating: 5.00 ]
Antennas : Collinear Antennas : Feed Lines
  • Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
    [ Hits: 4134 | Votes: 2 | Rating: 5.00 ]
  • Measuring Cable Loss - Improving measurement accuracy when low-power analyzers are used.
    [ Hits: 583 | Votes: 2 | Rating: 7.50 ]
Antennas : Portable
  • DCTL Portable Antenna - A Low -Power, Distributed Capacitance Twisted Loop , indoor portable HF antenna by Monty Northrup, N5ESE
    [ Hits: 1880 | Votes: 2 | Rating: 10.00 ]
Antennas : Tuners
  • The "Woodpecker" Tuning aid - This little gadget is that it allows you to tune up at full peak output power, whilst limiting the average power to a fraction of the peak, thereby protecting the PA from meltdown
    [ Hits: 3495 | Votes: 2 | Rating: 7.50 ]
  • Emtech ZM-2 Antenna Tuner Kit - The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP (low power). It utilizes the well-known Z-match circuit, which is especially useful for balanced antennas (like dipoles and loops).
    [ Hits: 3040 | Votes: 3 | Rating: 1.00 ]
DX Resources : Beacons : Beacon stations
  • WA8YWO - High Frequency Expermental Beacon "WV". The Beacon operates on the frequency of 13.55567mhz. This Beacon is very low power. It operates under Part 15 of the FCC Rules and Regulations. It transmits with only 1.5 milliwatts of power
    [ Hits: 226 | Votes: 0 | Rating: 0.00 ]
Ham Radio : Blogs : USA
  • WA5ICA web log - The Internet Home of Amateur Radio Station WA5ICA Adventures with low power and a lower budget
    [ Hits: 166 | Votes: 1 | Rating: 7.00 ]
Manufacturers : QRP Kits
  • Wilderness Radio - The only source for kits aimed specifically at the outdoor QRP enthusiast. These kits, field-tested by members of the NorCal QRP Club, represent the state of the art in portability, low power consumption, high performance, and flexibility.
    [ Hits: 4429 | Votes: 3 | Rating: 7.00 ]
Manufacturers : Transceivers
  • Low Power Radio and Broadcast Company - Manufacturers of high performance low power am transmitter products: sstran amt3000, bc-100, and the mw-250. for home and professional use.
    [ Hits: 2446 | Votes: 1 | Rating: 5.00 ]
Operating Modes : 50 Mhz Operating Modes : Mobile
  • W6JOE's Power Box - This is W6JOE's description of a battery box installation for an HF Mobile rig, which followed a number of messages on the subject on the Mobile - Portable mailing list. Interesting batteries setup.
    [ Hits: 479 | Votes: 1 | Rating: 10.00 ]
Software : Antenna analysis
  • Meter Mate - SWR Graph Software - Meter Mate is a companion utility for your directional watt meter that allows you to calculate the SWR reading when the forward and reflected power readings are measured. In addition to calculating the antenna system SWR Meter Mate will also plot the SWR curves of all of your antennas onto graphs that may be printed out.
    [ Hits: 1461 | Votes: 11 | Rating: 5.26 ]
Technical Reference : Amplifiers : HF Amplifiers
  • A LF power amplifier - A Low Frequency (LF) RF Power Amplifier by VK5BR it operates in a linear mode and can handle CW, AM and SSB.
    [ Hits: 2810 | Votes: 1 | Rating: 1.00 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • Low power VHF RF amplifier - Low power VHF RF amplifier with VMP1 Mosfet by IZ1BTS IK1XPD
    [ Hits: 1965 | Votes: 5 | Rating: 8.00 ]
Technical Reference : Audio
  • Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.
    [ Hits: 3277 | Votes: 13 | Rating: 7.30 ]
Technical Reference : Dummy Loads
  • A low cost dummy load - This article describes a low-cost, low-to-moderate power dummy load, which presents a 50-Ohm resistive load from HF through 440MHz.
    [ Hits: 6134 | Votes: 6 | Rating: 6.17 ]
Technical Reference : Filters
  • 1.8-54 Mhz Low pass filter - An easy to make HF low pass filter form high power by k8cu
    [ Hits: 3222 | Votes: 2 | Rating: 2.00 ]
Technical Reference : QRP Projects Technical Reference : QRP Projects : QRP CW Transceiver
  • 40 meter QRP Transceiver - This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer
    [ Hits: 7514 | Votes: 4 | Rating: 7.25 ]
Technical Reference : Vacuum tube
  • Vacuum tube liquid cooling system - This article describes an alternative to water as the cooling liquid for amateur radio vacuum tube power amplifiers. This cooling system is designed for adequate vacuum tube cooling, reasonable cost, and very low maintenance. By K8CU
    [ Hits: 474 | Votes: 0 | Rating: 0.00 ]
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