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879 links - and 26 categories
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Antennas : Feed Lines- 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 ]
- Feeder Radiation
- Connecting centre fed antennas, dipoles, yagis, rhombics, loops to coaxial cable, unless care is taken, it is not difficult to end up with feeder radiation resulting in power loss and the radiation characteristics changes
[ Hits: 1830 | Votes: 4 | Rating: 8 ]
- Antenna Gain to ERP
- A radio's transmitting power can be concentrated along the horizon by use of a GAIN antenna. Although you may still be transmitting with four watts of power, your effective radiated powerwill be greatly increased. This table shows the effects of antenna gain on a transmitter with 4 watts of transmit power.
[ Hits: 1386 | Votes: 4 | Rating: 4.5 ]
- Windsor Exports
- Supplier and exporter of generator, diesel generator, petrol generator, industrial generator, silent generator, power generator, electricity generator, gas generator, air cooled generator, gensets 1kva, 2kva, 5kva, 10kva, 50kva, 100kva, 250kva
[ Hits: 676 | Votes: 0 | Rating: 0 ]
- Keithley Instruments Inc.
- Digital multimeters, power supplies, frequency counters, RF analyzers, signal generators
[ Hits: 617 | Votes: 0 | Rating: 0 ]
- Phase Matrix
- Frequency Counter w/Selective Power Measurement, Microwave Sythesized Signal Generator
[ Hits: 355 | Votes: 1 | Rating: 10 ]
- Hioki
- Memory recorders, Power meters, testers and multimeters, noise testers, signal generators
[ Hits: 666 | Votes: 1 | Rating: 10 ]
- Yokogawa
- Maker of optical spectrum analyzers, digital oscilloscope, digital power meters and more test equipmente related products
[ Hits: 1128 | Votes: 0 | Rating: 0 ]
- Yaesu FT-102 page
- Relay substitution tutorial, power amplifier tuning and Technical Characteristics
[ Hits: 901 | Votes: 2 | Rating: 4 ]
- Icom IC-756 PRO Repair
- Repair of a 756pro that was powering up always on TX due to some damage in the ACC1 connector area
[ Hits: 1149 | Votes: 2 | Rating: 4 ]
- 5 Amp power supply for portable usage
- A 13,8v/5Amp 78H05 based power supply for portable use. In this example used to power up a Yaesu FT-817
[ Hits: 7622 | Votes: 7 | Rating: 6 ]
- SigJenny
- SigJenny turns your PC into a flexible and powerful audio signal generator for free.
It can create multiple waveforms, sweep, fire single or repeating tone bursts. You can save your sound as a wav file, display a frequency response, use SigJenny a bit like an oscilloscope, and do a very good impression of a police car!
[ Hits: 17770 | Votes: 22 | Rating: 6.72 ]
- RF Amplifier basics
- Introduction to RF power amplifiers. Basics and guidelines. by wb0nni
[ Hits: 1675 | Votes: 1 | Rating: 1 ]
- Amplifier for 15 and 17 meter band
- The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply by ON6MU
[ Hits: 1609 | Votes: 0 | Rating: 0 ]
- Power Supply Design
- A home learning tutorial on the basics of designing simple power supplies for radio projects by VK2TIP
[ Hits: 2271 | Votes: 0 | Rating: 0 ]
- HV power supplies
- WV0NNI 2,800 VDC @ 2 Amps Continuous Variac adjusts filament voltage. A voltage doubler circuit, well suited for smaller, compact linear amplifiers.
[ Hits: 1402 | Votes: 1 | Rating: 5 ]
- 30 Volt Computer Power Supply Stack
- What do you do with a bunch of old computer power supplies?
[ Hits: 2895 | Votes: 4 | Rating: 7.5 ]
- Multi-functional Power Supplies
- Two types of multi-functional Home-brew 6/8Amps - 20 Ampere variable power supplies by ON6MU
[ Hits: 1765 | Votes: 3 | Rating: 8.67 ]
- 12/20 Ampere power supplies
- Two types of home-brewed 12/20 Ampere 13,8volt power supplies, including detailed part lists by ON6MU
[ Hits: 8405 | Votes: 8 | Rating: 6.12 ]
- Astron RS35m Power Supply Schematic
- Astron RS35m Power Supply Schematic annotated with Notes from QST Hands-On Radio, "Experiment #35 Power Supply Analysis" PDF File
[ Hits: 10242 | Votes: 32 | Rating: 8.25 ]
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