transmitter

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211 links - and 1 categories

Antennas : End-Fed
  • Feeding an End-Fed Antenna - End-Fed antennas are NOT balanced systems; but neither are verticals, ground planes, discones, windoms, zepps, Marconis, half-slopers, et al. Additionally, the low-impedance antenna port of your transmitter/receiver is not balanced.
    [ Hits: 18258 | Votes: 19 | Rating: 7.69 ]
Antennas : Homebrewing Techniques
  • Exploring the secrets of the Smith chart - If you're a Radio Engineer wannabee, you need to understand transmission lines. It's impossible to really understand transmitters and antennas without understanding lines. Using the Smith chart is far easier than really understanding the math by Chris Scott and associates
    [ Hits: 858 | Votes: 0 | Rating: 0.00 ]
Antennas : Theory : Antenna Gain
  • 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: 1169 | Votes: 4 | Rating: 4.50 ]
Antennas : Tuners
  • 10 m Aerial Matching Unit - This simple matching unit will allow a 10 meters aerial to be used right across the 10m band without the need to physically adjust the elements, and offers a virtual 1:1 VSWR at 50 ohms impedance to the transmitter.
    [ Hits: 3222 | Votes: 2 | Rating: 4.50 ]
Antique Radios : Repair and Restoration
  • Rebuilding the Collins 516F-2 Power Supply - The Collins 516F-2 is a heavy-duty power supply for the KWM-2/2A transceivers and the 32S-1,2,3 series of Collins transmitters.
    [ Hits: 1101 | Votes: 4 | Rating: 6.75 ]
DX Resources : Beacons : Beacon stations
  • The VE3TO Radio Beacon Transmitter - The VE3TO beacon transmitter is a hybrid, consisting of both modern solid state and old vacuum tube technology working on 10132.0 kHz
    [ Hits: 390 | Votes: 2 | Rating: 10.00 ]
Ham Radio : Clubs : Asia
  • Malaysian Amateur Radio Transmitters' Society - The malaysian amateur radio transmitters' society (marts) is the national organization for amateur radio (ham) operators in malaysia since 1952.
    [ Hits: 270 | Votes: 1 | Rating: 10.00 ]
Ham Radio : Clubs : Technical Specialty
  • Triangle ATV Association - The Triangle ATV Association is an organization of hams in the Raleigh-Durham-Chapel Hill NC area who communicate by means of our own personal TV transmitters and receivers.
    [ Hits: 244 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Antennas : VHF UHF Microwave : Microwave antennas
  • Makidenki - Transvertes, AO-40 Convertes, FM-TV transmitters UHF loop antennas
    [ Hits: 1165 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Digital and Packet Radio
  • W3YY FSK CW PC interface - A FSK/CW PC interface that will allow a PC to key your transmitter producing either a pure FSK or CW signal
    [ Hits: 475 | Votes: 2 | Rating: 8.00 ]
Operating Modes
  • Sights and Sounds of Digital Signals - Preview the waterfall signature of various digital signals and listen to the sound of the digital modes. Learn about the bandwidth requirements and why a linear transmitter path is critical to successful and correct use of many modes on the amateur bands by W1HKJ
    [ Hits: 575 | Votes: 2 | Rating: 9.50 ]
Operating Modes : Radio Direction Finding
  • Radio Frequency Beacon Finder - This project is a radio frequency receiver that will help the user the trace the direction and distance of transmitter beacon(s) operating at 433MHz frequency by Cornell Univerity
    [ Hits: 1245 | Votes: 6 | Rating: 5.00 ]
Operating Modes : Repeaters : USA
  • Repeater and Broadcast Transmitter Database - Searchable database of amateur repeaters and broadcast transmitters. The database covers the fifty U.S. states, the District of Columbia, and the ten Canadian provinces.
    [ Hits: 569 | Votes: 4 | Rating: 7.00 ]
Technical Reference : ATV
  • A simplified video control box - When one starts in amateur television, one begins with a small simple transmitter and a small camera. But very quickly, one needs to transmit audio signals with the pictures, then comes a second camera
    [ Hits: 156 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers : HF Amplifiers
  • COLLINS 30L-1 HF Linear Amplifier - The Collins 30L-1 Linear Amplifier has 1000 watts PEP power input on SSB and 1000 watts average on CW on all bands. It can be driven by the Collins 32S-3 Transmitter Collins KWM-2 or KWM-1 Transceiver, or most 70-100 watt exciters.
    [ Hits: 2874 | Votes: 1 | Rating: 8.00 ]
  • 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: 1319 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Beacon keyers
  • 30m QRSS Beacon Transmitter - This beacon puts out about 0.5W on 10.140MHz. It is intended to be used for Slow Morse (QRSS) operation.
    [ Hits: 678 | Votes: 0 | Rating: 0.00 ]
  • N7KSB Milliwatt transmitter - N7KSB used this 1/2 watt CW transmitter, with a roof-mounted ground-plane antenna to work all continents and over 30 countries.
    [ Hits: 2178 | Votes: 1 | Rating: 1.00 ]
Technical Reference : HF Radios Technical Reference : QRP Projects
  • Universal QRP Transmitter - Here's the homebrew Universal QRP transmitter adapted from work by Wes Hayward - W7ZOI. The circuit originally appeared in QRP Classics published in 1980 by the ARRL
    [ Hits: 2456 | Votes: 2 | Rating: 2.00 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • 500mw CW Transmitter - A very quick and easy way to get on the air is to build a "Michigan Mighty Mite" CW transmitter for 160, 80, 40 or 30 meters. It can't get simpler than this. It has very few parts, costs almost nothing, and it works! Cost estimate $10 by VE6WTF
    [ Hits: 7579 | Votes: 6 | Rating: 4.83 ]
  • 40 Meters QRP AM/CW transmitter - VU2VWN project to homebrew a CW for 40 meters band
    [ Hits: 1516 | Votes: 1 | Rating: 1.00 ]
  • 80m CW QRP transmitter - 80 metre ceramic resonator VXO CW Transmitter by VK1PK
    [ Hits: 1786 | Votes: 1 | Rating: 10.00 ]
Technical Reference : RF Signal Generators
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