test transmitter

test transmitter

Antennas : Towers

• KC1XX Contest Station - Amateur Radio Station owned by Matt Strelow. The station is designed for competition in the multi-operator multi-transmitter category of high-frequency DX contests. Running with 7 towers 6 rotators, 8 beverage listening antennas, and 4 spotting verticals
  [ Hits: 1763 | Votes: 2 | Rating: 6.5 ]

• Ameco - Text books relating to amateur radio (HAM radio), highpass and lowpass power filters, transmitter test loads (dummy loads), study tapes and disks to learn morse code, transceiver preamplifiers, antenna signal boosters.
  [ Hits: 2224 | Votes: 0 | Rating: 0 ]

• Ramsey Electronics - Large selection of affordable and fun hobby kits as well as a really neat selection of electronic gear. Transmitters and receivers kits, test equipments, RF test enclosures.
  [ Hits: 3739 | Votes: 3 | Rating: 8 ]

• 80M Fox-Or-Test Transmitter - The 80 metre fox-or/test transmitter is a small low power transmitter which is designed to be used as an alignment aid for running up 80 metre foxhunt or ARDF receivers. It is also usable as a micro transmitter for fox-or-ing events.
  [ Hits: 707 | Votes: 3 | Rating: 2.67 ]

• FT 1000MP MK V and Keyclicks - YaesuFT1000MK V stands out with improved close-spaced SSB transmit performance, reversing a trend seen in other modern radios. Featuring a class-A mode, it offers clean HV finals when kept out of ALC. However, two significant flaws persist: the noise blanker causes receiver IM distortion, and the transmitter lacks wave-shaping on CW, resulting in pronounced keyclicks. Preliminary tests reveal strong keyclicks +1kHz and -1kHz, prompting a combined modification to address both issues.
  [ Hits: 31 | Votes: 0 | Rating: 0 ]

• Explaining ARRL Radio Tech Reviews - Explaining ARRL Technical Reviews of Radios a brief tutorial on radio testing. The ARRL Lab tests radio equipment according to standardized test procedures, using calibrated professional test equipment. Info on transmitter and receiver tests
  [ Hits: 119 | Votes: 0 | Rating: 0 ]

• Double Tone IQ-Generator - Easy to use double tone IQ-generator for testing direct conversion SSB-transmitters based on phasemethod etc.
  [ Hits: 4463 | Votes: 9 | Rating: 3.78 ]

• Arduino QRP Transceiver: DIY Success on HF Bands - This article introduces an Arduino-based QRP CW Transceiver designed for lower HF bands. The journey begins with the Wotduino, evolving from a keyer to a multi-mode beacon. The development includes a QRP transmitter and culminates in a receiver inspired by Roy Lewallen design. The transceiver, controlled through a control bus features a signal path, modulation, filtering, and adjustable frequency settings. Despite initial testing intentions, successful QSOs on 80 and 40 meters showcase its functional capabilities.
  [ Hits: 111 | Votes: 1 | Rating: 1 ]

• Homebrew dummy load - A simple 50 ohm dummy load to test transmitters. includes a simple RF diode detector to measure the peak voltage, and calculate the power
  [ Hits: 962 | Votes: 0 | Rating: 0 ]

• Band-Pass Filters for HF Transceivers - Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
  [ Hits: 4345 | Votes: 3 | Rating: 6.33 ]
• Receiver Band-Pass Filters - Third-order Cauer filters can boost performance of multi-transmitter, multi-operator contest stations to the next level. The filters are practical and you don’t need expensive test equipment to align them.
  [ Hits: 885 | Votes: 1 | Rating: 5 ]

• Two Tone Generator - A two tone generator is an essential test gear made with just four transistors that helps you evaluate your amplifiers, mixers, receivers for distortion. Distortion makes all the difference between a pleasant receiver and a horrible sounding one, between a clean transmitter and bad, splattering one on air.
  [ Hits: 81 | Votes: 0 | Rating: 0 ]
• Simple 2-tone generator - A simple 2-tone-generator for testing the linearity of SSB transmitters. This device is as simple as useful. With 2 transistors and an oscilloscope, it is fairly easy to test the linearity of your SSB transmitter. The 2-tone-method is a standardized test method that can be used to determine the maximum output and the amplification characteristics of a sideband transmitter.
  [ Hits: 111 | Votes: 0 | Rating: 0 ]