hf analyser

8 links

RF Trap Resonant Frequency - RF traps for a lightweight 40/30/20/17/15m inverted V dipole antenna for SOTA purposes and how you can use a modern antenna analyser to find the resonant frequency of a HF trap.
[ Hits: 199 | Votes: 0 | Rating: 0 ]

VK5JST VHF AERIAL ANALYSER - A VHF antenna analyzer KIT with full assembly instructions and documentation
[ Hits: 579 | Votes: 2 | Rating: 5.5 ]

MFJ-259B Reviews - eHam reviews of the MFJ-259B HF/VHF Antenna Analyser
[ Hits: 206 | Votes: 0 | Rating: 0 ]

Spectrum Lab ^pop - DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more. Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle
[ Hits: 47778 | Votes: 56 | Rating: 6.97 ]

ZL2PD HF RF Signal Generator - This circuit came out of some work done for two antenna analysers
[ Hits: 825 | Votes: 2 | Rating: 8 ]

Digital HF Antenna Analyser Project - This antenna analyzer measures complex impedance over the 1.6 - 33 MHz HF spectrum
[ Hits: 1385 | Votes: 0 | Rating: 0 ]
Analog HF Antenna Analyser - A simple antenna analyser for the HF spectrum with a built-in signal generator with 3-digit LED frequency display.
[ Hits: 1016 | Votes: 0 | Rating: 0 ]
miniVNA PRO Modifications - The mini Radio Solutions miniVNA PRO is the only affordable vector network analyser (VNA) I know of that offers remote wireless operation. This is very interesting because it allows to measure the input impedance of HF antennas installed at height without having to deal with coax cable lengths, baluns nor common mode suppression chokes. However, to render the miniVNA PRO truly field proof, it requires a number of significant modifications.
[ Hits: 136 | Votes: 5 | Rating: 7.8 ]