We added 3 new links to our pages
Home : Antennas : Antenna Calculators
- Quad Antenna On-line Calculator
new
- Cubical Quad Antenna On-line Calculator helps on defining the size of each element and spreader.
Simply give the resonating frequency and it will calculate size of each element.
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Home : Antique Radios : Repair and Restoration
- A Collins 75A-4 Restoration
new
- This page details the restoration of an early production Collins 75A-4 Amateur Band Receiver that had previously been vandalized.
[ Hits: 34 | Votes: 2 | Rating: 9.5 ]
Home : Technical Reference : Vector Network Analyzer
- miniVNA PRO Modifications
new
- 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: 45 | Votes: 1 | Rating: 1 ]
