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Electronics Converters and Calculators


Calculators conversion charts and converter programs available for use. Some of these are directly related to interest in the electronics
post 11 Feb 2024
Electronics Converters and Calculators

Antenna Calculator Links

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Short tuned vertical with concentrated loading
This is a simple calculator to estimate the Antenna Factor of a short 0.25 l'ambda vertical

Single Band Dipole Calculator
Actual length depends on conductor diameter and end effects

Single layer air core inductor calculator
The calculation is based on the classic Wheeler's formula for single-layer inductance air core, tightly wound

Slim Jim antenna calculator & Slim Jim information
This calculator can be used to design a Slim Jim or a J Pole antenna. The Slim Jim, can be a great portable roll up antenna, if made out of 300? or 450? ladder line twin feeder. A Slim Jim for 2m 145MHz will be 1.5 metres long, and 70cm 433MHz will be 0.5 metres. Alternatively, for permanent installations, the copper tube


Noise suppression with X-phase II

Noise suppression with X-phase II This device similar devices are known as QRM eliminators or noise killers, makes it possible

The K9AY loop antenna for 160 and 80m bands

The K9AY loop antenna for 160 and 80m bands You don't have the space to put up a 4 beverage antenna's, an ewe or a 4-square and want 'good ears' on 160 and 80m? no problems try a k9ay loop antenna

Microphone boom headset for the FT-897

Microphone boom headset for the FT-897 Boom length m. 5.24-fiberglass spreaders m. 2.95-loops dimensions m. 2.00 x 4.27 with 5.00 m