input

113 links

Cubical Quad Calculator - YT1VP
An online javascript calculator for cubical quad antennas simply input the resonating frequency to calculcate ...

[ Hits: 1013 | Votes: 20 | Rating: 7.25 ]
J-Pole Antenna Plan and Calculator - WB5CXC
An online J Pole antenna calculator that need just to input the frequency and calculates ...

[ Hits: 980 | Votes: 25 | Rating: 4.69 ]
Calculate Antenna Lenght in feet, inches and meters - K7TJO
Inches and meters Javascript Wavelength Calculator allow to input a frequency in MHz and calculate ...

[ Hits: 504 | Votes: 3 | Rating: 4.67 ]

When and Where to Use Baluns - W4ULD
Baluns are usually used by Hams to feed dipole antennas with 50 ohm coax and ...

[ Hits: 1523 | Votes: 9 | Rating: 7 ]

End-Fed HalfWave Matching Unit for SOTA operations - VK3IL
An end fed half wave antenna matching unit made of 3 24 turns ratio on ...

[ Hits: 259 | Votes: 0 | Rating: 0 ]

QSO map generator - SM7LCB
With this tool it is possible to create QSO maps overlay on Google maps there ...

[ Hits: 1037 | Votes: 6 | Rating: 3.83 ]

The HotPaw Morse Code Decoder - HotPaw
The HotPaw Morse Code Decoder decodes the tones of Morse Code characters from audio input ...

[ Hits: 917 | Votes: 0 | Rating: 0 ]

VB Cable - VB Cable ^pop
VB Audio CABLE is a Windows Audio Driver working as Virtual Audio Cable Will allow ...

[ Hits: 25378 | Votes: 78 | Rating: 6.53 ]

Decode Morse Code with Arduino
A sketch to read the input from the microphone and translate the dots and dashes ...

[ Hits: 1877 | Votes: 5 | Rating: 7.4 ]

12V input, 12V battery charger
The charger described here is intended for charging small 12 Volt lead acid batteries ...

[ Hits: 343 | Votes: 0 | Rating: 0 ]

Air cored inductor calculator - OZ1CX
Online calculator for Input coil data, LC Resonant Frequency and L match

[ Hits: 475 | Votes: 2 | Rating: 1 ]
Online Inductive Reactance Calculator - JJ Johnson
An online inductive reactance calculator, accepts as input Frequency and Inductance

[ Hits: 87 | Votes: 2 | Rating: 1 ]

A home-built low-pass filter for 4m
This unit uses four capacitors only two of which are variables and a single tapped ...

[ Hits: 589 | Votes: 0 | Rating: 0 ]

U310 FET preamplifier
Extremely reliable FET preamplifier can handle several watts directly into either the input or the ...

[ Hits: 1052 | Votes: 2 | Rating: 9 ]

RFI on Samsung HDTV
RF is causing strange issues on the touch sensor buttons controlling inputs volume channels on ...

[ Hits: 328 | Votes: 0 | Rating: 0 ]

Raspberry Pi and Sound Input - KB9MWR
Connecting and configurig an USB Sound Card key to the raspberry Pi to allow digital ...

[ Hits: 650 | Votes: 1 | Rating: 1 ]

Cross Band Repeaters - W9SM
Crossband Repeating is a process where a Ham transmits one signal on one band typically ...

[ Hits: 208 | Votes: 0 | Rating: 0 ]

Return Loss Bridge - K8IQY ^updated
This Return Loss Bridge has been designed to characterize the input impedance of a receive ...

[ Hits: 323 | Votes: 3 | Rating: 1 ]

Sweep Generator - G0UPL
A sweep generator that produces a sawtooth waveform which sweeps the oscilloscope beam from left ...

[ Hits: 675 | Votes: 2 | Rating: 1 ]

Transverter for the 4m-Band - XV4-10 - DF2FQ
The XV4 10 is a linear transverter for the 4m band to be used with ...

[ Hits: 257 | Votes: 0 | Rating: 0 ]