switch

190 links - and 2 categories

Beverage switch-box - DB9EX
A home made Beverage system for portable use The goal was to switch between 4 ...

[ Hits: 115 | Votes: 1 | Rating: 8 ]
Reversible RG6 Beverage Antenna - VE3VN
A project about reversible unidirectional Beverage antennas plus a remote switching system conveniently controlled by ...

[ Hits: 185 | Votes: 3 | Rating: 7 ]

Outdoor 80m/40m bands Magnetic loop antenna - PA0NHC
No matching adjustments needed Directly perfect match to 50 Ohms using a remotely switched wideband ...

[ Hits: 225 | Votes: 0 | Rating: 0 ]

Short Antenna for 40-30-20 Meters Band - dj0ip
This page describes an entirely simple One Knob matchbox that will match this antenna efficiently ...

[ Hits: 238 | Votes: 1 | Rating: 7 ]

Building a VHF Contest Station - W5ZN
Building an amateur station for competitive radiosport involves a number of critical steps regardless of ...

[ Hits: 337 | Votes: 1 | Rating: 4 ]

Elecraft K2 Preselector Modification - NJ0IP
Although most Preselectors are designed with an internal T R relay theoretically enabling direct insertion ...

[ Hits: 190 | Votes: 0 | Rating: 0 ]

Homebrew 1 Watt 2.4 GHz Power Amplifier - N9ZIA
This will show you how to add a RF power amplifier to your Proxim Symphony ...

[ Hits: 159 | Votes: 4 | Rating: 6.5 ]

Antenna Switch - N6DLH
An home made antenna switch with a Dummy Load selector If you forget the radio ...

[ Hits: 323 | Votes: 3 | Rating: 8 ]
Building a SainSmart USB Antenna Switch - W6AER
Building an automatic 8ch USB Relay switch using an existing Ameritron RCS 8V Remote Control ...

[ Hits: 155 | Votes: 0 | Rating: 0 ]
Automatic Arduino Antenna Switch - W0IH
A Programming-Free Automatic Arduino Antenna Switch project published on NCJ

[ Hits: 454 | Votes: 0 | Rating: 0 ]
OTRSP Antenna Selector - SP7DQR
Open Two Radio Switching Protocol Antenna Selector on ATMEL ATmega8 microcontroller

[ Hits: 92 | Votes: 0 | Rating: 0 ]
Controlled Antenna Switch - NutsVolts
A four position HF antenna switch with PC control

[ Hits: 232 | Votes: 1 | Rating: 8 ]

Automatic antenna switch with Arduino Nano - OK2WY
Arduino Nano board based antenna coax antenna switch intended for use with ICOM CI V ...

[ Hits: 141 | Votes: 1 | Rating: 9 ]
IC-7300 Arduino Based Antenna Switch - G4HSK
An Arduino Based Antenna Switch For The IC 7300 that monitors the band voltage from ...

[ Hits: 125 | Votes: 0 | Rating: 0 ]

A switched Capacitor Audio Filter - AA8C
Here is a rather nice audio filter for use with Ham Radio gear It features ...

[ Hits: 73 | Votes: 0 | Rating: 0 ]

A compact 5 bands remote switchable BPF - ON7EQ
These band filters are based on 3 or 5 sections Butterworth band pass filters maintaining ...

[ Hits: 224 | Votes: 0 | Rating: 0 ]

A Foot Switch for the Future - JH5GHM
A prototype of a switch foot made on a square aluminium stock frame

[ Hits: 310 | Votes: 0 | Rating: 0 ]

CW Key-to-Rig Switch Box - AB3AP
This is an easy afternoon project to switch multiple cw keys between several rigs If ...

[ Hits: 46 | Votes: 0 | Rating: 0 ]

Blocking Dynamic Range in Receivers - SM5BSZ
An explanation of the different procedures and definitions that are commonly used for blocking dynamic ...

[ Hits: 175 | Votes: 0 | Rating: 0 ]

Measuring with a MiniVNA - N4SPP
Measuring technicques using a MiniVNA author describes how to determine and unknown inductance or how ...

[ Hits: 186 | Votes: 1 | Rating: 1 ]