Канал: Tony Breathnach, EI5EM

Building the ATU-100 Automatic HF ATU

Building the ATU-100 Automatic HF ATU

EGV-9B Tested on all Bands

EGV-9B Tested on all Bands

Building the EGV-9B QRP CW Transceiver Kit

Building the EGV-9B QRP CW Transceiver Kit

Review of EGV+V2 CW QRP Transceiver

Review of EGV+V2 CW QRP Transceiver

Building the EGV+v2 CW Transceiver Kit

Building the EGV+v2 CW Transceiver Kit

Building QRP Labs 50W Amplifier

Building QRP Labs 50W Amplifier

An RF-activated Relay Project for the QRP Labs 50W amplifier

An RF-activated Relay Project for the QRP Labs 50W amplifier

RF activated relay

RF activated relay

EI5EM South Dublin Radio Club Presentation Videos

EI5EM South Dublin Radio Club Presentation Videos

Refurbishing and Upgrading my Ten-Tec T-Kit 1320

Refurbishing and Upgrading my Ten-Tec T-Kit 1320

RF Activated CW Sidetone Oscillator

RF Activated CW Sidetone Oscillator

A HF Antenna Switch Box for Four Inputs and Two Outputs (incorporating Morse key switching).

A HF Antenna Switch Box for Four Inputs and Two Outputs (incorporating Morse key switching).

An Outboard Speaker Module for the QCX Mini CW QRP Transceiver

An Outboard Speaker Module for the QCX Mini CW QRP Transceiver

A Homebrew Active CW Filter

A Homebrew Active CW Filter

A Homemade Helical Bandpass Filter for the Two-Metre Amateur Radio Band

A Homemade Helical Bandpass Filter for the Two-Metre Amateur Radio Band

A 2m Bandpass filter for RF noisy SOTA sites.

A 2m Bandpass filter for RF noisy SOTA sites.

Homebrew Spurious Noise Cancelling Unit

Homebrew Spurious Noise Cancelling Unit

A Dual Band (20/40m) Short Fan Dipole using Loading Coils

A Dual Band (20/40m) Short Fan Dipole using Loading Coils

A Homebrew 455 kHz BFO

A Homebrew 455 kHz BFO

An SWR Meter Project for HF

An SWR Meter Project for HF

Dual Band Nested Dipoles for 40m and 30m Amateur Radio Bands

Dual Band Nested Dipoles for 40m and 30m Amateur Radio Bands

Sample CW QSO with Luis EA1FGN

Sample CW QSO with Luis EA1FGN

A Homebrew Four Element 2 Metre Portable Yagi Antenna

A Homebrew Four Element 2 Metre Portable Yagi Antenna

A Morse Code Practice Oscillator

A Morse Code Practice Oscillator

A Fun FM Radio Receiver Project

A Fun FM Radio Receiver Project

A Homebrew Magnetic Loop Antenna for 40m, 30m and 20m by Tony (EI5EM).

A Homebrew Magnetic Loop Antenna for 40m, 30m and 20m by Tony (EI5EM).

Forgetting The Corona Virus For A Few Hours In Glorious Dublin Sunshine

Forgetting The Corona Virus For A Few Hours In Glorious Dublin Sunshine

Variable Capacitor Control for a Magnetic Loop Antenna (MLA).

Variable Capacitor Control for a Magnetic Loop Antenna (MLA).

A Standalone 600Hz CW Audio Filter and Amplifier

A Standalone 600Hz CW Audio Filter and Amplifier

A Simple, Inexpensive, Homebrew Touch-Sensitive Twin-Paddle Iambic Key for CW.

A Simple, Inexpensive, Homebrew Touch-Sensitive Twin-Paddle Iambic Key for CW.

Another Touch-paddle and memory keyer project by Tony Breathnach, EI5EM .

Another Touch-paddle and memory keyer project by Tony Breathnach, EI5EM .

Homebrew Twin Iambic Touch-Paddles for Morse Code

Homebrew Twin Iambic Touch-Paddles for Morse Code

QSO on 17m with OK1DO using Xiegu G90

QSO on 17m with OK1DO using Xiegu G90

Raising a Dipole Antenna Feed-point with Rope and Pulley.

Raising a Dipole Antenna Feed-point with Rope and Pulley.

Variable Capacitor and Controller for Magnetic Loop Antenna

Variable Capacitor and Controller for Magnetic Loop Antenna

Memory Keyer using Veroboard and K16 chip.

Memory Keyer using Veroboard and K16 chip.

An Iambic Memory Keyer for My Xiegu G90.

An Iambic Memory Keyer for My Xiegu G90.

Ye Olde Hurdy Gurdy Museum of Vintage Radio media project by students of Coláiste Dhúlaigh

Ye Olde Hurdy Gurdy Museum of Vintage Radio media project by students of Coláiste Dhúlaigh

How to Wind Toroid Inductors

How to Wind Toroid Inductors

Elecraft AF1 Active Audio Filter Clone Homebrew Project

Elecraft AF1 Active Audio Filter Clone Homebrew Project

Elecraft K2 SSB Transmit Problem Resolved

Elecraft K2 SSB Transmit Problem Resolved

A Homebrew Combined Capacitive Touch-Paddle and Memory Keyer

A Homebrew Combined Capacitive Touch-Paddle and Memory Keyer

Preview of my K16 memory keyer build

Preview of my K16 memory keyer build

My Homebrew Cobweb Antenna V ZS6BKW on 18 MHZ (EI5EM)

My Homebrew Cobweb Antenna V ZS6BKW on 18 MHZ (EI5EM)

My Cobweb (single-wire) Antenna Build by Tony Breathnach EI5EM

My Cobweb (single-wire) Antenna Build by Tony Breathnach EI5EM

uBITX Really Finished This Time (I Swear) !

uBITX Really Finished This Time (I Swear) !

Ei5EM uBITX QSO with Sandra G0MCV

Ei5EM uBITX QSO with Sandra G0MCV

A Touch Key for my uBITX Transceiver

A Touch Key for my uBITX Transceiver

EI5EM /P QRP Portable on the Bull Island Dublin

EI5EM /P QRP Portable on the Bull Island Dublin

uBITX Finally Built, Modified and Finished

uBITX Finally Built, Modified and Finished

A Homebrew Audio Preamplifier Construction Project

A Homebrew Audio Preamplifier Construction Project

Active CW Flter for uBITX

Active CW Flter for uBITX

uBITX with K16 memory keyer added (EI5EM)

uBITX with K16 memory keyer added (EI5EM)

EI5EM QRP Portable in QSO with VE2WU

EI5EM QRP Portable in QSO with VE2WU

EI90IARU commemmorating 90 years since the founding of the IARU in 1925.

EI90IARU commemmorating 90 years since the founding of the IARU in 1925.

Wireless and the 1916 Rising in Ireland.

Wireless and the 1916 Rising in Ireland.

Spark Transmitter Demonstration by EI5EM

Spark Transmitter Demonstration by EI5EM

CQD first use of wireless in maritime emengency in 1909

CQD first use of wireless in maritime emengency in 1909

EI115MAR Special call Sign

EI115MAR Special call Sign

Space Shuttle Columbia in QSO with IRTS HQ station 1983

Space Shuttle Columbia in QSO with IRTS HQ station 1983

EI5EM's homebrew iambic memory keyer using the K16 chip by K1EL.

EI5EM's homebrew iambic memory keyer using the K16 chip by K1EL.

EI5EM's Combined QRP Resistive SWR Bridge and L-match ATU Project

EI5EM's Combined QRP Resistive SWR Bridge and L-match ATU Project

EI5EM uBITX Build Project

EI5EM uBITX Build Project

uBitx on 80

uBitx on 80

Homebrew touch paddles for CW (Morse Code).

Homebrew touch paddles for CW (Morse Code).

EI5EM's QCX QRP kit for 40m now built, boxed and working

EI5EM's QCX QRP kit for 40m now built, boxed and working

EI5EM's QCX 20m kit finally boxed.

EI5EM's QCX 20m kit finally boxed.

EI5EM's 20 and 40 metre QCX QRP kits From QRP Labs.

EI5EM's 20 and 40 metre QCX QRP kits From QRP Labs.

A homebrew 7 MHz single-conversion superhet receiver.

A homebrew 7 MHz single-conversion superhet receiver.

Hurdy Gurdy Museum of Vintage Radio (Howth, Co. Dublin, Ireland).

Hurdy Gurdy Museum of Vintage Radio (Howth, Co. Dublin, Ireland).

Tony Breathnach Live Stream

Tony Breathnach Live Stream

An All-in-one Portable QRP CW Station by EI5EM

An All-in-one Portable QRP CW Station by EI5EM

EI5EM twin touch paddles for CW

EI5EM twin touch paddles for CW

EI5EM MORSE DEMONSTRATION

EI5EM MORSE DEMONSTRATION