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408 links - and 1 categories

VHF Baluns: Fact and Fancy - GM3SEK
Our ideas about HF baluns have changed dramatically in recent years The focus today is ...

[ Hits: 283 | Votes: 0 | Rating: 0 ]

Improve your Antennas for Low Solar Activity - CTU
How to improve your transmitting antennas for very low solar activity periods vertically polarized 160 ...

[ Hits: 425 | Votes: 0 | Rating: 0 ]

Semi-automatic antenna tuner project - DK7IH
Thsi article describes a microcontroller driven semi automatic antenna tuner capable of handling power levels ...

[ Hits: 291 | Votes: 0 | Rating: 0 ]

FSK vs AFSK - IK3QAR
In the field of RTTY transmissions with audio boards you can transmit either in FSK ...

[ Hits: 156 | Votes: 0 | Rating: 0 ]

FT8 and splatter and the ugliness of ALC - g4dbn
A guide to properly use FT8 ALC and power when transmitting in FT8 Mode Incorrect ...

[ Hits: 393 | Votes: 1 | Rating: 1 ]

PSK: How to Assure a Clean Signal - N4SER
Due to the nature of PSK it is imperative that you maintain a very clean ...

[ Hits: 137 | Votes: 0 | Rating: 0 ]

Ham Radio: Using Repeaters - ylab
The most basic form of repeater receives communication on one frequency and re transmits at ...

[ Hits: 92 | Votes: 1 | Rating: 8 ]

Decoding Russian Meteor-M2 satellite images in real time - phasenoise
The Meteor M N2 is a polar orbiting Russian weather satellite that was launched on ...

[ Hits: 200 | Votes: 0 | Rating: 0 ]

What is System Fusion - YAESU
System Fusion is Yaesu s implementation of Digital Amateur Radio utilizing C4FM 4 level FSK ...

[ Hits: 112 | Votes: 0 | Rating: 0 ]

Audio Repeater - Muzychenko
Audio Repeater is a windows application tha allows you to transfer transmit sounds from an ...

[ Hits: 521 | Votes: 1 | Rating: 10 ]

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

[ Hits: 325 | Votes: 3 | Rating: 8 ]

An Audio Selection Panel in the Shack - PE2ER
On this page you will find one of my designs An Audio Selection Panel ASP ...

[ Hits: 139 | Votes: 2 | Rating: 7.5 ]

The G4AON SSB Transmitter - G4AON
This transmitter covers the 160 80 40 and 20 metre bands and provides both SSB ...

[ Hits: 181 | Votes: 2 | Rating: 9.5 ]

A Three-Band One-Tube Novice Transmitter - KC9KEP
A homebrew radio transmitter project based and inspired by the original 30 Watts input on ...

[ Hits: 345 | Votes: 2 | Rating: 10 ]

Preventing CW key clicks - stackexchange
Key clicks are generally undesired clicks or thumps generated by a CW transmitter as the ...

[ Hits: 93 | Votes: 0 | Rating: 0 ]

The Micro20 III Pocket Size SSB RTX for 20m - DK7IH
DK7IH QRP transceiver for 14 MHz This small and compact home made transceiver with a ...

[ Hits: 252 | Votes: 3 | Rating: 10 ]
136 kHz QRP Transmitter - GW4ALG
The Marathon is a low power transmitter for 136 kHz

[ Hits: 187 | Votes: 1 | Rating: 6 ]
Gimme Five - QRP SSB Transceiver - DK7IH
Gimme Five reloaded a compact 5 band QRP SSB transceiver in SMD technology This unit ...

[ Hits: 285 | Votes: 1 | Rating: 10 ]

QRP 20m Transmitter - Electronics DIY
The 1 watt 20 meter QRP transmitter with VXO This is a nice QRP transmitter ...

[ Hits: 151 | Votes: 0 | Rating: 0 ]
17 meter QRP Transmitter - KB9II
1 watt 17 meter cw transmitter that was originally done about 10 years ago as ...

[ Hits: 122 | Votes: 0 | Rating: 0 ]