USA

342 links - and 7 categories

QRP HF Loop Antenna - IZ0HCC
This is an uncommon loop antenna hombrewed without the small feeding loop With small spare ...

[ Hits: 162 | Votes: 1 | Rating: 10 ]
Portable magnetic loop antenna - VK3IL
A portable loop antenna made with a 3 meter loop resonates with the chosen capacitor ...

[ Hits: 167 | Votes: 2 | Rating: 9 ]
Multi-Band 4 Foot Magnetic Loop with Gamma Match - AA1IK
This antenna works on 17 20 and 30 meters with the best bandwidth on 20 ...

[ Hits: 141 | Votes: 2 | Rating: 10 ]

The 2BD beam antenna for 20 meters - EA2BD
A light portable 2 element Delta beam antenna for 14 MHz It is basically a ...

[ Hits: 186 | Votes: 1 | Rating: 8 ]

Zeppelin aerials - OK1MMN
Zeppelin Antenna notes historical references and a description of the classic Zeppelin antenna how current ...

[ Hits: 166 | Votes: 3 | Rating: 7 ]

Northern Utah WebSDR USA - sdrutah.org
This online WebSDR is located near Corinne Utah has coverage on all U S amateur ...

[ Hits: 519 | Votes: 3 | Rating: 10 ]

BG2FX Amateur Radios - BG2FX
Yu produces miniaturized amateur radio transceivers for portable usage Yu designed and sold the FX ...

[ Hits: 122 | Votes: 1 | Rating: 1 ]

Amateur Radio License Map - HamInfo
Use this map to find amateur radio license holders in the USA.

[ Hits: 311 | Votes: 2 | Rating: 5.5 ]

Aircraft Scatter on 6 Meter FT8 - VE3VN
Aircraft scatter is easily seen on the spectrogram window of digital communication apps when you ...

[ Hits: 180 | Votes: 2 | Rating: 9.5 ]

USA Amateur Radio Repeaters - IU3BLA
USA Amateur Radio Repeaters Directory, 2m and 70cm bands.

[ Hits: 96 | Votes: 0 | Rating: 0 ]

Calculation of the Maximum Usable Frequency - IEEE
This paper presents the method of calculating the maximum usable frequency MUF and field strength ...

[ Hits: 244 | Votes: 2 | Rating: 5.5 ]

HF communication prediction tools - BOM
Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to ...

[ Hits: 169 | Votes: 0 | Rating: 0 ]

What to Expect at Solar Minimum - K9LA
Article on operating aids and band usage during solar minimun periods Author tries to explain ...

[ Hits: 230 | Votes: 1 | Rating: 1 ]

The KA7OEI FT-817 Battery Types - KA7OEI
Operating the FT 817 from various types of batteries such as Alkaline Cells NiCd or ...

[ Hits: 95 | Votes: 0 | Rating: 0 ]

KB3IFH QSL Cards - KB3IFH
KB3IFH Full Color quality QSL Eyeball cards Free custom design imaging scanning based in Hampstead ...

[ Hits: 120 | Votes: 1 | Rating: 10 ]

FT-817 CAT library - CO7WT
Serial CAT interface to control a Yaesu FT 817 transceiver Inspired in the James Buck ...

[ Hits: 121 | Votes: 0 | Rating: 0 ]

AI Projections for Ham Radio Modes in 2023-2025 - G7VJR
In an innovative analysis Michael G7VJR employs NeuralProphet to predict ham radio modes usage trends ...

[ Hits: 55 | Votes: 0 | Rating: 0 ]

50 MHz 300W Power Amplifier - VK3NX
This project addresses the need for a 50 MHz Amplifier providing substantial power for Australian ...

[ Hits: 71 | Votes: 0 | Rating: 0 ]

Computer headset adapted for Ham Radio Usage - IZ7ATH
Adapting a common PC earphone with microphone to connect to a transceiver via a homemade ...

[ Hits: 192 | Votes: 0 | Rating: 0 ]

A Simple Hybrid Software Defined Radio - AA8C
This Hybrid SDR is a combination of a current technology analog radio techniques used with ...

[ Hits: 115 | Votes: 0 | Rating: 0 ]