9 band

462 links

GP Antenna for 1296 MHz - VK1AD
Quarter wave Ground Plane antenna for the 23 cm band, 1296 MHz.

[ Hits: 66 | Votes: 1 | Rating: 10 ]

Shortened 30m Dipole - DK1MI
This article describes the construction of a 9 50 m long dipole for the 30 ...

[ Hits: 126 | Votes: 1 | Rating: 1 ]

Enhancing Performance with a Cage Dipole for Six Meter Band - KB9RLW
Explore the design and testing of a cage dipole antenna for 6 meters Through innovative ...

[ Hits: 76 | Votes: 0 | Rating: 0 ]

End Fed Antenna for WARC Bands - PA3DWC
I used a FT 240 43 for much more power not needed but beter safe ...

[ Hits: 189 | Votes: 1 | Rating: 3 ]
8010 Enfed Antenna - F5NPV
With this antenna the coverage is 80 40 20 15 and 10 meter band without ...

[ Hits: 142 | Votes: 0 | Rating: 0 ]
TEFV Terminated End Fed Vee Antenna - VU3DXR
The Terminated End Fed Vee Antenna TEFV is a travelling wave antenna with constant current ...

[ Hits: 190 | Votes: 2 | Rating: 6.5 ]
Multi-Band End-Fed Antenna Design for Limited Space - PA3DWC
This document details the construction of a multi band end fed antenna suitable for situations ...

[ Hits: 77 | Votes: 0 | Rating: 0 ]

Open-Folded W8JK Antenna for HF - F5NPV
Originally designed by John Kraus W8JK in about 1940 this antenna has some interesting properties ...

[ Hits: 141 | Votes: 1 | Rating: 3 ]

3 Band Mono Loop Portable Quad - HB9DSP
Handmade drawing of a 3 bands single loop portable quad antenna used by the author ...

[ Hits: 134 | Votes: 0 | Rating: 0 ]
Portable Half-Square Antenna: - WB3GCK
The author explores a portable version of the half square antenna typically a single band ...

[ Hits: 126 | Votes: 0 | Rating: 0 ]
K4SWL Antenna Plus - K4SWL
This project details building a multi band antenna for park activations The author constructs a ...

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

Dual-Band X-Frame Shortwave RX Loop Antenna - KD6RF
A dual band X frame wire antenna made using 4 turns for response down to ...

[ Hits: 148 | Votes: 1 | Rating: 10 ]

Budget-Friendly QRP T-Tuner and SWR Bridge - KD6RF
In the pursuit of an affordable matching and SWR indication solution for the Pixie based ...

[ Hits: 83 | Votes: 0 | Rating: 0 ]

The Squid Pole Wire Antenna Re-visited - VK4ADC
The author explores enhancing the performance of a 7 meter fiberglass squid pole wire antenna ...

[ Hits: 92 | Votes: 0 | Rating: 0 ]

Improving Icom IC-7300 ADC Aliasing - F5LOL
The ICOM IC 7300 SDR radio has a very nice receiver for ham bands but ...

[ Hits: 211 | Votes: 2 | Rating: 5.5 ]

ICOM IC-R75 Review by N9EWO - N9EWO
Icom IC R75 tabletop HF communications receiver came onto the market back in 1999 and ...

[ Hits: 44 | Votes: 0 | Rating: 0 ]

International Radio Club of America - IRCA
Established in 1964 IRCA is a dedicated club focused on the pastime of tuning into ...

[ Hits: 29 | Votes: 0 | Rating: 0 ]

AI-Powered Radio Signal Cleanup: Battling QRM in Real Time - PA9X
Amateur radio enthusiast Jean Paul Suijs discusses combating manmade noise QRM in radio signals using ...

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

Measured Data For HF Ferrite Chokes - K9YC
FT 240 toroids measurements The data was measured using well calibrated HP instrumentation All plots ...

[ Hits: 40 | Votes: 0 | Rating: 0 ]

ARJAN-5 5 band SDR - PY2KLA
This project enhances Arjan te Marvelde s uSDR pico by integrating a waterfall display feature ...

[ Hits: 54 | Votes: 0 | Rating: 0 ]