30 m band

188 links - and 1 categories

SAFARI 40-30m vertical Antenna - G3RWF
Roach pole vertical antenna for 40 and 30 meters band featuring good performance on short ...

[ Hits: 316 | Votes: 0 | Rating: 0 ]
30m Half -Size Rotary Dipole - G3YEU
A rotary dipole antenna for 30 meters band Each arm is about 12 5 ft ...

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

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 ]

End fed half wave antenna 40/30/20m - TK5EP
For my SOTA activities i recently bought a QRP transceiver QRP SW 3B which is ...

[ Hits: 170 | Votes: 0 | Rating: 0 ]

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 ]

Enhancing Performance with W8JK/MOXON Antenna Variant - F5NPV
F5NPV introduces a variant of the W8JK antenna design employing the MOXON principle With extended ...

[ Hits: 185 | 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: 239 | Votes: 1 | Rating: 7 ]
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 ]

The M0CVO HW-42HP OCF Antenna - M0CVO
A multi band off centre fed dipole designed to operate on all bands from 40m ...

[ Hits: 275 | Votes: 0 | Rating: 0 ]

Active 3-30 MHz Hula-Loop Antenna for Shortwave - Charles Wenzel
This active antenna for the shortwave band provides surprising performance even indoors As the name ...

[ Hits: 161 | Votes: 1 | Rating: 10 ]

Spiral Antenna for SDR - RTLSDR
Designing and Testing a PCB Wideband Spiral Antenna The 800 MHz and 300 MHz spiral ...

[ Hits: 91 | Votes: 0 | Rating: 0 ]

A simple Attic Antenna for HF bands - Eugene Viktorovich
This simple antenna was installed on the attic Antenna was matched with help an Automatic ...

[ Hits: 319 | Votes: 7 | Rating: 6 ]

20-30m Vertical Antenna - F6GLZ
Homebrew project for a vertical antenna with a coaxial cable trap that works on 20 ...

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

Build a W3DZZ Antenna - N2LNO
The purpose of this construction is to enable the realization of an HF antenna called ...

[ Hits: 220 | Votes: 1 | Rating: 1 ]

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

[ Hits: 212 | 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 ]

DXSPOTS - f6gqk
DXSPOTS is a Telnet connection program It allows radio amateurs with a lot of DX ...

[ Hits: 150 | Votes: 0 | Rating: 0 ]

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 ]

20m 30m 40m Bandpass Filters - AB2EW
Homemade LC Bandpass Filters for 20M 30M 40M In multi station environments like special events ...

[ Hits: 388 | Votes: 1 | Rating: 10 ]