40 dipole

10 Meter Vertical Dipole - Homebrew a vertical dipole for 28 Mhz by N2UHC

The Battle Creek Special Antenna - This antenna is often mentioned as secret weapon for LF bands (160, 80 & 40 m) operating at many DXpeditions. It is not commercially available but may be loaned to the expedition staff. It was brought to Ham Radio scene by George Guerin, K8GG, Charlie Dewey, W0CD and George Taft, W8UVZ

Inexpensive 17-Meter Vertical - A low cost, low profile DX antenna fro 17 Meters

VHF J Pole for 146 Mhz - KF4SCI project for a VHF UHF jpole, working on 220 and 440 Mhz

Coax cable dipole antenna for 10 Mhz - Coaxial Cable Dipole for 30 meters band by I2NDT with detailed pictures of his dipole antenna setup.

A 40 meters DDRR Antenna - A direct drive ring radiator antenna for the 40 meters band by W6WYQ QST article.

W3HH antenna for 40 meters - Pictures and plan to build a wire W3HH antenna for 7 Mhz.

440 Mhz J-Pole Antenna plans - Here is a 70cm (440 Mhz) J-Pole antenna that is inexpensive, and easy to build. Author use 1/2 inch copper pipe, and the associated fittings necessary. The dimensions aren’t typical however, this is what it took to get its SWR low.

40-80 Dipole antenna - A 40 80 dipole antenna design by WA6ESC PDF File

A wideband 80 meter dipole  ^pop - This worthy antenna is so simple and inexpensive you will want more than one by N6LF

Hex Array - 80/40 Meter Vertical - This page describes a homebrew 80/40 meter trap vertical antenna. Includes an interesting antenna raising system that allow easy setup and tuning.

CobWebb multiband folded dipole - It is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10M & 20M, the antenna is also resonant on 6M

Build a multiband dipole - A nicely documented procedure to build a multiband dipole spending $30 in material and half an hour in assembling by Andrew Daniel - KI4QFY

Rotatable Dipole for 40m-6m - This article describes a simple, inexpensive, dipole antenna that will rival the performance of a ten-meter beam.

160 m Balanced Coaxial Receiving Loop Antenna - KN4LF explanation of the 160 meter balanced coaxial receiving loop antenna, easily adaptable to a 40 and 80 meters band

The ZS6BKW Multiband HF Antenna - Antenna design from ZS6BKW (G0GSF), similar to the G5RV, but it actually resonates on five bands It’s only 90 ft long 27.51 m, with a 40 ft 12.2 m downlead

KH6 - Hawaii Sea Q Maui - Hawaii, maui, Operating only as a ham radio station rental. Located in a private home, accommodating only ham operators. Two towers, two tribanders, one 40 2 el, one WARC. A FT1000MP, TS-940S, FT100, HF only no 6 mtrs No linear operations.

Loma Pioneer Repeater Club - LPRC - The loma pioneer repeater club - lprc provides 2 meter vhf and 440 uhf amateur radio and emergency communication for the san francisco and monterey bay areas from a repeater on mt loma prieta. aprs digipeater available.

Calnet Repeater Group - Calnet a multi repeater amateur radio system serving most of California and parts of Nevada. The Calnet system consists of numerous fulltime linked 440 MHz repeaters connecting San Diego to San Francisco and Lake Tahoe.

Portland Amateur Radio Club - One of the Portland ,Oregon metro area's oldest club, all are welcome, if you are in the area, our club repeater is on 146.840 mhz

AA4XX QRSS Beacon - 30 meter QRSS beacon of AA4XX

TLDetails - Transmission Line Details. This utility program shows the impedance and SWR at both ends of a transmission line and the details of power loss in the line. It includes characteristics for over 40 built-in line types. You can modify these values to see how small changes affect the results or to specify custom lines. All program inputs may be changed directly or you can use spin buttons to make the changes. If you are using a moderately fast computer you can hold down a spinner and "watch the movie" on the charts as the results are recomputed. By AC6LA

Mini logbook - A neat free little tool to log your contacts. It automatically looks up previous contacts with recent call. Select text in MRP40 Rx- window. Auto insert that text into MiniLog via double click. By Polar Electric

Homebrew HF Amp with 3CX3000F7 - Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC. The amp design was for 160 80 40 and 20 meters

G0UPL 30m QRSS Junkbox Beacon - This simple 30m QRSS beacon is built entirely out of junkbox parts, the only component purchased specifically for this project was the 10,140kHz crystal.