40 m

863 links - and 11 categories

Quad Antenna System by Pfeiffer Maltese ^pop
Excellent Quad Antenna projects for 40 20 17 12 10 and 6 meters band in ...

[ Hits: 39231 | Votes: 13 | Rating: 7.54 ]

40m & 80m portable wire antenna - G8ODE
G8ODE antenna project where the 40m Short 80m antenna was deployed as a sloping wire ...

[ Hits: 3624 | Votes: 6 | Rating: 2.17 ]
Vk5BR 20-40 Metre EH Antenna
VK5BR article on home brewing your own EH Antenna for 40 meters band

[ Hits: 1538 | Votes: 3 | Rating: 3 ]

Mag Loop for 40 m - ZL1BJQ
A page about a Magnetic loop antenna project for the 40 meters band includes nice ...

[ Hits: 2444 | Votes: 11 | Rating: 7 ]

Dipole for 40 Meters by K4VX
Here is a very simple and practical way to make a short but efficient 40 ...

[ Hits: 2706 | Votes: 1 | Rating: 10 ]

Handi-tenna 440 Beam Antenna - KG4IHJ
A 4 elements handitenna for 70 cm band This is my version of the K5OE ...

[ Hits: 1442 | Votes: 4 | Rating: 6 ]
The Versatile Vee Beam
An aerial that you can use on all eight High Frequency amateur bands 80 40 ...

[ Hits: 1726 | Votes: 3 | Rating: 10 ]

RFTec
Coax Cables and Connectors DC to 40 GHz RF cables test cable assemblies surge protectors ...

[ Hits: 281 | Votes: 0 | Rating: 0 ]

HF Multiband vertical antenna selection
Comparison chart between Cushcraft R8 Hy Gain AV640 Butternut HF6V Gap Titan and Eco 7 ...

[ Hits: 3339 | Votes: 5 | Rating: 4.8 ]

Moonraker 4 Antenna manual
English manual of the AV-140Moonraker 4 antenna

[ Hits: 3190 | Votes: 20 | Rating: 6.16 ]
Cushcraft R7 Manual - Cushcraft
Manual for R7, 10 12 15 16 20 30 40 meters band antenna

[ Hits: 8282 | Votes: 29 | Rating: 6.07 ]

Radio London Ltd - Mary Payne
This site run by Radio London Ltd is dedicated to Radio London Big L 1964 ...

[ Hits: 337 | Votes: 0 | Rating: 0 ]

HERALD P2P radio link design - Luigi Moreno
Sw tool to design point to point multi hop microwave links and networks 400MHz to ...

[ Hits: 577 | Votes: 5 | Rating: 6.8 ]

400 W RF Power amplifier for 144 MHz
G4DCV's 144MHz amplifier with a pair of GI-7b Russian triodes

[ Hits: 2572 | Votes: 3 | Rating: 5.33 ]

40 Meter QRP Transmitter
A simple 40 meter CW transmitter it sports full break in operation and 250 mW ...

[ Hits: 1934 | Votes: 1 | Rating: 2 ]
The Rock-Mite CW Kit
The Rock Mite is a 40m CW kit offered by Small Wonder Labs It features ...

[ Hits: 1158 | Votes: 0 | Rating: 0 ]
Homebrew 30m CW Transceiver
10.100 - 10.140 MHz 3 Watts output by 7n3wvm

[ Hits: 927 | Votes: 0 | Rating: 0 ]
40 QRP CW Transceiver
Amateur Radio (G3TXQ) - Malta 40 QRP CW Transceiver

[ Hits: 1801 | Votes: 1 | Rating: 1 ]

Receiver Dynamic Range
Receiver dynamic range is the ability of a receiver to receive a weak signal without ...

[ Hits: 502 | Votes: 2 | Rating: 1 ]
40 m Band Direct Conversion Receiver
Practical and usable direct conversion receiver for the 40 m CW band

[ Hits: 1503 | Votes: 2 | Rating: 6 ]