dual wound

Loop antenna for 10m and 15 m - Dual band rectangular loop antenna for 15m and 10m

Dual Band Wire Beam 12 and 17 m - The Dual-Band Wire Beam was inspired by L.B. Cebik's (W4RNL) article The Elusive Moxon Nest. Fiberglass tubing spreaders, Flexweave elements, an aluminum hub, and two die-cast aluminum flanges combine to provide a 12/17m Moxon nest with one 50 ohm feed.

Double Quad Antenna - 435 MHz double quad antenna by F5WN

4:1 Dual ferrite bead balun - The Dual-Ferrite-Bead 4:1 HF Balun, some preliminary measurements

The Dual-Ferrite-Bead 4:1 HF Balun - A pdf document about the dual ferrite bead 4:1 balun, some preliminary measurements

A 4:1 Air-wound Balun - 40mm diameter grey PVC pipe with a length of 9.5cm

A 4:1 Air-wound Balun - Homebrew a 4 to 1 air wound balun

Air Wound 4:1 Balun - Do you want to build a high grade, very useable 4:1 Balun for less than a fiver, if the answer is YES, then this project is for you.

Winding an Effective 1:1 Coax Balun - Guidelines to wound a balun by WA2SRQ

Dual Band Quad Antenna - 4elements 50Mhz and 70Mhz dual band OWA Quad Antenna with a 2.7 metre length boom by G0KSC

UHF VHF Folded Dipole - Dual band 2 m and 70 cm folded colinear aerial array project by G2BCX

Duo band antenna for 145/435 MHz - Dual band vhf uhf dipole antenna by DL7JV

Dual Band Half-Wave Flower Pot Antenna - VHF UHF half wave flower pot antenna project by VK2ZOI

Dual Band Flower Pot antenna - Experimental Dual Band High Gain Flower Pot Antenna

Ladder Feeder Dual Band Antenna - 450Ω Ladder Feeder Dual Band Antenna

70cms and 2m Dual Band Aerial - A prototype antenna built using a single approx. 2.3 meter length of 4mm stainless steel wire

The Basingstoke Amateur Radio Club - We are small club of individuals who like to explore and have fun with the many aspects of radio communication and technology utilising radio.

Bristol ARC TN/VA BARC - The Bristol Amateur Radio Club's purpose is to: Facilitate the exchange of information and general cooperation between members to promote amateur radio knowledge, fraternalism and individual operating efficiency

MorseFusion: The novel way to learn Morse code. - Learn the new, natural way: Have a novel of your choice spelled out in English letter by letter. Letters and numbers gradually get replaced by Morse code.

Baofeng UV-3R Yahoo Group - This group is for support and discussion of the Baofeng UV-3R micro dual band VHF/UHF radio.

UTC World Clock - Dual display shows UTC or local time on top and lower display shows time in another time zone or country selected from a list.

DRAKE TR7 Downloads - Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS

A CW QRP Transceiver for 20 m band - The little QRP presented in this article may be built in a gradual manner, it is divided in two main modules (plus VFO), you may also complete only a single part (RX or TX module).

The Duet CW RTX - Design for a dual-band CW transceiver using the AD9834 Direct Digital Synthesizer

Dual Radio Computer Interface - Schematic of a simple interface to connect a pc to a FT-1000 Mk5 Field and FT-817 transceivers.