dual band quad

Quadrafilar Helix Antenna - Quadrafilar Helix antenna for 137 Mhz

Inexpensive GPS mobile Antenna - An inexpensive external GPS antenna, for 1.5 GHz band for GPS receiver, If you operate APRS or just need an external antenna for your GPS receiver, here’s one that is easy to build yet offers surprisingly good performance in a compact size. Best of all, it uses commonly available components and materials.

A half slooper for 160 meters - Italian article includes picturer and plans to homebrew an half-slooper antenna for 160 meters band

I5TGC Antennas - Reduced size longwave antennas by Cesare Tagliabue I5TGC and his experience on 136 kHz band.

KQ6XA Antennas and towers  ^pop - Interesting antennas pojects such as Broadband/Multiband Dipole and Tower radiating antennas for 80m and 160m, HF antenna for the micro-light backpacking enthusiast

10M Vertical Antenna - A vertical antenna plan for 10 meters band made with copper pipe and PVC pipe

Italian VHF & up BandPlan - Italian vhf and up frequency allocations mantained by I5JRR

IARU HF band plan - IARU band plan comparagraph

Region 1 Bandplan - Bandplans for region 1 in pdf format by DARC

SV5BYR Mike - Six meters (6m) operation and satellites and two meters band

IZ8DWG Onofrio - Includes Amplifier, antenna tuner, quad, yagi, rotators project in italian

La bande magique, le 6 mĚtres... - Page consacr? Ë la bande magique qui est le 6 mĚtres plusieurs info vous attends... in French

CB Packet Radio Internet Gateway DNX274 - Internet packet radio gateway DNX274 for european citizen band with BBS, Convers-chat and many more, located in Germany

DXRING - Site for live internet DX and CB/Freeband chat, DX propagation tools, DSP software, Live DX chat and CB chat pages using Java client, radio review

Fractus Antennas - Fractal Antennas are a new generation of multiband antennas for wireless communications. Based on a new design concept, fractal technology.

Chameleon HF Multiband Antenna - The Chameleon V1 HF Multiband Antenna is a mobile antenna that can also be used as portable. Lightweight antenna system with 10 BANDS capability 6m, 10m, 12m, 15m, 17m, 20m, 30m, 40m, 60m & 80m.

Bushcomm Antennas - Dipole, broardband antennas s/s, portables, manufacturer based in Perth, Australia.

PC-Controlled 2m Receiver - This VHF receiver(118-173MHz) is fully controlled by PC(LPT port).Receiver presents a complete dual conversion.

UK Repeater Management Committee - Committee of the Radio Society of Great Britain responsible for the management of repeaters on the various frequency bands on which repeaters are permitted to operate.

Dave's Web Shop - C & Ku band satellite equipment - LNBs & LNBFs - MPEG-2 dvb receivers - dishes & More.

AirNav Selcal Decoder - AirNav Selcal Decoder enables you to decode in realtime Aviation HF Selcal transmissions. It only needs an HF airband receiver and your Sound Card. No special hardware needed. With AirNav Selcal Decoder you do not need any other hardware decoding system. Just your PC and the Sound Card.

WINRLC - Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.

SlowFeld - Win95 xperimental narrow band communication program that makes use of the Hellschreiber principle

How modify a CB linear to use in HF band  ^pop - how to modify a Cb linear amplifier to use in HAm HF band

How to obtain a dual voltage without a transformer - How to obtain a dual voltage without a transformer