dual band

Dualband-Beam 12/17 m - The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m by DK7ZB

Loop Antenna for 6m  ^pop - Indoor loop antenna for six meters band, project by Colen Harlow, G8BTK

Homemade Carolina Windom antenna - Multiband wire antenna by M0UKD

The W2PM Mini Diamond Receiving Flag - This description is taken from the Pete's W2PM posting into Topband reflector.

1270Mhz Yagi Antenna - Build your own antenna for the 23cm band ( 1250Mhz - 1280Mc ) using some aluminium and this simple design.

Mailbox DBO274 - Citizen Band mailbox DBO274 in Germany with HTTP/telnet-access

Tonga DXpedition Award - To gain Tonga DXpedition Award it is necessary to have QSL confirmed contacts with two amateur radio expeditions from Tonga (A35), on two bands, with two diffrent modes. Available also to SWLs

SSTV Nets and Frequencies - SSTV ONLY nets on ham radio bands

Jonathan's QSL Card Page - Mediumwave, shortwave, and amateur bands QSL cards collection

FCC Bandplan  ^{updated  pop} - FCC Frequency Bandplan even if outdated is a good starting point to have a basic frequency list

RSGB HF Data Band Plans - The following frequencies are assigned to datacommunications in the HF bands within the UK By RSGB data communications committee information.

The Mud Duck SiteRing - A SiteRing for CB/Freeband/Ham radio operators.

RM Italy  ^pop - RM is an Italian company operating in the radio communication field since 1974, main products are: HF-CB-VHF-UHF-Dual Band Amplifier, Power Supply, DC-DC Converters Antennas and more

MARS Antennas - MARS, Israel's Antenna and RF System manufacturer, flat antennas for cellular, military broadband, multiband MF high power antenna

T.G.M. Communications - MQ-1 four band HF beams 20,15,10,6 meters MQ-2 six band HF beams 20,17,15,12,10,6 meters, beam antennas and Hybrid Quad antennas

Adaptive Broadband Corporation - Point-to-point fixed and mobile microwave radios for television and other broadcast requirements

NSI-N Systems, Inc. - Triple-band (2-2.5 GHz, 6.5-7 GHz, 12-13 GHz) central receive systems with automatic airborne tracking.

SSTV Frequency list - Where to look on the Bands for SSTV

PSK31 explained - PSK31 bandwidth explained and related links by w5bbr

Online DX Logbook Priority listing - The latest tropical band and shortwave loggings. The site is updated at least once a day with new loggings

BBA-C1 Amplifier Card - This versatile broadband amplifier is used in several DX Lab projects.

70cm GS-23b Amplifier - 1500 watts amplifier for 70 cm band using GS23B /4CX1600U SVETLANA by LZ2US

Frequency and VFO - How to keep from being out of band

Wide Band FM Tranceiver - 70 and 23 cm wide band FM tranceiver

High-speed packet 23cm - 23 cm wide-band transceiver for high-speed data or audio by PE1JPD