A simple, cheap and easy to build 26 feet long vertical antenna that works DX on 20 – 10 meters including WARC Bands, it is designed for portability for field days, camping, or permanent installation, cost, and to achieve at least 1/2 wavelength on the WARC bands.
A home made, dirty and quick moxon antenna for 144 MHz made with PVC pipes.
A very essential j-pole antenna for 144 MHz. To adjust the SWR you will have to play with the 40mm distance between the coax feed and the braid inner conductor connection
The most basic form of repeater receives communication on one frequency and re-transmits at a different frequency. This is known as duplex communication. Repeaters are generally set up to operate with FM modulation on the amateur bands within the VHF (30 MHZ – 300 MHZ) and UHF frequencies (300 MHZ – 3 GHz). These are generally the frequencies used by handheld and mobile devices.
This WebSDR is located in Wismar in the north of Germany JO53RV and operated by Frank Goehling DO7AX
Yearly contest calendar compiled and manteined BY DARC with weekly and montly HF Contest calendar
Virtual Serial Ports Emulator for Windows. Virtual Serial Ports Emulator tool (and VSPE API) is free on 32 bit platform and can be used with no charge for any purpose. No registration or activation key is required.