50 mhz maps

2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.

The 2-Element-HB9CV-Beam  ^updated - The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV in the 1950ies. The Beam is a coax-feeded version of the ZL-Special Construction by DK7ZB for 2m, 6m and 10m

70MHz-Yagis - Various Yagi antennas for 70 Mhz band

Notes on building Yagis for 50 Mhz - Construction Details for 50MHz-Yagis in DK7ZB-Design

A Six element yagi antenna for the 50 MHz - Christoph petermann's df9cy six element yagi antenna for six meter band

50MHz Power Splitters - Splitting an antenna between two receivers or in use as the phasing harness in stacked antennas where there is a need to equally split the power from the transmitter between two antennas

Stacking for 50MHz - Summary of discussion on stacking antennas on six meter band

WB7PMP 4 and 7 eleemts yagi for 50 Mhz - Original drawing and design of a 4 and 7 elements yagi antenna for 50 Mhz

A two band halo for VHF Mobile - 50 and 144 Mhz with a single mobile antenna system

Magnetic loop antenna 10-30 MHz - magnetic loop for 10-30 MHz, using acetal rod former, aluminium foil conductor and copper-clad epoxy board capacitor

Simple Dipole Antenna for 2m - A simple portable dipole antenna for 144MHz

Quagi antenna for 144 Mhz - A modified W5UN Quagi design optimized for 144.050 Mhz

AMANDX Dipole - The longwire antenna is a very effective antenna for the listener who wants to cover all of the shortwave bands from 530 KHZ to 30 MHZ.a

Antenna Gain versus Height - Antenna gain for horizontal, vertical, and tilted orientation of a dipole for heights between 5 and 50 feet.

DK7ZB 144 mhz Yagis - High gain, good pattern and acceptable bandwidth. These aims can be realized with a radiation-resistance of 25-35Ohms, because the 28-Ohm-feedpoint is very simple to match.

KC9GNK 10 meter Beacon - Transmitting on 28.2836 MHz near Wisconsin Dells, Wisconsin

IOTA maps - QSL and Map gallery of IOTA islands all over the world

Quantum Antennas - 146/446 Mhz Dual Band, High Gain vertical Antenna

How to Work 6 Meter DX by W3EP - December 1998 QST World Above 50MHz copyright ARRL

6m technical docuemnts - A collection of scanned diagrams and designs, documents and modifications for 50 Mhz ham radio equipment

OK1DFC Zdenek Priority listing - EME traffic and 144 MHz up operations

Near-Real-Time F2-Layer Critical Frequency Map - This map can be used to determine the frequencies that will always be returned to the Earth. Transmitted frequencies higher than the indicated contours (which are given in MHz) may penetrate the ionosphere, resulting in lost power to space. The map shows the radio auroral zones as green bands near the northern and southern poles.

IPS - HF Systems MUF maps and prediction charts - These pages provide general propagation advice for HF communicators. Information available includes inferred global propagation conditions, real time HF fadeout coverage charts, regional ionospheric vertical MUF maps and Hourly Area Prediction charts for Astralia and Asia, Europe and North America

Yaesu VR-5000 control software - F1MDT freeware remote control for yaesu VR-5000 in french

The 50MHz Assistant - Preamp & Power Amp By Alkberto, I0XGR