Control rack four bands eme. 3-23-70 and 200 cm , 2c39ba & sspa eme 23 cm power amplifiers

The dish was originally used as the transmitter antenna on a 1100 m long antenna measurement range from 1 ghz to 8 ghz. it was dismantled and transported to my qth

2 meter moon bounce or eme is my passion. i have worked 196 initials on 2 meter eme with 32 states, 36 countries and 146 grids confirmed

About amplifiers the mechanical description is very good and it is no problem to follow it, the housing and the special parts, which have to be made with a turning lathe, must be made by an experthe

The 4.9m dish has being used which is equivalent in gain to four yagis current feed is a two element quad in horizontal polarity

Competitive Eme antenna for 432 MHz

Power splitter/combiner 4-way for eme

The use of power splitters and combiners is widespread in amateur radio but the design of these circuits is often considered to be a black art

Links to information about two-way communications satellites carrying repeaters, transponders, and digipeaters can be found here

Amateur radio station and radio observatory Located at 51 14'53.1n 1 34'15.6w maidenhead locator io91ff In the village of redenham near andover hampshire southern engl

The moon an reflector reflecting only about 7% of the signal that hits it, the moon is capable of reflecting enough of a VHF or UHF signal back to earth to allow communication

This page provides a selection of links for general information about amateur Space Radio

On the following pages you can find pictures and descriptions of the different systems I have had running over the years

Array made by 4 x 9dhn6 antennas made by i0jxx, boom lenght 15 meter, extimated gain on free space 18.60 dbd 20.74 dbi extimated gain with ground gain 22.7 dbd 26.7 dbi

Earth-moon-earth eme communications have always been the ultimate in vhf/uhf dx long distance and weak signals

Eme-astronomy antenna 9.2 meter 30 foot

This service is to be used only for the purposes of discussing matters related to amateur radio eme via wsjt communications

At the present time, the best solution for yagis at 432MHz is to mechanically rotate the whole array on its polarization axi

In 1982, i started building my first 2.4m dish for eme, and with a lot of help fi made my first eme qso with k2uyh with 150 watts cw

Ham radio, microwave, eme, troposcatter

Earth-moon-earth communication also known as moonbounce is used as a passive reflector for vhf uhf and shf signals

This actuator itself is already over 10kg in weight when using the simplest way to mount it, it means the body of the actuator is clamped to the azimuth rotation pipe and the moveable part is connected to the lower horizontal pipe of the H-frame

To learn about the improvements in practice, i extended the upper part of a 2.8m prime focus dish

Homebrew 96 elements 144mhz skeleton slot array center: 24ft homebrew platter built in 1971-220, 432 and 1296MHz

Four 5 element dk7zb yagis on a compact stacking frame. this array is similar in weight to the long yagi, but easier to handle

You'll find several kinds of operational data needed for amateur radio moonbounce eme, earth moon earth

Explore the limits of the 2 meter band in all possible propagation: tropo, sporadic e-layer reflection, meteor scatter, aurora or even eme

Presentation of amateur radio traffic by satellite or terrestrial

All you need to build a simple VHF or UHF 1/4 wave groundplane antenna is a coax chassis connector and number 12 or larger wire scraps

Building equipment for various frequencies ong distance contacts, especially on vhf, uhf & shf

Pstrotator supports separate antenna rotator controllers for azimuth and elevation control. it can control two separate rotor interfaces

Satellites are fun and easy to work, here i am on lake erie working the a0-27 satellite running just 2 watts

432 MHz low noise preamplifier for moonbounce operation and weak signal re

This 50 ohm impedance antenna allows, when connected to a preamplifier and a 2.4GHz downconverter, to receive 2.4GHz transponder amateur radio satellites like ao-40

All about vhf dx and ham radio, daily updates

EME Earth-Moon-Earth means using the moon as a passive reflector of radio signals, In principle, it is possible for two stations anywhere on Earth to communicate with each other using the moon as a passive reflector provided, of course, that the moon is visible simultaneously in both places

If you are interested in giving eme a try on 6m, please read this page for a general understanding of eme

For satellites i am using antennas 2x5 ele. crossed quagi 2m,2x15 ele. cross-yagi

The current moon phase, set against a stunning backdrop of stars

The 9 elements allowed a gain of 12.4dbd 14.55 dbi and was enough to make qso with the big guns

jimmy has worked 2500 qso's on eme, in cw eme and some on ssb

One of the pleasure of working the amateur radio satellites is making contacts in a portable application and with qrp power, this requires a vhf/uhf handheld fm radio and a handheld 2-band antenna

Information on radio amateur vhf uhf and microwave systems

Activities concentrate on following frequencies: 432MHz, 1296MHz , 2320MHz and 10368MHz

The new dish replaced a previously used antenna prodelin 2.4m

Long path contacts instead! i mean really long path contacts like 800,000 km! many 6m stations or dxpeditions assume that they don't have a station capable of eme earth-moon-earth communications, or moonbounce