logo
Most Viewed Last 7 Days
23cm ATV Filter (67)
IPTV (67)
Tropo May 2012 (66)
146MHz RD70HVF1 Amp (61)
117km Lightwave QSO! (61)
146MHz RD06+RD15 Amp (61)

Home



Cluster Activity

Spots per uW band today:
UK spotter or spotted only.

Solar data:
SFI
73
A-Index
12
K-Index
3
Exp.K
3
Sunspots
0
Activity
qui
GMF
qui
Aurora?
no

My Weather

Date:24/11/17 Time:00:04
Temp:2C
Wind Speed:7.5mph
Wind Dir:202deg
Pressure:1001.71mB
Humidity:118%
Dew Point:5.6C
UKHASnet
1.8M EME Dish Project

This is all there is to the dish and just some 12.5mm wire mesh for the reflector.

The Ribs are 15mm square tube.

I made a template up in wood first then formed them to shape by hand. I used a large mallet, holding the rib between two large wooden blocks and slowly formed the required shape. Surely someone else can come up with an easier method!

Centre



Ribs



First test on the mast for DX ATV!




Initial mount and testing photos using a helical feed:

First dish tests on EME



Mount 1



Mount 2







Here is an Excel sheet i made for calculating the shape of the dish ribs, i used it to create a template in wood when forming the rib shape with a hammer. It may not be 100% correct so watch out but seemed to work ok for me!!

Dish Shape Calculator













Last page added:16/08/17 15:45
M0DTS.co.uk