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Chirp Sounders (70)
Chirp Tx With Red Pitaya - 3 (56)
13cm 200mW Comtech info (56)
Chirp Tx with Red Pitaya - 1 (56)
436MHz DATV Up-Converter (56)
22-25GHz Amplifier (56)


Cluster Activity

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

Solar data:
SFI
71
A-Index
6
K-Index
1
Exp.K
1
Sunspots
12
Activity
qui
GMF
qui
Aurora?
no

My Weather

Date:18/01/18 Time:00:03
Temp:3C
Wind Speed:15mph
Wind Dir:135deg
Pressure:988.02mB
Humidity:118%
Dew Point:6.6C
UKHASnet
Material absorbtion tests

Today I've been trying to find a suitable outdoor enclosure for the GM Tube,pcb and UKHASnet node bits...

I think i've figured out that most of the radiation emitted from a piece of Uranium glazed pottery (off ebay!) is beta particles...
Beta absorbers seem to be a lot of plastics, ABS boxes absorb a lot, ceramic tiles absorb most, if not all of the particles.
The clear plastic from 50pk of writable cd's absorbs a little but not too bad.

Next test is to try some fiberglass....











Last page added:07/01/18 10:15
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