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Cluster Activity

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

Solar data:
SFI
1
A-Index
0
K-Index
67
Exp.K
eru
Sunspots
maj
Activity
no
GMF
Aurora?
M0DTS

My Weather

ArrayDate:27/09/21 Time:19:17
Temp:10.5C
Wind Speed:17.5mph
Wind Dir:180deg
Pressure:1008.41mB
Humidity:67%
Dew Point:3.9C
UKHASnet

I modified the German designed Laser TX to drive a 1W Golden Dragon LED.

Managed to receive my own transmission at a portable site 11km away using the German designed Photodiode Rx at 20MHz, results were not that good, sync to weak lock of the video signal.

This time i used a photomultiplier tube as the receiver and it worked much better!
The TX alignment was not optimised in beam heading because i set this before going /p!

Tx 20MHz carrier FM ATV to 1W LED and 30cm Fresnel lens.
Rx Photomultiplier tube into into a 20 > 70MHz converter, then into a Zeta 1000L sat receiver.


Optical ATV with LEDTx












Last page added:25/03/00 18:32
M0DTS.co.uk