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OpticalDx



Cluster Activity

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

Solar data:
SFI
67
A-Index
10
K-Index
2
Exp.K
3
Sunspots
0
Activity
qui
GMF
qui
Aurora?
no

My Weather

ArrayDate:19/06/19 Time:21:10
Temp:15.5C
Wind Speed:2.5mph
Wind Dir:202deg
Pressure:1005.89mB
Humidity:250%
Dew Point:45.5C
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