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GB3YT (YV,YX) (329)
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Cluster Activity

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

Solar data:
SFI
71
A-Index
11
K-Index
0
Exp.K
0
Sunspots
0
Activity
qui
GMF
act
Aurora?
no

My Weather

ArrayDate:22/02/19 Time:18:47
Temp:11.5C
Wind Speed:5mph
Wind Dir:157deg
Pressure:1031.94mB
Humidity:250%
Dew Point:41.5C
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
















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