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Cluster Activity

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

Solar data:
SFI
4
A-Index
3
K-Index
40
Exp.K
qui
Sunspots
qui
Activity
no
GMF
Aurora?
M0DTS

My Weather

ArrayDate:24/06/22 Time:05:22
Temp:13C
Wind Speed:0mph
Wind Dir:45deg
Pressure:1002.06mB
Humidity:70%
Dew Point:7C
UKHASnet

After some chat with Charles i've made a plot of power curve of the combined RD06 and RD15 device...

gnuradio was used to ramp the output amplitude of a cw signal from the DATV Express.
A coupled output from the RD15 amp stage was fed into an rtlsdr dongle, the amplitude measured and plotted, the result is below.
The power is swept from very low o/p up to 9Watts.

Amplifier plot




In GNUradio right or wrong i've used the function probe to feed back the sawtooth signal from a signal source to a variable which is the value of the multiply const block.

GNURadio power sweep setup




















Last page added:25/03/00 18:32
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