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Cluster Activity

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

Solar data:
SFI
68
A-Index
21
K-Index
4
Exp.K
0
Sunspots
0
Activity
qui
GMF
act
Aurora?
no

My Weather

Date:23/02/18 Time:18:40
Temp:3C
Wind Speed:12.5mph
Wind Dir:112deg
Pressure:1021.6mB
Humidity:118%
Dew Point:6.6C
UKHASnet
146MHz Amp Tests

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:07/01/18 10:15
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