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GB3YT (YV,YX) (329)
10GHz EyalGal unit (328)
Spectrian 180W Amp *** (328)
6m Chirp Beacon Info (328)
146MHz RD06+RD15 Amp (328)
Chirp Radar Links (328)

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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:18:52
Temp:11.5C
Wind Speed:10mph
Wind Dir:157deg
Pressure:1031.9mB
Humidity:250%
Dew Point:41.5C
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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