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Cluster Activity

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

Solar data:
SFI
72
A-Index
12
K-Index
1
Exp.K
2
Sunspots
0
Activity
qui
GMF
qui
Aurora?
no

My Weather

Date:14/12/17 Time:15:06
Temp:5.5C
Wind Speed:7.5mph
Wind Dir:180deg
Pressure:979.84mB
Humidity:118%
Dew Point:9.1C
UKHASnet
22-25GHz Amplifier

Got this from another Amateur but no info.....

Seems to be power amplifier, 3 stages to bias up, Negative bias required, Drains are 1.6,1.4,1.2Ohm to ground respectively.
Anyone got an idea on what current level it should be biased up to?!

SMA input and WG20 output.

Amp inside



I made a bias board and tested to ~100mW output, no more information found but the current draw was much more than the associated output power!!










Last page added:16/08/17 15:45
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