Hi together,
after a damage, I want to change my amp from DX-Patrol 12W Amp to a SG-Labs Modell. V2 has an Input of 500mW and the new V3 max 100mW. I look for the V3 Version but I don´t not know If I can reduce the DX-Patrol-Upconverter to abt 40mW out with the inside power adjustment.
Has anybody test the UpConverter V3, how deep you can reduce the output of the upconverter Version 3?
Regards
Thorsten
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Dear Thorsten,
Although this is a thread from 3 years old, i can enlighten you with some information. I blew up the PA from my DXpatrol QO-100 groundstation (old version) and was also thinking of replace it by a SG-Labs V3 one.
The output from the DXpatrol transverter board is about 25-60 mW (P38). That is a perfect powerlevel for the SG-lab PA (max 50mW input). I tried already in lose components at the workbench, and it gives 12 real watts to the antenna connector at 24 volts into the analyser.
The original DXpatrol claims 10-12 watts, but I have never seen that on the analyser. 7-8 watts at highest level. For the extra PTT/VOX pin on the SGlabs is no need to connect somewhere. If the readings at the front are matching, I have still to discover that, drill the extra holes in the SG-labs ans so on.
Maybe someone out there is searching for this modification and can now find a acknowledgement for doing it .
My extra 2 cents:
An extra thought is placing an extra Chinese small amplifier PCB and an extra PCB fingerfilter and push it to 20 watts. But I suppose that it then suffers from enough cooling in the standard box.
regards,
Jugo PA1AIS