HL2Setup question

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Peter Grace

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Mar 11, 2026, 12:57:12 AM (3 days ago) Mar 11
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Hello,

I received my Hermes-Lite 2 today and have been puttering with it for the last hour or two.  I noticed that I was getting power output from the PA that seemed to indicate 5W output, but the wattmeter response in deskhpsdr was showing 0.2 Watts.  While looking for possible causes for this, I stumbled upon the hl2setup program for setting transistor bias.  

I executed said program and the first transistor seemed to adjust properly, but the second transistor process fails with "Bias1 code 100 but low bias current < 10ma."  The power amp current never seemed to go above 7ma while it was sending the second transistor commands.

Now when I transmit, I'm barely sending any output (I assume because my transistors are now badly mismatched on settings?)

As a result, I have a few questions:

1) is there a source repository for the hl2setup app?  Is it possible I have an out of date version?  I downloaded the one from N2ADR's website.

2) is there a way to "reset to factory" for those settings?  Or a command I can send that matches the defaults that come from the factory?

3) If there is not, is there a way I can manually diagnose why transistor 2 is failing the hl2setup and adjust manually?  

Thanks in advance for any help the group might provide!
Pete - W3POG

Peter Grace

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Mar 12, 2026, 6:50:14 AM (yesterday) Mar 12
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As an update to this post -- when I was tightening down the nut on the heat spreader I must have managed to knock off both L34 and B106.  Talk about ham-fisted.  I have replacement components on order but this is almost certainly why transistor 2 is not responding to bias changes.
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