G4HUP DFS Issue 2 Errata and Updated Information
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Issue 2 PCB problems

Problem
Location
Affected Circuit
Resolution
Implementation Versions Affected
No Vcc on IC201
short trace missing between +8v via and R201/C208/9
IC201
Link with short wire from via to R201
All implementations - 8v Vcc to MAR-6 in VHF multiplier amplifier chain

Issue 2 PCB Modifications

Purpose
Location
Status
Instructions
Implementation Versions Affected
Performance (Spurious outputs) improved by fitting Diplexer in some cases
Sheet 6
Optional Modification
Make mods as per diplexer
Any version with a wide spacing between the VHF multiplier frequency and the MF signal

Page created 18 May 2008

Page last updated 4 Oct 2008