The Smell of Molten Projects in the Morning

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GPS+Voice Interface for Wouxun KG-UV3D: PCB in a Box!

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It always feels good when the parts fit together, even if they don’t actually do anything yet…

Bare PCB in Wouxun HT battery case
Bare PCB in Wouxun HT battery case

That’s the bare PCB in the first-pass 3D-printed battery case adapter, both of which need quite a bit more work. In particular, the case desperately needs some sort of latch to hold the yet-to-be-built contacts against the HT’s battery terminals.

Amazingly, all the holes lined up spot on, although I think the lower battery contact could move half a millimeter closer to the base of the radio. The battery case contacts are large enough to work as-is and, for what it’s worth, the Wouxun battery cases seem to differ slightly among themselves, too.

The PCB itself came out about as well as any homebrew PCB I’ve ever made, after getting the Logitech Joggy Thing working again to line the Sherline up for hole drilling:

Wouxun HT GPS-Audio PCB - copper
Wouxun HT GPS-Audio PCB – copper

The circuit has provision for pairs of SMD caps on all the inputs, with which I hope to squash RFI from both the VHF and UHF amateur bands by choosing their self-resonant frequencies appropriately.

Comments

6 responses to “GPS+Voice Interface for Wouxun KG-UV3D: PCB in a Box!”

  1. Belt Sander Disk Tightening « The Smell of Molten Projects in the Morning Avatar
    Belt Sander Disk Tightening « The Smell of Molten Projects in the Morning

    […] Smell of Molten Projects in the Morning « GPS+Voice Interface for Wouxun KG-UV3D: PCB in a Box! Harbor Freight Digital Thickness Gauge: Lubrication Thereof […]

  2. Capacitor Self-resonance: The Madness « The Smell of Molten Projects in the Morning Avatar
    Capacitor Self-resonance: The Madness « The Smell of Molten Projects in the Morning

    […] three caps producing that trace look like this on the brassboard PCB for the Wouxun GPS+voice interface,  with spectrum analyzer input & output through RG-174 coax with 22 Ω and 470 Ω SMD […]

  3. Power Supply Banana Jack Misfit « The Smell of Molten Projects in the Morning Avatar
    Power Supply Banana Jack Misfit « The Smell of Molten Projects in the Morning

    […] bitter end in my cable tangle. Turns out I needed a power cord to bring up the brassboard of the Wouxun GPS interface, so I soldered it up, went to plug it in, and … the Tek plugs didn’t fit the plated […]

  4. GPS+Voice Interface for Wouxun KG-UV3D: Brassboard « The Smell of Molten Projects in the Morning Avatar
    GPS+Voice Interface for Wouxun KG-UV3D: Brassboard « The Smell of Molten Projects in the Morning

    […] next step: conjure up a box. That shape has nothing to recommend it, so I’m doodling an extrusion-like shell with endcaps that should […]

  5. KG-UV3D GPS+Voice Interface: Battery Case Latch « The Smell of Molten Projects in the Morning Avatar
    KG-UV3D GPS+Voice Interface: Battery Case Latch « The Smell of Molten Projects in the Morning

    […] I can’t figure out how to duplicate it for a case to house the GPS+Voice interface circuitry. That box had the dual disadvantages of being plug-ugly and not locking to the radio, but it did help […]

  6. KG-UV3D GPS+Voice: Quasi-Extruded Case « The Smell of Molten Projects in the Morning Avatar
    KG-UV3D GPS+Voice: Quasi-Extruded Case « The Smell of Molten Projects in the Morning

    […] the previous kludge, this GPS interface case resembles an extrusion with the PCBs sliding into place, held by setscrews […]