This is true but I wouldn't rely on the filter labels having been
consistently applied. I would look at the filter pins and see which pins
are grounded to the case and orient the filter so the grounded pins go into
the grounded socket pins on the Orion II PCB.
73, Barry N1EU
On Fri, Dec 30, 2016 at 11:30 AM, Jeff (W4DD) <w4dd09@gmail.com> wrote:
>
>
> Likely many of the Orion 2 owners know this already, but thought it
> worthwhile to pass it on.
>
>
>
> There are 2 ways to install Orion filters. On the O1, it doesn't matter
> since the signal pins are on opposite corners.
>
>
>
> For the O2, it does matter, since the signal pins are on the same side of
> the filter. If installed the wrong way, the signal just passes through on
> the metal shell of the filter, but the filter does nothing. The filter
> should be installed so you can read the part number on the filter from the
> back of the radio. I recently worked on a O2 that had all 6 filters
> installed so that the part number could be read from the front of the
> radio.
> Looks nice, but none of the filters actually worked. They just passed the
> full BW through. Might be worthwhile to check your O2 next time you have
> the cover off.
>
>
>
> Another way to check is listen to the audio as each filter is engaged while
> reducing the BW. You should be able to hear a slight change as you pass
> the
> filter engage point, although I prefer the visual check.
>
>
>
> And of course, they need to be enabled in software.
>
>
>
>
>
>
>
> Jeff, W4DD
>
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