On 2/24/06, Mike Hyder -N4NT- <firstname.lastname@example.org> wrote:
> I believe the audio CW filter was an accessory -- a plug-in circuit board.
> Another option is the noise blanker -- highly effective against line noise
> and ignition noise. The upper 1 MHz of the 10 meter band required two
> optional crystals. People with these options often try to get top dollar
> for them so buying a rig with whatever you want already inside is wise.
That seems the gamut of internal options. External options were aux vfo,
160M transverter, and ps with VOX.
73, Barry N1EU
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