SB 303

[Jack Barnes]

Hi Dale,
The RF gain control on the SB 303 varis the rf amplifier gain but won't
change the audio level on  a strong signal till the  agc drops below the
threshold.  The pull out switch was used when receiving RTTY so that you
didn't have to listen to the teletype tones. Once the RTTY signal was tuned
in you pulled out the RF knob then just watched teleprinter print.

Jack WA7KMR

----- Original Message -----
From: "Dale Jones" <aa7xx at SIPNSEARCH.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Wednesday, November 26, 2003 10:14 AM
Subject: SB 303


> On my SB 303, reference to RF Gain control,  when you turn the control
> counter clockwise, the voice does not mute,  I thought the sound was
> suppose to mute when turned fully counter clockwise, but the sound does
not
> change when turn counter clockwise or clockwise.
>
> However when you pill the switch out it will mute  all the noise. and
stays
> muted regardless of turning the switch clockwise or counter clockwise
>
> The question is  this the way the SB 303 works.
>
> Thanks Dale AA7XX
>
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