If using a two tone oscillator is the best way to tune a tube amp, would it
> If you are interested in doing the job totally "right" when using SSB, the
> only way to be assured of good linearity in the amplifier, is to use a
> two-tone test oscillator fed into the audio input and a monitor
> oscilloscope
> that gives a trapezoidal test pattern. Yes, I know a lot of people use a
> CW carrier to do that and are successful at least some of the time. It is
> easy to mistune this way and NOT get good linearity and maximum `PEP output
> however. This degrades your signal and often times may disturb QSO's up or
> down the band with non-linearity products.
>
> Cheapest test scope used to be the Heathkit SB-610 which has a built in 2
> tone test oscillator. I think Yaesu and Kenwood also made these as well.
> Once you get used to the procedure it is easy and fast and assures a very
> clean and potent signal.
>
> 73,
>
> Sandy W5TVW
> -----Original Message-----
> From: Ian Kahn - Ham
> Sent: Thursday, January 19, 2012 9:51 PM
> To:
[hidden email]
> Subject: [Elecraft] Tuning AL-811H
>
> I have a question about tuning an AL-811H amplifier with my K3. When I
> used my FT-857D in the shack, I would tune to the antenna in FM mode.
> However, I don't have the FM filter on my K3. I tried tuning the amp
> using AM, but I don't have that filter either. So, what is the best
> mode to use that allows me to briefly transmit an uninterrupted carrier
> so I can get this amp set up and the settings written down? BTW, after
> going through this, the saving for the KPA500/KAT500 will soon begin.
>
> Thanks everyone for the assist.
>
> 73,
>
> --Ian
> Ian Kahn, KM4IK
> Roswell, GA
>
[hidden email]
> K3 #281, P3 #688
>
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