I just repaired two AL1500s for my friends,
i found theat these amps use difference choke, the USA version can not work
in 10m, you must replace the original choke! I use a vector network
analyser test it.there is a dip point in 10 meter!
73!Hsu
----- Original Message -----
From: "Mike" <noddy1211@sbcglobal.net>
To: <amps@contesting.com>
Sent: Wednesday, January 26, 2011 10:38 AM
Subject: Re: [Amps] Why no 28 MHz
> Yes, and in the case of the ALS-500 charges another 30 bucks to get it on
> 12/10 Meters.
>
> Mike
>
> -----Original Message-----
>
> I thought the FCC had changed the rules about 10 meters on commercial
> ham amps, yet I see that Ameritron still lists their amps 1.8 though 21
> MHz with 28 MHz on the export models.
>
> Why?
>
> 73
>
> Roger (K8RI)
>
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>
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