On 1/25/2011 10:04 PM, Hsu wrote:
> I just repaired two AL1500s for my friends,
> i found theat these amps use difference choke,
Which again is no longer necessary, *but* if they change that choke in
the US version they have to go through the FCC approval process again.
73
Roger (K8RI)
> 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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