[Amps] Why no 28 MHz

[Robert Dorchuck]

Ameritron instructions for adding 10 meters to the AL-1500 require cutting
one wire.  Worked fine on mine.  No change of teh RF choke is required.

Bob  W6VY

----- Original Message ----- 
From: "Roger (Sub1)" <sub1 at rogerhalstead.com>
To: <amps at contesting.com>
Sent: Tuesday, January 25, 2011 7:08 PM
Subject: Re: [Amps] Why no 28 MHz


> 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 at sbcglobal.net>
>> To:<amps at 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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