[Top] [All Lists]

Re: [Amps] Ameritron ALS 500M

To: "Jim Thomson" <>, <>
Subject: Re: [Amps] Ameritron ALS 500M
From: "Jim W7RY" <>
Reply-to: Jim W7RY <>
Date: Thu, 3 Dec 2015 00:11:29 -0800
List-post: <">>
Jim....Better look at the Kenwood TS-480H. 200 watts, 12 volts.

Jim W7RY

-----Original Message----- From: Jim Thomson
Sent: Saturday, November 28, 2015 4:43 PM
Subject: [Amps] Ameritron ALS 500M

Date: Tue, 24 Nov 2015 11:09:33 -0500
From: "Mike Feher" <>
To: "'Al Kozakiewicz'" <>, <>
Subject: Re: [Amps] Ameritron ALS 500M

Al -

Interesting comment. It will be easy enough to measure the two tone IMD as a
function of voltage. I assume the higher order ones will not matter as they
should be pretty far down, but, possibly the first and 2nd order may be
worth a look. It is interesting that almost all HF radios in the 100 to 200
watt class are solid state running off of 12 volts. I know in those the 12
volts is not regulated or preset to any specific value. In fact, I also have
a Kenwood TR-450SAT with matching PS-30 power supply. That is about the
worst supply I have ever seen as far as regulation goes. I would think your
comment would apply to all those rigs as well. 73 - Mike

Mike B. Feher, N4FS

## don’t count on it. it’s the higher order IMD that causes all the splatter
problems, like the IMD 7-19.     The ALS-500 is a mobile amp.  The premise
is, in a mobile setup, signals are not going to be loud anyway, with typ mobile
vert antennas........ vs a yagi on  a tower.

## There is no 200 watt xcvrs that run on 12 vdc. They are all 30 vdc or 50 vdc.

Jim   VE7RF

Amps mailing list
Amps mailing list
<Prev in Thread] Current Thread [Next in Thread>