[Amps] Alpha 9500 vs. Acom 2000A questions

[Dick Green]

Strange that the factory recommends keeping autotune off. I've never found that to be necessary with the 87A. Once it finds a match, the autotune stops hunting. Could be that they're concerned about antennas that are harder to match than mine, which are all resonant at the operating frequency. That said, I my understanding is that the 9500 autotune is considerably faster than the 87A, so maybe it's more sensitive to slight impedance variations. 

73, Dick WC1M

73, Dick WC1M

> On Dec 4, 2016, at 12:48 AM, Bill Turner <dezrat at outlook.com> wrote:
> 
> ------------ ORIGINAL MESSAGE ------------(may be snipped)
> 
>> On Sat, 03 Dec 2016 19:08:33 -0800, Paul wrote:
>> 
>> I believe the Alpha will auto tune if it wants to based 
>> on poor SWR, but the ACOM only auto tunes when you ask it to.
> 
> REPLY:
> 
> The Alpha 9500 can be left in autotune mode, but the manual recommends
> against it because of continuous "hunting" for a match. This no doubt
> will cause excessive wear on the stepper motors too.
> 
> Best to tune it once and shut off autotune. That's what I do and it
> works fine. 
> 
> 73, Bill W6WRT
>