[Elecraft] KPA500 feature suggestion - band bypass

[Mike Fatchett]

If the amp is in standby the amp should do whatever it needs to protect 
itself from high swr or whatever.  The other options suggested seem a 
bit out of the ordinary to me.

I will probably buy a LDG tuner anyway as I understand the KAT500 is 
still in design.  The LDG unfortunately does not handle 500 watts on 6m 
even with their 1k version if I am not mistaken.

On 4/6/11 3:30 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
> Hi Ian,
>
> Jack is incorrect. It is not as critical as he implied. I operate often
> into high SWRs with my K3/KAT3 running through  the amp in bypass mode.
> I'll discuss this with the team here and get back to the list with any
> bypass mode operating limits.
>
> 73, Eric
>
> On 4/6/2011 1:55 PM, iain macdonnell - N6ML wrote:
>> Well that sounds very disappointing ... can we gets specs on the
>> maximum reflected power that this sensor circuitry can safely handle ?
>>
>>       ~iain / N6ML
>>
>>
>> On Wed, Apr 6, 2011 at 8:33 PM, Jack Brindle<jackbrindle at me.com>   wrote:
>>> Think twice before you do this. Subjecting the KPA500 to very high SWR
>>> between the transceiver and the antenna (with KPA500 in between, even if at
>>> standby) might damage the KPA500 circuitry. The ATU belongs _after_ the
>>> KPA500, not before it.
>>>
>>> Even though the amplifier section is bypassed, there is still sensor
>>> circuitry active in the front end of the KPA500 that may be damaged from
>>> high power and SWR.
>>>
>>> If you are going to do something like this, be sure to built a relay box
>>> that bypasses the KPA500 to protect it.
>>>
>>> Jack Brindle, W6FB
>>>
>>>
>>> On Apr 6, 2011, at 11:53 AM, iain macdonnell - N6ML wrote:
>>>
>>>> A feature suggestion ... may not be the best time for it, but incase
>>>> it could be worked into the dev-cycle somehow....
>>>>
>>>> I'd like to be able to configure the KPA500 to automatically put
>>>> itself in standby on certain bands, and active on others...
>>>> configuration would look like the K3's band-map.
>>>>
>>>> The reason... in my remote setup, I have resonant antennas on some
>>>> bands, and currently use a KAT3 to make other bands (mostly WARC)
>>>> work. I'd like to be able to use the KPA500 on the "main" bands, but
>>>> still use KAT3 on the others... without having to remember to place
>>>> the KPA500 in standby..... at least until the KAT500 is ready :)
>>>>
>>>>     ~iain / N6ML
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