[TowerTalk] Tower and antenna decisions

[Herb Schoenbohm]

If I can rephrase Richard's remark that says "Amp that can't handle that 
has no place in my shack." or Amp that has tubes without handles has no 
place in my shack. ☺

Herb, KV4FZ





On 10/26/2013 4:05 PM, Jim Brown wrote:
> On 10/26/2013 12:34 PM, Richard Solomon wrote:
>> That just shows the failings of SS Amps. A 1.3:1 SWR equates to 1.7%
>> reflected power. Any
>> Amp that can't handle that has no place in my shack.
>>
>> As for tube amps, just shows the benefits of a tuneable Pi-Network.
>
> My neighbor K6XX, the engineer at Elecraft who put the KPA500 into 
> production and has done extensive testing of many competing 
> amplifiers, observes that the IMD produced by a solid state power 
> amplifier rises rapidly with a mismatched load, and also when 
> operating too close to its limits. To prevent this, the firmware in 
> the KPA500 limits power output, and also causes it to fold back with 
> SWR around 2:1. Both of us run tube amps for contesting.
>
> 73, Jim K9YC
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk