[Elecraft] Re KX3 booster

[Bob McGraw K4TAX]

My comment and understanding on "FCC Certified".    The FCC now allows 
companies to perform "self certification".   In other words, they allow 
the fox to watch the hen house.    The companies can elect to do the 
testing and submit the results to the FCC. Thus the FCC does not 
actually test products to issue the certification.   I personally find 
many items, such as, power supplies, CFL lamps, routers, printer power 
supplies, and a host of other items that are producing noise and these 
do have the required Part 15 along with other certification labels.

I did work for a company whose products were required to be "certified" 
by several safety organizations and to meet radiation and safety 
standards.  We used an independent testing company for all of these 
tests.     On more than one occasion I observed a product just barely 
meet or just barely  exceed the required radiation levels.   The company 
said "this is close enough we can pass it".   I said NOPE, it has to go 
back to Engineering to be improved.  Well need less to say that caused 
turmoil with Sales, Marketing, Engineering and Management.    But I 
stood my ground and said "improve it" knowing that production units 
might be worse in terms of emissions.   Many companies seem to take the 
approach "we saw it work once and it almost meets specs........ship it". 
Further we find that production changes through the life of a product 
may be related to part and design changes.   No further testing is 
required as the model number does not change.   The labels are affixed 
and the items shipped.  Who knows if they meet the required safety and 
emissions requirements?   Just because it has the required labels and 
statements is no assurance that it meets those requirements.   It is 
called "economics".

73

Bob, K4TAX


On 11/6/2018 2:25 PM, dyarnes wrote:
> John and All,
>
> I’m not necessarily recommending these amps, but you may possibly be confusing them with a prior model line--  The original  “HLA” series, such as the HLA 150 and HLA 300.  Those amps were marginal at best, although if you ran them well below their rated output they weren’t “too dirty”!  Hi.  RM Italy also sold a line of amps that didn’t even have proper bandpass filtering as they were intended primarily for CB.  I think those just had an “HL” designation.
>
> These newer models supposedly are a much better design.  I first saw them at Dayton a couple of years ago.  The price went up substantially too!  Supposedly these are all FCC certified, whereas the prior models were not.
>
> Dave W7AQK
>
>
>
>
> -------------------------------------------------------------------------------
> From: John Harper <johnae5x at gmail.com>
>
> I'm surprised a reputable company like DXE would sell the brand:
>
> https://www.dxengineering.com/search/department/amplifiers/brand/rm-italy/product-line/rm-italy-la-250-series-vhf-linear-amplifiers?autoview=SKU&sortby=Default&sortorder=Ascending
>
> John AE5X
>
> Sent from Mail for Windows 10
>
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