[AMPS] Suppressor measurements

[measures]

>
Fred.  Would you like to Rx a sample of the low VHF-Q suppressor we 
proffer for the 3-500Z?   If yes, send me a snailmail address.  

cheers


>It seems there is a paucity of data relating to comparitive suppressors.  I 
>am in a position to have access (limited) to several versions of RLC 
>measurement instrumentation.  Given time ( a month or so ) I could arrange 
>to have measurements made of suppressors for comparison purposes ( I would 
>have to provide a certain person his six-pack requirements for a month ) and 
>even get a report.  I would be willing to do so once for this reflector, 
>given that it's rather more than a tad of inconvenience.  I tend to travel 
>rather a lot, so if there is a lad elsewhere who'd want to collect the 
>suppressors, then supply them to me at an agreed-upon date (via parcel post, 
>I presume), I would have them measured, then report.  Given my understanding 
>of the nature of such measurements, I would report the series equivalent 
>impedance (R +jX) the parallel equivalent impedance (G + jB), or perhaps 
>only one of the above, as phase angle dictates.
>
>I would think it to be a splendid additional measurement to have someone 
>with a vector impedance meter do measurements of the actual input impedance 
>of the tuning network of various "famous" amplifiers versus frequency, 
>bandswitch settings, and so on, so that we can all correlate suppressor 
>performance with ultimate performance.  I, for one, would pooh-pooh any 
>supposed benefits of a high-Q suppressor, if that Q was achieved at a 
>frequency where the output network of my "famous-maker" amplifier happened 
>to have a parallel resonance (shall we say, Z=10kohms + j5 ?)  I beleive we 
>can all agree that standard LaPlacian analysis has merit and fits our 
>network analysis standard, yes?
>
>I shall await a reply.  Let us say that on May 1, I shall submit up to ten 
>(10) suppressors to my test facility.  Perhaps somebody else would like to 
>keep a tally of which amplifiers will be made availalbe at one time at 
>another test facility for S21 evaluation of the output networks (some large 
>populous - NYC?  Philadelphia?  Atlanta?  Los Angeles?)
>
>Cheerio,
>
>Fred

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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