[Elecraft] Loading Coils For Audio Transmission Lines

ab2tc ab2tc at arrl.net
Mon Mar 31 15:47:31 EDT 2014


Hi Eric,

Forgive me, Eric, for adding yet another post to this long thread. Jim was
very justified in correcting the erroneous information about the reason for
introducing loading coils on long distance phone lines. His information is
right on the money; the purpose was to improve the flatness within the audio
passband, not to make it worse.

AB2TC - Knut


Eric Swartz - WA6HHQ, Elecraft wrote
> Folks,  we're drifting OT. Please wind this thread down and then take it
> to 
> direct email if needed.
> 
> 73,
> 
> Eric
> List Moderator etc.
> elecraft.com
> 
> On 3/31/2014 11:15 AM, Jim Brown wrote:
>>
>> Sorry George, but that's not quite right. The attenuation, velocity
>> factor, 
>> and characteristic impedance of ALL transmission lines vary drastically 
> <snip>





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