[Heathkit] AT-1 Question

[Garey Barrell]

Joe -

The link coupled output does NOT have the harmonic suppression provided by a 
Pi-Net.  I used to have typical numbers, but long forgotten!  :-)

That said, it is pretty difficult to match anything but a resonant antenna with 
link coupling, so you usually end up with an antenna tuner anyway!  The Heath 
AC-1 was offered by Heath to address this need, but it cost half as much as the 
transmitter, so most (poor!) hams just kludged something together. With the 
result that the AC-1 is even more scarce today than the AT-1.  The AC-1 included 
a low pass filter AND and LC matching network AND a neon "output indicator".

73, Garey - K4OAH
Atlanta



Wj5mh@aol.com wrote:

> It appear the AT-1 has a link coupled output.  What is the harmonic 
> suppression characteristics compared to a pi-section output?
> 
> Thanks,
> Joe
> 
>