[Elecraft] ALC

[dj7mgq at muenchen-mail.de]

> I recently purchased a SPE 1K A linear solid state amplifier. It does not
> ... (stuff removed) ...
> cancel my order.

I'm sorry, but I slowly am starting to feel that this ALC discussion is getting
out of hand. Personally I have never needed ALC, but do understand that in some
cases it might be useful. But to claim that an amplifier will not work without
ALC strikes me as going a bit too far. Also we have passed examinations to get
our calls and have proved that we have knowledge to design and build equipment
ourselves. Even if it might not be nice to have an external box, it surely is
not a show stopper? Faber est suae quisque fortunae.

And, imho, the use of ALC to continuously control the exciter is usually not a
good idea, unless the timing and other characteristics of the ALC match the
exciter perfectly.


BTW, according to the SPE 1K FA Manual:
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Page 10:

Is a voltage (0, -11 Vcc) generated by the amplifier, it is 
used to control the output power of the transceiver. In this 
way the power from the amplifier may be automatically controlled. 
This link is recommended.

If the ALC port is not connected, it is ncessary to manually 
regulate the drive power from the transceiver.


Page 28:

if you choose to set the output power of the amplifier by 
varying the output power of the transceiver, the ALC connection
is not required.


<http://www.reimesch.de/download/amateurfunk/expert/expert_manual_v20.pdf>
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vy 73 de toby