All:
Original article from: Wayne Sarosi
Reposted by Rob Dennis,Moderator HAM_TECH,for use of the FIDO HAM_TECH echo.
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SUBJECT: Amateur Radio Shack Designs,part 1 of 5
Another subject I have promised to write about was Amateur Radio Shack
Designs,so in good faith,I'll start it here.
Being one who still hasn't found the perfect radio shack or more likely,one
who can't afford the perfect radio shack,I have gone from a desk in the
arage
to an air-conditioned 8 X 10 foot walled in corner in the garage with every-
thing from a computer to a Ten-Tec Closet Kilo-Watt.
I have had several towers and antenna systems here at the QTH,but those are
another story.
There are several major items I'll talk about here before I get into the
details of shack design.
These items include electrical power,grounding,ergonomics,RF
istribution,and
DC power distribution.
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ELECTRICAL POWER:
One of the major problems in any shack is the electrical power capabilities
of the shack. Many Amateurs have overloaded circuits,reverse neutrals and hot
leads,and worst of all,a stack of extention cords running all over the shack.
Hey Vern,call 911,ya know what I mean?
This can cause Hum,frequent breaker popping,fires,and be a source for RF
suceptability and conducted RFI.
There are a series of steps to look at when designing or refurbing your
shack.
1) Main Breaker Box
a) How many spare breakers or room for breakers are there available?
b) How many breakers actually going to the room are shared with other
rooms in the house?
c) Is there a spare 220v breaker or room for one?
2) Power Required
a) Considering all your equipment,what would be half the maximum
current draw required to power your station?
b) How many power outlets would be required to service your shack?
Consider the future.
c) Considering several shack rearrangements,where would the best place
be for these outlets and where would the 220v outlets allow maximum
access for a linear?
3) Consummed Power
a) What am I actually using most and would I ever have every rig on
using maximum power at any time?
b) What is my realistic power draw?
==========================================
Now,answer these questions.
If you have an existing shack,lay-out the electrical system.
Now you are ready to make the electrical design for your shack.
Remember,keep it modular,keepit versatile,and keep in mind the future.
For an example,I'll show you what my room looks like:
continued next posting.......
-WS
--- GoldED 2.42.G1219
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* Origin: VE3SJN....Moderator....HAM_TECH (1:163/506.4)
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