8 Jun
2001
8 Jun
'01
7:36 a.m.
It does bring up a related question. If memory serves, electronic
equipment for home use has to have an FCC class C rating, whereas
equipment for business only needs to have a class B rating, since
nobody is expecting to run TVs, radios, etc nearby (at least in
theory). So my question is, if my vaxstation is only class b
rated, can I get in trouble having it in my home? (not sure
the vaxstation isn't class c rated, it's just an example here.)
--
Jim Strickland
jim(a)DIESPAMMERSCUMcalico.litterbox.com
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8 Jun
8 Jun
8:17 a.m.
It does bring up a related question. If memory serves,
electronic
equipment for home use has to have an FCC class C rating, whereas
equipment for business only needs to have a class B rating, since
nobody is expecting to run TVs, radios, etc nearby (at least in
theory). So my question is, if my vaxstation is only class b
rated, can I get in trouble having it in my home? (not sure
the vaxstation isn't class c rated, it's just an example here.)
--
Jim Strickland
The answer is probably. Of course I've got a 1990 Twinhead Laptop which
generates more interference than something like my PDP-11/44, PDP-11/73, or
PDP-8/m. Actually that laptop is the onlything I can think of that I've
got that does generate troublesome interference. It can be in another room
and mess up a TV in the next room. IIRC, if it's in the same room as the
TV, the TV is unwatchable.
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
8:43 a.m.
Can't be any worse than my 220 watt linear amp and amplified mic...I won't
say what meter band it's running though. Throws all sorts of harmonics for
miles.
-----Original Message-----
From: owner-classiccmp(a)classiccmp.org
[mailto:owner-classiccmp@classiccmp.org]On Behalf Of Zane H. Healy
Sent: Friday, June 08, 2001 12:18 PM
To: classiccmp(a)classiccmp.org
Subject: re: storing gear and businesses and so on
It does bring up a related question. If memory
serves, electronic
equipment for home use has to have an FCC class C rating, whereas
equipment for business only needs to have a class B rating, since
nobody is expecting to run TVs, radios, etc nearby (at least in
theory). So my question is, if my vaxstation is only class b
rated, can I get in trouble having it in my home? (not sure
the vaxstation isn't class c rated, it's just an example here.)
--
Jim Strickland
The answer is probably. Of course I've got a 1990 Twinhead Laptop which
generates more interference than something like my PDP-11/44,
PDP-11/73, or
PDP-8/m. Actually that laptop is the onlything I can think of that I've
got that does generate troublesome interference. It can be in
another room
and mess up a TV in the next room. IIRC, if it's in the same room as the
TV, the TV is unwatchable.
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ | 
8:32 a.m.
On Fri, Jun 08, 2001 at 10:36:14AM -0600, Jim Strickland wrote:
It does bring up a related question. If memory
serves, electronic
equipment for home use has to have an FCC class C rating, whereas
equipment for business only needs to have a class B rating, since
nobody is expecting to run TVs, radios, etc nearby (at least in
theory). So my question is, if my vaxstation is only class b
rated, can I get in trouble having it in my home? (not sure
the vaxstation isn't class c rated, it's just an example here.)
<pendant> it's a not c </pendant>
from what i understand, you may run said equipment, but
if it causes
interference in someone's class b equipment you must stop using
the class a
stuff _OR_ face up to, what is it, i think $50,000 fine. but afaik, you are
allowed to run it as long as no-one complains.
-brian
1:03 p.m.
Only if it causes interference on your neighbors TV. Since most
everyone is on cable or satellite nowdays, that isn't really
an issue.
As a side note, my Sony DSS receiver (SAT-B1) causes so much
interference, you can't watch TV from rabbit ears in the
next room. I wonder how they got it past the FCC...
Clint
On Fri, 8 Jun 2001, Jim Strickland wrote:
It does bring up a related question. If memory
serves, electronic
equipment for home use has to have an FCC class C rating, whereas
equipment for business only needs to have a class B rating, since
nobody is expecting to run TVs, radios, etc nearby (at least in
theory). So my question is, if my vaxstation is only class b
rated, can I get in trouble having it in my home? (not sure
the vaxstation isn't class c rated, it's just an example here.)
--
Jim Strickland
jim(a)DIESPAMMERSCUMcalico.litterbox.com
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1:41 p.m.
It can interfere with the picture and sound if the unit is noisy
electrically and you share a transformer though. I had a PC power supply so
noisy that it made my X10 devices sporatically go on/off/dim/etc. Put a
filtered input on for the power cord (scrapped from a Mac) and no more noise
on the line and my TV even got better reception (no cable here and sat was
new stuff then).
-----Original Message-----
From: owner-classiccmp(a)classiccmp.org
[mailto:owner-classiccmp@classiccmp.org]On Behalf Of Clint Wolff (VAX
collector)
Sent: Friday, June 08, 2001 5:03 PM
To: classiccmp
Subject: re: storing gear and businesses and so on
Only if it causes interference on your neighbors TV. Since most
everyone is on cable or satellite nowdays, that isn't really
an issue.
As a side note, my Sony DSS receiver (SAT-B1) causes so much
interference, you can't watch TV from rabbit ears in the
next room. I wonder how they got it past the FCC...
Clint
On Fri, 8 Jun 2001, Jim Strickland wrote:
It does bring up a related question. If memory
serves, electronic
equipment for home use has to have an FCC class C rating, whereas
equipment for business only needs to have a class B rating, since
nobody is expecting to run TVs, radios, etc nearby (at least in
theory). So my question is, if my vaxstation is only class b
rated, can I get in trouble having it in my home? (not sure
the vaxstation isn't class c rated, it's just an example here.)
--
Jim Strickland
jim(a)DIESPAMMERSCUMcalico.litterbox.com
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11 Jun
11 Jun
1:33 a.m.
At 05:41 PM 6/8/01 -0500, you wrote:
I had a PC power supply so
noisy that it made my X10 devices sporatically go on/off/dim/etc. Put a
filtered input on for the power cord (scrapped from a Mac) and no more noise
on the line and my TV even got better reception (no cable here and sat was
new stuff then).
I'm surprised... it would have had to generate substantial
120KHz harmonics in the 120VAC side to do this.
carlos.
--------------------------------------------------------------
Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org
8443
days inactive
8446
days old
8 comments
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