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bitrex
Guest

Tue Apr 28, 2020 5:45 am   



On 4/28/2020 12:31 AM, David Lesher wrote:
Quote:
Michael Terrell <terrell.michael.a_at_gmail.com> writes:


Prior to the pig being replaced, the only time I could use AM was during=
power outages, or after a hurricane. It wasn't dirty insulators, since it =
was the same before, during and after rain.

And not when a Tesla drives by. Teslas do not have AM band on
their radios. You can guess why....


There's nothing on AM radio but right-wing talk shows and mariachi music?

This one seems to work fine:

<https://youtu.be/UtB1fVDaFf4>

David Lesher
Guest

Tue Apr 28, 2020 5:45 am   



dplatt_at_coop.radagast.org (Dave Platt) writes:


Quote:
In the 20-some years we've owned our house, the local squirrels have
managed to chew through the power-line neutral wire from the pole-pig.

Twice.

Having high voltage in the house due to an open neutral is not fun.
Fortunately there was no damage either time.


"Open Neutral" are words that DO get a line crew dispatched, quickly.

--
A host is a host from coast to coast.................wb8foz_at_nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Ricky C
Guest

Tue Apr 28, 2020 6:45 am   



On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher wrote:
Quote:
Michael Terrell <terrell.michael.a_at_gmail.com> writes:


Prior to the pig being replaced, the only time I could use AM was during=
power outages, or after a hurricane. It wasn't dirty insulators, since it =
was the same before, during and after rain.


I bet you can't guess why...

--

Rick C.

--- Get 1,000 miles of free Supercharging
--- Tesla referral code - https://ts.la/richard11209


Guest

Tue Apr 28, 2020 7:45 am   



Ricky C <gnuarm.deletethisbit_at_gmail.com> wrote in
news:356dec28-f96a-42c2-9736-79c1fb86cd6f_at_googlegroups.com:

Quote:
On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher
wrote:
Michael Terrell <terrell.michael.a_at_gmail.com> writes:


Prior to the pig being replaced, the only time I could use AM
was during=
power outages, or after a hurricane. It wasn't dirty
insulators, since it =
was the same before, during and after rain.

I bet you can't guess why...


No guess about it. It had a poor ground link connection. The rains
completed it a bit better.

Ricky C
Guest

Tue Apr 28, 2020 8:45 am   



On Tuesday, April 28, 2020 at 2:35:26 AM UTC-4, DecadentLinux...@decadence.org wrote:
Quote:
Ricky C <gnuarm.deletethisbit_at_gmail.com> wrote in
news:356dec28-f96a-42c2-9736-79c1fb86cd6f_at_googlegroups.com:

On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher
wrote:
Michael Terrell <terrell.michael.a_at_gmail.com> writes:


Prior to the pig being replaced, the only time I could use AM
was during=
power outages, or after a hurricane. It wasn't dirty
insulators, since it =
was the same before, during and after rain.

I bet you can't guess why...


No guess about it. It had a poor ground link connection. The rains
completed it a bit better.


Something happened to my post. I was actually replying to David Lesher, but I must have trimmed his remark.

Guess I shouldn't be posting drunk. Or maybe I shouldn't post sober. Not sure which applies in this case. Is my typing slurred???

--

Rick C.

--+ Get 1,000 miles of free Supercharging
--+ Tesla referral code - https://ts.la/richard11209


Guest

Tue Apr 28, 2020 3:45 pm   



Our local untility keeps a master line technician with decades of experience and a ham license on staff for these things. Most of the folks who do his job are post retirement or no longer able to climb, but have good troubleshooting skills.

His van has three things, a Korean War era tube shortwave receiver a beefy TDR for finding underground line breakes in MV cables, and a simple spectrum analyser with a premap optimized for Low Band VHF. Also a recever set for a VHF carrier in the local cable TV systems, so the problem can be solved by the correct entity.

He has a variety of antennas and pickup and coupling coils, but perfers the SW set and a long wire antenna tossed out the back of the van, claming that solves 95% of the problems.

Michael Terrell
Guest

Tue Apr 28, 2020 6:45 pm   



On Tuesday, April 28, 2020 at 10:04:57 AM UTC-4, srober...@gmail.com wrote:
Quote:
Our local untility keeps a master line technician with decades of experience and a ham license on staff for these things. Most of the folks who do his job are post retirement or no longer able to climb, but have good troubleshooting skills.

His van has three things, a Korean War era tube shortwave receiver a beefy TDR for finding underground line breaks in MV cables, and a simple spectrum analyser with a preamp optimized for Low Band VHF. Also a receiver set for a VHF carrier in the local cable TV systems, so the problem can be solved by the correct entity.

He has a variety of antennas and pickup and coupling coils, but prefers the SW set and a long wire antenna tossed out the back of the van, claiming that solves 95% of the problems.


Some of the LED lamps being retrofitted into old traffic lights radiate all kinds of crap. Some, in rural areas can be heard on a radio, further than you can see them.

We used a radio made by Sniffer back in the '80s in our CATV service vans to monitor out distribution system at all times. The idiot manager tried to save a few dollars and bought a used monitoring system. It was made for a 12 channel system, not our 36 channel design. It wiped out the channel assigned to MTV, so I didn't need the encoder. The visual carrier of that TV channel worked just as well.

Michael Terrell
Guest

Tue Apr 28, 2020 6:45 pm   



On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher wrote:
Quote:
Michael Terrell writes:

Prior to the pig being replaced, the only time I could use AM was during=
power outages, or after a hurricane. It wasn't dirty insulators, since it =
was the same before, during and after rain.

And not when a Tesla drives by. Teslas do not have AM band on
their radios. You can guess why....


Poor design of the motor controls and little or no shielding? A decent AM radio design was more complex than all of the electronics in a Tesla?

Ricky C
Guest

Tue Apr 28, 2020 7:45 pm   



On Tuesday, April 28, 2020 at 1:03:34 PM UTC-4, Michael Terrell wrote:
Quote:
On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher wrote:
Michael Terrell writes:

Prior to the pig being replaced, the only time I could use AM was during=
power outages, or after a hurricane. It wasn't dirty insulators, since it =
was the same before, during and after rain.

And not when a Tesla drives by. Teslas do not have AM band on
their radios. You can guess why....


Poor design of the motor controls and little or no shielding? A decent AM radio design was more complex than all of the electronics in a Tesla?


Demographics. Tesla really isn't targeting the market that includes many AM listeners. I can't remember the last time I listened to AM radio in any venue.

Cars have to meet part 15 emission standards like any other device. Unlike ICE, electric batteries and motors don't have wear parts in the electrical path that degrade and generate emissions.

I guess the FM radio LO might emit a bit.

I've never understood why people would hate an entire car company when they've never owned a product. Is it the idea of doing something that other companies said wasn't practical? Is it the idea of the cars themselves? Tesla hate just seems so totally irrational to me. That's why I understand Larkin hating them.

--

Rick C.

-+- Get 1,000 miles of free Supercharging
-+- Tesla referral code - https://ts.la/richard11209

Michael Terrell
Guest

Tue Apr 28, 2020 8:45 pm   



On Tuesday, April 28, 2020 at 2:30:36 PM UTC-4, Ricky C wrote:
Quote:
On Tuesday, April 28, 2020 at 1:03:34 PM UTC-4, Michael Terrell wrote:
On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher wrote:
Michael Terrell writes:

Prior to the pig being replaced, the only time I could use AM was during=
power outages, or after a hurricane. It wasn't dirty insulators, since it =
was the same before, during and after rain.

And not when a Tesla drives by. Teslas do not have AM band on
their radios. You can guess why....


Poor design of the motor controls and little or no shielding? A decent AM radio design was more complex than all of the electronics in a Tesla?

Demographics. Tesla really isn't targeting the market that includes many AM listeners. I can't remember the last time I listened to AM radio in any venue.

Cars have to meet part 15 emission standards like any other device. Unlike ICE, electric batteries and motors don't have wear parts in the electrical path that degrade and generate emissions.

I guess the FM radio LO might emit a bit.

I've never understood why people would hate an entire car company when they've never owned a product. Is it the idea of doing something that other companies said wasn't practical? Is it the idea of the cars themselves? Tesla hate just seems so totally irrational to me. That's why I understand Larkin hating them.


I've never had 100% third degree burns, either. Not that I want either. I do tire of all the fanboi BS about them, and your continuous spam about them.. That does more to make me not want something than anything else. Most advertising bores me to tears, especially the 'All of our customers are idiots' style that is so popular today.


Guest

Tue Apr 28, 2020 9:45 pm   



Ricky C <gnuarm.deletethisbit_at_gmail.com> wrote in
news:0615dc3d-3e9c-402e-8bef-9517c2f3c31c_at_googlegroups.com:

Quote:
On Tuesday, April 28, 2020 at 1:03:34 PM UTC-4, Michael Terrell
wrote:
On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher
wrote:
Michael Terrell writes:

Prior to the pig being replaced, the only time I could use
AM was d
uring=
power outages, or after a hurricane. It wasn't dirty
insulators, sinc
e it =
was the same before, during and after rain.

And not when a Tesla drives by. Teslas do not have AM band on
their radios. You can guess why....


Poor design of the motor controls and little or no shielding?
A decent
AM radio design was more complex than all of the electronics in a
Tesla?

Demographics. Tesla really isn't targeting the market that
includes many AM listeners. I can't remember the last time I
listened to AM radio in any venue.

Believe it or not, civil defense still exists.


We have a hard time purging things like despotic, dictatorial
crackpots, but otherwise look out for folks pretty well.

If ALL of CD were still in place, THEY would have handled this
pandemic response, and would NOT have called the threat minimal.

And then went golfing.

Quote:
Cars have to meet part 15 emission standards like any other
device.


But it has nothing to do with the radio they have installed.

Grasping at straws? That is a laugh. Every "radio" in cars these
days are already emissions approved, third party supply chain
acquisistions.

Quote:
Unlike ICE, electric batteries and motors don't have wear
parts in the electrical path that degrade and generate emissions.


You are mumbling. High wattage brushless motors have age issues
too, and they and their drive circuits experience age related
"additional emissions" in some of those circumstances.

> I guess the FM radio LO might emit a bit.

Yo are way too far in to it. Car radios are already approved third
party devices. Car makers do NOT have to get their car re-evaluated
for rule part 15 compliance every time they choose a new radio. It's
called COTS.

And these days, there is very little part 15 compliance police out
there looking at everything since mothing has been greatly emissive
since they took away the computer case shileding specs years ago.
If a zinged out motherboard can keep it down, the FCC pretty much
presumes everything else can and does as well. So they wait. You
file a complaint on a device, and THEN they go give it a look.
The MAKER has to declare compliance, and *should* actually be
providing it. But not necc so and not always the case, and unless
and until an rf noise emissions complaint would get filed on a
device, they ain't looking any more.

Quote:
I've never understood why people would hate an entire car company
when they've never owned a product.


Now you are back on track. First ask them how they voted. That
should give you a quick, which side of the bell curve they fall on
feel.

Quote:
Is it the idea of doing
something that other companies said wasn't practical?


I want Musk to help me buil my city.

Quote:
Is it the
idea of the cars themselves?


Remember how hated Bill Gates was? Idiots despise successful
business persons. That is one way you can tell without asking them
how they voted. They claim to love America, but hate Americans that
have made it.

Look at all the derision cast upon Bloomberg.

That guy made part of this nation for decades, just like Perot did.

Larkin hates NASA. That is the third method. They claim to be so
intelligent, yet deride known hard science.

Quote:
Tesla hate just seems so totally
irrational to me.


The guy isn't really even all that eccentric. I like him because
hes MUST have a lot of intelligence. I mean come on, people. The
guy is brilliant.

And a quasar compared to the little brown dwarf that Trump's
"Brilliance level" hovers at. (or is it orange).

Quote:
That's why I understand Larkin hating them.

I just read this, and look what I already wrote above.


He likely has all three attributes.

David Lesher
Guest

Wed Apr 29, 2020 11:45 pm   



Ricky C <gnuarm.deletethisbit_at_gmail.com> writes:


Quote:
Cars have to meet part 15 emission standards like any other device. Unlike=
ICE, electric batteries and motors don't have wear parts in the electrical=
path that degrade and generate emissions.=20


Well, I brought this up in a regulatory list and got multiple answers, and a cite:


§15.103 Exempted devices.

The following devices are subject only to the general conditions
of operation in §§15.5 and 15.29 and are exempt from the
specific technical standards and other requirements contained in
this part. The operator of the exempted device shall be required
to stop operating the device upon a finding by the Commission
or its representative that the device is causing harmful
interference. Operation shall not resume until the condition
causing the harmful interference has been corrected. Although
not mandatory, it is strongly recommended that the manufacturer
of an exempted device endeavor to have the device meet the
specific technical standards in this part.

(a) A digital device utilized exclusively in any transportation
vehicle including motor vehicles and aircraft.

Another response from no less than Henning Schulzrinne (!?!) brought
up https://ecfsapi.fcc.gov/file/7520954477.pdf

--
A host is a host from coast to coast.................wb8foz_at_nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Ricky C
Guest

Thu Apr 30, 2020 12:45 am   



On Wednesday, April 29, 2020 at 6:00:19 PM UTC-4, David Lesher wrote:
Quote:
Ricky C <gnuarm.deletethisbit_at_gmail.com> writes:


Cars have to meet part 15 emission standards like any other device. Unlike=
ICE, electric batteries and motors don't have wear parts in the electrical=
path that degrade and generate emissions.=20

Well, I brought this up in a regulatory list and got multiple answers, and a cite:


§15.103 Exempted devices.

The following devices are subject only to the general conditions
of operation in §§15.5 and 15.29 and are exempt from the
specific technical standards and other requirements contained in
this part. The operator of the exempted device shall be required
to stop operating the device upon a finding by the Commission
or its representative that the device is causing harmful
interference. Operation shall not resume until the condition
causing the harmful interference has been corrected. Although
not mandatory, it is strongly recommended that the manufacturer
of an exempted device endeavor to have the device meet the
specific technical standards in this part.

(a) A digital device utilized exclusively in any transportation
vehicle including motor vehicles and aircraft.

Another response from no less than Henning Schulzrinne (!?!) brought
up https://ecfsapi.fcc.gov/file/7520954477.pdf


There are enough vehicles out there that they were going to cause problems we would be seeing them already. I'm pretty confident the car makers aren't going to ship products that create large amounts of EM. That would result in owners being forced to fix or sell their cars and that would look pretty bad for a car company.

--

Rick C.

-++ Get 1,000 miles of free Supercharging
-++ Tesla referral code - https://ts.la/richard11209

David Lesher
Guest

Thu Apr 30, 2020 2:45 am   



Ricky C <gnuarm.deletethisbit_at_gmail.com> writes:


Quote:
There are enough vehicles out there that they were going to cause problems =
we would be seeing them already. I'm pretty confident the car makers aren'=
t going to ship products that create large amounts of EM. That would resul=
t in owners being forced to fix or sell their cars and that would look pret=
ty bad for a car company. = 20


I think car companies will follow the regulations they are
required to, and not extend themselves over those they are not.

And it takes some effort to constrain motor controllers from
making sharp transitions.


--
A host is a host from coast to coast.................wb8foz_at_nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Ricky C
Guest

Thu Apr 30, 2020 2:45 am   



On Wednesday, April 29, 2020 at 9:27:24 PM UTC-4, David Lesher wrote:
Quote:
Ricky C <gnuarm.deletethisbit_at_gmail.com> writes:


There are enough vehicles out there that they were going to cause problems =
we would be seeing them already. I'm pretty confident the car makers aren'=
t going to ship products that create large amounts of EM. That would resul=
t in owners being forced to fix or sell their cars and that would look pret=
ty bad for a car company. = 20

I think car companies will follow the regulations they are
required to, and not extend themselves over those they are not.

And it takes some effort to constrain motor controllers from
making sharp transitions.


That does not equate to radiating EMI. That requires an antenna.

Actually, sharp transitions in current are hard to obtain. Motors have lots of inductance and the DC/DC converter circuits all have lots of inductance. There is a whole sub-field regarding reduction of EMI and there is no reason to think EVs have any problems keeping it under control.

--

Rick C.

+-- Get 1,000 miles of free Supercharging
+-- Tesla referral code - https://ts.la/richard11209

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