Jim Wilkins wrote:
"Michael A Terrell" wrote in message
...
Jim Wilkins wrote:
"Larry Jaques" wrote in message
...
On Mon, 25 Dec 2017 15:14:05 -0700, Bob La Londe
wrote:

On 12/25/2017 12:53 PM, Larry Jaques wrote:
On Mon, 25 Dec 2017 00:27:12 -0700, Bob La Londe

wrote:

Some not so quick... quick and easy Christmas presents. Started
out to
be 8 of them. I did two prototypes, then did a plan to make
these
4 all
very similar. Destroyed two top pieces because I had the wrong
speeds
and feeds for stainless when cutting out the notch for the
catch.
Didn't
have enough time to make two more top pieces. Still I have
enough
for
the most important people. They use either Parker refills or
Fisher
Space Pen refills. I went with the Fisher Space Pen refills for
the
ones to be given out as gifts.

http://tacklemaker.info/gallery/1_25..._12_25_46.jpeg

Nice. How does the TSA react to these nowadays? I've heard
mixed
reviews. Some "tactical pens" are passed, some are confiscated,
and
some arrests were made.

--
Now therefore, be it Resolved by the Fiftieth Annual Convention
of the Veterans of Foreign Wars of the United States, That we
hereby declare that we are unalterably opposed to any program
which would entail the surrender of any part of the sovereignty
of the United States of America in favor of a world government.

--Veterans of Foreign Wars


No clue. I haven't flown in years. I refuse to be treated like
a
subject. I'll fly if I have to, but I find I don't often have to.

I hear that.

The last time I flew, the guy at the TSA x-ray told me to take off
my
shoes and belt. I laughed, thinking he was joking and he didn't
reply. He repeated it as the two Nat'l Guardsmen with M-16s took
a
step forward. I loudly said COMPLIANCE and hurriedly removed
them
and set them in the bucket for scanning. That was mid-morning the
day
the "shoe bomber" had been nabbed. I was flying to Alaska for my
50th
birthday 14 years ago. My Nikes and belt passed OK and the
Guardsmen
stepped back. Interesting morning. Later, I saw the flash on the
right wing, the plane shuddered, and a loud crack sounded. We
were
struck by lightning on approach to SeaTac. The cabin lights
dimmed,
but the engines didn't skip a beat. 'Twas me first strike.

https://www.quora.com/Can-lightning-...fect-as-an-EMP



If you've ever worked around a tower that was struck by
lightning, you'll know first hand what that induced magnetic pulse
can do to unshielded circuits. I spent hours on cross country phone
calls arranging for replacement parts, and had one of the techs
waiting at the airport for them to arrive after losing audio on
every satellite delivered channel on a CATV system because o the
manager's attitude of, 'It's just audio, why waste money on shielded
cable'? The $20 he saved caused us to spend over $1000 to repair.


Our satcom antennas in domes atop military aircraft were protected
like this:
http://lightningdiversion.com/home/diversion-strips/

https://theaviationist.com/wp-conten...-8C-JSTARS.jpg

What did you use as a reference manual for antenna grounding? My home
antenna mast is next to a granite outcrop that keeps me from
installing the multiple radials I'd like to have.


Thee were no grounding manuals availabe to the CATV industry, so I
used common sense to protect the equipment. Three, 24 ground rods were
driven through the concrete floor for the modulator/processor/computer
racks. Then the racks were lifted over the new ground rods to put them
inside the racks. 8AWG bare copper was welded to the rods, then to the
racks. The paint was ground off the insides of the racks at each bolt
hole, and a star lockwashers were added under each nut and bolt head. At
least eight bolts where each rack joined the next. ALL audio wring was
replaced with Belden two conductor shielded cable, and run in 3" Panduit
ducting, with new double shielded video cable. The original cabling was
run loose over the ceiling tiles, which presented more area to act as
antennas. Since the opening in the Panduit ducting faced the floor, I
used pencils every foot to hold the wires up, until I was ready to
install the covers. I simply slipped them into the open slots, and let
the ducking hold them in place. Once the covers were on, they were
pulled out to make it difficult for anyone to cover up their tampering.

http://www.newark.com/pro-power/wdlt-1212-72/wiring-duct-slotted-pvc-76-2mm/dp/08X6007

A spare 19" aluminum 2U rack panel was drilled for F61 double female
'F' connectors, and used for a bulk grounding plate for the TV antennas
right after they enered the building. That was tied to the 24' ground
rod behind the C-band racks.

After that rebuild, we had no more problems. It had to be done this
way, because we couldn't simply shut down 10,000+ TVs while we made
repairs and did upgrades. I also had to replace the CA3240 CMOS input
Opamps in every modulator, as part of the repairs. I had all 36 channels
working in under 19 hours, which was at noon on a Saturday.


This all happened in 1982.