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-   -   End insulators -- purpose? (https://www.radiobanter.com/antenna/2267-end-insulators-purpose.html)

Jack Painter September 1st 04 02:17 PM


"Bob Miller" wrote
I guess it just depends on how often you want to re-hang an antenna.
The antenna wire will certainly cut through the nylon string or cord
far quicker than it will a ceramic or polymer-type dogbone or egg.

Bob
k5qwg


Hi Bob, if there was any tension on the connection that is certainly
correct. I noted that my 8mhz component was so attached - but it only hangs
below the main element, which does use the egg-insulators. There is no
strain on the lower components at all, so the only factor involved is that
there is no noticeable affect from rain, ice etc on a non-insulated
connection there. If those elements disconnected at the ends, I could reach
them from a tall step ladder. Any high connections that would require
antenna lowering to repair should certainly be made with permanence in mind!

73'

Jack



JGBOYLES September 1st 04 11:44 PM

Do I need a dogbone or egg insulator at each end of my dipole, or can
I just splice the antenna wire to the nylon braid that runs to my
trees?


If you use insulated wire for the antenna, just tie the nylon to the wire.
Anymore, insulated wire is all I use for my antennas cause Home Depot doesn't
sell bare wire small enough. I prefer #18-#20 insulated and stranded (not
avail. at HD either). They do have #14.
73 Gary N4AST

Mike Coslo September 6th 04 03:48 PM



Jack Painter wrote:
"Jimmie" wrote


"Ken" wrote in message
. ..

Do I need a dogbone or egg insulator at each end of my dipole, or can
I just splice the antenna wire to the nylon braid that runs to my
trees?

Is the answer different for, say, under 100 watts vs 1,000 watts? HF
vs. VHF?

I would probably put a small nylon thimble in the nylon braid to
provide a decent radius for the wire end.

Ken KC2JDY


I ve done it with 500 watts up to 10 meters, No problems rain or shine.



And thus another radio-myth is dispelled....

I doubt anyone disagrees that insulators which help support the radio
apparatus industry, er, I mean the ends of the dipole, are "proper"
connections. But I'll gladly show pictures to anyone who doubts that the
(8.9 mhz length) 1/4 wave ends of my dipole are operating that way. And
there is indisputable evidence I have operated this way at very long ranges
during icestorms, torrential downpours, and even hurricanes. Never saw a
noticeable variation in the consistent 1.1 to 1 SWR as indicated on the
tuner. So the 30 odd feet of string holding the ends of the 8mhz components
of the dipole are definitely not robbing it or shorting out.


Heck, I just nail the wires to the tree. I use a big screw if I'm
feeling fancy. ;^)


- Mike KB3EIA -


Dave Holford September 7th 04 02:05 AM



Mike Coslo wrote:

Jack Painter wrote:
"Jimmie" wrote


"Ken" wrote in message
. ..

Do I need a dogbone or egg insulator at each end of my dipole, or can
I just splice the antenna wire to the nylon braid that runs to my
trees?

Is the answer different for, say, under 100 watts vs 1,000 watts? HF
vs. VHF?

I would probably put a small nylon thimble in the nylon braid to
provide a decent radius for the wire end.

Ken KC2JDY

I ve done it with 500 watts up to 10 meters, No problems rain or shine.



And thus another radio-myth is dispelled....

I doubt anyone disagrees that insulators which help support the radio
apparatus industry, er, I mean the ends of the dipole, are "proper"
connections. But I'll gladly show pictures to anyone who doubts that the
(8.9 mhz length) 1/4 wave ends of my dipole are operating that way. And
there is indisputable evidence I have operated this way at very long ranges
during icestorms, torrential downpours, and even hurricanes. Never saw a
noticeable variation in the consistent 1.1 to 1 SWR as indicated on the
tuner. So the 30 odd feet of string holding the ends of the 8mhz components
of the dipole are definitely not robbing it or shorting out.


Heck, I just nail the wires to the tree. I use a big screw if I'm
feeling fancy. ;^)

- Mike KB3EIA -


Dave Holford September 7th 04 02:06 AM



Mike Coslo wrote:

Jack Painter wrote:
"Jimmie" wrote


"Ken" wrote in message
. ..

Do I need a dogbone or egg insulator at each end of my dipole, or can
I just splice the antenna wire to the nylon braid that runs to my
trees?

Is the answer different for, say, under 100 watts vs 1,000 watts? HF
vs. VHF?

I would probably put a small nylon thimble in the nylon braid to
provide a decent radius for the wire end.

Ken KC2JDY

I ve done it with 500 watts up to 10 meters, No problems rain or shine.



And thus another radio-myth is dispelled....

I doubt anyone disagrees that insulators which help support the radio
apparatus industry, er, I mean the ends of the dipole, are "proper"
connections. But I'll gladly show pictures to anyone who doubts that the
(8.9 mhz length) 1/4 wave ends of my dipole are operating that way. And
there is indisputable evidence I have operated this way at very long ranges
during icestorms, torrential downpours, and even hurricanes. Never saw a
noticeable variation in the consistent 1.1 to 1 SWR as indicated on the
tuner. So the 30 odd feet of string holding the ends of the 8mhz components
of the dipole are definitely not robbing it or shorting out.


Heck, I just nail the wires to the tree. I use a big screw if I'm
feeling fancy. ;^)

- Mike KB3EIA -



too fast on the mouse!

Just out of curiousity - which airline?

Dave


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