nuckolls.bob(at)aeroelect
Guest
|
 Posted: Thu May 08, 2014 4:58 am Post subject: FYI - LMR195 coax |
 |
|
I installed a new antenna on the roof yesterday
and wired it to the radio with LMR195 coax. While
this stuff has appealing performance specs, it is
NOT a drop-in-replacement for the legacy coaxes
that feature one or more braided outer conductors.
[img]cid:.0[/img]
Unlike the RG142 illustrated above I found that the
braid wires on this coax are very small and few. The
coax's shield performance is bounded by the foil shield.
The outer braid is just a means by which connection can be made to
the foil and is relatively fragile compared to the
two heavy layers of braid in RG142/400
The installer must take extra care in the 3rd cut and
removal of the outer jacket so as not to damage
the braid.
Further, the 2nd cut designed to remove the shield
from a stub of center insulation is problematic.
Again, depth of cut and subsequent removal of the
foil shield (tightly bonded to the insulation)
is tricky.
I got my connectors installed and the feed line performs
as expected . . . but I would caution builders to work
with some scraps of this coax and some 'training
connectors' to refine their technique. I'll put
LMR195 coax termination on the list of comic books to be
crafted for the website.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
| Description: |
|
| Filesize: |
99.25 KB |
| Viewed: |
930 Time(s) |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
