"N" connector
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"N" connector
How much loss can you expect at 927 Mhz by using a "N" type barrel to splice two lengths of 7/8" hard line?
Dennis
Hello:
The use of the "7/8" Spice would be "Highly Recommended"
and the reasons are pretty clear.
1. 7/8" cable can be hard to deal with, and if you spliced
a 50 foot along with another 50 foot cable, you would find
horrible stress would be placed on the small type end barrel
connector. !
The Spice is the ideal way since it can handle the stress
of the cable, AND most come with a "Water-Proof" Sleave
and that will protect the connections.
Monty
The use of the "7/8" Spice would be "Highly Recommended"
and the reasons are pretty clear.
1. 7/8" cable can be hard to deal with, and if you spliced
a 50 foot along with another 50 foot cable, you would find
horrible stress would be placed on the small type end barrel
connector. !
The Spice is the ideal way since it can handle the stress
of the cable, AND most come with a "Water-Proof" Sleave
and that will protect the connections.
Monty
-
Mike in CT
- Posts: 282
- Joined: Thu May 09, 2002 9:37 am
N barrel
the "N barrel" would probably fail (mechanically) due to the stresses on it.
One slight bend in the cable on installation, and the connector will snap.
Most commercial tower sites forbid the use of barrels, and if a splice IS necessary, the use of a standard hardline splice is accepted. (L45Z)
even on 927 the RF loss involved is inconsequential compared to the mechanical issues.
You MIGHT be able to scrounge a 7/8 splice from your local friendly tower
company if its for ham radio... might cost a case or two.
welcome to 927!! great band!!
73!
Mike KM1R
One slight bend in the cable on installation, and the connector will snap.
Most commercial tower sites forbid the use of barrels, and if a splice IS necessary, the use of a standard hardline splice is accepted. (L45Z)
even on 927 the RF loss involved is inconsequential compared to the mechanical issues.
You MIGHT be able to scrounge a 7/8 splice from your local friendly tower
company if its for ham radio... might cost a case or two.
welcome to 927!! great band!!
73!
Mike KM1R
Hello:
Another option you have if desired, and we have
done this a few times,
Due to a design flaw ( them not listening to our concerns )
a Piece of 7/8 cable can be connected to gether with a
Jumper of 1/2' Cable.
We had to do a few of these since the 7/8 could not
make the [ bend ] and the lenght of the cable was around
165 feet, but the last 45 feet was required to keep the loss
at a minimum, and still was required to go around a tight
corner......
So, we made a 3 foot jumper from the Main source line
to the secondary line.
If you needs are just a stright run ( as with a tower ) either
get a piece of cable the desired lenght, or use the appropriate
7/8 Splice ( and DO NOT forget the Weather / Water Proof Sleeve.
Otherwise, you may be replacing the cable again in 3 ~ 5 years.
PS:
Not all these Cable Splices are the same ! so get the proper
one for the age & type of cable you have.
Monty
Another option you have if desired, and we have
done this a few times,
Due to a design flaw ( them not listening to our concerns )
a Piece of 7/8 cable can be connected to gether with a
Jumper of 1/2' Cable.
We had to do a few of these since the 7/8 could not
make the [ bend ] and the lenght of the cable was around
165 feet, but the last 45 feet was required to keep the loss
at a minimum, and still was required to go around a tight
corner......
So, we made a 3 foot jumper from the Main source line
to the secondary line.
If you needs are just a stright run ( as with a tower ) either
get a piece of cable the desired lenght, or use the appropriate
7/8 Splice ( and DO NOT forget the Weather / Water Proof Sleeve.
Otherwise, you may be replacing the cable again in 3 ~ 5 years.
PS:
Not all these Cable Splices are the same ! so get the proper
one for the age & type of cable you have.
Monty