Construction Coordinator
1. Why are pin-type hardline connectors the pre- Over the years, intermit-
ferred type of connector for attaching hardline tent operation, low-fre-
coaxial cable to equipment housings in today's quency roll-off, and
networks? common path dis- tortion
(CPD) issues have been
attributed
to feed-through connec-
tors.
2. What type of adapter is used for permanent or Pin-to-F female
temporary jumper installation in place of adapters.
damaged hardline coaxial cable or equipment
hookup?
3. What should be worn when cutting and prepar- ing Leather work gloves.
hardline coaxial cable for connector attach-ment?
4. How should a knife be used when preparing
hardline coaxial cable for connector attach- To score the aluminum
ment? shield that must be bro-
ken and then removed.
5. What is a consequence of cutting hardline coax- ial
cable with conventional side cutters? The end of the ca-
ble is crushed and de-
formed, which makes
coring the dielectric and
sliding connector parts
onto the cable difficult.
6. When using a single-purpose coring tool, whatis
done before the coring tool can be used to cutand The appropriate length of
remove the dielectric? aluminum shield and
dielectric must be re-
moved, to expose the ca-ble
center conductor.
7. If the hardline coaxial cable center conductor is too
short after coring the dielectric with a combination Clean out any dielectric
coring tool, what should be done? and aluminum trimmings
from the cable and the
, Construction Coordinator
tool and continue coringto
the correct depth.
8. What is different about preparing QR hardline QR cable is first cored and
coaxial cable for connector installation com- pared the aluminum shieldis
to all other types? stripped before the
polyethylene jacket is re-
moved to the proper
length, the reverse of other
cable types.
9. What can be said about a straight splice connec-tor? It is essentially two hard-
line connectors with a
common interface.
10. How far beyond a pin connector should the
shrink tubing overlap the coaxial cable? At least eight inches after
shrinking.
11. How can signal leaks (egress) from hardline
coaxial cable occur? Through cracks in the
shield where the cable is
bent, or tiny holes in the
shield.
12. What is the return loss in coaxial cable? The difference in deci-
bels (dB) between the
signal power applied to a
terminated cable and the
reflected signal power.
13. What happens when there is an impedance mis- Some signal energy is
match between the coaxial cable and the load? transferred to the load,
with the remainder re-
flected along the coaxial
cable back to the source.
14. What is the attenuation through 1,600-feet of 0.750 22.05 dB.
cable at 600 MHz and 120° F, when at 68° F and 600
MHz the cable attenuation rate is 1.31decibels
(dB)/100 feet? (Be sure to factor in thehigher
temperature.)
1. Why are pin-type hardline connectors the pre- Over the years, intermit-
ferred type of connector for attaching hardline tent operation, low-fre-
coaxial cable to equipment housings in today's quency roll-off, and
networks? common path dis- tortion
(CPD) issues have been
attributed
to feed-through connec-
tors.
2. What type of adapter is used for permanent or Pin-to-F female
temporary jumper installation in place of adapters.
damaged hardline coaxial cable or equipment
hookup?
3. What should be worn when cutting and prepar- ing Leather work gloves.
hardline coaxial cable for connector attach-ment?
4. How should a knife be used when preparing
hardline coaxial cable for connector attach- To score the aluminum
ment? shield that must be bro-
ken and then removed.
5. What is a consequence of cutting hardline coax- ial
cable with conventional side cutters? The end of the ca-
ble is crushed and de-
formed, which makes
coring the dielectric and
sliding connector parts
onto the cable difficult.
6. When using a single-purpose coring tool, whatis
done before the coring tool can be used to cutand The appropriate length of
remove the dielectric? aluminum shield and
dielectric must be re-
moved, to expose the ca-ble
center conductor.
7. If the hardline coaxial cable center conductor is too
short after coring the dielectric with a combination Clean out any dielectric
coring tool, what should be done? and aluminum trimmings
from the cable and the
, Construction Coordinator
tool and continue coringto
the correct depth.
8. What is different about preparing QR hardline QR cable is first cored and
coaxial cable for connector installation com- pared the aluminum shieldis
to all other types? stripped before the
polyethylene jacket is re-
moved to the proper
length, the reverse of other
cable types.
9. What can be said about a straight splice connec-tor? It is essentially two hard-
line connectors with a
common interface.
10. How far beyond a pin connector should the
shrink tubing overlap the coaxial cable? At least eight inches after
shrinking.
11. How can signal leaks (egress) from hardline
coaxial cable occur? Through cracks in the
shield where the cable is
bent, or tiny holes in the
shield.
12. What is the return loss in coaxial cable? The difference in deci-
bels (dB) between the
signal power applied to a
terminated cable and the
reflected signal power.
13. What happens when there is an impedance mis- Some signal energy is
match between the coaxial cable and the load? transferred to the load,
with the remainder re-
flected along the coaxial
cable back to the source.
14. What is the attenuation through 1,600-feet of 0.750 22.05 dB.
cable at 600 MHz and 120° F, when at 68° F and 600
MHz the cable attenuation rate is 1.31decibels
(dB)/100 feet? (Be sure to factor in thehigher
temperature.)
