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SMC and Zcomax wireless cards have an "RP-MMCX" antenna jack which fits an
RP-MMCX connector,
such as the RP-MMCX connector on this adapter.
Some other brands have RP-MMCX jacks -
see compatibility list.
RP-MMCX jacks and connectors are vulnerable to
damage, because of their miniature size: Every time the
RP-MMCX connector is removed from the jack, or plugged into
the jack, a small
amount of damage is caused to the jack and to the connector.
Pulling or tugging at a cable with an RP-MMCX connector can cause damage to the jack and to the connector.
An RP-MMCX connector may
actually break after a lot of plugging in, pulling out, and the strain
from the cable
being tugged in day to day use.
A primary purpose of this adapter is to preserve the RP-MMCX jack on
the wireless card. This adapter may be permanently
attached to the wireless card, by use of
Velcro
strips & "coins" (available in our e-store), silicon bonding
cement, or a cable tie. You can then attach an
antenna with an RP-SMA (female) connector - and you can
remove and attach this connector as often as you wish without
causing any damage. Pulling & tugging on the cable,
as occurs with ordinary usage, will no longer threaten or ruin
your wireless card's jack.
The RP-SMA connector is about 5x larger than
an RP-MMCX connector (1 CM vs. 2mm, respectively). Further, the RP-SMA
connector is threaded so that it has much, much higher resiliency against wear.
Other benefits:
* Much less loss of gain with the RP-SMA because of the
threaded
connection and the lack of wear.
* An
extension cable can be added
and removed as needed (RP-SMA male to RP-SMA female)
The
cable of this adapter is LMR100A, which is low-loss cable of much
higher quality than the black pigtail cables, which are
RG174. LMR100A
is about 5x
the cost
and quality of
RG174. The higher
quality of the cable of this antenna translates into lower
loss/better performance.
Gender changer to RP-SMA male |
