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SUMMARY SECTION:
The purpose of combining the antenna with this adapter is to
protect the MMCX jack on an Cisco,
Senao / Engenius (and other) wireless card, against wear
and damage. See list of
compatible cards.
Cisco and Senao / Engenius (and other) wireless cards have an "MMCX" antenna jack which fits an
MMCX connector,
such as the MMCX connector on this adapter. MMCX jacks and connectors are vulnerable to
damage, because of their small size, and so they need protection.
Every time the 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.
Any amount of pulling or tugging at a cable with an MMCX connector
will cause damage to the jack and to the connector.
An MMCX connector
will
actually break after a lot of plugging in, pulling out, and the strain
from the cable
being tugged in day to day use.
The MMCX to RP-SMA adapter may be permanently attached to the
wireless card, by use of Velcro, silicon bonding cement, or a
cable tie. You can then attach the
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 Cisco and Senao / Engenius card's jack.
The RP-SMA connector is about 5x larger than
an 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.
*
Extension cable can be added or
removed from the assembly, as needed
Extension cables available: 1 to 6 meters in
my
e-store.
The
cable of this antenna and 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.
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