|
Cisco and Senao / Engenius wireless cards have an "MMCX" antenna jack which fits an MMCX connector, such as the MMCX connector on this adapter. Several other brands have MMCX jacks - see compatibility list.
MMCX jacks and connectors are vulnerable to damage, because of their miniature size: 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. Pulling or tugging at a cable with an MMCX connector can cause damage to the jack and to the connector. An 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 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 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.
|
