DIFFERENCE BETWEEN SMA AND RP-SMA
The SMA-male has center pin.
The reverse SMA (RP-SMA) male does NOT have a center pin, it has a hole.
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TEMPORARY WORKAROUND
The SMA-male has center pin. The reverse SMA (RP-SMA) male does not have a center pin, it has a hole. The center wire connection is open because of missing pin. A temporary workaround is to cut a short piece of center wire of coax and insert in hole of RP-SMA male. This piece of wire will act as the missing pin, and connection will be established.
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