RTL-SDR Blog SMA Male to SMA M, BNC F, Type N F, Type F F, UHF F, PAL F RG316 20cm Pigtail Adapters Kit

Be prepared for any connection with this kit of five SMA adapters. Converts SMA male to various female straight connectors. Perfect for use with RTL-SDR or other SDR dongles with SMA Female antenna ports. Including BNC F, Type N F, Type F F, UHF F and PAL F. Also includes a 6th bonus SMA M adapter that is perfect for connecting to devices such as upconverters and LNAs. This bundle contains 6 20 cm pigtail adapters with high quality 50 Ohm RG316 cabling. The RG316 has approximately 0.56 dB/m attenuation at 400 MHz, 0.91 dB/m attenuation at 1 GHz and 1.62 dB/m at 3 GHz.

So for the 20 cm cable length you will only experience less than 0.2 dB of cable loss at 1 GHz. Please note that the SMA connectors are NOT RP-SMA, they are standard SMA and as such they will not work with WiFi antennas.