[Skimmertalk] CW Skimmer + RTTY Skimmer running simultaneously on Red Pitaya - Success!

[Lee Sawkins]

Here is an inexpensive pre amp that may be ok for a Red Pitaya.  It might need a simple band-pass filter as it is very broadband.
http://www.ebay.com/itm/Wideband-Low-Noise-Amplifier-LNA-SDR-RTL-preamplifier-HF-VHF-UHF-Receiver/Lee VE7CC