Two DEM Transverters. The 6m and 2m versions using 28Mhz IF. Excellent condition and can send pics if you wish. $275 each or both for $500. Also have a switch box to switch between 4 transverters with relays for better isolation. $120 Item plus shipping in CONUS only. Call Greg at 360-679-8435 ab7r at direcway.com