Dorne & Margolin has designed a series of high isolation, very low power loss antenna hybrid couplers to provide multiple system operation from one antenna. For proper system operation, we recommend using only system-tested Dorne & Margolin couplers along with our antennas.
 

108 - 118 and 329 - 335.3 MHz Frequency Band
Dual VOR and single G.S. Permits operation of two NAV and one glide slope receiver from one VOR/LOC antenna.
VSWR: 1.5:1
WEIGHT: 0.25 lbs.
P/N: DM H23-1