DM H23-1 Antenna Couplers Frequency 108-118 MHz 329-335.3 MHz|Harris (D, M, EDO)

Avionics, Antennas, Couplers, Diplexers : Harris (D&M/EDO)

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DM H23-1 Antenna Couplers
Frequency 108-118 MHz 329-335.3 MHz
(DAI Part# DMH23-1)

These Antenna Couplers are specifically designed to couple multiple receiver systems to a single antenna with a minimum of insertion loss. The couplers are designed to electronically split the received signals equally between the systems. In this manner, a single antenna may feed redundant systems or serve a dual-function role (e.g., Glide Slope and VOR/LOC).

The ruggedly built couplers are housed in aluminum cases with all circuit elements fully encapsulated. General specifications applicable to all couplers are provided in this sheet, while Table 1 indicates the recommended function of the particular type.

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SPECIFICATIONS

Electrical
Frequency Range	118 to 118 MHz 329 to 335.3 MHz
VSWR	<1.5:1
Impedance	50 OHMS
Isolation	VOR/LOC–VOR/LOC > 20dB VOR/LOC from glide slope > 40 dB Glide slope from VOR/LOC > 14 dB
Insertion Loss	Glide slope port DM H22-1 0.5 dB max & DM H23-1 VOR/LOC port, DM H22-1 0.5 dB max VOR/LOC ports, DM H21-1, 3.5 dB maximum including power split DM H23-1 & glide slope Ports DM H24-1
TSO	C34c, C35d, C36d, C40c
Mechanical
Weight	4 oz. maximum