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AV-571 Antenna Coupler
Frequency 108-118 MHz 329-333 MHz
(DAI Part# AV571)
The AV-571 coupler splits the signal from a VOR-Type antenna to feed two NAV and one Glideslope receivers. The coupler's construction is similar to the AV-547 and AV-570 couplers and operates to the same altitude as both.
Similar Items
AV571U - RAMI 2 VOR 1 GS SPLITTER
CI505 - COMANT DIPLEXER 2 VOR/1 GS
DMH23-1 - D&M COUPLER 2/VOR 1/GS BNC

SPECIFICATIONS
Application Nav & Glideslope
Frequency 108 to 118 MHz
& 329-333 MHz
Filtering 30dB min/40dB average
Insertion loss 3.75 dB max
Isolation 22 dB Min./35 dB Avg.
Impedance 50 OHMS
Weight 3.5 oz.
Connector Type (4) BNC (female)
RF Power Capability Receive only
Dimensions 2" x 1-3/4" x 1-1/8"
Environmental Category D2-BCSXXXXFXXXXXXXXXXX
TSO C34e, C36e, C40c, DO-160c
R.A. Miller
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