HP Hewlett Packard 775D Dual Directional Coupler 450-940 MHZ

Comba 8dB Directional Coupler 340-2700MHz -161dBc (DC-FR08-OMD300CI)

Narda Model 4242-20 0.5-2.0 GHz

Narda 10-dB Directional Coupler, 225 MHz - 460 MHz, 3000-10

Comba 10dB Directional Coupler 340-2700MHz -161dBc (DC-FR08-OMD300CI)

Lot of 2 HP 775D Dual Directional Coupler 450-940 MC @ D16

FIPLEX RSA2-B2J 400?520 MHZ DIRECTIONAL COUPLER T268390

Agilent 797D Directional Coupler 19.7 DB