DM N4-7

Increased VOR/LOC range and minimized bearing errors can be achieved with any airborne VOR receiver through the use of these DM N4-7 and DM N4-8.
Each DM N4 system utilizes two center-fed, half-loops and a cable harness, enabling "closed loop" current flow. This provides better signal-to-noise ratios and higher rejection of cross-polarized signals. In terms of system performance, this means that smaller signals can ve received and bearing errors, particularly those induced by banking, are greatly reduced.
These rugged antennas have been selected and service proven on such aircraft as the Lockheed Jet-star, P-3A, and C-141 Starlifter, Bell UH1B helicopter, sikorsky H34 helicopter, Convair 340, Aero Commander, North American Sabreliner, Douglas DC-3, Beech King Air and many other corporate and commercial aircraft.

Electrical
Frequenc y Range	108 - 122 MHz
VSWR	Less than 5.0 to 1
Polarization	Horizontal
Gain (Rel to Isotropic)	0 +/- 2 dB
Impedance	52 Ohms
Efficiency	95%
Mechanical
Weight	4.2 lbs
Military	MIL-E-5400 MIL-T-5422 MIL-F-17555 MIL-T-18303 MIL-T-18307
FAA	TSO-C40a
Connector	BNC

Product Reviews