NMHB 4MM - 1:1 Balun



  • NNHB_4MM

Low Loss Broadband Balun 1:1 with female N-Connector for receive and transmit applications in the VHF frequency range. The main application of the NMHB 4 MM is the immunity test against handheld transmitters according to ISO 11452-9 (Annex C.5) in the frequency range between 142 MHz and 246 MHz with different folded dipole elements FDAI. The radiating elements can be exchanged without any tools by the means of knurled M4 screws.



Usable Frequency Range: 9 kHz - 420 MHz
Nominal Impedance: 50 Ω
Standing Wave Ratio SWR typical: < 2
Max. Input Power: 50 W
Connector: N-female
Symmetrical Terminals: M4
Mount: 22 mm Tube
Length: 212 mm
Width: 75 mm
Height: 28 mm
Weight: 270 g
Recommended Accessories:

FDAI 146 (142-150 MHz)
FDAI 155 (151-161 MHz)
FDAI 165 (162-174 MHz)
FDAI 174 (172-180 MHz)
FDAI 222 (215-246 MHz)
FDAI Spacer 50


Datasheet NMHB 4MM

FDAI assambly instructions