Product Description:
The NMHB 4MM is a low loss broadband 1:1 balun, manufactured by schwarzbeck, Germany and authorized for sale by EUTTEST, Shenzhen, China. The main application is the immunity testing of handheld transmitters using different folded dipole elements FDAI according to ISO 11452-9 (Annex C.5) in the frequency range of 142 MHz to 246 MHz for reception and transmission applications in the VHF frequency range. The NMHB4MM can be connected to a variety of FDAI dipole elements for use in both receiving and transmitting applications in the VHF frequency range, and when antenna elements need to be replaced, the radiating elements can be replaced without tools by manually turning the M4 screw.
Technical parameters：
<<<<提醒：左右滑动表格>>>> | Antenna Baron Model | NMHB 4MM |
| manufacturer | Schwarzbeck |
| agent | EUTTEST |
| impedance | 50 ohms |
| VSWR | <2 |
| Maximum input power | 50W |
| fastener | M4 |
| 22mm antenna pole length | 120 mm |
| size | 75 mm |
| insertion loss | 0.3-0.6dB |
| weight | 270 grams |
| Optional FDAI antenna element | - FDAI 146 (Test frequency 142-150 MHz)
- FDAI 155 (Test frequency 151-161 MHz)
- FDAI 165 (Test frequency 162-174 MHz)
- FDAI 174 (Test Frequency 172-180 MHz)
- FDAI 222 (test frequency 215-246 MHz)
- FDAI Spacer 50
- CCA FDAI
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VSWR data for NMHB 4MM Barron tested with different FDAI antenna combinations
Insertion Loss Curve of NMHB4MM
Service
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