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Internal 433MHz Omni Directional Antenna
Product Code: BLA-433-OMNI
- Helical omni-directional antenna
- Frequency 400-438MHz
- For medical aids, PMSE, amateur radio
Payment methods accepted
Product Description
BLA-433-OMNI Helical Omni-Directional Antenna
The BLA-433-OMNI is a high-performance helical omni-directional antenna designed to meet the diverse needs of various applications. It offers reliable wireless connectivity and exceptional performance within the frequency band.
Applications:
- Medical Wireless Monitoring applications
- Meteorological Aids
- Services for Program Making and Special Events (PMSE)
- Business Radio
- Model Control
- Amateur Radio low power applications
Features:
- Type: Helical Omni-Directional Antenna
- Frequency: 400-438 MHz
- Mounting: Internal Wall or Ceiling
- Impedance: 50Ω
- Handling Power: 5w
- Polarisation: Vertical or Horizontal (dependent on mounting method)
- Connection: 3m LMR200 with SMA-M termination
- Gain: 3-5dBi
- Isolation: >24dB
- Horizontal Beamwidth (-3dB): 360°
- Vertical Beamwidth (-3dB): 85-35°
- VSWR: ≤1.8
- Weight: 0.5Kg
- Dimensions: 250mmx140mm
- Cover: Acrylonitrile butadiene styrene
Technical Specifications:
| Type | Helical Omni-Directional Antenna |
| Frequency | 400-438 MHz |
| Mounting | Internal Wall or Ceiling |
| Impedance | 50Ω |
| Handling Power | 5w |
| Polarisation | Vertical or Horizontal (dependent on mounting method) |
| Connection | 3m LMR200 with SMA-M termination |
| Gain | 3-5dBi |
| Isolation | >24dB |
| Horizontal Beamwidth (-3dB) | 360° |
| Vertical Beamwidth (-3dB) | 85-35° |
| VSWR | ≤1.8 |
| Weight | 0.5Kg |
| Dimensions | 250mmx140mm |
| Cover | Acrylonitrile butadiene styrene |
Technical Specification
Width
150mm
Depth
150mm
Height
150mm
Weight
0.42kg
02/03/2026
25/02/2026
Only complaint poor parcel parking of items , surprised had not lost anything in transit
08/02/2026
Great product range, rapid attention to order and fast delivery. What more does one need!
01/02/2026
Great tech support lead to an order which was prepared for dispatch within an hour and was delivered with impressive speed.
31/01/2026
Very easy to order online, good value, excellent communications, fast delivery, and very professional service.
Google Company Reviews
03/06/2026
Friendly staff sorted out my payment problem.
31/05/2026
I bought a 4-way distribution amplifier to replace an old one made by another company. Ordering and delivery went as planned. The amplifier is a solid piece of kit, built to last. Easy to fit. Works well. Nice one !
22/05/2026
Ordered a part that i couldnt find anywhere else, it arrived on time and was exactly what i needed. Cheers blake 👍🏽👍🏽👍🏽
22/05/2026
Can’t fault it. Great service from a family-run business. Will definitely buy again.
20/05/2026
A very good service and very prompt delivery.. excellent customer customer service
Payment methods accepted
I was pleased with the price and items received however the experience was somewhat marred by DX Couriers. Expecting 2 items in the shipment they only delivered 1 and tracking confirmed 1 of 2 scanned onto delivery vehicle. When I contacted DX they confirmed the second parcel was still in Sheffield at the collection depot. This meant I had to wait in a second day for the rest of the order to arrive.