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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
23/09/2025
14/09/2025
Spot on with everything needed good
13/09/2025
Very good service
05/09/2025
Hi service was good but i think you should have the brackets hot dip galvanised and charge a bit more for them because paint does not last very long these days other than that sturday bracket
03/09/2025
There was an issue with delivery - the couriers lost my 10 foot mast pole! However, I cannot fault Blake in their attempts to put things right. They immediately sent out another pole as a replacement, which has just been received. Things in life can always go wrong. It is how a company responds to problems which show if they are a good company. Blake - you certainly showed that you are customer focussed. If I ever decide to put another weather station on the side of my house, you will be the first port of call for the needed equipment.
Google Company Reviews
19/09/2025
Fast delivery and very good quality products
25/08/2025
Very good quality aerial, well packed and fast shipping. All received OK, many thanks.
14/08/2025
09/08/2025
I ordered a 1 in 2 out Hdmi switch but it was out of stock and rather than getting me to wait until it was in stock Blake UK sent a more expensive 1 in 4 out Hdmi switch at no extra charge. It was also delivered very quickly. I would there rate Blake UK ver highly - hence the 5 stars.
22/07/2025
TV aerial bought from Blake was excellent quality at a reasonable price after asking a relative in the industry who he’d recommend. Website was easy to use and offered the facility to find the aerial type (K) for my postcode, the nearest transmitter and its heading from my property. Aerial itself is lightweight yet robust and picture quality is superb. Instructions are good. Can’t see how this aerial will suffer from water ingress like my cheap previous aerial. Do it right do it once! Would highly recommend.
Payment methods accepted
All good