Siretta Delta 9

whip tuned to 433MHz via its SMA male connector

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Key Features
  • ½ wave antenna
  • Overmoulded design
  • Wide frequency range
  • Tolerant to 35W
  • RoHS compliant
Buy Online
Part Number Weight Pack Qty Code Price (Ex VAT) Stock
Delta 9 DELTA9/X/SMAM/S/S/4
50g 1 32519 1+ £23.05 No
5+ £14.98
10+ £12.68
25+ £11.53

Place your order before 2pm to select next day delivery. In a hurry? pre 10:30am delivery also available.


The Delta 9 is a direct connect 1/2 wave whip antenna measuring 235mm in length. It is a 1/2 wave, helically wound, omni-directional antenna dedicated to 433MHz, with a tough, black over-mould. With a centre frequency of 433MHz, this antenna resonates on 433MHz that is far more focused than wide band antennas, such as a quad band GSM antenna, providing far superior performance. This does however mean that the Delta 9 is limited to 433MHz only application

433MHz resides within the Industrial, Scientific and Medical (ISM) band. Common applications for ISM antennas are low power short range applications such as: wireless sensory monitoring, street light control, smart metering and security systems, just to name a few.


Key Specifications - Electrical

Temperature range: -40 to +85°C
Impedance: 50 ohm
VSWR: <1.5:1
Operating frequencies: 428 - 438MHz
Polarization: Vertical
Radiating element: ½ wave whip

Key Specifications - Mechanical

Dimensions: Length - 235/260mm (depending on connector used), Diameter - 13.4mm
Connector: SMA, TNC, BNC
Mounting method: Direct connect
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