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• Circularly polarised 470–850MHz active antenna.
• -9 to +18dB adjustable amplifier with <0.75dB noise figure.
• Cardioid directivity, 5–20V coax power and multiple mounting options.
Need help choosing?
Choose CPAA-18 when transmitter orientation changes frequently or the RF path contains reflections. Choose SHARKIE for a lighter linear-polarized directional antenna.
The CPAA-18 is a 470–850MHz circularly polarised active receiver antenna with -9 to +18dB variable gain and an ultra-low-noise amplifier.
Circular polarization reduces sensitivity to transmitter antenna orientation and can improve reception in reflective environments. Strong filtering, weather-resistant construction and flexible mounting suit larger wireless deployments.
Choosing your type
Choose CPAA-18 when transmitter orientation changes frequently or the RF path contains reflections. Choose SHARKIE for a lighter linear-polarized directional antenna.
Specifications
Band
470–850MHz
Type
Active circular-polarized
Gain
7.5dB avg / 8.5dB peak
Pattern
Cardioid
Polarization
Circular
Amplifier Gain
-9 to +18dB
Noise Figure
<0.75dB
OIP3
>34dBm
Power
5–20V via coax
Current
35mA
Mount
1/4in / 3/8in + 4x M4
Dimensions
315 x 315 x 110mm
Weight
1.4kg
Compatibility
• Professional UHF diversity receivers and RF distribution covering 470–850MHz
• BETSO RF OCTOPUS / En2 HEXAPACK
• 1/4in / 3/8in stands and compatible permanent mounts
Dimensions
Band
470–850MHz
Polarization
Circular
Gain
-9 to +18dB
Noise
<0.75dB
Weight
1.4kg
What’s in the box?
• 1x BETSO CPAA-18 Active Antenna
Delivery & Returns
UK standard delivery costs £4.50, with free standard delivery on UK orders over £250. Next Working Day delivery is available on eligible in-stock orders under 30kg placed before 1pm. Worldwide shipping is also available.
Consumers can return most unwanted products within 30 days of receiving them, subject to our return conditions and exclusions. Please see our Shipping Policy and Returns & Refunds Policy for full details.
Warranty
This product includes a 1-year Betso manufacturer warranty against defects in materials and workmanship under normal use.
For help with a fault or warranty claim, please visit our Returns & Warranty page and fill out the warranty form.
Soundkit will then help handle the warranty process with Betso on your behalf.
This manufacturer warranty does not cover misuse, accidental damage, unauthorised modification, improper storage, incorrect operation or normal wear-and-tear items such as cables and accessories.
This manufacturer warranty is in addition to your statutory rights.
Important Notes
• Requires 5–20V DC antenna power through coax.
• Circular polarization does not replace correct RF planning.
• Set gain to suit cable loss and receiver headroom.
• Optional CPAA-18 pouch sold separately.
• BETSO products carry a 1-year warranty.
BETSO CPAA-18 Circularly Polarised Active Antenna
£642.82
Any questions?
Find quick answers about delivery, returns and international shipping before you order.
We accept major credit and debit cards, PayPal and a range of express payment options, including Apple Pay, Google Pay and Shop Pay. The payment methods available to you will be shown at checkout.
How can I track my order?
Once your order has been dispatched, we will email you a shipping confirmation with your tracking details. You can follow the tracking link in that email or view updates through your Shopify order-status page.
What is your return policy?
Consumers can return most unwanted products within 30 days of receiving them, provided they meet our return conditions. Some products are excluded, and business purchases are not eligible for change-of-mind returns unless agreed by Soundkit. Faulty, damaged or incorrect products are handled separately. Please see our Returns & Refunds page for full details.
Can I change or cancel my order?
Please contact us as soon as possible if you need to change or cancel an order. We will do our best to help, but changes cannot normally be made once an order has been processed or dispatched. If it has already been dispatched, you may need to return it in accordance with our Returns & Refunds policy.
Do you ship internationally?
Yes, worldwide shipping is available to many destinations. Available services, delivery costs and estimated times will be shown at checkout. International orders may also be subject to local customs duties, taxes and import fees.
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