Is this item easy to swr in?

No swr needed however it can be high if near certain objects , mines just under 2 works canny

How do you SWR this antenna ?

You don’t it works against precise coax length

On a good day I managed to get to Spain Germany and Poland but conditions have to be right

I'm new to this so apologies if this is obvious, does this antenna require ground plane?

I've never had ground plane on mine and there hasn't been any problems

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

المساعدة تتبع الطلب

الحساب عربة التسوق

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

المساعدة تتبع الطلب

الحساب عربة التسوق

SIRIO antenne THUNDER 27, Fixed CB Antenna 1/4 λ Helical Loaded Dipole, Frequency 25-29MHz Pretarated, Independent of Ground Plane, Gain 2.15 dBi, Maximum Power 300 Watts (CW) Short Time, A

Product ID: 194298955

Details

Antenna
Radio
Brand
SIRIO antenne
Colour
Global Trade Identification Number
Impedance
50 Ohms
Manufacturer
Sirio Antenne

⚡300W Short-Time Max Power

📡1/4 λ Helical Loaded Dipole

📶25-29 MHz Wide Bandwidth

₪389

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📡 Thunder your signal with unmatched clarity and power!

EFFORTLESS SETUP - No calibration needed—plug and play for instant connectivity.
ROBUST RELIABLE - Stainless steel and galvanized steel build for long-lasting durability.
COMPACT POWERHOUSE - Helical loaded design fits tight spaces without sacrificing signal strength.
HIGH POWER HANDLING - Supports up to 300W short bursts—perfect for demanding CB communication.
OMNIDIRECTIONAL REACH - 360° vertical polarization ensures you never miss a signal.

The SIRIO THUNDER 27 is a fixed 1/4 λ helical loaded CB antenna operating in the 25-29 MHz band, delivering up to 2.15 dBi gain with omnidirectional vertical polarization. Designed for easy installation without calibration, it supports continuous 100W and short-time 300W power handling, making it ideal for both temporary and space-constrained setups. Built with premium materials, it ensures durability and reliable performance for serious CB users.

Specifications

ASIN	B07JW14HWN
Antenna	Radio
AntennaDescription	Radio
Best Sellers Rank	19,995 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 35 in Radio Antennas
Brand	SIRIO antenne
Brand Name	SIRIO antenne
Colour	Black/Aluminium
Customer Reviews	3.8 out of 5 stars 226 Reviews
Global Trade Identification Number	08056182110176
Impedance	50 Ohms
Item Type Name	Fixed Cb Antenna
Item Weight	0.7 Kilograms
Manufacturer	Sirio Antenne
Manufacturer Part Number	THUNDER 27
Maximum Range	0.32 Metres
Maximum range	0.32 Metres
Model Number	2107902.00
Number of Channels	1
Number of Items	1
Number of channels	1
Unit Count	1.0 count

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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₪389

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Israel.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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