RM KL405V 180W HF Linear Amplifier front view – Radioworld UK
RM KL405V 180W HF Linear Amplifier front view – Radioworld UK
RM KL405V amplifier with built-in preamp – Radioworld UK
RM KL405V 3.6–30 MHz CB and HF radio amplifier – Radioworld UK
Compact RM KL405V mobile amplifier with cooling fan – Radioworld UK
RM KL405V high power HF amplifier for amateur radio – Radioworld UK
Click the image to enlarge
RM KL405V 180W HF Linear Amplifier front view – Radioworld UK
RM KL405V amplifier with built-in preamp – Radioworld UK
RM KL405V 3.6–30 MHz CB and HF radio amplifier – Radioworld UK
Compact RM KL405V mobile amplifier with cooling fan – Radioworld UK
RM KL405V high power HF amplifier for amateur radio – Radioworld UK

RM Amplifiers – Italian Linear Amplifiers for CB & Ham Radio

RM KL405V 180W HF Linear Amplifier with Preamp – 3.6–30 MHz

£0.00
(£0.00 exc. VAT)
£269.95
(£224.96 exc. VAT)
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Product code: 23-222
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£269.95
12 Months 14.9% APR
£27.00
£23.26
£306.15
£269.95
18 Months 14.9% APR
£27.00
£15.51
£306.15
£269.95
24 Months 14.9% APR
£27.00
£11.63
£306.15
£269.95
36 Months 14.9% APR
£27.00
£7.75
£306.15
£269.95
48 Months 14.9% APR
£27.00
£5.82
£306.15
£269.95
12 Months 19.5% APR
£27.00
£24.19
£317.33
£269.95
18 Months 19.5% APR
£27.00
£16.13
£317.33
£269.95
24 Months 19.5% APR
£27.00
£12.10
£317.33
£269.95
36 Months 19.5% APR
£27.00
£8.06
£317.33
£269.95
48 Months 19.5% APR
£27.00
£6.05
£317.33

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RM KL405V 180W HF Linear Amplifier front view – Radioworld UK

RM KL405V 180W HF Linear Amplifier with Preamp – 3.6–30 MHz


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 RM KL405V Linear Amplifier – 180W with Built-In Preamp (3.6–30 MHz)

The RM KL405V is a high-performance 12V broadband linear amplifier designed for use across the HF spectrum, including the 10m amateur band. With variable output power and a switchable 26dB preamplifier, it’s perfect for boosting weak signals and enhancing transmission clarity.

Key Features

  • Frequency Range: 3.6–30 MHz

  • Modes Supported: AM, FM, SSB, CW

  • Input Power: 1–10W

  • Output Power: Up to 180W

  • Power Supply: 12–14V DC

  • Current Draw: 14–22A

  • Preamplifier Gain: 26dB (switchable)

  • Power Selector: 6-stage front panel control

  • Protection: 2 × 12A fuses, polarity inversion safeguard


Dimensions & Build

  • Size: 170mm × 210mm × 62mm

  • Weight: 980g

  • Cooling: V version includes an integrated fan for thermal stability

  • Design: Compact metal chassis with intuitive controls

Whether you're operating a mobile or a base station, the KL405V delivers clean, powerful amplification with low distortion and reliable performance. It's built-in preamp ensures improved reception in challenging conditions, making it a favourite among HF operators.

You can find it on Radioworld UK’s product page. 

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