RM BLA-350 Plus Linear Amplifier 300W
Delivery time:
Delivery time:
1-3 Business Days
RM BLA-350 Plus Linear Amplifier 300W is backordered and will ship as soon as it is back in stock.
Are you looking for a powerful, reliable, and easy-to-operate RM amplifier for the HF and 11-meter band? The RM BLA-350 Plus Black Line from RM Italy is developed for radio amateurs and 11-meter users who want to combine maximum performance with ease of use. Thanks to the latest firmware version (July 2026), this RM linear amplifier is immediately suitable for use on the 11-meter band, without modifications or complicated settings.
The RM linear amplifier delivers an output power of up to approximately 300 Watts PEP and uses high-quality SD2941-10 MosFET technology. This ensures stable output power, low distortion, and excellent signal quality. Whether you operate in AM, FM, SSB, CW, or digital modes, this amplifier offers reliable performance across the entire frequency range of 1.5 to 30 MHz.
Why choose the RM BLA-350 Plus?
The RM BLA-350 Plus is designed for users who don't want to waste time tuning or manually switching. The built-in microprocessor automatically selects the correct low-pass filters, while you can also switch manually if desired. The clear LCD display and separate LED indicators provide information about output power, VSWR, and operational status at a glance.
Thanks to intelligent protections against overtemperature, high VSWR, incorrect input power, filter errors, and reverse polarity, you can operate with peace of mind. The quiet forced cooling ensures that the amplifier continues to perform optimally even during longer connections.
Key features
- HF broadband linear amplifier for 1.5-30 MHz and suitable for the 11-meter band
- Output power up to approximately 300 Watts PEP with only 1-12 Watts drive power
- Operates in AM, FM, SSB, CW, and digital modes
- Automatic and manual filter selection
- LCD display, LED indicators, and extensive protections against VSWR, temperature, filter errors, and reverse polarity
Application
The RM BLA-350 Plus Black Line is ideal for radio amateurs and 11-meter users who want more transmitting power without complicated installations. Thanks to its wide frequency range, easy operation, and low harmonic distortion, this linear amplifier is suitable for daily use, DX connections, and contests where reliability and a clean output signal are important.
With a robust metal housing, high-quality components, and the renowned build quality of RM Italy, you are getting an amplifier that will provide reliable performance for years to come.
Technical specifications
The RM BLA-350 Plus operates on 230 Volt AC and supports a frequency range of 1.5 to 30 MHz. The recommended drive power is 1 to 12 Watts, while the maximum output power is approximately 250 to 300 Watts PEP. The amplifier features SO-239 (UHF Female) connectors, an impedance of 50 Ohm, a backlit LCD screen, and an intelligent cooling system. The dimensions are 358 × 270 × 160 mm (14.09 x 10.63 x 6.30 inches) and the weight is approximately 13.8 kilograms.
Important warning
Are you using a non-resonant antenna in combination with a manual or automatic antenna tuner? Always tune the antenna with low power and while the RM BLA-350 Plus is switched off or in standby mode. Only switch on the amplifier once the SWR is a maximum of 1.5:1. Tuning the antenna while the amplifier is operating at full power can lead to very high impedances, which can damage the output stages. Damage caused by improper tuning is generally not covered by the warranty.
Additionally, after each band change, always check the VSWR, avoid hot switching, and never exceed the recommended drive power. Although the RM BLA-350 Plus is equipped with extensive protection circuits, these do not offer complete protection against improper use.
Order the RM BLA-350 Plus Black Line today and experience the performance, reliability, and quality that make RM Italy beloved worldwide among radio amateurs and 11-meter users.
Frequently asked questions
Is the RM BLA-350 Plus suitable for the 11-meter band? Yes. The RM BLA-350 Plus Black Line comes with the latest software version (July 2026) and can be used on the 11-meter band without modifications. This means the amplifier is ready for immediate use.
What output power does the RM BLA-350 Plus deliver? The amplifier delivers a maximum output power of approximately 250 to 300 Watts PEP in AM, FM, and SSB, depending on the drive power used and operating conditions.
What drive power does the RM BLA-350 Plus need? The recommended input powers are between 1 and 12 Watts. By staying within these values, the amplifier performs optimally and you avoid overloading the final stage.
For what frequencies is this RM linear amplifier suitable? The RM BLA-350 Plus supports a frequency range of 1.5 to 30 MHz. This makes it suitable for most HF bands, including 160, 80, 40, 20, 17, 15, 12, and 10 meters, as well as the 11-meter band.
Does the RM BLA-350 Plus need to be tuned? No. This linear amplifier is designed for easy use. No manual tuning is required, and you can switch bands directly. The built-in microprocessor automatically switches to the correct filters.
Can I use an antenna tuner? Yes, but only according to the prescribed procedure. If you are using a non-resonant antenna with an antenna tuner, always tune the antenna with low power while the amplifier is switched off or in standby mode. Only switch on the amplifier when the SWR is a maximum of 1.5:1.
What protections does the RM BLA-350 Plus have? The amplifier features various protection functions, including protection against excessive input power, high VSWR, overheating, filter errors, incorrect frequencies, and reverse polarity. These protections increase reliability but do not replace correct use of the amplifier.
Which transmission modes does the RM BLA-350 Plus support? The RM BLA-350 Plus supports AM, FM, SSB, CW, and digital modes. This makes it suitable for various applications within HF and 11-meter communication.
What connections does the amplifier have? The amplifier is equipped with SO-239 (UHF Female) connectors for both input and output. This makes it easy to connect to most HF transceivers and antenna systems.
Is the RM BLA-350 Plus equipped with cooling? Yes. The amplifier has a forced cooling system that keeps the temperature under control during prolonged use. This ensures stable performance, even under higher load.
What is included? With the RM BLA-350 Plus you receive: The RM BLA-350 Plus Black Line amplifier equipped with the latest firmware, a 230V power cable, and a manual in English and Italian.
Who is the RM BLA-350 Plus suitable for? This RM amplifier is ideal for radio amateurs and 11-meter band users who are looking for a powerful, reliable, and easy-to-operate linear amplifier with a clean output signal and extensive protection features.
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