The CRF-PA-400M440M-100W is a narrowband UHF RF amplifier model that deserves a separate article because it is not another broad 30-512 MHz or 300-2700 MHz selection guide. CorelixRF lists it on the narrowband amplifier page as a 400-440 MHz, 100 W model with 48 dB typical gain and a 160 x 120 x 25 mm size class.
The page also lists M / V source or control versions for the 400-440 MHz family.
For engineers working with dedicated UHF channels, this kind of narrowband model can be more appropriate than a very wide broadband amplifier. The reason is simple: if the application stays inside 400-440 MHz, a focused design can be reviewed around that specific channel range rather than paying for bandwidth the system will not use.
Why Choose Narrowband Instead of Broadband?
Broadband amplifiers are useful when a system must move across wide frequency ranges. Narrowband amplifiers are useful when the operating band is already known and stable. In a dedicated UHF communication, test, or OEM integration project, a 400-440 MHz amplifier can be reviewed for the actual channel plan, duty cycle, gain target, and thermal condition.
CorelixRF’s UHF and narrowband capability messaging emphasizes application-specific amplifier matching where band fit matters.
That is exactly the decision point for the CRF-PA-400M440M-100W: it is a better candidate when the project is centered on 400-440 MHz instead of broad VHF/UHF coverage.
Public Model Data
The public narrowband page lists three 400-440 MHz preview models: 30 W, 50 W, and 100 W. The CRF-PA-400M440M-100W is the highest listed power class in that preview set. Its public values are 400-440 MHz frequency coverage, 100 W output power, 48 dB typical gain, and 160 x 120 x 25 mm size.
Those values give buyers enough information to start a technical review, but they do not replace the datasheet. CorelixRF notes that representative models are for preliminary engineering review and that custom narrowband configurations can be reviewed when the required band is not shown.
Best-Fit Applications
A 400-440 MHz 100 W narrowband amplifier may fit dedicated UHF communication testing, channel-specific RF source amplification, antenna characterization around a known UHF band, and OEM transmit-chain integration. It can also support lab validation where a test team needs predictable power delivery around the same channel window rather than a wide sweep.
For projects that require broader coverage, compare the 30-512 MHz RF power amplifier platform.
For mid-band coverage above UHF, review the 300-1700 MHz amplifier family.
For application-level testing, see RF testing and validation.
Integration Questions
Before requesting the CRF-PA-400M440M-100W datasheet, define the exact channel range, output power at the load, source level, waveform, duty cycle, load VSWR, connector preference, cooling path, and mechanical limits. If the amplifier is going into a production device, also define quantity, inspection requirements, documentation scope, and any supplier approval data needed.
The public page mentions M / V versions, so source/control preference should be confirmed during intake. Do not assume the control format before CorelixRF reviews the application.
Thermal and Mechanical Planning
The listed 160 x 120 x 25 mm size class should be checked against the enclosure early. A 100 W UHF PA still requires suitable mounting, airflow, and current capacity. If the application has a tight sealed enclosure, high ambient temperature, long duty cycle, or limited airflow, these details should be sent before quotation.
FAQ
What is the CRF-PA-400M440M-100W?
It is a 400-440 MHz, 100 W narrowband RF amplifier preview model publicly listed by CorelixRF, with 48 dB typical gain and a 160 x 120 x 25 mm size class.
When is it better than a broadband VHF/UHF amplifier?
It is better to review when the project is dedicated to 400-440 MHz and does not need full 30-512 MHz or wider broadband coverage.
Are full datasheets public?
The narrowband page shows representative preview models. Detailed datasheet and test data should be requested through engineering inquiry.
Can CorelixRF review another UHF narrowband range?
Yes. CorelixRF states that custom narrowband amplifier configurations can be reviewed based on frequency, output power, source type, control interface, connector, cooling, and mechanical requirements.