According to the service manual the low power transmitter lines 50-100W all use MRF300 AN but with 24v instead of 48v. I had some on my workbench but I didn't inspect the output stages. I will definitely take a closer look at it when it is on my desk again.RF-Head wrote: ↑Thu Dec 11, 2025 10:16 pm Suono from Italy use MRF300 AN and BN mosfets in there transmitters.
They run a single MRF300 on 250W and a double on 500W and it's runs cool for 24/7 dat in and out.
I have some MRF300 transmitters running also 24/7 and no problem
But overdrive or mismatch on the Gate will be a problem and will blow your MRF (never overdrive more then 1dB)
MRF101 Band 2
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mikroman
- big in da game.. trust
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Re: MRF101 Band 2
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Krakatoa
- no manz can test innit
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Re: MRF101 Band 2
So it seems these devices need to be way under run to get 24/7 reliability.
Maybe the 100W and 300W specs were thought to be achieved using the devices in pairs?
Maybe the 100W and 300W specs were thought to be achieved using the devices in pairs?