Posts by DF2HF

Quote from PA3GUO

DF2HF,

I did not modify mine yet.

I started at 16v, moved to 24v, and did some more tests at 28v.

Clear that performance/gain at 2250 MHz is 10dB better than 2400MHz.

Input was an RS signal generator.

So I will next snowflake the PA to get the higher gain also at 2400MHz.

The tables give the initial results.

My goal is DATV, intended use is to connect it to a Portsdown TX.

What is your goal, WB or NB usage?

Henk

Display More

Thank you very much for the detailed reply. That looks promising. The maximum output of my LimeSDR Mini is 8-10dBm and the output of my first stage amplifier (Analog Devices CN0417) is around 27dBm, so I can easily get the 25-30W based on your table by feeding it with 15-20dBm.

Right now I am using a Chinese amplifier (EP-AB003 WiFi booster) which is rated for 8W but actually gives me 3W (35dBm) and I'm not happy with the result.

For now I would like to operate in NB, but WB is my next step.

DM5RM I have ordered MMBX and AFI adapters to test the amplifier. Is it safe to put it to use without any modifications?

I don't want to get the maximum power. Even 20-25W is more than enough for me, but I don't know whether it would cause problems for the amp (because of high VSWR or bias issues or mismatch)

I am not experienced with microwave modifications, so I would prefer not to modify and I read in this thread that you'd already managed to run it without mods. Any tips to share?

Hi

What's the name of the push-on connectors on these Nokia PA boards?

I've ordered 2 different models of these PAs from eBay (one with BLD6G22L-150BN and one BLF7G22L-130N), but I don't know which exact cable/adapter I will need. Based on pictures, it seems like MMBX, right?