MMDVM_HS Duplex 900Mhz
Posted: Wed Mar 08, 2023 2:27 pm
Morning,
If this is the wrong board. Let me know I I will post it some other place. I had a couple XPR6580 sitting around. I tuned my MMDVM to 902.65 and 927.65. My antennas have a flat match. Was not able to get very far away from the MMDVM before I lost the signal. So I hooked my spectrum up to the MMDVM. on 420 it is putting out 14mW. on 900 it is only putting out 818pW. Is this normal? Are there components that needs to be changed on the board to make it work on 900? It says the chip will work from 896 to 950ish. If it is not possible to get more power out of it. I can just get a different MMDVM and run HT's instead. But I would rather run the MMDVM. They are better on power then an HT is.
Thanks,
Ryan (KB8PMY)
If this is the wrong board. Let me know I I will post it some other place. I had a couple XPR6580 sitting around. I tuned my MMDVM to 902.65 and 927.65. My antennas have a flat match. Was not able to get very far away from the MMDVM before I lost the signal. So I hooked my spectrum up to the MMDVM. on 420 it is putting out 14mW. on 900 it is only putting out 818pW. Is this normal? Are there components that needs to be changed on the board to make it work on 900? It says the chip will work from 896 to 950ish. If it is not possible to get more power out of it. I can just get a different MMDVM and run HT's instead. But I would rather run the MMDVM. They are better on power then an HT is.
Thanks,
Ryan (KB8PMY)