Probe on the moon and cw signals!
Japan on the moon, the Slim mission touched the soil !!!
The Japanese radio amateur station JQ1ymg is entrusted
QRG 437.410 MHz, 1 Watt with CW emission !!!
You can use a normal radio amateur transceiver e
The disatance between Moon and Earth surface is about 384400 km, so back and forth distance is about 768800 km.
At 437.410 MHz the free path loss is about 203 dB!
If you're using good Yagi–Uda antenna with 20 dBi gain on receiver and on transmitter, the signal loss will be more than 203-20*2=163 dB.
Using 1W transmitter you have 30 dBm power. So the receiver will get less than +30-163=-133 dBm power. This is about 0.05 uV.
It will be very hard to detect the signal which is less than 0.05 uV.
So, it's better to use 100 W transmitter, which is 50 dBm power. It will give you 20 dB gain in comparison with 1 W, so your receiver will get +50-163=-113 dBm. Which is about 0.5 uV. This is much better and you can detect it with a good receiver.
If you want to receive transmitter placed on the Moon, the distance will be twice shorter 384400 km and free path loss will be 197 dB. The difference is just 6 dB.
As you can see, you're needs to use pretty large antennas with high directivity in order to achieve high enough antenna gain. Otherwise you will be unable to recevie something from the Moon. Just because free path loss is about 200 dB.