I am planning on building a device that will perform a frequency conversion of a band of RF in approximately the region of 650 MHz down to 520 MHz. The bandwidth will need to be approximately 50 MHz.
It is a "repeater" style device, where the device will receive 650 MHz and then re-transmit on 520 MHz.
What are the likely issues with this? I am assuming that there will be filtering challenges and I will likely need to use a much higher Intermediate Frequency, i.e.
650 MHz -> 900 MHz
900 MHz -> 520 MHz
In order to overcome filtering challenges that I assume I would run into if attempting to do a direct conversion.
This will be the first time I have attempted something like this - are there any other issues I might need to consider before planning my design?