The FTDX5000 comes standard with a 3 kHz roofing filter in the SSB position and a 600 Hz roofing filter in the CW position. While the performance of these filter is good, for those seeking better performance, Inrad offers 2.4 kHz (#2310), 2.1 kHz (#2309), 1.8 kHz (#2308), and 500 Hz (#2304) filter options for this radio. Not only is the bandwidth narrower, but the skirts are steeper, offering improved performance under heavy QRM conditions.

Full installation instructions are available here:

• FTdx5000: Installing an Inrad SSB Roofing Filter
• FTdx5000: Installing the Inrad 500 Hz Roofing Filter

FTdx5000

Sort by: Product Price Default #2304 500 Hz CW 9000 kHz 8-pole... See details #2308 1800 Hz SSB 9000 kHz 8-pole... See details   #2309 2100 Hz SSB 9000 kHz 8-pole... See details   #2310 2400 Hz SSB 9000 kHz 8-pole... See details