KPA1500
This RFI Kit Includes are the following filters and installation guidelines:
RF Input:F240 ring – 5-9 turns of RG-58/8X size through center
RF Output:# 1 - FSB31-1 (Big Clamp on) – 3 turns of RG-8 size cable
RF Output:# 2 - FSB31-1 (Big Clamp on) – 3 turns of RG-8 size cable
PA KEY Cable: - FSB31-1/2 – multiple turns through choke – ½” diameter hole
DC Power Line: - FSB31-1 (Big Clamp on) – 2 turns through center
AC Line of DC Power Supply: - FSB31-1 (Big Clamp on) – 3 turns through center
Ports 7 to 15 : - FSB31-1/2 – multiple turns through choke – ½” diameter hole
Total ferrites: - F240 rings (1), FSB31-1 (4), FSB31-1/2 (10)
Also make sure you connect a good RF ground to the amplifier ground post.
Also make sure you connect a good RF ground to the transceiver ground post.
Note to Flex Radio users: Use snap on ferrites for firewire cable, speaker cable and mic cable, Ring ferrites for Antenna output and DC power.
For additional RFI suppression, use a feed line choke at the antenna to suppress common current on the coax feed line – see our store for feed line choke alternatives for use at the antenna.
If you use a linear amplifier we have RFI kits for linear amplifiers that help suppress RFI in your shack or in your neighbor’s house.