The Ferrite Ring Combo Pack is a convenient solution for troubleshooting RFI/EMI from unknown frequencies or multiple frequencies that require multiple suppression mixes. Included in this combo pack are ten 2.4″ OD/1.4″ ID ring toroids as follows:
Mix 75 effective from .15-10 MHz including AM Broadcast band – quantity: 3
Mix 31 effective from 1-300 MHz for general purpose – quantity: 4
Mix 61 effective from 200-2000 MHz for cell phone, WIFI, HDTV, Cable TV interference – quantity: 3
PURPOSE
These kits are designed to choke common mode currents going into or exiting from your Tuner Genius cables. Filters are supplied for the RF Input (s) RF Outputs, DC power and LAN input. The DC power line choke helps keep common mode current out of the power line which could cause interference to other devices connected to the same power line if not suppressed. The LAN cable choke keeps any RFI off the LAN cable input.
USE
RFI-AT-FLEX-TG Standard kit for tuners with SO2R option and RFI-AT-FLEX-TG3 for tuners with 3 antenna outputs option (1X3).
Note if you use other cables into the tuner such as PTT or otherwise, use FSB31-1/2 snap on ferrites for these lines and wind 2 or more turns thru center if possible. These ferrites sold separately.
KIT INCLUDES
|
Filter Type |
Usage |
SO2R Kit |
3 Antenna Kit |
|
Snap On (1/2” ID) |
DC Power |
1 |
1 |
|
Snap On (1/2” ID) |
Ethernet/LAN input |
1 |
1 |
| FSB31-1 |
RF Output |
2 |
3 |
| FSB31-1 |
RF Input |
2 |
1 |
|
Total Filters |
6 |
6 |
INSTALLATION GUIDELINES
SO2R Kit - Part# RFI-AT-FLEX-TG (2 Inputs, 2 Outputs)
RF Output:Snap On Filter (1” ID) – 3 turns (1/2" cable) or 6 turns (1/4" cable) of coax cable through center for each output - Use 1 for channel A and one for channel B Output
RF Input Snap On (1" ID) - 3 turns (1/2" cable) or 6 turns (1/4" cable) of coax cable through center for each input - Use one for channel A and one for channel B Input
Ethernet Cable:Snap On Filter (1/2” ID) – multiple turns through center
DC Power:Snap On Filter (1/2” ID) – 2 or more turns of DC (+ and -) power cord through center
3 Antenna Kit - Part# RFI-AT-FLEX-TG3 (3 Antennas, 1 input)
RF Output:Snap On Filter (1” ID) – 3 turns (1/2" cable) or 6 turns (1/4" cable) of coax cable through center for each output
RF Input Snap On (1" ID) - 3 turns (1/2" cable) or 6 turns (1/4" cable) of coax cable through center for TX input
Ethernet Cable:Snap On Filter (1/2” ID) – multiple turns through center
DC Power:Snap On Filter (1/2” ID) – 2 or more turns of DC (+ and -) power cord through center
Also make sure you connect a good RF ground to the tuner ground post.
The ring toroids are useful for AC/DC common mode choking with multiple turns as shown below
 AC Cable on F-240 Toroid – 7 turns |
 DC Cable on F240 – 4 turns |
The ring toroids can also be used on coax or signal lines as shown below:
 RG58 12 turns on FT240 |
 Ethernet Cable on F-240 Toroid – 7 turns |
For RFI/EMI wrap as many turns as possible for higher choking (under 30 mHz).