ACOM 2000 HF Linear Amplifier + Remote Control Unit RFI Kit - 8 RFI/Noise Reduction FiltersProduct DetailsMPN: RFI-LA-AC2000Filter Power Rating (PEP watts): coax cable limitRFI Suppression Range (MHz): 1-60 MHz# Ferrite Filters: 8PURPOSE
These kits are designed to choke common mode currents going into or exiting from your amplifier cables.Filters are supplied for the RF In, RF Out, Relay Cable/control lines, remote control unit and AC power line.Use of the filters often helps cure SWR problems between amp exciter and amp and between amp and antenna tuner or direct to antenna.The AC 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.
USE
KIT INCLUDES
Filter Type
Usage
Ferrites
F240 Ring (1.4” ID)
Transceiver RF coaxr
1
Snap On (1/2” ID)
Remote Control Unit cables
5
Snap On (1” ID)
RF Output, AC/DC power
2
Total Filters
8
INSTALLATION GUIDELINES
Amp RF Input:Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center
Amp RF Output:Snap On Filter (1” ID) – 3 turns of coax cable through center
RCU Cables:Snap On Filter (1/2” ID) – multiple turns through center
AC Power:Snap On Filter (1” ID) – 3 turns of power cord through center
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PURPOSE
These kits are designed to choke common mode currents going into or exiting from your amplifier cables.Filters are supplied for the RF In, RF Out, Relay Cable/control lines, remote control unit and AC power line.Use of the filters often helps cure SWR problems between amp exciter and amp and between amp and antenna tuner or direct to antenna.The AC 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.
USE
KIT INCLUDES
|
Filter Type |
Usage |
Ferrites |
|
F240 Ring (1.4” ID) |
Transceiver RF coaxr |
1 |
|
Snap On (1/2” ID) |
Remote Control Unit cables |
5 |
|
Snap On (1” ID) |
RF Output, AC/DC power |
2 |
|
Total Filters |
8 |
INSTALLATION GUIDELINES
Amp RF Input:Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center
Amp RF Output:Snap On Filter (1” ID) – 3 turns of coax cable through center
RCU Cables:Snap On Filter (1/2” ID) – multiple turns through center
AC Power:Snap On Filter (1” ID) – 3 turns of power cord through center
Christmas lights or yard lights with switching DC power supplies are often the RFI source and a clamp on ferrite bead on the AC AND the DC side feeding the lights is needed to help suppress the switching power supply RFI noise. Suitable snap on beads are FSB31-1/2 for the 1-250 MHz range.
We have also had reported wireless HDTV boxes, and FOSCAM and AMCREST security camera systems causing RFI to garage door remote openers. Use our Garage Door Opener RFI kit to suppress the interference to the opener (VICTIM) – you need one kit for each opener. Maximize the distance from the camera to the openers may also help. Additionally shield cable to the garage door sensors may be needed depending on severity of the camera RFI.
Obvious Tech Note: make sure your remote batteries have enough energy to activate the GDO or the signal they transmit may not be large enough to over ride the RFI signal, but a fresh battery may be able to overcome the weak RFI source and allow the GDO to operate correctly.