Elecraft KPA500 HF Linear Amplifier RFI Kit - 5 Filters for RF In/Out, AC Power, PA KEY, Computer Control/AUX/RS232

Name: Elecraft KPA500 HF Linear Amplifier RFI Kit - 5 Filters for RF In/Out, AC Power, PA KEY, Computer Control/AUX/RS232
SKU: RFI-ELECRAFT-KPA500
Price: 49.95 USD
Availability: InStock

RFI-ELECRAFT-KPA500

$49.95

In stock

Quantity:

Product Details

MPN: RFI-ELECRAFT-KPA500

Type: New

Country/Region of Manufacture: United States

Filter Power Rating (PEP watts): coax cable limit

RFI Suppression Range (MHz): 1-300 MHz

# Ferrite Filters: 5

Typical Use:: AC power, RF In/out, I/O control cables

This is a generic linear amplifier RFI kit for DC powered amplifiers. Works on many popular amplifiers including:

Specially designed for the Elecraft KPA500 linear amplifier used with the KX3 and similar transceivers.

Included are the following chokes and installation guidelines:

RF Input:F240 ring – 5-9 turns of RG-58 size through center

RF Output:FSB-1 (Big Clamp on) – 3 turns of RG-8 size cable

PA KEY Cable:FSB-1/2 – multiple turns through choke – ½” diameter hole

AC Power Line:F240 ring – 5-6 turns through center

Computer/RS232/AUX Cable:FSB-1/2 – multiple turns through choke – ½” diameter hole

Also make sure you connect a good RF ground to the amplifier ground post.

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These RFI kits are specifically selected to cure most household computer device RFI problems. It contains ferrite toroids for AC or DC power supply protection and Snap On ferrite spli beads selected to eliminate RFI from 1 to 1000 Mhz. The beads are easy to use, don’t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail.

Typical Installations


Ethernet Cable on F-240 Toroid – 7 turns	Ethernet Cable on FSB-1/2 – 3 turns for 9X Impedance	Ethernet Cable on FSB-1/4
AC Cable on F-240 Toroid – 6 turns	DSL Modem DC Power Supply on F114-43 Toroid – 5 Turns