HF High Power Impedance Transformers

FLEX PGXL Linear Amplifier RFI Kit - Single/Dual I/O Options

SKU RFI-LA-FLEX-1
$59.95
Input/Ouput RF Ports
1
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FLEX PGXL Linear Amplifier RFI Kit - Single/Dual I/O Options
Product Details
MPN: RFI-LA-FLEX-1 or RFI-LA-FLEX-2
RFI Suppression Range (MHz): 1-100 MHz

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, 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

Standard kit for amplifiers with single input, single output, relay keying and AC input

Deluxe Kit for amplifiers with dual inputs/outputs, frequency/keying control lines

KIT INCLUDES

Filter Type

Usage

Standard Kit

Deluxe kit

F240 Ring (1.4” ID)

RF Exciter input

1

2

Snap On (1/2” ID)

Ethernet, PTT control

2

2

Snap On (1” ID)

RF Output

1

2

Snap On (1” ID)

120/240 VAC Input

1

1

Total Filters


5

7

INSTALLATION GUIDELINES

Standard Kit - Part# RFI-LA-FLEX-1

RF Input:Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center

RF Output:Snap On Filter (1” ID) – 3 turns of coax cable through center

PTT Relay Cable:Snap On Filter (1/2” ID) – multiple turns through center

Ethernet Cable:Snap On Filter (1/2” ID) – multiple turns through center

AC Power:Snap On Filter (1” ID) – 3 turns of power cord through center

Deluxe Kit - Part# RFI-LA-FLEX-2

RF Input (2)Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center

RF Output: (2)Snap On Filter (1” ID) – 3 turns of coax cable through center

PTT Relay Cable:Snap On Filter (1/2” ID) – multiple turns through center

Ethernet Cable:Snap On Filter (1/2” ID) – multiple turns through center

AC Power:Snap On Filter (1” ID) – 3 turns of power cord through center

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

The high power ferrite impedance transformer series (> 1:1), configured with outputs to act as a baluns (unbalanced coax in to balanced load output) or as ununs (unbalanced coax input to unbalanced load output) are designed for demanding radio transmitter stations that run over 1,000 watts PEP or run continuous modes like AM, digital, RTTY, FM, etc. at high power levels. Radio contest operators, commercial shortwave broadcast, and industrial and commercial stations use these transformers for for a variety of balanced and unbalanced antenna loads.  Baluns are typically used for balanced loads and antennas like dipoles, loops, log periodics, and direct feed yagi/beams.  Ununs are used  with verticals, end fed wires, horizontal dipoles, G5RV/ZS6BKW, Zepps, vertical wire beams, etc).  All products are in an enclosed NEMA water resistant box with SO-239 input connector and stainless steel side/top studs with wing nuts or side and top eyebolts.  The enclosure box has mounting “side feet” for attachment to a post or antenna boom using nylon ties.