Portable Operation RFI Kits

HF Linear Amplifier RFI Kit - Alpha Amps - 4 Filters

SKU RFI-LA-AL
$54.95
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HF Linear Amplifier RFI Kit - Alpha Amps - 4 Filters
Product Details
MPN: RFI-LA-AL
Filter Power Rating (PEP watts): coax cable limit
RFI Suppression Range (MHz): 1-100 MHz

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

ALPHA models – all AC models including 76, 77, 78, 86, 87A, 89, 91B, 99, 274, 374, 8100, 8406, 8410, 9500

AMERITRON models – all AC models including AL80A, AL80B, AL82B, AL572, AL800, AL800H, AL811, AL811H, AL1200

HEATHKIT models – all AC models including SB200, SB201, SB220, SB221, SB230, HA10, HL2200, SB1000

HENRY RADIO models – all AC models including 1K, 2K, 3K, 4K, 5K, 8K

KENWOOD models – all AC models including TL922, TL922A

All AC powered rigs like B&W, Collins, Command, Dentron, Drake, Gonset, Hallicrafters, Hammarlund, Hunter, Icom, Palomar, Palstar, QRO, SBE, Swan, Tokyo Hy-Power, Yaesu

Included are the following chokes and installation guidelines:

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

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

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

AC Power Line: FSB-1 (Big Clamp on) – 3 turns through center

Portable operation is fun but also brings challenges to the radio operator concerning receiver “noise” levels, RF interference from adjacent sources including close by transmitting stations, and RFI from portable generators.  A typical scenario and some suggested Palomar product solutions are shown in the picture below:

Generator RFI testimonial:

Bob 

Received your order in a timely fashion. Tried the generator kit on Sunday & it drops the noise from S9 to S5 and 
took out all the electrical noise.  I may want some more toroids from you at some point for other interference problems
I have  here.
Ken VE3KCY

Using an amplifier?  Don’t forget our Linear Amplifier RFI Kits

Want to make up your own RFI kits for a particular operation? Here are links to some of  typical RFI solutions used in portable operations:

AC/DC common mode filters

Feed Line chokes

Coax Noise Filters

If you use a computer for logging in your portable operations, RFI getting into computers will often lock up your computer and/or radio and a computer RFI suppression kits may be helpful

Computer RFI Kits

Make your expedition or portable operation a pleasant and fun outing and remember to take along your RFI kits so you have more time to operate rather then to troubleshoot intermittent or noisy receiver conditions.

Portable Antenna Kits

If you need an effective portable antenna which folds up for transport yet is easy to deploy at your operating site, consider the BULLET series of end fed wire antennas.

BULLET Antennas (click on link or picture for more info)

Bullet Antenna Product 300x292 - Portable Operation RFI Kits