1.8MHz High Pass Filter designed to provide protection to receivers from strong signals in the AM broadcast band, and provides over 25dB attenuation at 1.5MHz. Low loss NPO ceramic capacitors have been used along with wire wound high Q inductors to reduce RF losses.

For more information see the EME174 FILTER KIT WEBPAGE


HPF9-1M8 KIT is the Basic Kit that includes the PC board, Instructions, and all on board components. Requires complete construction and soldering of SMD components.

HPF9-1M8 KITB is a fully constructed product in a diecast enclosure with SMA female connectors. ( As shown in the product pictures ).

HPF9-1M8 PCB is the PC board and Kit construction notes only.

SMA33 Female SMA connector to suit 1.6mm PC boards only.

FILTER-HW-KIT Optional hardware Kit that includes Hammond 1550Q diecast enclosure , 2x SMA35 female connector, Nuts, Bolts, Washers, Lugs, and Spacers

Kits Do Not include connectors, miscellaneous hardware, or enclosure.

High Pass Filter:
1.8MHz 9th order Chebychev
Frequency Response:
Refer to the Test Data
Insertion Loss:
< 1dB from 1.8 to 100MHz
Return Loss:
> 15dB from 1.8 to 100MHz
Input Power:
10 Watts Maximum
Operating Voltage: +5vdc ( +7-15vdc Recommended )
Board Size: 46mm L x 41mm W x 15mm H

1.8MHz 9th Order High Pass Filter

  • Brand: Mini-Kits
  • Product Code: HPF9-1M8 KIT
  • Quantity In stock: Discontinued Product
  • $19.95

Available Options

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1.8MHz 11th Order High Pass Filter
500kHz 9th Order Low Pass Filter