40m band 7th order Chebychev band pass filter designed as a front end filter to provide image rejection to Receivers from strong out of band signals, provides over over 46dB IF rejection at 9MHz.  All filters have been modeled on the PA3AKE Chebychev filter designs, and cover the popular HF amateur bands. 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

The Product image shows a fully constructed Kit product.  Please refer to the Options Tab for the descriptions of the various products available.

BPF7-40M KIT is the Basic Kit that includes the PC board, Instructions, and all on board components. Requires complete construction and soldering of SMD components.

BPF7-40M 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 miscellaneous hardware, connectors or enclosure.
Filter Frequency:
40M Band 7th Order CF 7.150MHz, BW 750kHz
Response: Refer to the EME184-BPF7-40M Data
9MHz IF Rejection:
> 46dB
Insertion Loss:
< 2dB
Return Loss:
> 15dB
Input Power:
10 Watts Maximum
Board Size: 44mm L x 18.5mm W x 20mm H

40m HF Bandpass Filter

  • Brand: Mini-Kits
  • Product Code: BPF7-40M KIT
  • Quantity In Stock: 10
  • $22.95

  • Export: $20.86

  • Discount Pricing

  • 5 pcs or more $20.65
  • 10 pcs or more $18.36

Available Options


Enter desired quantity before clicking Add to Cart button

SMA33 PCB Mount Wide 1.6mm

SMA33 PCB Mount Wide 1.6mm

$3.30 Export: $3.00

Filter Enclosure Kit

Filter Enclosure Kit

$21.95 Export: $19.95

EME184 PC board

EME184 PC board

$6.60 Export: $6.00

  • Total:

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