450MHz Lowpass Filter

450MHz 7th order Chebychev Low Pass filter designed to to suit our Mitsubishi Module Kits, but can also be used with other Amplifiers. The Mitsubishi RA30H4047M1 modules require the use of a suitable Low Pass Filter to reduce the -40dBc second harmonic to a suitable level that complies with current ACMA and FCC rules of at least -50dBc. The Chebychev filter has been designed for low ripple, and uses low loss RF capacitors,high Q inductors to reduce RF losses. It will easily handle 60W carrier, and has at least -45db loss at the second harmonic of around 900MHz.

For more information see the EME183 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.

LPF7-450M KIT is the Basic Kit that includes the PC board, Instructions, and all on board components. Requires complete construction and soldering of some SMD components.

LPF7-450M PCB is the PC board and Kit construction notes only.

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

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

Specifications
Low Pass Filter:	450MHz 7th Order Chebychev, suits the 70cm Band
Frequency Response:	Refer to the Test Data
Harmonic Rejection:	-45dBc @ 900MHz
Insertion Loss:	<0.4dB
Return Loss:	>20dB
Input Power:	60 Watts FM or 100W SSB
PC Board Size:	55mm L x 33mm W x 15mm H

450MHz Lowpass Filter