This low cost Receive Only VHF 2M Preamplifier has been designed to be easy to construct and can be center frequency tuned for use between 115 and 180MHz. The Preamplifier is suitable for the 144-148MHz amateur band, and also for weather satellite reception on 137MHz. The Preamplifier has the option of being powered via the coaxial cable, and is very suitable for retrofitting inside older transceivers to improve the weak signal gain. A low cost BF998 MesFET has been used as it has very good characteristics on the VHF to UHF bands. The BF988 was specifically designed for television tuners and has a low 0.7dB NF @ 145MHz, along with high cross modulation performance.

The Product image shows a fully constructed EME173-2M B1 product.  Please refer to the Options Tab for the descriptions of the various products available.

Please Note: There is a minimum 2 day delay to construct built products before they are shipped.

EME173-2M KIT is a Basic Kit that includes the PC board, Instructions, and all on board components.  No connectors or enclosure are included. Requires Complete construction and fitting of two SMD components.

EME173-2M B1  Is a fully constructed board Kit with female SMA connectors.  This product cannot be mounted into a Hammond 1590A enclosure.

EME173-2M B2  Is a fully constructed product in a Hammond 1590A enclosure with female SMA and 2.1mm DC socket

EME173-2M B3  Is a fully constructed product in a Hammond 1590AFL enclosure with female SMA and 2.1mm DC socket

EME173-2M PCB Only includes the PC board and Kit construction notes. No on board Components are included.

EME173 Enclosure Kits include all the hardware to mount a EME173-2M KIT into an enclosure.

Basic Kits Do Not include connectors, miscellaneous hardware, or enclosure. The 2.1mm DC cable is optional and not supplied with Products.  Ideal for beginner to average constructor.

Specifications
Tunable Frequency Range:
115 to 180MHz
Gain: Typically +18dB @ 145MHz
3dB Bandwidth: >5MHz
Noise Figure:
1.0dB ( Typically < 0.7dB @ 145MHz )
Operating Voltage: +10 to 15vdc ( +12vdc @ 10mA Recommended )
Board Size: 71mm L x 32mm W x 15mm H ( without connectors or enclosure )

For more Information see the EME173-Rev2 KIT WEBPAGE

2m 144-148MHz Receive Only Preamplifier

  • Brand: Mini-Kits
  • Product Code: EME173-2M KIT
  • Quantity In stock: 10
  • $27.50


Available Options


Accessories



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