The Mini-Kits EME220-2M is a High Performance RX/TX masthead Pre-amplifier, and is specifically designed for the 2m 144-148MHz Amateur Band. The design uses the Mini-Circuits PGA-103 E-PHEMT amplifier that has a very high dynamic range and ultra low noise figure, and provides superior performance to Mos or GaAs FETs. The gain is adjustable so that the gain distribution can be optimized for coaxial cable loss that can be significant on the 2m band, and also to suit the receiver gain. The design incorporates VOX RF sensed changeover Relays for Trasnsceivers up to 100 Watts CW without using sequencing, or can handle up to 500 Watts PEP if sequencing is used. An on board bias tee ( DC power injector ), allows the pre-amplifier to be antenna mounted and powered via the coaxial cable. A Tuned input T type filter and low pass filter provides high rejection of signals at 50 and 430MHz.
The Product picture shows a completed EME220-2M-MH product with BNC connectors. N type connectors or adapters cannot be fitted as they are too large for the enclosure.
N Type female connectors will not fit on this product due to the masthead enclosure internal dimensions.
Enclosure Option This product has the option to be purchased with or without the GME masthead enclosure.
|Frequency Range:||144 to 148MHz ( BW 10MHz @ 1dB )|
|Band Rejection:||Typically >40dB @ 50MHz, 60dB @ 430MHz |
|Gain Adjustable:||Typically +18dB Max, 10dB Min @ 145MHz Adjustable|
|Noise Figure:||0.8dB ( Typically <0.7dB @ 145MHz )|
|Through Loss:||0.05dB @ 145MHz Bypass Mode|
|RF Power Handling:||100W CW ( Un-Sequenced ) 500W PEP ( Sequenced )|
|Minimum RF Input:||+20dBm ( 100 mW ) To activate the RF sensing circuit|
|Operating Voltage:||+11 to 15vdc ( +12vdc @ 150mA Recommended )|
|RF Connectors:||BNC Female ( Not available in other types )|
|Maximum Cable Diameter:||6.5mm ( CNT-240® RG-8X Recommended )|
|Enclosure Size:||80mm L x 84mm W x 25mm H|
|Kit Webpage:||For actual product Tests see the EME220 Kit Webpage|
This Product is available to ship to Australia and New Zealand Only and is Not available for Export to other countries.
Please Note: Built products need to be constructed and can take up to 10 working days before being shipped.
For more information please see the EME220 Product Webpage
2m 144-148MHz VHF RX/TX Masthead Preamplifier
- Brand: Mini-Kits
- Product Code: EME220-2M-MH
- Quantity In Stock: 1
- Export: $178.05