The New Mini-Kits High Performance VHF 6M RX/TX masthead Pre-amplifier has been designed to be easy to construct, and is suitable for the 50-54MHz Amateur Band. The design uses a 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 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 output low pass filter provides high rejection of signals below 30 and above 100MHz.
THIS KIT IS NOT FOR BEGINNERS AND REQUIRES VERY EXPERIENCED SOLDERING SKILLS
The Product picture shows a completed EME220-6M KIT1 product with Optional BNC connectors
This product is ideal for use with most 6M band Transceivers either by powering directly, or by feeding +12vdc power up the coaxial cable using a bias tee like the Mini-Kits EME168-6-4-2. When using a high power RF amplifier up to 500 Watts, additional sequencing will be required to protect the pre-amplifier from damage. The Mini-Kits EME166 Sequencer can be adapted to be used for correct sequence timing of the Rx to TX changeover.
For more information see the EME220 Kit Webpage
Please Note: There is a minimum 4 day delay to construct built products before they are shipped.
EME220-6M KIT1 is a Basic Kit that includes the PC board, Instructions, and all on board components. No connectors or enclosure are included. Requires Complete construction.
EME220-6M KIT2 is the KIT1 but also includes the BNC connectors and Nickel sprayed GME enclosure. Requires Complete construction.
EME220-6M-MH Is a fully constructed product in a Nickel sprayed GME enclosure with female BNC connectors.
EME220-6M-BNC-S Is a fully constructed product in a Hammond 1590S Die cast enclosure with female BNC connectors and 2.1mm DC socket.
The basic EME220-6M KIT1 Does Not include connectors, miscellaneous hardware, or enclosure. This Kit is Ideal for experienced constructors that have had experience with SMD construction
|Frequency Range: ||50-54MHz ( 1dB Gain BW 4.5MHz ) |
|Band Rejection:||Typically 30dB @ 100MHz, 58dB @ 145MHz |
|Gain Adjustable:||Typically +19.5dB Max, 11dB Min @ 51MHz |
|Noise Figure: ||0.7dB ( Typically <0.6dB @ 51MHz ) |
|Through Loss: ||0.08dB @ 51MHz ( Bypass Mode ) |
|RF Power Handling: ||100W CW ( Un-Sequenced ) 500W PEP ( Sequenced ) |
|Minimum RF Input: ||+20dBm ( 100mW ) To activate the RF sensing circuit|
|Operating Voltage:||+11 to 15vdc ( +12vdc @ 150mA Recommended )|
|Board Size:||80mm L x 84mm W x 25mm H ( with BNC connectors ) |
|Kit Webpage:||For actual product Tests see the EME220 Kit Webpage|
For more information please see the EME220 KIT WEBPAGE
6m 50MHz VHF RX/TX Preamplifier
- Brand: Mini-Kits
- Product Code: EME220-6M KIT
- Quantity In stock: 10