This Relay Kit is suitable for switching RF from 0 to 2.6GHz. The Relay is specified for up to 10Watts @ 900MHz. The Full EME144 Kit includes PC board G6Z Relay, & 3 x SMA09 Connectors.

Specifications:

Return Loss : 34dB @ 430MHz, 27dB @ 1.27GHz,
15.5dB @ 2.5GHz, 15dB @ 3.4GHz
Insertion Loss: 0.25dB @ 1.27GHz, 0.2dB @ 2.5GHz, 0.8dB @ 3.4GHz
Isolation: Between any ports, 65dB @ 430MHz, 60dB @ 1.27GHz, 49dB @ 2.5GHz, 32dB @ 3.4GHz

Network Analyzer Test Results

EME144 Complete Kit

  EME144 KIT WEB PAGE

MITSUBISHI MODULE PCB KIT

These Kits are to suit the older Mitsubishi Modules that some Hams or suppliers may have in stock. Mini-Kits still has some M68719 Modules available, see below until sold out.

Kits include PC Board, Instructions & all onboard components. We are not able to supply the M series Mitsubishi modules to suit these.

Use the M57762 KIT1 for M57735 Modules as they have the same pinout & bias.

WE HAVE A LIMITED NUMBER OF M68719 KITS INCLUDING MODULES BELOW.

2WATT 2400MHz MMIC 
LINEAR AMPLIFIER MODULE

This Modern High Performance 2.4GHz Power Amplifier uses a low cost PHEMT MMIC IC.  The MMIC provides a gain of 29dB & a saturated output power of more than +33dBm.  The MMIC requires minimal input & output matching to 50ohms, & makes other discrete PA designs using GaAs & HFETs etc, virtually obsolete for these power levels.  The PA is suitable for use with the current 2400MHz Transverter, & ATV Transmitter Kits.  The PA uses a high performance switching power supply along with bias protection circuitry, to provide high efficiency over a wide input voltage range, & has very low heat dissipation. Due to a Spectrum Analyzer being required to tune this Amplifier, it is for advanced constructors only.  The Module requires a heat sink, connectors & miscellaneous hardware to complete. 

Specifications:

PCB Dimensions: 37x47mm 
Supply Voltage: 9v min to 14v max 
Current 650mA @ 12v input
Gain: 29dB Minimum
Bandwidth: 2350 - 2450MHz 100MHz @ 1dB
Output Power: 2Watts +33dBm @ 1dB Comp
Input Power: 4dBm (2.5mW) for 33dBm (2Watt) Output.

Please Note:  This PA is not suitable for Wireless Lan or 
( WiFi ) as it is not Bi-Directional.  You will require an Amateur Radio License or equivalent qualifications to purchase this Product.  This Product is only available to licensed operators in the 2400MHz band. It is Illegal to use this Product on unlicensed low power wireless Lan, video senders, video surveillance or any other LIPD device without a license. 

SORRY THIS KIT IS NOT CURRENTLY AVAILABLE. DUE TO THE INCREASE IN PRICING FROM CHINA WE HAVE BEEN UNABLE TO SOURCE THE TC3141 DEVICE AT A REASONABLE COST.

The Heatsink1 that is available is unpainted aluminium cut to length only, & is not predrilled.  Only the SMA06 & SMA13 size connectors will fit the available Heatsink1.  A simple tinplate or brass cover can be fabricated to fit the Heat sink to cover the amplifier.   A drill press along with a 2.5mm metal working Tap is required to Tap the Heat sink.

PLEASE NOTE: This Kit is for Advanced constructors Only. This Kit requires experience in surface mount soldering, along with metal working to complete successfully. A Spectrum Analyzer is required for tuning this Amplifier for full output Power.

This is a High Performance Power Amplifier with a High Efficiency Switch Mode Power supply, suitable for operation between 5 & 14V DC. This should not be compared to Higher Powered Surplus Commercial Amplifiers.

 

2WATT 3400MHz MMIC 
LINEAR AMPLIFIER MODULE

This Modern High Performance 3.4GHz Power Amplifier uses a low cost PHEMT MMIC IC.  The MMIC provides a gain of 27dB & a saturated output power of +33dBm.  The MMIC requires minimal input & output matching to 50ohms, & makes other discrete PA designs using GaAs & HFETs etc, virtually obsolete for these power levels.  The PA is suitable for use with 3400MHz Transverter, & ATV Transmitter Kits.  The PA uses a high performance switching power supply along with bias protection circuitry, to provide high efficiency over a wide input voltage range, & has very low heat dissipation.

No Tuning is Required, but either a power meter or Spectrum Analyzer would be useful to check the output power.
LEVEL OF CONSTRUCTION IS FOR ADVANCED CONSTRUCTORS ONLY.

Specifications:

PCB Dimensions: 37x47mm 
Supply Voltage: 9v min to 14v max 
Current 700mA @ 12v input
Gain: 27dB Minimum
Bandwidth: 2450 - 3650MHz @ 3dB
Output Power: 2Watts +33dBm @ 1dB Comp
Input Power: 5dBm (3.2mW) for 33dBm (2Watts) Output.

Frequency Response & Bandwidth

Please Note:  This PA is not suitable for Wireless LaN or
( WiFi ) as it is not Bi-Directional.  You will require an Amateur Radio License or equivalent qualifications to purchase this Product.  It is Illegal to use this Product on unlicensed low power wireless Lan, video senders, video surveillance or any other LIPD device without a license. 

IN STOCK

The Heatsink1 that is available is unpainted aluminum cut to length only, & is not predrilled.  Only the SMA06 & SMA13 size connectors will fit the available Heatsink1.  A simple tinplate or brass cover can be fabricated to fit the Heat sink to cover the amplifier.   A drill press along with a 2.5mm metal working Tap is required to Tap the Heat sink.

PLEASE NOTE: This Kit is for Advanced constructors Only. This Kit requires experience in surface mount soldering, along with metal working to complete successfully.

1WATT 5800MHz MMIC 
LINEAR AMPLIFIER MODULE

This Modern High Performance 5.8GHz Power Amplifier uses a low cost PHEMT MMIC IC.  The MMIC provides a gain of 22dB & a saturated output power of +30dBm.  The MMIC requires minimal input & output matching to 50ohms, & makes other discrete PA designs using GaAs & HFETs etc, virtually obsolete for these power levels.  The PA is suitable for use with 5800MHz Transverter, & ATV Transmitter Kits.  The PA uses a high performance switching power supply along with bias protection circuitry, to provide high efficiency over a wide input voltage range, & has very low heat dissipation.

No Tuning is Required, but either a power meter or Spectrum Analyzer would be useful to check the output power.
LEVEL OF CONSTRUCTION IS FOR ADVANCED CONSTRUCTORS ONLY.

Specifications:

PCB Dimensions: 37x47mm 
Supply Voltage: 9v min to 14v max 
Current 600mA @ 12v input
Gain: 22dB Minimum
Bandwidth: 5100 - 6100MHz @ 3dB
Output Power: 1Watts +30dBm @ 1dB Comp
Input Power: +7dBm (5mW) for 30dBm (1Watt) Output.

Frequency Response & Bandwidth

Please Note:  This PA is not suitable for Wireless LaN or
( WiFi ) as it is not Bi-Directional.  You will require an Amateur Radio License or equivalent qualifications to purchase this Product.  It is Illegal to use this Product on unlicensed low power wireless Lan, video senders, video surveillance or any other LIPD device without a license. 

IN STOCK

The Heatsink1 that is available is unpainted aluminium cut to length only, & is not predrilled.  Only the SMA06 & SMA13 size connectors will fit the available Heatsink1.  A simple tinplate or brass cover can be fabricated to fit the Heat sink to cover the amplifier.   A drill press along with a 2.5mm metal working Tap is required to Tap the Heat sink.

PLEASE NOTE: This Kit is for Advanced constructors Only. This Kit requires experience in surface mount soldering, along with metal working to complete successfully.

 
A simple Receive only broadband untuned preamplifier built on the MMIC experimenters board.  Uses a Teflon PC board for low loss. Suitable for use as a wide band antenna amplifier for use on a scanning receiver or TV set.  The preamplifier uses an ERA3 MMIC which is suitable up to 3GHz.  Kit includes PC board & all on board components, requires box, connectors, & miscellaneous hardware to complete. The EME126 PC board is also suitable for use as an amplifier stage in a transmitter, or for experimenting with the MGA86576 HP Low Noise MMIC.

Specifications:

Gain: ERA-3  16dB@1GHz  10dB@2.4GHz
NF:   <2.7dB @ 1.2GHz  <3.1dB @ 2.4GHz
Power:  +12v 35mA

The New EME126 PC Boards are etched on 0.81mm RO4003C material & have plated through holes.  All components 
used are surface mount types.

SMA Connectors are Not Included.

All components used are surface mount types.

13/23CM PREAMPLIFIER KIT

Receive only pre amp built on G10 PC board. Suitable for use from 1200MHz to 2500MHz.  Single stage uses a MGF1302 GasFET, dual stage uses a MGF1302 & ERA amplifier. Most receive setups including Satellite receivers will only usually require the single stage version.  If the preamplifier is to be mounted at the antenna with lossy cable, then the dual stage version should be used.  Kit includes PC board & all on board components, requires box, connectors, & miscellaneous hardware to complete. For best Performance, only an SMA or N Type connector should be used on the input. SMA sockets are recommended for most applications. Also suitable for 1700MHz Weather Satellite use.

Specifications:

Dual Stage Prototypes tuned with an SMA input socket measured recently on a ( HP 8970B )
0.51dB Noise Figure & 33dB gain @ 1250MHz,  
0.62dB NF & 26.64dB gain @ 1500MHz,
1.6dB NF & 24.5dB gain @ 2400MHz
Power: 10-15 volts Single Stage 15mA, Dual Stage 65mA
PCB Board size 68x37mm

For single stage gain subtract around 12dB from the above dual stage gain figures.

THE NEW VK5 6M PREAMPLIFIER KIT

The Preamplifier has been designed to be relatively easy to construct, & only uses conventional components, ( No SMD ). The preamp can be centre frequency tuned from 40 to 60MHz, & is suitable for the 6M 50 - 54MHz Amateur band, & also suitable for low Band TV DX. The Preamp uses a low cost BF988A MesFET, which has good strong signal handing characteristics. The design incorporates RF changeover Relays & power supply decoupling so that power can be fed via the coaxial cable. It is simple to tune, & does not have any instability problems due to the use of a wideband output matching circuit. The Basic EME157 Kits include, PC board & all on board components, requires box, connectors, & miscellaneous hardware to complete.

The difference between the KITA & B is only the Relays. All RF changeover components are still supplied in the RX only Kit.

Specifications:

Prototype measured recently on a ( HP 8970B ) In a RF Screened Room.
Noise Figure <1.5dB ( Typically 1 .15dB @ 50MHz )
Gain ( Typically 15dB gain @ 50MHz ) Onboard 10dB Att
Through Loss 0.05dB 0.15dB NF @ 50MHz
Power Handling ( TX Power 100 Watts Maximum 50MHz )
Power 11 - 15 Volts ( 100mA Relay Version )

IN STOCK

BUILT KITS ARE NOT CURRENTLY AVAILABLE

To connect the Antenna to the Preamp, & Preamp to the main feedline, we recommend the use of LMR240 cable with crimped BNC connectors. LMR240 is double shielded & has losses similar to RG213 cable, but has a much smaller 6mm diameter. Refer to our catalogue section3.pdf for LMR240 cable & connectors. The GME Masthead box will accept cables up to around 8mm in diameter. Therefore larger cables like RG8/213 cannot be used with this box. Larger cables would also place too much strain on the BNC sockets on the Preamplifier.

Please Note: Mini-Kits cannot be expected to take responsibility to make this product work on your Radio. We can only give guidance on how best to use this product. Many Radios may need modification for a TX voltage output to hard switch the preamp when using high power. Some Radios like the TS2000 do not feed +12 volts out the Antenna socket when the preamp switch is turned on, so either power & switching cables need to be run to the preamplifier, or a bias T will have to be constructed to feed power up the coaxial cable & connect to the Radios TX voltage output.

We don't expect that many will have any problems with the standard plastic Mast Head box compared to a shielded one. It may help only to keep some strong out of band Ham signals e.g. 2M or 70cm from entering the preamplifier & possibly overloading the Radios Receiver.

THE NEW VK5 2M PREAMPLIFIER KIT

The Preamplifier has been designed to be relatively easy to construct, & only uses conventional components, ( No SMD ). The preamp can be centre frequency tuned from 120 to 150MHz, & is suitable for the 2M 144 - 148MHz Amateur band, & also suitable for Weather Satellite reception on 137MHz. The Preamp uses a low cost BF988A MesFET, which has good strong signal handing characteristics. The design incorporates RF changeover Relays & power supply decoupling so that power can be fed via the coaxial cable. It is simple to tune, & does not have any instability problems due to the use of a wideband output matching circuit. The Basic EME157 Kits include, PC board & all on board components, requires box, connectors, & miscellaneous hardware to complete.

The difference between the KITA & B is only the Relays. All RF changeover components are still supplied in the RX only Kit.

Specifications:

Prototype measured recently on a ( HP 8970B ) In a RF Screened Room.
Noise Figure <1.5dB ( Typically 1 .12dB @ 145MHz )
Gain ( Typically 16dB gain @ 145MHz ) Onboard 6dB Att
Through Loss 0.05dB 0.15dB NF @ 145MHz
Power Handling ( TX Power 100 Watts Maximum 144MHz )
Power 11 - 15 Volts ( 100mA Relay Version )

Noise Figure & Bandwidth

IN STOCK

BUILT KITS ARE NOT CURRENTLY AVAILABLE

To connect the Antenna to the Preamp, & Preamp to the main feedline, we recommend the use of LMR240 cable with crimped BNC connectors. LMR240 is double shielded & has losses similar to RG213 cable, but has a much smaller 6mm diameter. Refer to our catalogue section3.pdf for LMR240 cable & connectors. The GME Masthead box will accept cables up to around 8mm in diameter. Therefore larger cables like RG8/213 cannot be used with this box. Larger cables would also place too much strain on the BNC sockets on the Preamplifier.

Please Note: Mini-Kits cannot be expected to take responsibility to make this product work on your Radio. We can only give guidance on how best to use this product. Many Radios may need modification for a TX voltage output to hard switch the preamp when using high power. Some Radios like the TS2000 do not feed +12 volts out the Antenna socket when the preamp switch is turned on, so either power & switching cables need to be run to the preamplifier, or a bias T will have to be constructed to feed power up the coaxial cable & connect to the Radios TX voltage output.

We don't expect that many will have any problems with the standard plastic Mast Head box compared to a shielded one. It may help only to keep some strong out of band Ham signals e.g. 6M or 70cm from entering the preamplifier & possibly overloading the Radios Receiver.

 GME Kingray Weatherproof Masthead Housing
 For Nickel Spray Shielding Add an extra $5.00