EME235 Series Amplifier Modules

EME235 PC-Board View
Fully constructed Amplifier on the EME235 PC board

 

EME235 Packaged View
Packaged EME235 PC board Amplifier in an aluminium housing

 

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EME235 PC Board Description:

The EME235 PC board was released in November 2017 and is designed to fit a standard aluminium extruded enclosure. The EME235 PC board was designed to construct amplifier gain blocks for various applications using the Mini-Circuits PGA, PHA, and GALI MMIC amplifiers. Is it also suitable for most other x pack and SOT-89 packages that have the same lead pinouts. The PC board is specifically for Mini-Kits built Amplifier products which are not available as Kits.

Currently Mini-Kits produces a wideband PGA103-WB-R2 amplifier that covers 100MHz to 2GHz, and tuned amplifiers that cover the 2M 144-148MHz, 430-450MHz and 1090MHz ADS bands.

GALI-39x-R2 Product Notes:

The GALI-39x-R2 is ideal as a low noise wide band high gain amplifier for use between 0.5MHz and 4GHz. The amplifier has a low noise figure of under 2.5dB up to 3GHz and up to 20dB gain to 2GHz. The amplifier is available in 3 different frequency ranges of 0.5MHz-1GHz ( GALI-39L ), 100MHz-2GHz ( GALI-39M ), and 300MHz-4GHz ( GALI-39H ). As a driver amplifier the GALI-39 produces an output of up to +12dBm @ 1dB compression between 0.1MHz and 2GHz. The amplifier incorporates an on board voltage regulator that allows operation between +9 to +15vdc, and a on board bias tee that allows power to be fed up a coaxial cable to power the amplifier for antenna mounted receive applications. BUY THIS PRODUCT

GALI-39M-R2 PCB View
The picture shows the GALI-39x-R2 100MHz to 2GHz Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
GALI-39L-R2-S21
GALI-39L-R2 S21 Frequency Response showing that the amplifier is usable from 500kHz through to 1GHz
GALI-39M-R2-S21
GALI-39M-R2 S21 Frequency Response showing that the amplifier is usable from 50MHz through to 2GHz
GALI-39H-R2-S21
GALI-39H-R2 S21 Frequency Response showing that the amplifier is usable from 600MHz through to 4.4GHz

GALI-84x-R2 Product Notes:

The GALI-84x-R2 is ideal as a very high dynamic range receive amplifier, or a transmit driver amplifier for use between 0.5MHz and 4GHz. The amplifier is available in 3 different frequency ranges of 0.5MHz-1GHz ( GALI-84L ), 100MHz-2GHz ( GALI-84M ), and 300MHz-4GHz ( GALI-84H ). As a driver amplifier the GALI-84 produces an output of up to +21dBm @ 1dB compression between 0.1MHz and 2GHz. The amplifier incorporates an on board voltage regulator that allows operation between +9 to +15vdc, and a on board bias tee that allows power to be fed up a coaxial cable to power the amplifier for antenna mounted receive applications. BUY THIS PRODUCT

GALI-84M-R2 PCB View
The picture shows the GALI-84x-R2 100MHz to 2GHz Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
GALI-84L-R2-S21
GALI-84L-R2 S21 Frequency Response showing that the amplifier is usable from 500kHz through to 1GHz
GALI-84M-R2-S21
GALI-84M-R2 S21 Frequency Response showing a steep roll off below 100MHz which is mainly due to the 100pF coupling capacitors.
GALI-84H-R2-S21
GALI-84H-R2 S21 Frequency Response showing that the amplifier is usable from 300MHz through to 4GHz

PGA103-ADS-R2 Product Notes:

The PGA103-ADS-R2 amplifier is ideal as a very low noise high dynamic range amplifier for use on the ADS 1090Mhz band.. The amplifier has a very steep roll off of gain under 1040Mhz and over 1145MHz due to the use of a TA1090EC SAW filter. The amplifier incorporates an on board voltage regulator that allows operation between +7 to +15vdc, and a on board bias tee that allows power to be fed up a coaxial cable to power the amplifier for antenna mounted receive applications.. BUY THIS PRODUCT

PGA103-WB-R2 PCB View
The picture shows the PGA103-ADS-R2 1090MHz Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-ADS-S21
PGA103-ADS-R2 S21 Frequency Response

PGA-103-2M-R2 Product Notes:

The PGA103-2M-R2 amplifier is ideal as a very low noise high dynamic range amplifier for use between 144MHz and 148MHz. The amplifier has a very steep roll off of gain under 144MHz due to the input T filter that gives good rejection of 6M band 50MHz signals. As a driver amplifier the PGA103-2M-R2 produces an output between +20 to +23dBm @ 1dB compression over this frequency range. The amplifier incorporates an on board voltage regulator that allows operation between +7 to +15vdc, and a on board bias tee that allows power to be fed up a coaxial cable to power the amplifier for antenna mounted receive applications.. BUY THIS PRODUCT

PGA103-2M-R2 PCB View
The picture shows the PGA103-2M-R2 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-2M-R2 PCB View
PGA103-2M-R2 T Filter Frequency Response and S21 Gain showing good out of band rejection at 50MHz. The input filter is tuned for maximum gain at 147MHz for the lowest NF at 144MHz.

PGA103-UHF-R2 Product Notes:

The PGA103-UHF-R2 amplifier is ideal as a very low noise high dynamic range amplifier for use between 430MHz and 450MHz. The amplifier has a very steep roll off of gain between this frequency range mainly due to the PGA-103 performance. As a driver amplifier the PGA103-UHF-R2 produces an output between +20 to +23dBm @ 1dB compression over this frequency range. The amplifier incorporates an on board voltage regulator that allows operation between +7 to +15vdc, and a on board bias tee that allows power to be fed up a coaxial cable to power the amplifier for antenna mounted receive applications. BUY THIS PRODUCT

PGA103-UHF-r2 Enclosure View
The picture shows the PGA103-UHF-R2 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-WB-R2 PCB View
PGA103-UHF-R2 T Filter Frequency Response and S21 Gain showing good out of band rejection at 145MHz

PGA103-WB-R2 Product Notes:

The PGA103-WB-R2 amplifier is ideal as a very low noise high dynamic range amplifier for use between 100MHz and 1.3GHz. The amplifier has a very steep roll off of gain between this frequency range mainly due to the PGA-103 performance. As a driver amplifier the PGA103-WB-R2 produces an output between +20 to +23dBm @ 1dB compression over this frequency range. The amplifier is housed in an extruded aluminium enclosure and and features an on board voltage regulator that allows operation between +7 to +15vdc. BUY THIS PRODUCT

PGA103-WB-r2 Enclosure View
The picture shows the PGA103-WB-R2 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-WB-R2-S21
PGA103-WB-R2 S21 Frequency Response showing a steep roll off below 100MHz which is mainly due to the 100pF coupling capacitors.

Product Changes and Updates:

PGA103-WB-R2

1/ There have been reports of failure of the PGA-103 when used as a preamplifier on an antenna, and I can confirm this as my own 70cm masthead preamplifier failed during a lightning storm even though it has a ground input in the form of a tuned input filter. The compromise of using the PGA-103 or ultra low noise GasFets directly on an antenna is that it will probably fail at times due to lightning or static damage, so it is advisable to disconnect antennas during storms to prevent damage. It is recommended that masthead preamplifiers have bypass relays that can bypass the preamp when the pre-amp power is turned off to protect the pre-amp when there are storms. Mini-Kits offers a number of low noise masthead preamplifiers for the 6M to 23cm bands that have onboard relays. See the RF Preamplifier Web page