EME235 Series Amplifier Modules
- EME235 PC board Description:
UPDATED Sep 2022! - GALI-39x-R2:
Updated Dec 2022! - GALI-84x-R2:
Updated Sep 2022! - MGA31189-R2:
- PGA103-ADS-R2:
- PGA103-434-R2:
Updated Jan 2023! - PGA103-UHF-R2:
Updated Sep 2022! - PGA103-2M-R2:
- PGA103-WB-R2:
- PHA-1x-R2:
NEW Sep 2022! - Product Changes and Updates:
Updated Sep 2022! - Buy A EME235 Series Amplifier:
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.
The GALI-39x-R2 is ideal as a low noise wide band high gain amplifier for use between 0.5MHz and 4GHz.
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 version showing the S21 Frequency Response from 0.5 to 30MHz
GALI-39L-R3 S21 Frequency Response showing a steep roll off below 100kHz which is mainly due to the 0.1uFcoupling capacitors and 100uHchokes.
GALI-39L-R3 S21 Frequency Response showing that the amplifier is usable from 100kHz through to at least 350MHz
GALI-39M-R2 S21 Frequency Response showing that the amplifier is usable from 100MHz through to 2GHz
GALI-39H-R2 S21 Frequency Response showing that the amplifier is usable from 340MHz through to 4GHz
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.
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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 Frequency Response showing that the amplifier is usable from 500kHz through to 1GHz
GALI-84L-R3 S21 Frequency Response showing a steep roll off below 100kHz which is mainly due to the 0.1uF coupling capacitors and 100uH chokes.
GALI-84L-R3 S21 Frequency Response showing that the amplifier is usable from 100kHz through to at least 250MHz.
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 Frequency Response showing that the amplifier is usable from 330MHz through to 4GHz
The MGA31189-R2 amplifier is ideal as a high gain high dynamic range driver amplifier for use between 50MHz and 2GHz. As a driver amplifier the MGA31189-R2 produces an output between +23 to +24dBm @ 1dB compression over this frequency range. This amplifier is ideal as a driver for the BATC DTX-1 DATV Transmitter, for driving a RA18H1213G module to a very linear 5 Watts output. 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
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The picture shows the MGA31189-R2 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
MGA31189-R2 S21 Frequency Response showing a steep roll off below 100MHz which is mainly due to the 100pF coupling capacitors.
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
The picture shows the PGA103-ADS-R2 1090MHz Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-ADS-R2 S21 Frequency Response
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.
The picture shows the PGA103-2M-R1 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-2M 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.
The picture shows the PGA103-2M-R2.1 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
The PGA103-434-R2 amplifier is ideal as a very low noise high dynamic range amplifier for use between 430-440MHz for Lora ISM. The amplifier has a very steep roll off of gain outside the frequency range due to the use of a SAW filter. This Amplifier is not recommended for receive applications in the 70cm band if there are transmitters being used on other bands, as there is no input filtering which could result in overload. 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.
The picture shows the PGA103-434-R2 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-434-R2 434MHz Filter Frequency Response and S21 Gain showing good out of band rejection. 3dB Bandwidth is around 10MHz.
The PGA103-UHF-R2 amplifier is ideal as a very low noise high dynamic range amplifier for use between 430MHz and 450MHz. The design is tune-able from around 400 to 500MHz with the onboard trimmer capacitor, with a maximum useable bandwidth of a few MHz for lowest noise figure. 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.
The picture shows the PGA103-UHF-R2.0 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
The picture shows the PGA103-UHF-R2.1 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-UHF-R2 T Filter Frequency Response and S21 Gain showing good out of band rejection at 145MHz
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
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The picture shows the PGA103-UHF-R2 Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PGA103-WB-R2 S21 Frequency Response showing a steep roll off below 100MHz which is mainly due to the 100pF coupling capacitors.
The PHA-1x-R2 is ideal as a low noise high dynamic range receive amplifier, or a transmit driver amplifier for use between 70MHz and 2GHz. As a driver amplifier the PHA-1x produces an output of up to +21dBm @ 1dB compression between 70MHz and 2GHz. The amplifier is currently available in 1 frequency range of 70MHz-2GHz ( PHA-1M-R2 ). 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
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The picture shows the PHA-1M-R2 70MHz to 2GHz Amplifier with SMA connectors and 2.1mm DC connector mounted on the board.
PHA-1M-R2 S21 Frequency Response showing that the amplifier is usable from 70MHz through to 2GHz
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
2/ Sep 2022. The PGA103-UHF-R2 has now been replaced with the R2.1 Version. The only change is to the input inductor.