 
.
LINEAR
AMPLIFIER /
PREAMPLIFIER
KITS
Thursday 11th June09 All Prices
Include GST
.
RA30H1317M
130-170MHz 30W ( 10pcs In Stock
) $55.00ea 0
pcs on Order 
RA60H1317M 130-170MHz 60W ( 8pcs
In Stock
) $85.00ea 0
pcs on Order
RA30H4047M 400-470MHz 30W ( 24pcs
In Stock
) $60.50ea 0
pcs on Order
RA60H4047M1
400-470MHz 60W ( 0pcs In Stock
) $NAea 10
pcs on Order
M57716 ( Sold Out )
No Longer Manufactured
M67715 ( Sold Out )
No Longer Manufactured
M68719 1200-1300MHz 16W ( 2pcs In Stock
) $85.00ea
Limited Quantity
Available
RA18H1213G 1200-1300MHz 18W (11pcs
in Stock
) $102.50ea
20pcs on Order
Please Note that all
of the above M numbered modules are now obsolete
from Mitsubishi &
will be replaced gradually with the new RA MOSFET
types.

2.6GHZ
RELAY KIT
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
|
IN
STOCK
| Order No |
Description |
Each |
| EME144 PCB |
PC Board Only |
$ 7.00 AUD |
| EME144 KIT |
Includes EME144 PCB 3 x SMA09 1 x G6Z-1F-DC12 |
$ 26.80 AUD |
| SMA09 |
SMA Male Connector ( 3 Required Included In Kit ) |
$ 3.30ea AUD |
| G6Z-1F-DC12 |
Omron 2.6GHz SPDT Relay ( Included In Kit ) |
$ 10.35 AUD |

.
1.2GHz
1W AMPLIFIER KIT
This Amplifier Kit uses an ATF50189
PHEMT which is specified at around 15.5dB gain, & a high
+29dBm output power @ 1dB compression at 2GHz. On 1.2GHz
the amplifier produces up to +29dBm @ the 1dB compression
point. With an input of +10dBm, ( 10mW ) the amplifier
will produce around +27dBm, ( 500mW ) output.
The Kit includes PC board & all on board components, requires
connectors, & miscellaneous hardware to complete.
The Amplifier is also suitable for
driving the Mitsubishi RA18H1213G module to full power.
Components for a 5dB attenuator
are supplied with the Kit
Specifications:
Freq Range: 1240 - 1300MHz
Output Power: +29dBm, ( 800mW
) @ 1db Comp
Gain: 15dB Minimum Typicaly 17dB
Power: +5V 280mA
Size: 32 x 45mm
Refer to the Avago Data Sheet 
|
Complete 1.2GHz Kit
Connectors & Heatsink
are not supplied with
the basic Kit
Heatsink2
The New EME162 PC Boards
are etched on 1mm FR4 material &
have plated through holes. All
components used are surface
mount types.
|
NEW
IN STOCK
| Order No |
Description |
Each |
| EME162 PCB |
PC Board Only No Instructions |
$ 9.70 AUD |
| EME162-1200 KIT |
Basic 1W Amplifier Kit for 1.2GHz  |
$ 32.00 AUD |
| SMA09 |
SMA Male Connector ( 2 Required Not Included In Kit )
|
$ 3.30ea AUD |
| HEATSINK2 |
Grid Array Heatsink ( 1Required Not Included In Kit ) |
$ 3.40 AUD |

.
GALI-84
100mW AMPLIFIER KIT
This driver amplifier is a simple
broadband design which is suitable as a transmitters driver
stage. A Gali-84 MMIC, ( Monolithic Microwave Integrated
Circuit ) is used as it has > 21dB gain, & >
+21dBm output power @ 1dB compression over the HF to 2GHz
range. The amplifier produces up to +21.5dBm @ 1.2GHz,
& +20dBm @ 2.4GHz. Only around 0dBm 1mW is required
to drive the amplifier to full power.
The Kit includes PC board & all on board components,
requires box, connectors, & miscellaneous hardware
to complete.
Specifications:
Gain: GALI-84 22dB@1.2GHz
18.5dB@2.4GHz
O/P: 21.5dBm@1.2GHz, &
20dBm@2.4GHz.
Power: +12v 100mA
Size: 32 x 45mm
This Kit is supplied
with components to cover 3 frequency ranges from DC-60MHz,
VHF/UHF, & >1GHz.
|
Complete GALI-84 Kit
Connectors are not supplied
with the basic Kit
The New EME162 PC Boards
are etched on 1mm FR4 material &
have plated through holes. All
components used are surface
mount types.
Components for a 10dB attenuator
are supplied with the Kit
Similar Gain & more Output power
compared to the ERA-5
|
| |
NEW
IN STOCK
REPLACES THE ERA5 KIT
WE STILL HAVE 2x ERA5
KIT LEFT IN STOCK $20ea |
.
| Order No |
Description |
Each |
| EME162 PCB |
PC Board Only No Instructions |
$ 9.70 AUD |
| GALI-84 PCB/2 |
PC Board with Instuctions |
$12.70 AUD |
| GALI-84 KIT |
Basic GALI-84 Amplifier Kit  |
$ 27.40 AUD |
| SMA09 |
SMA Male Connector ( 2 Required Not Included In Kit )
|
$ 3.30ea AUD |
30WATT
430MHz AMPLIFIER KIT
Uses a Mitsubishi RA30H4047M
module on a single PC board measuring 70 x 30mm & is suitable
for 432MHz Transverters , & 70cm AM ATV, (
Linearity Tested as being suitable for AM ATV ). The complete
Kit includes all onboard components, double sided through hole
plated PC board & requires a heat sink, connectors, &
miscellaneous hardware to complete.
Specifications:
Freq Range: 400 - 470MHz
Output Power: 30Watts for 50mW
Input
Refer to the Mitsubishi Data
Sheet
New Deepcool P4 Octopus 478 Heatsink
with Fans are now available to suit the Mitsubishi Modules
|
Please refer to the EME76B web page
for more information on Mitsubishi's
RA series modules.
|
| Order No |
Description |
Each |
| RA30H4047M PCB |
PC Board & Instructions Only ( Included In Kits ) |
$16.50 AUD |
| RA30H4047M KIT1 |
Complete Kit Without RA30H4047M
Module |
$25.50 AUD |
| RA30H4047M KIT2 |
Complete Kit Including RA30H4047M
Module |
$86.00 AUD |
| HEATSINK4 |
P4 Heatsink Including Fan
( 490gms weight ) 98x83x71.6mm 12VDC |
$18.50 AUD |
| RA30H4047M |
Mitsubishi 30Watt RA30H4047M
Power Module Only |
$60.50 AUD |
.
18WATT
1200MHz AMPLIFIER KIT
Uses a Mitsubishi RA18H1213G module
on a single PC board measuring 70 x 30mm & is suitable for
the 1200MHz FM ATV Transmitter & 23cm Transverter Kits etc.
The complete Kit includes all onboard components, double sided
plated through hole PC board, & requires a heat sink, connectors
& miscellaneous hardware to complete.
The Mitsubishi Data sheet specifies
this module as being suitable for FM & SSB applications
by changing the bias & RF drive.
Specifications:
Freq Range: 1240 - 1300MHz
Output Power: 18Watts for 200mW
Input (FM, ATV ) 14Watts PEP linear
output on SSB. 25Watts FM Maximum
13.8v Supply.
Refer to the Mitsubishi Data Sheet
New Deepcool P4 Octopus 478 Heatsink
with Fans are now available to suit the Mitsubishi Modules
|
Please refer to the EME76B web page
for more information on Mitsubishi's RA series modules.

|
| Order No |
Description |
Each |
| RA18H1213G PCB |
PC Board & Instructions Only ( Included In
Kits ) |
$16.50 AUD |
| RA18H1213G
KIT1 |
Complete Kit Without RA18H1213G
Module |
$25.50 AUD |
| RA18H1213G
KIT2 |
Complete Kit Including RA18H1213G
Module |
$128.00 AUD |
| HEATSINK4 |
P4 Heatsink Including Fan
( 490gms weight ) 98x83x71.6mm 12VDC |
$18.50 AUD |
| RA18H1213G |
Mitsubishi 18Watt RA18H1213G
Power Module Only |
$102.50 AUD |
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. |
The above Picture shows the Mitsubishi RA Kit which is similar.
|
NEW MITSUBISHI
PCB KITS AVAILABLE NOW
| Order No |
Description |
Each |
| M57716 KIT1 |
Complete Kit Without M57716 Module |
$25.50 AUD |
| M57716 KIT2 |
Complete Kit With M57716 Module |
SOLD OUT |
| M57762 KIT1 |
Complete Kit Without M57762 Module |
$25.50 AUD |
| M68719 KIT1 |
Complete Kit Without M68719 Module |
$25.50 AUD |
| M68719 KIT2 |
Complete Kit With M68719 Module |
$110.50 AUD |
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. |
Click Image for a larger view
This Prototype shows the Heat sink&
SMA06 connectors available for this Kit.
|
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.
|
.
| Order No |
Description |
Each |
| EME128 PCB |
PC Board & Instructions Only ( Supplied with the Kit
) |
$ NO STOCK |
| EME128 KIT |
Complete Kit ( Supplied with mounting Bolts ) |
$ NO STOCK |
| HEATSINK1 |
Unpainted Aluminum Heat sink cut to 37-38mm length
suit EME128. Size ( 105x38x32mm ) |
$ 10.00 AUD |
| SMA06 |
Female 4 hole SMA Flange Socket |
$ 4.50 AUD |
| SMA13 |
Male 4 hole SMA Flange Plug |
$ 5.50 AUD |
| BOLT14 |
M2.5 x 6mm ( For Mounting of SMA connectors ) |
$ 0.15ea AUD |

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. |
Click Image for a larger view
This Prototype shows the Heat sink&
SMA06 connectors available for this Kit.
Construction
Pictures EME141 KIT
|
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.
|
.
| Order No |
Description |
Each |
| EME141-3400 PCB |
PC Board & Instructions Only ( Supplied with the Kit
) |
$ 25.00 AUD |
| EME141-3400 KIT |
Complete Kit 3400MHz ( Supplied with mounting Bolts ) |
$ 96.70 AUD |
| LABOUR ( Extra ) |
To Solder the TC3341 MMIC to the board |
$ 10.00 AUD |
| SMA06 |
Female 4 hole SMA Flange Socket |
$ 4.50 AUD |
| SMA13 |
Male 4 hole SMA Flange Plug |
$ 5.50 AUD |
| HEATSINK1 |
Unpainted, Untapped, Aluminum Heat sink cut to 37-38mm
length suit EME141. Size ( 105x38x32mm ) |
$ 10.00 AUD |
| BOLT14 |
M2.5 x 6mm ( For Mounting of SMA connectors ) |
$ 0.15ea AUD |
.

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. |
Click Image for a larger view
This Prototype shows the Heat sink&
SMA06 connectors available for this Kit.
Construction
Pictures EME141 KIT
|
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.
|
| Order No |
Description |
Each |
| EME141-5800 PCB |
PC Board & Instructions Only ( Supplied with the Kit
) |
$ 25.00 AUD |
| EME141-5800 KIT |
Complete Kit 5800MHz ( Supplied with mounting Bolts ) |
$ 96.70 AUD |
| LABOUR ( Extra ) |
To Solder the TC3531 MMIC to the board |
$ 10.00 AUD |
| SMA06 |
Female 4 hole SMA Flange Socket |
$ 4.50 AUD |
| SMA13 |
Male 4 hole SMA Flange Plug |
$ 5.50 AUD |
| HEATSINK1 |
Unpainted, Untapped, Aluminium Heat sink cut to 37-38mm
length suit EME141. Size ( 105x38x32mm ) |
$ 10.00 AUD |
| BOLT14 |
M2.5 x 6mm ( For Mounting of SMA connectors ) |
$ 0.15ea AUD |
.
PREAMPLIFIER
KITS
ERA3 WIDEBAND
ANTENNA
AMPLIFIER
KIT
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. |
IN
STOCK
| Order No |
Description |
Each |
| ERA3 PCB |
PC Board & Instructions Only ( Included In Kits ) |
$ 10.00 AUD |
| ERA3 KIT |
Complete Wide band Antenna Amplifer Kit |
$ 20.00 AUD |
| EME126 PCB |
PC Board Only No Instructions |
$ 8.50 AUD |
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. |
Hundreds of previous versions of these
Kits have been sold to Amateurs in Australia & Exported
since 1998
EME103 KIT WEB PAGE
|
IN STOCK
Please
Note these are not Available Built
| Order No |
Description |
Each |
| EME103 PCB |
PC Board & Instructions Only ( Included In Kits ) |
$ 16.50 AUD |
| EME103 KITS |
Single Stage Kit |
$ 35.00 AUD |
| EME103 KITD |
Dual Stage Kit |
$ 40.00 AUD |
| SMA09 |
SMA Socket Gold Plated Solderable PC Board Mount |
$ 3.30 AUD |
| NS01 |
N Socket Silver Plated 4 Bolt Mount |
$ 5.50 AUD |
.
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
)
|
The Mast Head Boxes ( Box 19
) are now available with Nickel Sprayed Shielding for an extra
$5.00
If you want Nickel Spray Shielding then please add an extra
$5.00 cost to all Kits & Built products that are supplied
with the Mast Head Box.
EME157 KIT WEB PAGE
|
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
|
The Mast Head Boxes ( Box 19
) are now available with Nickel Sprayed Shielding for an extra
$5.00
If you want Nickel Spray Shielding then please add an extra
$5.00 cost to all Kits & Built products that are supplied
with the Mast Head Box.
EME157 KIT WEB PAGE
|
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.
|
.
| Order No |
Description |
Each |
| EME157B2 PCB |
PC Board & Instructions Only ( Included In Kits ) |
$ AUD |
| EME157B2 KITA |
Basic Full Transmitt Receive Kit with Relays |
$ 45.00 AUD |
| EME157B2 KITB |
Basic Receive Only Kit No Relays |
$ 40.00 AUD |
| BNS01 |
BNC Single Hole Mount Type BNS01 ( 2 Required ) |
$ 4.40ea AUD |
| BOX 19 |
GME Kingray Weatherproof Masthead Housing
For Nickel Spray Shielding
Add an extra $5.00 |
$ 8.50ea AUD |
| EME157B2 COMP |
Complete EME157B2 KITA including GME Masthead Box
& BNC Connectors |
$ 62.20 AUD |
| EME157B2 BUILT |
Complete EME157B2 KITA including Shielded GME Masthead Box,
& BNC Connectors ( BUILT & TUNED ) |
NOT AVAILABLE |
.
Home | Kits1|
Kits3 | Kits4
| Ordering |
This and
all subsequent pages copyright 1999 - 2009 by Mini-Kits
All rights reserved
. |
|