1200MHz REPEATER KITS

A 23cm Repeater Kit ( EME72B RPT ) is now available. It includes all components & a second PC board to turn a standard 23cm EME72B kit into separate RX & TX boards required to build a Repeater. An I/F frequency of around 144 to 148MHz is only available, as 430MHz cannot be used with these Kits. The local oscillator is a fixed 1152MHz cannot be changed easily as the Transverter uses a 1152MHz Helical filter. Two separate EME65 local oscillator kits along with crystals & 50deg C heaters are required. Below are the components required to build a basic 23cm Repeater Kit. The requirement of experience in building Repeaters is required to successfully build these Kits into a workable Repeater. Suitable 2M or VHF highband Radios are required along with Hardware including RF shielded boxes, connectors, & cables etc

Order No	Description	Each
EME72B KIT	Basic Transverter Kit	$110.00 AUD
EME72B RPT	Additional Parts to make the EME72B into a Repeater	$53.50 AUD
EME65 KIT1	500MHz Local Oscillator Kit No Crystal ( 2 Required )	$25.00ea AUD
Crystals	TSO7S HI-Q 5ppm 50deg C Crystal ( 2 Required )  Up to 3 weeks delay Special Order	$34.00ea AUD
50DEG	12 volt PTC Thermistor suits 50deg TS07S Crystals Only	$2.35 AUD
SMA09	SMA Female PCB Mount Connector ( 6 Required RPT )	$3.30ea AUD
Cable & Connectors	Download Catalogue Section3.pdf

2400MHz TRANSVERTER KIT

The complete High Performance Transverter is suitable for Satellite operation on 2401MHz, & SSB on 2403MHz.  It is constructed on a professionally etched 90x65mm Teflon PC Board, & uses a number of SMD components, Mini-Circuits Mixer & Amplifiers, & a 5 Section Hairpin Filter to make the design compact & predictable in performance. The basic Transverter Kit comes complete with all onboard components, & requires miscellaneous hardware, connectors & box to complete.

The EME94 KIT1 is a Basic Kit only, & requires the option listed below to construct a complete Transverter. The options depend on whether you want it for 2.4GHz receive only, or as a complete Transverter. The recommended options are listed below.

Please Note: This Kit Cannot be modified or used on 2304MHz

Specifications: Freq Range: 2350 – 2450MHz 
Receiver: 24.5dB Gain, <2.6dB NF 
I/F: 144 – 148MHz ( 2400 – 2404MHz ) 94MHz  Standard Crystal  
I/F: 432 - 436MHz ( 2400 - 2404MHz ) 82MHz Optional Crystal
TX Output Power: > +17dBm 50mW 
Power: RX +9V 80mA TX +9v 120mA

 

NEW UPDATED KIT IN STOCK

Use the EME144 KIT as a 13cm antenna switch connected directly to the EME94 Transverter board for the RX & TX RF antenna switching. The EME144 is suitable for use with the EME128 2W Power Amplifier Kit to switch up to 5 Watts FM or SSB.

REFER BELOW FOR ADDITIONAL KITS & COMPONENTS THAT YOU WILL REQUIRE TO BUILD A
COMPLETE TRANSVERTER OR PHASE 3E RX KIT.  THESE KITS DO NOT INCLUDE HARDWARE,
CONNECTORS OR BOXES. PLEASE ORDER THE CORRECT CRYSTAL & DIPLEXER KIT TO SUIT
YOUR RADIO, ( 144MHz OR 432MHz ) THAT YOU ARE GOING TO USE.
 

To Build a complete RX/TX 2400MHz Transverter You with require the following

EME94 KIT1	Basic Transverter Kit ( Requires I/F Diplexer Kit )	$ 110.50 AUD
144MHz DIPLEXER	I/F Diplexer Kit ( 144MHz IF )	$ 4.50 AUD
432MHz DIPLEXER	I/F Diplexer Kit ( 432MHz IF )	$ 4.50 AUD
EME65 KIT1	500MHz Local Oscillator Kit No Crystal	$25.00 AUD
EME139 KIT3	Complete EME139 KIT1 with extra EME139 PCB Filtering	$35.75 AUD
94.000MHz	TS07S HI-Q 5ppm 50deg C Crystal ( 144MHz IF )	$29.90 AUD
82.000MHz	TS07S HI-Q 5ppm 50deg C Crystal ( 432MHz IF )	$34.00 AUD
50 DEG	12 volt PTC Thermistor suits 50deg TS07S Crystals Only	$2.35 AUD
EME144 KIT	Includes EME144 PCB 3 x SMA09 1 x G6Z-1F-DC12	$26.80 AUD
SMA09	SMA Female PCB Mount Connector ( 5 Required EME94 )	$3.30ea AUD
Cable & Connectors	Download Catalogue section3.pdf
7809T	7809T 9 Volt Regulator suit power supply for EME94	$0.70ea AUD
EME66 KIT	Transverter Sequencer Option Kit	$40.00 AUD

To build a 2400MHz Phase 3E RX You will require the following

PLEASE NOTE: The EME94 KIT1 is Not available as a Receive only Kit without the Transmitt board components. The cost difference without supplying the Transmitt components is minimal, & allows the full Transverter function to be used without updating at a later time.

EME94 KIT1	Basic Transverter Kit ( Requires I/F Diplexer Kit )	$ 110.50 AUD
144MHz DIPLEXER	I/F Diplexer Kit ( 50/144MHz IF )	$ 4.50 AUD
432MHz DIPLEXER	I/F Diplexer Kit ( 432MHz IF )	$ 4.50 AUD
EME65 KIT1	500MHz Local Oscillator Kit No Crystal	$25.00 AUD
EME139 KIT1	Complete Kit ERA3/1 Multiplier +8dBm out	$25.75 AUD
94.000MHz	TS07S HI-Q 5ppm 50deg C Crystal ( 144MHz IF )	$34.00 AUD
82.000MHz	TS07S HI-Q 5ppm 50deg C Crystal ( Optional 432MHz IF )	$34.00 AUD
Cable & Connectors	Download Catalogue Section3.pdf

 

400-500MHz LOCAL OSCILLATOR KITS

Suitable for using with transverters & converters up into the high microwave bands.  The Oscillator is a G4DDK Butler design for low Phase noise, good stability, & reliable starting. The oscillator can be used in the 400 – 600MHz range, & provides up to 10mW ( +10dBm ) output.  The complete Kit includes a Plated through PC board, & all onboard components except crystal. The Kit requires a Crystal, box & miscellaneous hardware to complete.

Standard & High stability Series 5th Overtone Crystals are listed in the Crystal Page of the Component Catalogue.  Divide your Output frequency by 2 then by 3 for the required Crystal Frequency.

This Kit is very similar to the previous but has a number of changes to improve phase noise in the power supply, & to allow different components to be used depending on component availability.

Specifications: Freq Range: 400-540MHz / 540-600MHz
Output: >10dBm
PC Board Size: 69 x 48mm

 

Order No	Description	Each
EME65B PCB	PC Board & Instructions Only ( Included In Kits )	$16.50 AUD
EME65 KIT1	Complete Kit 540 - 600MHz	$25.00 AUD
EME65 KIT1B	Complete Kit1 Built & Tested	$Call AUD
EME65 KIT2	Complete Kit 400 - 540MHz	$25.00 AUD
EME65 KIT2B	Complete Kit2 Built & Tested	$Call AUD
50DEG	12 volt PTC Thermistor suits 50deg TS07S Crystals Only	$2.35 AUD
Crystals	Download Catalogue section4.pdf

 

This Sequencer has been designed to fully control a Transverter & various other components like, antenna relays, power amplifiers, & preamplifiers etc. High powered stations generally require proper sequencing of the RX to TX, & TX to RX switching so that preamplifiers & relay contacts are not damaged. The Sequencer has 3 delayed TX output switching voltages & has the option of being able to switch 28volt SMA relays. The Sequencer has the option of either RF or voltage switching from a 28-144MHz Transceiver, & can handle up to 3W max input. It is particularly suitable for using with either a FT290R, or a IC202 that have voltage switching on the antenna socket. Output power from the TX I/F can be adjusted down to 0dBm ( 1mW ), with 3Watts input for driving a Transverters mixer direct. The receive I/F signal path has adjustable level to set the maximum gain required for the receive conversion & transceiver used. Requires box & miscellaneous hardware to complete. 

Specifications: 

I/F TX Input:   28MHz - 144MHz Up to 3Watts Maximum Input
TX/RX Delay:   200mS  10uF Capacitor / 10kohm Resistor
Switched Inputs:    (PTT) +12v to TX ( FT290R ),  0v to TX ( IC202 )
RF Sensed RX/TX Switching
Switched Outputs:  Delay1, RX +12v, TX 0v  ( RX Powersupply )
       Delay2, RX 0v, TX +12 to 28v  ( Coaxial Antenna Relay )
       Delay3, RX 0v, TX +12 to 28v  ( Powersupply to TX Power Amplifier )
       Delay4, RX 0v, TX +12v ( TX Stages Powersupply )
Powersupply:   Voltage required +8 to 15v  DC
Current, RX mode 40mA,  TX mode 70mA ( Includes Relay )

Order No	Description	Each
EME66 PCB	PC Board & Instructions Only ( Included In Kits )	$25.50 AUD
EME66 KIT	Complete Kit	$40.00 AUD
EME66 KITB	Complete Kit Built & Tested	$NA

The Multiplier is suitable for use as an ATV multiplier to 2.4GHz, or local oscillator for transverter or receive converters. The multiplier can be used as either a 2X, 3X, or 4X multiplier for output within the 1850 to 2256MHz bandwidth of its 1/2 wave band pass filters.  The Multiplier uses 2 x ERA Amplifiers to produce up to +8dBm output.

The 1/2 Wave Tuned filter design of the EME139 is larger compared to other designs using trimmer capacitors & tuned PC board lines, but it requires no tuning & guarantees a clean local oscillator output with no test equipment required.

The single filter & Spur output is acceptable for most local oscillator applications for use with transverters & Receive Converters. For increased filtering for transmitter use EME139 KIT3 which includes an extra PCB as a second filter, & connect the two boards together back to back.

The EME65, 500MHz oscillator is suitable for driving the Multiplier. The complete Kit includes the PC board, & all onboard components, & 9 volt regulator. The Kit requires miscellaneous hardware, ( Tinplate strip, SMA connectors ) to complete. 

Specifications: Freq Range: 1960 – 2360MHz +/-3dB
Input: 4x 490 to 590MHz +3 dBm
Alternative Input: 2 x 980 to 1180MHz, 3x 653 to 787MHz +3dBm
Output: +3 to +8dBm Depends on Input frequency
Powersupply: +11-15volts 75mA
PC Board Size: 86 x 39mm

Frequency Response & Bandwidth
Output Spurs with +3dBm Input

Construction Pictures EME139 KIT3

IN STOCK

Use the EME139 KIT1 for a Local oscillator for 2400MHz Transverter or RX Converters. For extra Local Oscillator filtering, use the EME139 KIT3which includes an extra EME139 PCB for extra filtering. For 2400MHz ATV, use the EME139 KIT2 which replaces the ERA1 with an ERA5 for more output power. Please note that if you are going to use the EME128 2Watt Poweramplifier which requires < 5mW drive for ATV then use the EME139 KIT1. Instructions are included with all EME139 Kits to cut the board down in size on a bench grinder for 2400MHz use.

Order No	Description	Each
EME139 PCB/2	PC Board & Instructions Only ( Included In Kits )	$ 15.00 AUD
EME139 KIT1	Complete Kit ERA3/1 Multiplier +8dBm out 2400MHz	$ 26.75 AUD
EME139 KIT2	Complete Kit ERA3/5 Multiplier +17dBm out 2400MHz	$ 31.30 AUD
EME139 KIT3	Complete EME139 KIT1 with extra EME139 PCB +7dBm out 2256MHz	$ 36.75 AUD
EME139 KITB	Complete Kit Built & Tested	Not Available

 

The Receiver has been designed essentially for those that want to experiment with 137MHz Receiver design.  The Receiver is suitable for reception of the NOAA & Meteor APT Satellites on the 135 to 141MHz band.  The receiver is designed around the Motorola MC13135P double conversion superhet receiver IC.  The receiver uses a preamplifier for increased sensitivity & a bandpass filter to effectively reject overload from pagers on 150MHz. The receiver has manual tuning & Automatic Frequency Control for frequency stability, & to track the doppler shift of the Satellite.  A squelch & S meter circuit are incorporated in the design.  The circuit board has been designed for easy connection of an PLL Synthesizer for tuning, & a wideband FM IF demodulator for WEFAX reception on 1691MHz with an external Down converter  The basic EME117 KIT includes the PC Board, all onboard components, & requires miscellaneous hardware, box, Speaker, & connectors etc to complete. 

Requires a PC with Sound blaster or similar sound card. 

For Free Software & Weather Satellite Links Click Here

With retuning, this Receiver is also suitable for reception of the 150MHz Narrow Cast FM services in Australia.

Specifications: 
Freq Range: 135-141MHz 
Input Sensitivity 0.25uV for 12dB SINAD   ( -120dBm )
I/F: 1st 10.7MHz 230Khz BW, 2nd IF 455Khz 30Khz BW @ 6dB 
Frequency Tuning:  Varicap tuned VCO with AFC
Audio Output:  Speaker up to 500mW 8 to 32 ohms. 
PC audio output:   Filtered Low Pass for connection to a 
computers sound card. 
PC Board Size 96 x 80mm

For advanced constructors with knowledge on Radio theory & some experience with Radio alignment. An Excellent Project for Schools & University's etc. A Quantity discount is available.

Extra 100Kohm 25turn Trimpots are available to suit extra Weather sat channels.  Only one trimpot is supplied to suit one frequency with the Kit. This Kit has superior performance to Kits currently on sale in Australia. Additional features of a good 137MHz front end & bandpass filter to combat 150MHz pager & 144-148MHz Amateur Band transmissions, & automatic frequency control to track the satellites doppler shift, giving good quality reception with narrow 30KHz FM filtering.

PLEASE NOTE: Mini-Kits is not able to supply 1691MHz Down converters or wideband 10.7MHz I/F for use with GMS-5 & similar Satellites.

We Have Managed to source a large quantity of the MC13135P FM IC to prolong the life of this Kit.

IN STOCK

Order No	Description	Each
EME117 PCB	PC Board & Instructions Only ( Included In Kits )	$NO STOCK
EME117 KIT	Basic Receiver Kit	$ 80.00 AUD
TPM100K	100Kohm 25 Turn Trimpot	$ 1.60 AUD
EME117CONN	Connector Kit Incl 5x 2Way & 2x 3Way Headers & Sockets	$ 3.35 AUD
FS06	F Socket Right Angle PCB Mount  As in Above Picture	$ 5.50 AUD