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Rooster CW Transceiver Rev3

Page 23 of 26

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Nov 2023

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Содержание Bassinet

Страница 1: ...l controlled Transceiver Direct Conversion Design Part Pre installed SMD design Only 20 parts to fit No coils to wind Single Frequency Crystal controlled operation Front panel RIT control approx 2 Wat...

Страница 2: ...nsmitter also shares the NE612 oscillator and buffers the VFO signal before feeding it to a high gain PA stage giving approx 2 watts of RF The kit uses a mix of SMD and though hole parts ALL the SMD p...

Страница 3: ...Q5 1 2N4401 Transistor Q5 Diode 1 44V 1N4755A D3 Parts Pack Section 3 NE602 1 Mixer IC on adapter board IC1 4 Way Strip Pins 2 Mixer Mounting Pin Strips Strip Pins may be fitted to IC1 IC Socket 1 8...

Страница 4: ...miliar with the main PCB You can see many parts are pre fitted for you there are about 20 parts left for you to fit Some of the parts are close together so you will need to take extra care when solder...

Страница 5: ...n first on the bottom of the board and checking the part is correctly fitted once you re happy that it is right solder the remaining two other pins Here is what you should have now The 3 legs are now...

Страница 6: ...lug needed The current consumption should be just a few milliamps the overall finished receiver will be around 20 25mA when complete On the front edge of the board you will see the position for the RI...

Страница 7: ...l not line up with the holes in the front panel later Solder just one pin on each socket first then double check the alignment When sure they are correctly aligned and flush solder the remaining pins...

Страница 8: ...etal screw driver on Pin 5 of the position for U2 If you touch the shaft of the screw driver you should hear a loud buzz in the headphones Repeat the test but this time touch pin 4 of the U2 position...

Страница 9: ...n the board over to solder it Solder one lead first and re check its still sat down correctly on the board When happy solder the second leg and trim the leads flush on the board The next part is a tra...

Страница 10: ...IF you wish you can test the muting circuit too at this time Perform the Buzz test again but while listening to the Buzz tap the key The sidetone should replace the buzz Stage 4 Mixer The Rooster use...

Страница 11: ...eristics are different between the two types you have with the kit For the mixer we need to use the shorter crystal This is to be fitted between the chip socket and the trimmer as shown above The Mixe...

Страница 12: ...e done RF Noise Test Now make sure that the chip is plugged in the socket the correct way round it didn t matter when you soldered the adapter board and pins but it DOES matter now The adapter board h...

Страница 13: ...sure it is fitted to match the outline on the PCB and that it is sat squarely as per the picture here We now will fit a protection diode that will help protect the PA from high SWR This is D6 1N4755A...

Страница 14: ...ge it is hard to remove parts once fitted L1 is a 100uH inductor The inductors used on this kit use the same colour bands as resistor to identify their value so you can use the colour resistor code ch...

Страница 15: ...they will then fit correctly on the board Here are the inductors fitted to the board Make sure yours are fitted flush to the board and that the leads are trimmed flush on the back of the board Stage 7...

Страница 16: ...Socket Now the finial part maybe the hardest to solder The Antenna BNC socket The antenna socket is a heavy item it is made from metal and is really a big heatsink It can be difficult to solder the mo...

Страница 17: ...the this set Select a wide filter BUT be sure you put the radio in CW mode Important Connect the Rooster to the power supply with the key antenna and headphones connected You should now hear at least...

Страница 18: ...PA transistor and the RX TX LED the Rooster PCB is complete Stage 11 Fitting the PA Transistor and rear panel First find the heatsink mounting pad It should be noted that the type of transistor does N...

Страница 19: ...egs each one is a different length When we fit this part the shortest leg MUST be towards the centre of the board You need to bend the legs at approx 13mm from the back edge of the LED s body You want...

Страница 20: ...of 7 030Mhz Set the receiver to 7 030 and adjust the trimmer to correct the frequency You MAY not be able to bring the frequency bang on 7 030 you may only get within a few hundred Herts of that targe...

Страница 21: ...nd frequencies can be used by changing the Crystals if you are only moving by a couple of KHz then you will be ok just changing the mixer crystal Y1 if more then you will need to change all three crys...

Страница 22: ...Rooster CW Transceiver Rev3 Page 22 of 26 22nd Nov 2023 Circuit Diagrams...

Страница 23: ...Rooster CW Transceiver Rev3 Page 23 of 26 22nd Nov 2023...

Страница 24: ...Rooster CW Transceiver Rev3 Page 24 of 26 22nd Nov 2023...

Страница 25: ...Rooster CW Transceiver Rev3 Page 25 of 26 22nd Nov 2023 Board Layout...

Страница 26: ..._______________ __________________________________________________ __________________________________________________ __________________________________________________ _______________________________...

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