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'Rooster' CW Transceiver
Kit Manual and User Guide
Rev3 22/11/2023
Easy Build 40m Crystal 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 Watts RF Output
Active Audio Filter
Pleasant Sinewave CW Sidetone
Visual RX/TX indicator
10-14v DC Operation
Supplied with Strong Aluminium Case
nd
Rooster CW Transceiver Rev3
Page 1 of 26
22
Nov 2023
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Summary of Contents for Kanga Products Bassinet
- Page 1 ‘Rooster’ CW Transceiver Kit Manual and User Guide Rev3 22/11/2023 Easy Build 40m Crystal 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.
- Page 2 Introduction Welcome to the Rooster. The Rooster is designed to be a single evening project that will be fun to build and even more fun to use. The Rooster is intended to be a replacement for the FOXX3 kit Kanga offered for many years. The FOXX3 was very popular but had a few issues that we wanted to address with its replacement.
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Page 3: Parts Inventory
Parts Inventory The parts are presented in a long strip of clear tubing, separated in sections. Each section covers a small number of stages in the instructions, only open the section you are working on at that time so you don’t lose any parts. Start at the end with the DC connectors and 3.5mm PCB sockets. - Page 4 Important The Rooster is a relatively easy to build transceiver BUT you need to carefully follow the instructions, do not move on a stage until you are sure that you have completed the previous stage correctly and fully, all parts must be fitted neatly and their leads trimmed flush.
- Page 5 Stage 1 :- The DC input socket The first part of the build is to fit the DC socket. The socket must be fitted so that its flush to the board and level with the edge of the PCB, the position for this is labelled PWR on the board.
- Page 6 Testing your work Ok we have only fitted one part but that will allow us to do some basic testing on the board. We can test the voltage regulator and DC distribution now. I suggest using a current limited supply if you have one and monitor the current the board draws.
- Page 7 Stage 2 :- Phones and Key sockets The two jack sockets are used for the key and the headphones. They fit right on the front edge of the PCB. Both sockets are the same type. Fit them one by one. Make sure that all the pins pass though the board and none are...
- Page 8 Now we can perform the ‘Buzz’ test With the headphones connected, touch the board with a metal 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.
- Page 9 Stage 3 :- Side Tone The Rooster has a sine wave sidetone generator, much more pleasant than many radios. The first part we need to fit is a capacitor C16 C16 is a yellow capacitor with a 2.54mm pin spacing, The value of this capacitor will adjust the volume of the sidetone, we have used a value of 0.01uf for this.
- Page 10 Solder the centre pin first and check the alignment of the transistor it should sit nice and square on the board. When your happy it looks right, solder the other two pins and trim the leads flush. Now we can test the sidetone circuit.
- Page 11 Next we need to fit the trimmer capacitor. Its colour may not be as shown in the photos here (if you not reading black and white paper instructions!) Important! The trimmer has one flat edge, that should be positioned next to the crystal as shown here, don’t worry, you haven’t missed fitting the crystal we will do that next.
- Page 12 Now with great care solder the pins to the top of the adapter board. This should be no harder to do than soldering the socket to the main board you did earlier. Double check you have no solder bridges between pins when you are 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!
- Page 13 Stage 5: Driver and PA Protection Diode You may want to unplug the chip so you don’t damage it while fitting the remaining parts. Now fit Q5 transistor, make sure it is the right one, it should be a 2N4401. Check the printing on the flat of the transistor.
- Page 14 Stage 6: Fitting the 5 inductors This stage is the easiest to make a mistake with so read and then re-read this section before you fit any. There are 5 inductors and unfortunately most are very similar in colour bands. We need to be 100% sure that the right one is used in the right place.
- Page 15 Now you know the values read this section again and this time fit each inductor one by one. To fit them you will need to bend the leads of each inductor at 90 degrees right next to the body as shown here they will then fit correctly on the board.
- Page 16 Stage 8: RIT Control The RIT tune control. First remove the nut and washer from the front of the control, make sure the 3 pins are not bent over and insert it onto the board, push the control down so the body is flush to the board.
- Page 17 the solder again on the lug and reposition, when happy solder the other lug and then solder the tacked lug fully. Again, be careful this will be hot for some time afterwards. Stage 10: Testing and Alignment Time for some testing and alignment. Like all the tests so far, I would recommend a current limited power supply, up to now you could expect a max current of 25mA, now you will need to set the limit up a little to 100mA as we have the driver stage installed and will be testing the transmit chain.
- Page 18 You should be able to bring the Rooster onto 7.030Mhz on the remote radio. The tuning will move slightly when we fit the PA transistor later as the loading on the oscillator will change but for now this will be ok. Now connect the remote rig to a dummy load, no need for an antenna on the Rooster, transmit a CW signal on the remote rig (set the power level as low as you can).
- Page 19 Aline the rear panel so the DC connector is in the centre of the power hole in the rear panel, carefully solder the centre pin of the PA transistor and recheck the correct fitting of the panel, resolder that transistor pin if you need to make adjustments.
- Page 20 Stage 13: Tidy up the PCB Now fit the front panel to the case using two black M3 screws. Check the panel is correctly aligned on the case. Do not fully tighten the panel just yet. VERY IMPORTANT Now before you put the board into the case a job.
- Page 21 seen between units, this variation will only be 1dB or so and will not be noticeable to anyone receiving your signal. Current draw will be around 20mA on RX, and 400mA TX (@12v) Now connect the Rooster to an antenna. If nothing else you will hear band noise. Adjust the RIT to vertical and call CQ, if called back adjust the RIT for best reception and enjoy the QSO.
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Page 22: Circuit Diagrams
Circuit Diagrams Rooster CW Transceiver Rev3 Page 22 of 26 Nov 2023... - Page 23 Rooster CW Transceiver Rev3 Page 23 of 26 Nov 2023...
- Page 24 Rooster CW Transceiver Rev3 Page 24 of 26 Nov 2023...
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Page 25: Board Layout
Board Layout Rooster CW Transceiver Rev3 Page 25 of 26 Nov 2023... - Page 26 Notes If you don’t like using headphones, then the audio output can be fed to a small audio amplifier, I use the Kanga Desktop Bench amplifier for this as its fully self-contained and works perfectly with the Rooster. Always use an Antenna with a low SWR. Simple antennas like an end fed half wave are a great choice to use with the Rooster.