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Tablerock Shortwave Daddy Operating Manual

Manual is about: usb am/fm/shortwave radio

Summary of Shortwave Daddy

  • Page 1

    Shortwave daddy usb am/fm/shortwave radio assembly and operating manual.

  • Page 2: Tablerock Instruments Co.

    Tablerock instruments co. Please visit our website at: www.Shortwavedaddy.Com for updates and additions copyright 2012 all rights reserved no part of this manual may be reproduced without the express written consent of tablerock instruments co..

  • Page 3: Table of Contents

    Table of contents introduction ......................................................................... 1 t ake a dequate s afety p recautions .......................................................... 1 shortwave daddy features: ............................................. 2 contents of kit: .......

  • Page 4: Introduction

    1 introduction thank you for purchasing the ―shortwave daddy‖—an easy to assemble pc based and usb powered am/fm/shortwave radio kit with many features that will delight both dx shortwave enthusiasts and experimenters seeking to learn more about microprocessor controlled radios. The radio circuit an...

  • Page 5: Shortwave Daddy Features:

    2 6. Quit working for the day if you become tired or inattentive. 7. Never connect the ground header or any connector on the shortwave daddy to a mains ground (outlet plug ground) or mains line connection (outlet plug ―hot‖ terminal—110volts) or the neutral terminal. Connection to a mains ground or ...

  • Page 6: Radio Specifications:

    3 radio specifications: worldwide am band 520khz – 1710khz shortwave band 2.3mhz – 26.1 mhz worldwide fm band 64mhz – 108 mhz advanced am/fm/shortwave seek tuning am/fm/shortwave digital tuning seven selectable am/shortwave channel filters (1khz, 1.8 khz, 2khz, 2.5khz with gradual roll off, 3khz, 4k...

  • Page 7: Radio Ic:

    4 radio ic: radio functionality is achieved through the use of the silicon labs si4735 broadcast radio receiver ic (integrated circuit). The si4735 is a digital cmos am/fm/shortwave radio receiver ic that integrates the complete tuner function from antenna input to audio output. Usb audio codec: the...

  • Page 8: Contents Of Kit:

    5 contents of kit: quantity description 1 printed circuit board 3 .1uf capacitor 3 .22uf capacitor 1 .47uf capacitor 1 .022uf capacitor 6 1.0uf capacitor 1 2.2uf electrolytic capacitor 2 15pf capacitor 3 18pf capacitor 2 22pf capacitor 1 33pf capacitor 2 330pf capacitor 2 1800pf capacitor 5 10uf ele...

  • Page 9: Quantity

    6 quantity description 10 10k resistor 4 12k resistor 3 22k resistor 2 22 resistor 2 100 resistor 1 lcd contrast resistor 1 .18uh inductor 1 4.7uh inductor 1 220uh inductor 2 1n5819 diode 1 12.000 mhz crystal 1 20.000 mhz crystal 1 32.768 khz crystal 1 3.5mm antenna jack 1 bnc jack 1 usb type b conn...

  • Page 10: Quantity

    7 quantity description 1 lcd display 1 10 key keypad 1 opa2353 pcb sub-assembly 1 pcm2906 pcb sub-assembly 1 si4735 pcb sub-assembly 1 pic18f2550 microprocessor 4 14 pin male headers 2 4 pin male headers 8 mounting hardware (spacers, sleeves, washers, 2-56 x 7/8‖ screws and nuts).

  • Page 11: Assembly Instructions:

    8 assembly instructions: tools and materials required for assembly: soldering iron solder (radio shack 62/36/2 rosin-core solder .022 diameter, part number 64-013 or equivalent) tip tinner and cleaner (helpful to clean soldering tip; radio shack part number 64-020 or equivalent) flux (radio shack ro...

  • Page 12: Take A Leisurely Pace

    9 5. Wash your hands after you finish work for the day or before eating or drinking. 6. Quit working for the day if you become tired or inattentive. 7. Never connect the ground header or any antenna connector or any part of the shortwave daddy radio to a mains ground (outlet plug ground) or mains li...

  • Page 13: Step 1:

    10 step 1: 1. Without soldering any components, insert all of the resistors, capacitors, inductors and diodes into their locations on the pcb in accordance with the values printed on the pcb next to the number of the component. (figure 1) when inserting each component, make sure that the component i...

  • Page 14

    11 figure 1 figure 2.

  • Page 15

    12 figure 3 figure 4.

  • Page 16

    13 3. Starting from one end of the reverse side of the pcb, solder all of the capacitors, resistors, diodes and inductors. 4. Using a wire cutter, trim the excess length of the components leads. Be careful not to cut the solder joint. (figure 5) it is acceptable for the residual component lead to pr...

  • Page 17: Step 2:

    14 step 2: 1. Insert the 20.000 mhz, 12.000 mhz and 32.768 khz crystals (xtal) and apply a small amount of flux on the bottom solder hole where the leads protrude. Then, solder the 20.000 mhz, 12.000 mhz and 32.768 khz crystals and trim the excess length of the crystal leads on the bottom of the pcb...

  • Page 18

    15 figure 7 7. Insert the six pin male programming header, apply a small amount of flux on the bottom solder holes where the leads protrude and solder the programming header. 8. Insert the two pin male ground header, apply a small amount of flux on the bottom solder holes where the leads protrude an...

  • Page 19: Step 3:

    16 figure 8 step 3: 1. The next step requires handling and soldering of the si4735, pcm2906c and opa2353 pcb sub-assemblies. Special note! The si4735, pcm2906c and opa2353 pcb sub-assemblies are susceptible to damage from esd (electrostatic discharge). Esd is more commonly known as static electricit...

  • Page 20

    17 2. Although not absolutely necessary, the use of a breadboard makes soldering the male headers to the pcb assemblies much easier. If you have a breadboard, insert the 14 pin male headers on the breadboard such that the pcb sub- assemblies can be inserted on top of the male headers. (figure 9) aft...

  • Page 21

    18 figure 11 if you do not have a breadboard, take care that the male headers are soldered to the pcb sub-assemblies such that the headers are perpendicular to the pcb sub-assemblies. 3. Familiarize yourself with the location of pin 1 of each of the pcb sub-assemblies. Pin 1 is labeled on each pcb s...

  • Page 22

    19 figure 12 5. While observing proper esd procedures (see special note above) insert the pcm2906c pcb sub-assembly on the main pcb. (figure 13) the pcm2906c pcb sub-assembly is oriented with pin 1 on the right hand top side of the pcb sub-assembly. It may be helpful to use a piece of blue painter’s...

  • Page 23

    20 6. While observing proper esd procedures (see special note above) insert the opa2353 pcb sub-assembly on the main pcb. (figure 14) the opa2353 pcb sub-assembly is oriented with pin 1 on the right hand bottom side of the pcb sub-assembly. It may be helpful to use a piece of blue painter’s masking ...

  • Page 24: Step 4:

    21 step 4: 1. Apply flux to the 16 gold colored solder pad holes on the lcd display on the side where the screen in located. Then, insert the 16 pin male header into the solder holes of the lcd such that the long side of the male header protrudes on the side opposite the lcd screen. (figure 16) sold...

  • Page 25

    22 connector, stand the pcb up vertically in the alcohol and use an old toothbrush or stiff paint brush to thoroughly clean all flux and solder residue from the rear of the pcb. (figure 17) take your time and clean both sides. 5. After cleaning is completed, thoroughly dry the pcb and all connectors...

  • Page 26: Step 5:

    23 step 5: 1. Insert the (5) tactile momentary push-button switches into their solder holes on the man pcb. Four (4) of the push-button switches are installed at the bottom right hand corner of the pcb and one push-button switch (reset switch) is installed at the top right hand corner of the main pc...

  • Page 27

    24 care that you do not bend or misalign the pins with the holes of the dip socket. 6. The keypad and lcd are each mounted to the main pcb with four (4) 2-56 x 7/8‖ screws, sleeves, spacers, washers and nuts. 7. Insert a screw into a sleeve and then push the screw and sleeve up through the bottom of...

  • Page 28

    25 figure 21 8. Insert the keypad male pins into the seven (7) pin female header. The keypad mounts on the four (4) mounting screws. It may be necessary to slightly loosen the mounting screws to properly align the keypad holes. Secure the keypad with a nylon washer and a 2-56 nut on each mounting sc...

  • Page 29

    26 figure 23 10. The completed radio is shown in figure 24. Figure 24.

  • Page 30: Operational Instructions:

    27 operational instructions: connecting to windows pc or laptop: 1. Plug a set of unshielded ear buds into the 3.5mm antenna jack to serve as an initial antenna or use the bnc connector to connect an antenna to the radio. Note: the 3.5mm jack can only serve as an antenna jack. It is not a headphone ...

  • Page 31

    28 figure 26 6. At this point the band mode must be chosen. Push the first push-button (labeled am mode) for the am/shortwave band. The lcd display will flash ―changing to am mode‖ 7. Test the operation of the pc or laptop’s speaker sound system as follows: enter the frequency on the keypad for a kn...

  • Page 32

    29 click on ―properties‖ in the lower right-hand bottom of the screen click on the ―listen‖ tab make sure the ―listen to this device‖ box is checked click on ―apply‖ at the bottom of the screen click on the ―advanced‖ tab click on the drop-down menu and change the sample rate to ―2 channel, 16 bit, ...

  • Page 33

    30 swap input_device and output_device with the text you copied from paman. 4. The audio should start playing over your computer’s speakers. 5. There are other possible methods of connecting the radio to linux systems. If you have developed your own method, please contact us and we will post it on t...

  • Page 34: Shortwave):

    31 restart the computer. After the computer starts, windows will automatically scan for hardware changes and reinstall all the usb controllers that you uninstalled. Check the shortwave daddy to see whether it is working changing to am mode (which also includes shortwave): 1. Push the first (1 st ) p...

  • Page 35

    32 entering a frequency on the fm band: 1. After choosing fm mode, enter the desired frequency in a five (5) digit format on the keypad. 2. To enter an fm station frequency such as 96.90 mhz, enter 09690 and then press the ―#‖key. To enter a higher fm frequency such as 100.50 mhz, enter 10050 and th...

  • Page 36: Filter:

    33 changing the bandwidth for the am/shortwave channel filter: 1. While in am mode, the bandwidth of the am/shortwave channel filter can be changed from the default bandwidth of 2 khz. 2. There are seven (7) options. At any time while in am mode , the bandwidth can be changed by entering the applica...

  • Page 37

    34 2. While in fm mode, rds information about the type of music played or the format for the fm station, along with the call letters for the station will be displayed. (figure 27) figure 27 3. If the snr (signal noise ratio) of the station is less than approximately 15, the rds data will not be disp...

  • Page 38

    35 the user’s own program to take advantage of the many features which the silicon labs si4735 ic can implement. 2. The program which is pre-loaded on the pic18f2550 was written in c . The user may prefer to write their own program using another language, such as basic. The in-circuit programming he...

  • Page 39

    36 6. The six (6) pins of the programming header are labeled on the main pcb using the standard microchip in-circuit protocol. Antenna and ground connections: 1. The shortwave daddy has two (2) connectors for the use of a variety of antennas along with a two (2) pin male ground header for the connec...

  • Page 40

    37 figure 30 5. The user may also connect an external ground for better reception, especially when an outside aerial is used. The 2 pin male ground header is located above the lcd and to the right of the 3.5mm antenna jack. In figure 31, the yellow cable is connected to the ground header. Figure 31 ...

  • Page 41: Reset Push-Button:

    38 neutral connection may result in a serious electrical shock to the user which can cause serious bodily injury or death. Reset push-button: 1. At any time, the circuit can be reset by pressing the push-button located at the top right-hand corner of the main pcb. 2. Pressing the reset push-button w...