
            Installation of your new N4PY Paragon 1.9 Chip

    To install your new 1.9 chip in your paragon, remove the top
    cover.  If you have a voice board in your Paragon, you will
    have to remove it.  Thsi chip is not compatible with the voice
    board.  Next locate the EPROM chip in the ROM/RAM/RTC board.
    This chip should have a silver label on it.  Gently remove
    this chip with a small flat blade screw driver.

    Once you have removed the old chip, place the new chip in the socket.
    Take care to notice the orientation of the chip in the socket.
    The notch on the chip should point down to the bottom of the radio.
    Also make sure all the pins are in the socket before applying pressure
    to insert the new chip.  Sometimes the new chips have all their pins
    spread apart just a little more than the size of the socket.  You can
    simply lay the new chip on each pin side on a table surface and
    bend all the pins slightly to get the spacing just right.


             Paragon 1.9 N4PY Operational Differences

    Up and Down arrow function -

    The UP and DOWN arrows on the Paragon now work as follows:

    In AM mode, UP and DOWN change the frequency 5 KHZ with FAST
    off and 10 KHZ with FAST on.  The 5 KHZ change is very useful
    for listening to international shortwave broadcast stations.
    The 10 KHZ change is very useful for listening to American AM
    broadcast stations.  SHIFT UP and SHIFT DOWN will move you to
    the bottom of the next higher or next lower AM broadcast
    band.

    In all other modes, UP and DOWN move you to the next higher
    or next lower HAM band.  The location of the band will be
    either the bottom of the CW portion if you are in CW mode,
    the bottom of the phone portion if you are in USB or LSB, or
    the bottom of the RTTY portion if you are in FSK mode.  SHIFT
    UP and DOWN move you up or down 5 or 10 KHZ depending on the
    FAST setting.


    Display of 10 HZ digit -

    The 10 HZ digit is now always displayed.  The SHIFT 10 HZ key
    is no longer functional.


    Initial Conditions from Reset -

    The initial time and date is no longer set.  This causes the
    time and date to be maintained if the rig is reset with the
    reset button on the side of the Paragon.  The 63 memories are
    also no longer cleared at reset time.  The initial frequency
    is 15 MHZ in AM mode with the 6 KHZ filter selected.


    Manual Clear of Memories 0 to 62 and Scratch Pad -

    Memories 0 to 62 and the scratch pad can now be cleared by
    pressing SHIFT followed by PERIOD followed by ENTER.  This
    procedure will be aborted by pressing any key other than
    ENTER as the third key in this sequence.  This will clear all
    the memories and load memory 0 with a frequency of 15 MHZ in
    AM mode with the 6 KHZ filter.  The memory 0 tag will be set
    to your calsign.


    Internal HAM Jumper -

    The internal HAM jumper is no longer tested.  The Paragon
    will transmit anywhere from 1.75 MHZ to 30 MHZ.
                           Page 2

    Set Scan Rate -

    The set scan rate function has been changed.  When SHIFT RATE
    is selected, the current rate is displayed.  To change it,
    press a numeric key (0 to 9) and the new rate will go into
    effect.  The default rate set at reset time is 4.


    Tuning Rates -

    The tuning rate in CW, FSK, LSB, and USB with FAST off is now
    1.2 KHZ per revolution.  All other rates are unchanged.  If
    SHIFT FAST is pressed a new high speed rate of 240 KHZ per
    revolution is in effect regardless of mode.

           Tuning rates are now as follows:

                               CW,FSK
                         STEP SIZE (HZ)   KHZ PER REV

              NORM           2.5             1.2
              FAST            20             9.6
              SH/FAST        500             240


                               LSB,USB
                         STEP SIZE (HZ)   KHZ PER REV

              NORM            10             4.8
              FAST            20             9.6
              SH/FAST        500             240


                                    AM,FM
                         STEP SIZE (HZ)   KHZ PER REV

              NORM            50              24
              FAST           100              48
              SH/FAST        500             240


    AM Frequency Display Offset -

    In order to better place an AM signal in a filter passband,
    1200 HZ is subtracted from the actual carrier frequency while
    in AM mode only.  This causes better audio fidelity when
    using the 2.4 KHZ filter while the display reads the true AM
    carrier frequency.


                           Page 3
    Serial Port -

    The TENTEC CIV command set is now implemented.  The paragon has
    a CIV address of 04.  This is the same as the Icom 735. In addition
    command 14H to set the clock has been added.  The original
    PARAGON commands are deleted.  The implemented commands are:

       00H to 0AH
       0FH to 11H
       14H
       18h

    The 14H sets the time and date.  The format of the data field is
    a 6 byte BCD field of day, month, year, hours, minutes, and
    seconds.

    Also, two commands are added for reading and writing the alpha
    memory tag.  Command 10H read alpha characters for the active
    memory channel.  The data portion returned has a 7 byte ASCII
    file containing the 7 alpha tag characters.  Command 11H writes
    7 alpha characters to the active memory channel.

    Your serial cable must have just 3 wires in it. I made a cable
    with a male DB 25 that plugs into the paragon and a female DB 9
    on the other end that plugs into the PC serial port.  The
    cable is 2 RG/174 cables.  The first cable has the center lead
    going to pin 2 on the DB 25 and pin 2 on the DB 9. The second
    cable has the center lead going to pin 3 on the DB 25 and pin 3
    on the DB 9.  The shields on both cables are connected together
    and go to pin 7 on the DB 25 and pin 5 on the DB 9.


    Memory Clear for memories 1 to 10 -

    The STO ENTER sequence will save the current operating
    frequency and mode in the lowest numbered unused memory.  In
    order to take better advantage of this function, the SHIFT
    LOCK key sequence will now clear memories 1 to 10.  The idea
    here is to use memories 1 to 10 as temporary memories.


    Frequency Scan -

    Store the starting scan frequency in memory 60 and the ending scan
    frequency in memory 61.  Press the VOICE key to start the scan.  The
    scan will begin with memory 60.  The scan will stop on each
    frequency for an amount of time depending on the scan rate
    setting.  In CW, FSK, USB, or LSB mode, the frequency will be
    incremented by 200 HZ if FAST is off, or 1 KHZ if FAST is on.  In
    AM or FM mode, the frequency will be incremented by 5 KHZ if FAST
    is off, or 10 KHZ if FAST is on.  This will continue until the
    value in memory 61 is reached.  At that point the scan will start
    over with the value from memory 60.  The scan will continue
    indefinitely.  To stop the scan, press VOICE.  To stop the scan and
    return to the frequency displayed before starting the scan, press
    CLEAR.


    Receive and Transmit Offset -

    The receive and transmit offset values are now displayed down
    to the 10 HZ digit.
                           Page 4


    Initial Power on with no internal memory saved -

    If the Paragon is powered off and the internal battery is not
    supplying power and the external power supply is not
    supplying power, after about 1 to 2 minutes, the internal
    memory and clock will lose their values.  When power is
    restored, this condition is checked for and if found, all
    memories 0 to 61 and the scratch pad will be cleared.  The
    clock will be set to January 1 at 0100 and memory 0 will be
    set to 15 MHZ, AM, 6 KHZ filter with your callsign as the
    tag.


    New Split Button Operation with Receive and Transmit Offset -

    The split button will now convert split frequency offset
    operation to split frequency VFO operation.  This allows
    better control of both transmit and receive frequencies while
    at the same time allowing an easier method to get to split
    frequency VFO operation.

    With receive offset on, pressing the split key causes the
    active VFO to get the original VFO plus the offset value as
    its new value.  The inactive VFO gets the original active VFO
    frequency.

    With transmit offset on, pressing the split key causes the
    active VFO to remain at its current value.  The inactive VFO
    gets the original active VFO plus the offset value frequency.

    The offset function is then automatically disabled, and split
    frequency operation is enabled.


    Receive and Transmit Offset no longer automatically cleared -

    When the receive and transmit offset functions are turned
    off, the offset value is now saved.  When the offset function
    is turned back on, it will be at its last value.  The clear
    key is used to reset the offset back to zero.


    Memory Tune -

    Only memories 1 to 40 are now scanned in the memory tune modes.
    The other memories are used for frequency scan limits, callsign
    display, and band stacking registers.
                           Page 5


    Special AUX Antenna Control -

    I have installed a relay to switch to a receive only antenna
    jack.  This jack is toggled between enabled and disabled with
    the period key.  An 'R' is displayed after the time to show
    the receive only antenna is connected.  The relay is controlled
    with the receiver blank line (previously unused) to a transistor
    switch to enable or disable the relay.  The receiver blank line
    is labelled "RX BLNK." on page 6-83 of the Paragon schematics.


    New Memory Tune by Mode -

    If memory tune is started by pressing SHIFT MTUNE, the mode that
    was active before the keys were pressed is the mode that will be
    searched.  Only memories that match this mode will be recalled as
    the tuning knob is turned.  To end memory tune by mode, press MT
    to restore the original frequency before memory tune by mode
    selected, or press RCL to stay at the new frequency.


    Memory Tune -

    Memory tune can now be exited and either have the original
    frequency or the new memory tune frequency selected.  Press MT to
    get the original frequency or press RCL to get the new frequency.


    Direct Frequency Entry -

    Direct frequency entry no longer uses the period key.  The ENTER
    key must first be pressed.  For frequncies below 4 MHZ, a leading
    zero must be keyed.  The frequency range of the rig has been
    extended to 32 MHZ.
                           Page 6


    Band Stacking Registers -

    Band stacking registers are now implemented.  Keys 1 to 9
    correspond to band 160M to 10M.  Press the band key to return to
    the last place on that band that the PARAGON was tuned when a band
    key was pressed.  If the band key is the same as the band the rig
    is on, the frequency will alternate on each depression between the
    current and previous frequency for that band.  Band stacking
    registers use memories 41 to 59.

    After a complete memory clear, the band stacking registers must be
    intialized.  Tune any frequency on the 160 M band and press '1'
    two times.  Tune any frequency on the 80 M band and press '2' two
    times.  Continue this procedure up to the 10 M band.  Now the band
    stacking registers will be setup properly.


    Deleted Functions -

    The following functions have been deleted:

       Set Time
       Set Date
       Global Memory Lock
       Global Memory Lock Clear


    Frequency Send -

    Pressing SHIFT A=B will cause the PARAGON to send its frequency
    and mode on the serial port as broadcast packets. This will
    allow logging programs to pick up the address form the radio.

                           Page 7

                   Paragon 32 bit Utility Program.

    There is now a 32 bit utility program that works on any comport.
    To run the utility with comport 1, start the program as "par32".
    To run the utility with comport 23, start the program as "par32 c=23".

    With the program started, you will see 3 menu selections:

    1) Load Paragon memories from file

      This selection will allow you setup all the paragon memories
      from a file.  There is a default file supplied in the zip file.
      The file is called "par19.mem".  You can open this file with
      notepad.  The file is column sensitive so be careful
      not to change the columns that anything is in.  All changes
      should just be by over typing on top of the old characters
      The first thing you should do is change the memory tag in the
      file to your call sign.  You will see "N4PY" as the default call
      sign. Make all your changes to the file and then press F3 to
      save the changes. Next, load this file into the paragon.  It
      will give you initial band register values and memories to
      test out the new memory system.

    2) Save all memories to file

      Once you have your paragon memories just the way you want
      them, this menu selection allows you to save them to a file.

    3) Set Paragon Date and Time

       Running this menu selection cause the current date and time
       in your computer to be placed in the Paragon.  If you want
       the Paragon clock to be in GMT, then set your computer clock
       temporarily to GMT first.
