Rig - Computer CW Interface
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 square28_yellow.gif We have added CW sending features including real time keyboard, pre-programmed strings and even on-the-air code practice modules to all of the logging programs. To send CW using our software, connect your computer to the rig via either the computer's serial or parallel (printer) ports. The software uses either the RTS Line or the DTR Line of the serial port or the parallel port to send the key down command.

 square28_yellow.gif If you would like to make your own interface, below are two schematics for building an interface using the RTS line. Any transmitter that uses a "connect to ground to key" jack can use either of these schematics. Thanks to Bob, N3UR, for providing these schematics!

Direct Keying Schematic

 
(The resistor value is 4.7k)
 

Optic Coupling Schematic
(Electrically separates the computer from the radio.)



 Parallel (Printer Port) Schematic

 

 
 square28_yellow.gif If you would like to purchase an interface, we have found a great supplier who is willing to help you out! W1GEE Products provides both PC Serial and Parallel Keying Modules. The serial module has been designed to provide a hardware link to the transceiver from your computer's DB-9 serial port using the DTR (pin 4 of the DB-9 connector) lead as the active signal and SGND (pin 5) as reference ground. The parallel module uses pin 17 as the active signal and pin 1 as ground.

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 square28_yellow.gif Using N3FJP software programs, you can use the computer to replace the transceiver's straight key to send code. A separate key is no longer required; although one can be connected in parallel with the keying plug if desired. Please note that these units replace the STRAIGHT KEY. To function properly, you must turn off the transceiver's automatic keyer and plug the unit into the STRAIGHT KEY socket. Keying is accomplished by the tip and sleeve of the Keying Module plug in the same manner as a straight key would do.

square28_yellow.gif Product Purchase Options

  mail10.gif Please send Cash, Check, or Money Order payable to G. Scott Davis to purchase these products.
 
 
square28_red.gif Please add $5.00 for shipping/handling per order within the United States.

 square28_red.gif Drop ship orders outside the US are shipped via Air Post. Please add $10.00 shipping and handling per item for international orders.

 square28_red.gif Please be sure to include your call sign and e-mail address with your request so we can process your order promptly! Send to the address below:

G. Scott Davis, N3FJP
118 Glenwood Road
Bel Air, MD 21014-5533

 creditcard_master.gif  To purchase by credit card via PayPal, please click an icon below. Be sure to include your call sign in the message section! PayPal will send you a Receipt of Payment within minutes of your transaction. When we receive Notification of Payment from PayPal, we will promptly forward your order to W1GEE via e-mail. If you have not received a confirmation within 24 hours, please send us an e-mail.

 square28_red.gif A $5.00 shipping/handling fee has been added to the purchase price below for single US orders.

 square28_red.gif If you are ordering multiple products to be shipped to the same address, or you are located outside the US, please click this link: Hardware to place your order.

 square28_red.gif These products are manufactured by W1GEE and will be shipped directly from him. Any questions regarding these products should be e-mailed to w1gee@yahoo.com.

PC Serial Keying Module - $30.00

PC Parallel (printer) Keying Module - $30.00

 

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