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Author Topic: software name/type for "...direct-keying..." of CW ?????  (Read 5456 times)
KC8Y
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Posts: 243




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« on: February 15, 2014, 07:02:41 AM »

Sure hope I placed this in the correct forum !!!

I want to do "direct-keying..." of my IC-7410 for cw.  Have FLdigi software, BUT it only does modulated CW, that I do not want.

What name/type of software DOES DO "...direct-keying..." of a rig Huh?

Ken KC8Y
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PA0WV
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Posts: 133




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« Reply #1 on: February 15, 2014, 07:45:50 AM »

Yes,

I understand your confusion I suppose so.

You can key a transmitter ( I suppose an IC7410 is an appliance  transmitter) with a straight key, a cootie or a bug, that means the transmitter is transmitting a carrier when the key is on (pressed) and the the transmitter is not transmitting when the key is off (not pressed).

Then you have the next case of a built in keyer or an external keyer.

When you close a contact (there are 2 of them) to the central ground on the input of the keyer the transmitter starts dah dah dah dah as long as you keep the contact closed. There is also a dit contact. When you close that to ground the transmitter starts dit dit dit dit as long als the contact is closed.

Of course here is a third possibility: to close both contacts of the internal or external keyer to ground simultaneously. In that case you get dit dah dit dah dit dah as long as you keep the contacts closed.

You start this sequence with a dit when you close the dit contact just a little bit to ground before the dash contact.

Now what you want, I suppose is a keyboard entry. There is software available that transforms keyboard input to perfect Morse code, that will key your transmitter on and off just like a straight key could do. However you need some interface between your keyboard and the transmitter keyer input.

Look t the website of K1EL.

What you want is sending code by a keyboard and receiving code by your computer with Flidigi.

OK, perfect, it keeps the sigs in the air.

Purpose of ham radio is to investigate, so try also PSK31. Theory says that sending and receiving PSK31 by computer will be superior in performance by receiving CW by computer.

PAoWV 73=30
« Last Edit: February 15, 2014, 08:07:53 AM by PA0WV » Logged

Using an appliance without CW is just CB
KC8Y
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Posts: 243




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« Reply #2 on: February 15, 2014, 09:14:10 AM »

RE: PA0WV thank you for your reply back.

I have already done PSK & Olivia-they both are great Smiley
My interface is the Signalink USB; it's between the rig & PC-use FLdigi  software for those modes.

Have the cable for the Signalink that preforms direct-keying for my rig  What I NEED is the software that preforms "...direct-keying..."  NOT mcw.

Ken KC8Y
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DJ1YFK
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« Reply #3 on: February 15, 2014, 09:27:41 AM »

I want to do "direct-keying..." of my IC-7410 for cw.  Have FLdigi software, BUT it only does modulated CW, that I do not want.

What name/type of software DOES DO "...direct-keying..." of a rig Huh
CWtype by UA9OV (http://dxsoft.com/en/products/cwtype/) is one of many programs which do this. Also most logging software, especially contest loggers have such functionality built in.
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AA4PB
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« Reply #4 on: February 15, 2014, 10:15:59 AM »

What cable for the SignaLink-USB does direct CW keying? I've seen a modification for the SignaLink-USB that converts the keyed audio tones to a keyed CW output that can directly key the transmitter. In that case you sill set the software for AFSK audio tones like you normally do with FLdigi. I'm wondering if your "cable" does something similar with the conversion being done in the cable.

Most direct keying software does so by keying one of the control signals on an RS-232 serial port. You then have to build a hardware interface to convert the RS-232 voltage levels to and open-collector output to key the key input on the radio.

I think that the latest version of FLdigi is capable of controlling a WinKeyer. The WinKeyer takes ascii text characters in via RS232 and converts it to a keyed CW output that can directly key the radio.

Correction: What I was thinking about was the direct FSK mod for the SignaLink-USB described in May 2013 QST. The same type of thing could be done with direct CW keying however.
« Last Edit: February 15, 2014, 10:28:26 AM by AA4PB » Logged
AA4PB
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« Reply #5 on: February 15, 2014, 10:39:19 AM »

Take a look at: http://www.tigertronics.com/slusbts.htm#How do I operate "direct keyed" CW with the SignaLink

This describes using the Signalink PTT control (which is keyed via the audio tones) as the direct CW key output. In that case you still configure the software for MCW tones like you normally do with FLdigi. The transmitter however is placed in CW mode so there is no audio input but the PTT is wired to the CW key jack in lieu of the PTT input. Each time the SignaLink outputs a CW tone, the PTT is keyed and that keys the CW jack input on the radio.

Note that the maximum speed for doing this is about 25WPM because of the limitations of the PTT circuit in the SignaLink.

Also note that because the transceiver is in CW mode it will transmit on the dial frequency regardless of what the waterfall shows. That means that the signal must be tuned with the dial until it is the same frequency tone as the sidetone if you want to respond on his frequency. You can't just click anywhere in the waterfall when using the radio in CW mode. I'd find a steady signal and tune it with the dial until it matches the sidetone and make a note of where that appears on the waterfall. From then on tune the band with the dial until the desired signal falls on that same spot on the waterfall. Then you will answer him on his frequency.

« Last Edit: February 15, 2014, 11:17:50 AM by AA4PB » Logged
N0IU
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« Reply #6 on: February 15, 2014, 04:53:49 PM »

This is one of the reasons I don't use FLDIGI. I (still) use the free version of HRD and it does direct-keyed CW. I also have an IC-7410 and the only limitation of HRD is that CW keying can not be done on the same port as the CI-V, which in my case is the direct USB connection.

Now I suppose you can use a USB-to-serial conversion cable, but I have a dual port serial card in my PC. The "interface" is just a single transistor and resistor built "dead bug" style on the back of the DB-9 connector.

The circuit is described here: http://www.aa5au.com/rttyinterface.html
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KC8Y
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« Reply #7 on: February 15, 2014, 05:59:29 PM »

RE:  AA4OB, per tigertronics tech/sales help, "...you can use the SLCABNC cable to build your own CW cable for direct keyed CW..."

 More info  at www.tigertronics.com.  Go Troubleshooting Technical FAQ, and Operating Tips.>>>space down to #1 How do I direct keyed with the Signalink. Pick this #1... and read.  It gives wiring procedure.

Ken KC8Y
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AA4PB
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« Reply #8 on: February 15, 2014, 07:22:03 PM »

If you are using the Tigertronics tip to use the SignaLink-USB PTT circuit for direct CW keying then you MUST use software set to MCW, exactly as you would if you were feeding the audio tones into a SSB transmitter. The SignaLink method of direct CW keying will NOT work with software configured for direct CW keying. That type of software requires a transistor keying circuit that interfaces a serial port control pin to the radio's key jack.

Your FLdigi software should work with the SignaLink direct keying method since it uses the MCW method of keying that the SignaLink requires.

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VA7CPC
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« Reply #9 on: February 15, 2014, 09:54:40 PM »

Because of the time delays introduced by the VOX PTT circuit, the SignaLink isn't the best choice for "hard-keyed" CW.   Your characters will be badly-timed.

Use some keyboard software -- CWType, or DM780 (part of HRD), with a direct-keying interface, e.g.:

. . .    http://w3yy.com/fsk.htm

The "one-transistor keying circuits" are also possible.

Or use an ASCII-to-CW keyer:

http://k1el.tripod.com/wkusb.html

K1EL Winkeyer USB  is a superb product.  It takes a few hours to assemble (through-hole soldering on a printed-circuit board).  Very popular among CW contest operators.  It has its own (very simple) keyboard-to-CW software, and is supported by many contest-logging programs.

.       Charles
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AA4PB
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« Reply #10 on: February 17, 2014, 05:47:55 AM »

Because of the time delays introduced by the VOX PTT circuit, the SignaLink isn't the best choice for "hard-keyed" CW.   Your characters will be badly-timed.

I agree that it's not the best choice. However, the timing issue is largely dependent on your keying speed. The closer you get to 20WPM, the worse the timing will be. Since he's already got the SignaLink and the CW cables all hooked up, I'd say go ahead and give it a try. The radio's side tone will reflect the timing errors so you'll be able to hear how it sounds.

Anyway, the answer to the OP is that special "direct keyed" software is not required. He operates the SignaLink in the MCW mode with the existing sound card software.

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WB3CQM
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« Reply #11 on: February 18, 2014, 12:56:49 PM »

Your Solutions plus the one's already suggested .

http://www.polar-electric.com/Morse/MRP40-EN/

http://www.n3fjp.com/

http://www.n3fjp.com/cwschematic.html

http://www.hosenose.com/productgrid_interfaces.aspx?PrimaryCatID=45&

http://www.trlog.com/

http://writelog.com/

http://k1el.tripod.com/     (((( Winkeyer)))))


When I send with a Keyboard the majority of time I am using N3FJP logging software and a W1GEE CW Interface to key the Icom 746PRO . I place the rig menu in SET mode - place menu in Straight key mode. The W1GEE interface has 1/4 plug on  one end of cable  that go's to rig straight key jack  at the other end is interface with 9 pin  that is hooked into the XP computer 9 pin Comport . (sorry if I have these terms wrong )

If you would like to purchase an interface, we have found a great supplier who is willing to help you out! W1GEE Products provides PC Serial Interfaces. 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.

You can either purchase that interface from N3FJP or hosenose>  http://www.hosenose.com/

With my N3FJP logging software I use the F keys like this.

The F12 key place the software into CW or Morse code communications mode .
The F1-F11 keys can be used as memory keys and also to log a contact. For example I use F6 key to send TU log contact then send my call sign .
The Enter key also will log the contact . Now you have a powerful software log and to send perfect cw IF you can type well. If not the F memory keys can be used to help out . Most logging software can be used for every day Morse
code contacts.

73 Jim
« Last Edit: February 18, 2014, 01:03:08 PM by WB3CQM » Logged
AF4RK
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Posts: 39




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« Reply #12 on: February 19, 2014, 07:06:10 AM »

Winkeyer. Works with just about everything. and you can hook up a paddle in parallel. I use Ham Radio Deluxe and N1MM for contesting. Forget MCW. that's for VHF
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