![rigblaster jt65 rigblaster jt65](https://www.jeffreykopcak.com/wp-content/uploads/2016/04/receive_level_calibration-03_calibration-02_best_example-855x576.png)
If you hear diddles, you are off to a great start. If you don’t hear diddles or to find out what diddles are, what they do and what they sound like, check out.
![rigblaster jt65 rigblaster jt65](https://slidetodoc.com/presentation_image_h/af9403b03feb689b6f4d8d288128614d/image-5.jpg)
Diddles are a term used for RTTY being transmitted in an idle state. With Monitor turned on in your radio, you should hear diddles in your headphones or coming out of your radio’s speaker. Key your radio by either clicking on the TX button in the main MMTTY window with your mouse or press the F9 key (F9 toggles TX on and off). Put your radio in the LSB position and make sure your speech processor is turned off. Turn your Power output control all the way up and your Mic Gain all the way down. You are now ready to transmit RTTY using AFSK. Select Sound, then click OK to get back to the main MMTTY screen.
#RIGBLASTER JT65 SERIAL#
If you set up to key PTT from a serial COM port in the TX tab, the other options will be available, but for AFSK, you must select Sound. If you clicked NONE as the COM port in the TX window, then you will only have one option in the TX Port section – Sound. When you get back to the Setup MMTTY screen, click on the Misc tab. This way, I don’t have to change the setting in the radio when I switch between programs). (Note: The TS-870 will work with 8 bits, 1 stop bit & no parity with MMTTY, but I prefer to set it to 4800 baud with 2 stop bits because that is what I must use when interfacing my radio to another program. (Note: Most radios will probably communicate using 9600 baud, 8 bits, 1 stop pit, and parity none.) Below are settings I use to control my Kenwood TS-870 transceiver which is connected to serial COM port 4 on my PC.
#RIGBLASTER JT65 MANUAL#
If you are not sure what parameters you need to set, refer to the operator’s manual for your radio. Then go to the bottom of the screen and select which type of radio you are using. When the Radio command screen appears, select the Port your radio is connected to and set the Baud rate, Data length, Stop bit & Parity for what is needed to communicate with your radio. If you are going to use Radio command to key PTT (remember older Icom radios do not support PTT via radio command, for a list of Icom radios that do and those that do not control PTT via radio command, click here), click on the Radio command button. If you are going to use an interface circuit (homebrew or commercial) from a serial COM port to key PTT, you need to set the Port to the COM port number this interface is connected to. If you are going to use VOX or Radio command to key PTT, the Port should be set to NONE.
![rigblaster jt65 rigblaster jt65](https://image.slidesharecdn.com/gettingstartedwithdigitalmodes-150614131309-lva1-app6892/95/getting-started-with-digital-modes-12-638.jpg)
In the upper right hand corner you will see PTT Port. Bring up MMTTY and go to MMTTY setup (Options, Setup MMTTY). Notice that this is the exact same circuit as shown on the previous page to key FSK.īefore attempting to transmit. If you decide to key PTT from a serial COM port instead of using VOX, you can build a simple circuit as shown below and connect it to your COM port. Once you have this cable in place and if you are going to use VOX, you are ready to transmit. Remember, if you hit the mic input with too much audio you run the risk of overdriving and distorting of your transmit signal.Īgain, if you own a RIGblaster, MFJ or Bux Comm interface, this “type” of circuit is already included in the unit. I placed a 47k ohm mini-potentiometer across the microphone input to further reduce the audio going into the transmitter. Even though I use FSK, I do use this circuit when running AFSK for PSK31 operation. Much like receive audio from radio to sound card, the circuit is the same going back the other way for transmit. If you use the Heil adapter, you only need to connect the sound card to the adapter with a male-to-male 1/8″ mono phone plug cable for audio.
#RIGBLASTER JT65 PRO#
(Note: this works for my Icom IC-756 PRO III but does not work for my Kenwood TS-870). Check the Heil Website for more information. If you already own one of these adapters, you’re in business.
![rigblaster jt65 rigblaster jt65](https://image.slidesharecdn.com/gettingstartedwithdigitalmodes-150614131309-lva1-app6892/95/getting-started-with-digital-modes-27-638.jpg)
They make these adapters for most kinds of radios. And for $17 (current price for an AD-1), it sure beats having to find another mic plug or soldering into an accessory plug. They come with a jack for both audio in and PTT. Heil makes these adapters for their headsets. The easiest way I know of to route audio from your sound card to your radio is by using a Heil AD-1 or CC-1 microphone adapter. If not, you will need to run a cable from your sound card to your radio. First off, if you are currently cabled up to run PSK31 (or JT65/JT9 or any other AFSK mode) and can run those modes successfully, then you are already cabled up to run AFSK RTTY.