| Author |
Message |
    
Czar
| | Posted on Saturday, October 05, 2002 - 4:33 pm: | 
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We are running slow scan on this freq today. |
Znut
| | Posted on Sunday, October 06, 2002 - 11:00 am: |
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Czar,
I hope to hear more about SSTV on here. I will hook up my radio if it seems like some of us will be able to send and rec. You really can't count on just being able to hear it by ear. If you get right on freq though you can pull out images even when pretty far down in the mud!
Znut |
bruce
| | Posted on Sunday, October 06, 2002 - 8:05 pm: |
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znut what are you using to do this ??? i ran ATV back 30 years ago on 432 with a WW2 idcone tube a ancent vidicone idea very poor like 200 * 100 not the 540 you get today my web cam has 100X the picture let me know and ill lissen for you. |
Znut
| | Posted on Sunday, October 06, 2002 - 10:08 pm: |
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Bruce,
I run SSTV (digital, one picture at a time, still frame) on 6 meters with MMSSTV software. If I hear someone on USB on 11 meters I will try to copy and send a picture back. MMSSTV is free to download.
By the way, 6 is WIDE open tonight. So is 10 and 11.
Take care,
Znut |
2ec837
| | Posted on Tuesday, October 08, 2002 - 2:57 pm: |
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When 11 meters is open to Europe,check 27.770 for slow scan. |
Insider
| | Posted on Tuesday, October 08, 2002 - 5:36 pm: |
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Sorry to ask, but what would I need to receive SSTV images with a Kenwood TS-940? |
Znut
| | Posted on Tuesday, October 08, 2002 - 6:39 pm: |
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Insider,
To receive? A patch cord from radio shack with 1/8 plugs on each end and a program called MMSSTV which is a free download. Get a splitter so you can connect your external speaker output to your mic input on your soundcard AND a speaker. The speaker is so you can find SSTV signals fast. You'll learn the distinctive sound.
http://www.qsl.net/mmhamsoft/mmsstv/
When you get ready to set up the software I will try to help, but I had some help to set mine up. MSN or Yahoo messenger will be helpful so we can go through it in real time.
If you decide you want to send pictures you can build an interface, but MFJ makes a sound card interface that's $89.99 and includes software galore for many digital modes and will plug into you rig (8 pin mike, right?). I built mine but I have to throw switches to send/receive and I don't really have the RF totally isolated. I get noise from the computer on my 6 meter rig.
Take Care,
Znut |
707
| | Posted on Monday, October 14, 2002 - 3:53 pm: |
|
Here's something that works for those who want to keep the rig electrically isolated from the computer:
Go to RadShack and get two (2) "telephone pickup coils" , the ones with the little suction cup on it. They cost about $5 or less (any brand will do, but RadShack usually keeps them in stock. I have seen them for a couple of bucks at KMART, WALMART, etc. as well in the past)
Stick one to the front of your speaker grill or the back of the speaker magnet, and plug that one into the MIC or LINE input on computer(this will depend on your soundcard). This is to get sound from the radio into the computer.
Stick the other one to the front of your mic or if it has a plastic body, it might work stuck to the back. This depends on your mic. Plug this one into the SPKR or LINE out on your computer. This is to feed sound to the radio for transmitting.
These coils work by inductively coupling to the speaker or microphone coil they are in proximity with. THIS WON'T WORK WELL WITH A CONDENSOR TYPE RADIO MIC.
I've used this setup for RTTY and SSTV and it works well. Granted, you have to listen to the receive warbling, but the coil will pick it up even when the speaker is turned down quite a bit, especially if you are using the MIC input on the computer.
There is another style of phone pickup coil that is shaped like a ring, designed to go around the "dogbone" type telephone handset. This may work better for you, but it all depends on the type of radio speaker and type of microphone you are using.
It's cheap, it's not permanent, and you will eliminate a lot of potential noise interaction between your radio and computer. |
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