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Author Topic: Mysterious tone board!  (Read 632 times)
KC4HGH
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Posts: 34




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« on: November 23, 2004, 06:46:27 PM »

I just dug my Kenwood TR-7850 out & am about to install it in my current vehicle.  This radio has a 5-DIP switch tone board installed and I think it was toned at 123.0 Hz when I was on the repeaters 8-9 years ago.  Since I was off (raising small kids), the repeaters have been changed to 203.5.  Is there any way to figure out a tone for the latter freq on this mysterious, mfr.-unknown board?  Thanks!  Bud
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W7DJM
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Posts: 1




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« Reply #1 on: November 23, 2004, 07:35:04 PM »

The most popular aftermarket tone boards were "Comm Spec"  or "Communications Specialists"

http://www.com-spec.com/ss64.htm


Without a number off the board or a picture, I don't know what to tell you.
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N8UZE
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Posts: 1524




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« Reply #2 on: November 24, 2004, 06:08:04 AM »

Radios have improved over the last 8 to 10 years.  I'd recommend getting a new radio (as far as I know, all the new ones already have a tone board built in and it is controlled by menu driven circuitry not dip switches).  You can get a brand spanking new 2m mobile for under $200.  You can get a dual bander (receiving one band at a time) for under $300.  You can get a dual bander with simultaneous receive for under $400.
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KC4HGH
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« Reply #3 on: November 26, 2004, 07:30:56 PM »

Well, I'll be...thanks, W7JDM- I reopened the cover & removed some tape I previously missed on the module's IC and there was, "Com-Spec IC701 H8041"!  I'll go to the website you suggested & check it out.  I wish I had digital camera capabilities, so I could send a picture, but you may have hit it on the head!

As for N8UZE: I am a hard-working husband and father of a teen & a preteen.  My budget, therefor is VERY tight and I cannot afford to just go out & buy what I want!  I have either traded, haggled, done work in trade, homebrewed or otherwise worked out how I could get what I could not otherwise afford!  I thought that was part of what Ham radio was all about...?  Thanks anyway....
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N8UZE
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Posts: 1524




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« Reply #4 on: November 27, 2004, 07:10:49 AM »

Of course ham radio is about many things.  I was just pointing out that costs may be lower than you think and there are benefits to new gear.  Sometimes tracking down older gear and then fixing it as is so often needed ends up cost as much or more than the new gear.

By the way money is tight here too as I'm also a parent.  One of them is a teenager and while I provide the necessities, she has to pay for her own non-necessities such as car, insurance, cell phone, video games, clothes beyond the basic wardrobe and so on.
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KC4HGH
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Posts: 34




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« Reply #5 on: November 27, 2004, 04:13:10 PM »

N8UZE, please forgive my rant- as my kids are still young, neither contribute monetarily and it's hard to get them to do their chores!  Needless to say, I'd have to scrimp HARD to buy & justify something other than the necessities.  BTW, I just found a paper where I had talked w/a Com-Spec tech years ago...123.0 was a tone used here, but repeaters were changing to 203.5 and he'd given me several freqs to program, 203.5 one of them!  Thanks for the direction, Bud
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