Tempo 1 and CTCSS tones?

van lincoln vlincoln at POSTOFFICE.WORLDNET.ATT.NET
Fri Oct 3 15:57:42 EDT 1997


         AMEN
..................................................................wd8aam

>Reply-To: bry at mnsinc.com
>Sender: Boat Anchor Owners and Collectors List
<BOATANCHORS at LISTSERV.TEMPE.GOV>
>From: Brian Carling <bry at mnsinc.com>
>To: BOATANCHORS at LISTSERV.TEMPE.GOV
>Comments: Authenticated sender is <bry at mnsinc.com>
>Subject: Re: Tempo 1 and CTCSS tones?
>Organization: Glowbugs
>Date: Fri, 3 Oct 97 20:15:53 +0000
>Priority: normal
>
>Well, since no one has really answered your question about the way
>YOU want to do it....
>
>I will say this - IF the Tempo S1 (note this is an S1 NOT a Tempo 1
>which is an HF xcvr!!) - IF it has a MIC jack on the HT then you can
>inject the tone in a SUMMING circuit along with microphone
>audio and IF the HT does not filter out audio below 300 Hz like
>some rigs do, THEN you will get your CTCSS tone in there, and yes, I
>think it has to be there all of the time. The deviation level should
>be set alittle lower than your voice audio. I think this would be
>do-able with an appropriate cable from the sound card output, and
>that would have to drop the level considerably.
>
>Do you know how to make resistve divider networks (a T pad or L pad
>circuit will do it nicely)??
>
>If so you can connect this to the MIC input and SEE if it works.
>If NOT, then you will have to patch in to the deviation stage after
>the a.f. amplifiers and that could get VERY tricky.
>
>If you are not accustomed to piddling with tiny electronic gizmos,
>then I do not recommend that you try any of the above OR the other
>suggestions that were made. Only an experienced electronics tech
>should take a soldering iron to the insides of a handy-talky! Trust
>me on that one!
>
>73 de AF4K - Bry
>
>On  2 Oct 97 at 20:08, Eugene wrote:
>
>
>> At 01:57 PM 10/2/97 -0700, Matthew Erickson wrote:
>> >Hi All!
>> >
>> >I have an old Tempo 1 Handi-Talkie and it does not have provisions
>> >for the CTCSS tones required to access today's 2-meter repeaters.
>> >
>> >However, I have acquired a computer program which will create, using
>> >the Sound card, all the CTCSS tones one could ever use.
>> >
>> >Is there a more-or-less feasable way to couple the tones from my
>> >computer Sound card into the HT so those CTCSS tones will provide
>> >repeater access? Yes, it would destroy portability of the HT; but, right
>> >now it's useless, anyway.
>> >
>> >If this can be done, for how long are the tones transmitted? One
>> >second, or what? I assume the tones have to be sent each time
>> >you key the HT.
>> >
>> >Anything else I might need to know to pull this off?
>> >
>> >Many thanks for info.
>> >
>> >Rev. Allen
>> >
>> >de:   Allen, KJ6XH      (Kind-a Junky 6 X-rated Hotel)
>> >         and Matthew
>> >          mattall at speedlink.com   or mattall at juno.com
>> >                          BOATANCHORS  LIVE!!!
>> >
>> Allen,
>>
>>    CTCSS stands for Continuously Transmitted Coded Squelch System
>> therefor, the tones are transmitted continuously during the transmission.
>>
>> You could inject the tones from your sound board into the deviation
>> pot wiper of you HT, but you ned to be careful about levels, impedance,
>> etc.  An easier way would be to go to a local ham radio store and buy
>> a miniture CTCSS board from someone like Commspec. I believe that
>> they have units small enough to fit inside.  Check the HRO WWW page
>> at WWW.HRO.COM
>>
>> 73
>> K1NR/3
>>
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>>
>****************************************************
>*** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA  *
>**  E-mail to:  bry at mnsinc.com                     *
>*** See the interesting ham radio resources at:    *
>**  http://www.mnsinc.com/bry/                     *
>****************************************************
>AM International #1024, TENTEN #13582. GRID FM19. Using a SWAN 250 on 6m,
>Other rigs: Valiant, DX-60/HG-10, FT-840, TM-261, Ameco TX-62, Gonset
Communicator III
>HTX-202...TEN-TEN #13582, DXCC #17,763 Bicentennial WAS
>
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