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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RTTY\]\s+Mark\s+\&\s+Space\s+\-\s+High\s+Tones\s*$/: 15 ]

Total 15 documents matching your query.

1. [RTTY] Mark & Space - High Tones (score: 1)
Author: Phil Sussman <psussman@pactor.com>
Date: Wed, 08 Jun 2011 12:58:00 -0400
I've been wandering on the AA5AU RTTY pages in search of Don's email address. After my exchange with Chen, I had a question about the RTTY Intro page on Don's site. It is noted that high tones are 21
/archives//html/RTTY/2011-06/msg00052.html (6,864 bytes)

2. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Joe Subich, W4TV" <lists@subich.com>
Date: Wed, 08 Jun 2011 15:22:40 -0400
You are correct. MARK is the tone that provides the *HIGHER* RF frequency. Thus if you use USB AFSK the conventional "High tones" would be 2295 Hz = Mark and 2125 = Space. Nearly all material on RTT
/archives//html/RTTY/2011-06/msg00053.html (8,425 bytes)

3. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: iw1ayd <iw1ayd@googlemail.com>
Date: Thu, 09 Jun 2011 00:36:11 +0200
Phil, may I say: yes. ! space mark zero beat mark space ! The mark is anyway the nearest tone to the suppressed carrier zero beat frequency. The readout on radio may change but this is the picture. 7
/archives//html/RTTY/2011-06/msg00055.html (9,119 bytes)

4. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Joe Subich, W4TV" <lists@subich.com>
Date: Wed, 08 Jun 2011 18:40:50 -0400
That is *incorrect* ... if one connects a frequency counter to the output of the transmitter, MARK is always the *higher* of the two measured frequencies - regardless of whether the suppressed carri
/archives//html/RTTY/2011-06/msg00056.html (9,983 bytes)

5. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Clint Talmadge W5CPT" <w5cpt@bellsouth.net>
Date: Wed, 8 Jun 2011 17:43:37 -0500
Now if we could get folks to understand this when spotting RTTY stations on the cluster it would be great! Clint Talmadge - W5CPT Phil, may I say: yes. ! space mark zero beat mark space ! The mark is
/archives//html/RTTY/2011-06/msg00057.html (8,437 bytes)

6. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: Robert Chudek - K0RC <k0rc@citlink.net>
Date: Wed, 08 Jun 2011 17:54:32 -0500
As Joe says, the space RF frequency is always (should always be) the lower of the two RF frequencies being transmitted. When it is not, people cannot copy you unless they invert their decoder. So the
/archives//html/RTTY/2011-06/msg00058.html (9,390 bytes)

7. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: Jim Rhodes <jimk0xu@gmail.com>
Date: Wed, 8 Jun 2011 18:20:17 -0500
The one I learned was LSMFT - Low Space Means Fine Teletype, then somebody went and made a cigarette commercial out of it! ;-) on _______________________________________________ RTTY mailing list RTT
/archives//html/RTTY/2011-06/msg00059.html (10,116 bytes)

8. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Wed, 08 Jun 2011 17:03:42 -0700
"RTTY consists of a frequency shift keyed signal that is modulated between two carrier frequencies called the mark frequency and the space frequency. The protocol for amateur RTTY calls for the mark
/archives//html/RTTY/2011-06/msg00060.html (9,534 bytes)

9. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Jim W7RY" <w7ry@inbox.com>
Date: Wed, 8 Jun 2011 17:59:59 -0700
The use of the name "high tones" refered to 2125/2295. Low tones were around 900/1070 (give or take). Hal communications manufactured ST-6000s with either set of tones. Please don't confuse high/low
/archives//html/RTTY/2011-06/msg00061.html (11,373 bytes)

10. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Wed, 08 Jun 2011 19:08:33 -0700
ORIGINAL MESSAGE: REPLY: Or for us old guys who remember the cigarette ad "Lucky Strike Makes Fine Tobacco" or LSMFT, "Low Space Makes Fine Teletype". 73, Bill W6WRT _________________________________
/archives//html/RTTY/2011-06/msg00062.html (8,816 bytes)

11. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Jim W7RY" <w7ry@inbox.com>
Date: Wed, 8 Jun 2011 19:13:37 -0700
Always strive for the high mark! :) 73 Jim W7RY _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contesting.com/mailman/listinfo/rtty
/archives//html/RTTY/2011-06/msg00063.html (9,637 bytes)

12. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Joe Subich, W4TV" <lists@subich.com>
Date: Wed, 08 Jun 2011 23:31:44 -0400
Actually "low tones" were 1275/1445 ... more common in Europe than in the US. 915/1085 (centered on 1000 Hz) is another artifact of modern programmers who did not understand RTTY and were used to 1 K
/archives//html/RTTY/2011-06/msg00064.html (12,888 bytes)

13. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: "Jim W7RY" <w7ry@inbox.com>
Date: Wed, 8 Jun 2011 20:44:20 -0700
Yup! There you go Joe. 73 Jim W7RY _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contesting.com/mailman/listinfo/rtty
/archives//html/RTTY/2011-06/msg00065.html (14,528 bytes)

14. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: WS7I <ws7ik7tj@gmail.com>
Date: Wed, 8 Jun 2011 20:54:42 -0700
Actually Joe is correct. 1275/1445 for 170 Hz shift. These were widely used as IARU standards called for these "low tones". Commercial and Military used them for a long time as they weren't as concer
/archives//html/RTTY/2011-06/msg00066.html (14,269 bytes)

15. Re: [RTTY] Mark & Space - High Tones (score: 1)
Author: Phil Sussman <psussman@pactor.com>
Date: Thu, 09 Jun 2011 06:18:14 -0400
Thanks Joe and Jay, The common low tones used in Europe was what I meant. Unfortunately, in in RTTY, 'polarity' is important. Unlike 'mirror modes' (which actually has some other name that I can not
/archives//html/RTTY/2011-06/msg00067.html (16,026 bytes)

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