Hello Group,
Is anyone familiar witha 24 bit digital code squelch?
The standard DCS / DPL is 23 bit but there is also a standard with 24 bits but I cannot find any information on it.It also may be proprietary/patented, at this time.
Any information would be appreciated as it would be a nice
Although I am unable to assist you ... your question reminds me
of a study I made several years ago that suggested there are more
than four columns and more than four rows of DTMF (Touch-Tone) tones
available.
Food for thought?
Neil McKie - WA6KLA
Jay Thienel wrote:
Hello
Jim B. wrote:
Kevin Custer wrote:
... and Neil snipped ...
In fact, DPL turn-off code is 34 hz. Virtually all DCS encoders
send 100-200 mS of 34 hz as they unkey, and this mutes the receiver
on the other end.
I do believe the turn-off code is closer to 134 Hz.
Motorola
Matt wrote:
Has anyone any experience of encoding a CTCSS tone of, say 77Hz, and
a DCS code at the same time?
Yes
Is the digital code going to mix with the CTCSS tone and produce a
bunch of harmonics that make the repeater sound horrible?
No, if set up properly.
Different tones will
Hello John ... and Mike ...
The Motorola Mocom-10 Manual, part number 68P81010E40, dated
7/17/70, covered the following model numbers:
Dash-mount mobile radio Models ... 12 VDC, Negative ground
D21AAN-1100B Carrier Squelch
D21AAN-3100B Private Line Tone-Coded Squelch
-
From:
James
To:
Repeater-Builder@yahoogroups.com
Sent:
Friday, December 03, 2004 9:35 PM
Subject:
Re: [Repeater-Builder] tone trivia..?
Kevin, you're just a show off (putting the com-spec code in there)
James
0Z - Find that one if ya dare
]
Sent: December 4, 2004 00:31
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] tone trivia..?
Too close to the 2nd harmonic of 60 Hz...
---
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--- Gregg R. Lengling [EMAIL PROTECTED] wrote:
Using tones below 60 Hz usually doesn't work for 2
reasons. #1 reason is that the transmitter will not
reproduce that low of a tone without distortion and
overdrivingand the receiver audio won't recover
it. #2 the lower the frequency the
:
Saturday, December 04, 2004 7:54 PM
Subject:
Re: [Repeater-Builder] tone trivia..?
Many of the tones that tha Com-Spec TS64 series borads will do are
non-standard tones (per EIA). Has anyone used any of these??
especially the low ones like 33 Hz??
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James wrote:
Kevin, you're just a show off (putting the com-spec code in there)
I'm allowed grin
0Z -
Find that one if ya dare :)
Okay:
http://www.n9jig.com/radio/PL.html
(254.1 Hz.)
Yahoo! Groups Links
To visit your group on the web, go
-Original Message-
From: Steve Grantham [mailto:[EMAIL PROTECTED]
Sent: December 4, 2004 00:31
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] tone trivia..?
Too close to the 2nd harmonic of 60 Hz...
---
Yahoo! Groups Links
* To visit your group on the web
You better incude Bob S-Com's modified PM exciter, too, or he will be
disappointed. ;-
Joe M.
Kevin Custer [EMAIL PROTECTED] wrote:
--
I have tested many repeater transmitters and can verify that
'most' station exciters that employ FM
Then why aren't they using 118.8 Hz? (2B)
Joe M.
Ken Arck wrote:
At 05:12 PM 12/3/2004 -0800, you wrote:
Motorola 4Z
CTCSS 136.5 Hz.
Com-Spec # 21
Kevin Custer
I hear it on good authority that the Columbia University School of
English Literature's ham radio club's repeater
At 09:13 PM 12/3/2004 -0500, you wrote:
Then why aren't they using 118.8 Hz? (2B)
---that would have been too obvious!
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and
Kevin, you're just a show off (putting the com-spec code in there)
James
0Z - Find that one if ya dare :)
Kevin Custer wrote:
James wrote:
ok guys. 4Z
Motorola 4Z
CTCSS 136.5 Hz.
Com-Spec # 21
Kevin Custer
Yahoo! Groups
Too close to the 2nd harmonic of 60 Hz...
- Original Message -
From: mch [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Friday, December 03, 2004 8:13 PM
Subject: Re: [Repeater-Builder] tone trivia..?
Then why aren't they using 118.8 Hz? (2B)
Joe M.
Ken Arck
254.1 - 0Z - NON EIA STANDARD TONES
Randy
KC0RTX
- Original Message -
From:
James
To: Repeater-Builder@yahoogroups.com
Sent: Friday, December 03, 2004 9:35
PM
Subject: Re: [Repeater-Builder] tone
trivia..?
Kevin, you're just a show off (putting the com
OK Smartie Pants...
Who had Quiet Tone..?
skipp
Neil McKie [EMAIL PROTECTED] wrote:
RCA = Quiet Channel ...
Neil
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skipp025 wrote:
OK Smartie Pants...
Who had Quiet Tone..?
skipp
EFJ?
or Aerotron...
--
Jim Barbour
WD8CHL
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Kenwood
- Original Message -
From: skipp025 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Friday, December 03, 2004 4:08 PM
Subject: [Repeater-Builder] tone trivia..?
OK Smartie Pants...
Who had Quiet Tone..?
skipp
Neil McKie [EMAIL PROTECTED] wrote
@yahoogroups.com
Subject: [Repeater-Builder] tone trivia..?
OK Smartie Pants...
Who had Quiet Tone..?
skipp
Neil McKie [EMAIL PROTECTED] wrote:
RCA = Quiet Channel ...
Neil
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