Re: [Repeater-Builder] ctcss logic back to an external repeater controller

2007-10-03 Thread Allan Overcast
The new RLC-DSP404 supports CTCSS and DCS decoding and encoding standard.
   
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com
  

Nate Duehr [EMAIL PROTECTED] wrote:
  skipp025 wrote:
 ctcss logic back to an external repeater controller

 I've been talking with a small number of people off the group about
 external repeater controller interface logic lines. In specific how
 many of the external repeater controllers handle ctcss (sub-tone, aka
 PL) detection, logic, control and selection.

 To keep things short and simple... let us assume an example of the
 two most common repeater controller layouts regarding ctcss operation.

I'll see your two examples and raise you one, Skipp. (GRIN! Or maybe 2...)

Example 3:

At least two controllers now support CTCSS detection and/or generation 
directly in the controller.

The S-Com 7330 (currently in beta test) offers CTCSS encode, but not 
decode:
http://www.scomcontrollers.com/

The PSE-508 series from Pion and Simon Electronics handles both encode 
and decode, but is built to be installed into a specific repeater, the 
GE MASTR II. (In fact, their latest software rev offers 4 CTCSS tone 
community tone panel-like functionality.)

http://www.pionsimon.com/products.htm

Wasn't there also a Pacific Research controller that did one or both of 
these at one point? They've always been too expensive for me, but I 
thought one of their boxes did it... maybe... ?

I think putting the encoder/decoder up in the controller is the wave of 
the future... if done right, it should make things a lot simpler in the 
long-run... no fussing with CTCSS boards in any fashion, just bring 
discriminator audio to the controller and find a place to send audio 
back that isn't high-pass filtered... done deal...

The controller folks making the CTCSS circuits have to go out and get an 
edumacation on Reverse-Burst/STE and all that fun and games though, if 
they want to fully emulate the original manufacturer's boards... I know 
the 7330 is going to have the option to do either type of phase shift 
on their encoder, for example. Not sure if the PS does RB/STE at all.

Example 4:

Go digital, leave the silly CTCSS behind. The 70's are calling and they 
want their repeater back!

Heh heh. :-) :-) :-) !!!

Nate WY0X


 

   
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Re: [Repeater-Builder] RLC-DSP404 Handout now available

2007-05-18 Thread Allan Overcast
Yes.  The Hamvention prices are held for orders places before the unit is 
released.
  Allan

JOHN MACKEY [EMAIL PROTECTED] wrote:
  Allan-

Are the hamvention prices available to those of us who were not able to
attend hamvention?



 

   
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Re: [Repeater-Builder] RLC-DSP404 Handout now available

2007-05-17 Thread Allan Overcast
I will forward this to Steve to answer.
   
  Allan
  

Nate Duehr [EMAIL PROTECTED] wrote:
  I'm probably not the first person to mention this, Alan... but...

If you made changes to the source of any Gnu Public Licence-licensed 
(GPL) binaries from the original authors, and recompiled new 
binaries, you're required to make those changes available under the 
terms of the GPL. (Making them available doesn't mean you have to 
put them on the web, the full terms are in the GPL itself.)

Hopefully you've carefully reviewed the source licenses of any code 
modified to produce new binaries (if any of the binaries were 
modified) on the system, and are either planning up-front to release 
all of those changes, or have written permission from all authors and 
copyright holders (sometimes very hard to determine if multiple 
people have contributed to something before it made its way to you).

Having been involved in reviewing this requirement with IRLP and Dave 
Cameron many years ago, he avoided the problem by only modifying one 
binary that he didn't write himself. That binary was released to the 
Public Domain and wasn't under the GPL, and everything else on the 
system was written from scratch... so no problems for his system.

Drivers for the kernel are also sometimes a different story -- they 
might be dual-licensed under the GPL and the LGPL, which changes the 
rules somewhat (but not much), and many tools on so-called Linux 
systems are actually licensed under the BSD (Berkeley Systems 
Division) licenses which allow much more room to make commercial 
products without releasing source code.

Just mentioning it because a lot of very big companies (Linksys, 
Microchip, others) have fallen into the Linux licensing trap and were 
forced by the Free Software Foundation to release their modifications 
to the original GPL-licensed source code.

You probably knew all of the above, already... but just mentioning it...

Embedded Linux can be a pain in this regard, which is what drove 
Linksys to move to VxWorks for their small routers. By that time, 
people had figured out how Linksys hardware worked via reverse- 
engineering and some really neat modifications had started to come 
out. Enough that when the community demanded Linksys keep the old 
hardware available, they did... under a new model name ending in an 
L, for Linux.

In the end, it didn't hurt them. They still got my $50 or whatever 
for this WRT54GS in the basement, but it's certainly no longer 
running their code!

It does a hell of a lot more (but it's also too complex for Joe- 
sixpack to configure!) than Linksys ever intended, now that it has DD- 
WRT installed on the flash. Not that I use most of its new 
capabilities created by the Linux community -- I never thought I'd 
see a Linksys router capable of mounting a Windows fileshare via 
Samba as local disk space, but it'll do it. It is nice to be able 
to ssh to it, though, and get a BusyBox command prompt and fiddle 
with its guts.

Nate WY0X

On May 16, 2007, at 8:40 AM, Allan Overcast wrote:

 We are discussing the possibility, on a per-person licence basis. 
 But that is only in the discussion stages currently. Depending on 
 interest, will help us make that decision.

 Allan Overcast KF7FW
 Link Communications, Inc.
 www.link-comm.com

 Preston Moore [EMAIL PROTECTED] wrote:
 The 404 appears to have just about everything one
 could want in a controller and much more. I noticed
 it's running Linux. Does this mean the source code
 will be available?

 Preston Moore

 Here is the link to the new Digital Controllers
 product brief.
 
 
 http://www.link-comm.com//ftp/rlc-dsp404/handouts/RLC-DSP404.pdf
 
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com

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RE: [Repeater-Builder] RLC-DSP404 Handout now available

2007-05-16 Thread Allan Overcast
We are discussing the possibility, on a per-person licence basis.  But that is 
only in the discussion stages currently.  Depending on interest, will help us 
make that decision.
   
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com

Preston Moore [EMAIL PROTECTED] wrote:
  The 404 appears to have just about everything one
could want in a controller and much more. I noticed
it's running Linux. Does this mean the source code
will be available? 

Preston Moore

Here is the link to the new Digital Controllers
product brief.
 
 
http://www.link-comm.com//ftp/rlc-dsp404/handouts/RLC-DSP404.pdf
 
 Allan Overcast KF7FW
 Link Communications, Inc.
 www.link-comm.com

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Re: [Repeater-Builder] Re: RLC-DSP404 pictures and specs

2007-05-15 Thread Allan Overcast
Yes we do.  The web page we are finding is missing a few items.  The person 
that designed the new site left for another job, and it looks like the site was 
not finished.
   
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com

wb6ymh [EMAIL PROTECTED] wrote:
  While you're at it ... I can no longer find any of the accessories
like the RLC-MOT Micor squelch card on the WEB site. I hope you still
make it!

73's Skip WB6YMH
--- In Repeater-Builder@yahoogroups.com, Allan Overcast
[EMAIL PROTECTED] wrote:

 The prices are available once you click on the controller, then the
purchasing link. It takes you to either a .pdf or html pricelist. I
will get a link moved out to the controller main page, good point.
 
 Thanks,
 Allan Overcast KF7FW
 Link Communications, Inc.
 www.link-comm.com
 
 Doug W7FDF [EMAIL PROTECTED] wrote:
 Just curious Allan on your new Link-Comm website
 [http://www.link-comm.com/]that I just checked out. I noticed [but
 could have overlooked a link] that there are no price list for any of
 the Link-Comm products. Why is that??
 
 Doug W7FDF
 Vail, Arizona U.S.A.
 
 --- In Repeater-Builder@yahoogroups.com, Allan Overcast
 allanovercast@ wrote:
 
  Information about the new RLC-DSP404 will be released on Monday. 
 For those going to Dayton stop by our booth and.
 
 
 
 
 
 
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[Repeater-Builder] RLC-DSP404 Handout now available

2007-05-15 Thread Allan Overcast
Here is the link to the new Digital Controllers product brief.
   
  http://www.link-comm.com//ftp/rlc-dsp404/handouts/RLC-DSP404.pdf
   
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com

   
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Re: [Repeater-Builder] Re: RLC-DSP404 pictures and specs

2007-05-14 Thread Allan Overcast
The prices are available once you click on the controller, then the purchasing 
link.  It takes you to either a .pdf or html pricelist.  I will get a link 
moved out to the controller main page, good point.
   
  Thanks,
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com

Doug W7FDF [EMAIL PROTECTED] wrote:
  Just curious Allan on your new Link-Comm website
[http://www.link-comm.com/]that I just checked out. I noticed [but
could have overlooked a link] that there are no price list for any of
the Link-Comm products. Why is that??

Doug W7FDF
Vail, Arizona U.S.A.

--- In Repeater-Builder@yahoogroups.com, Allan Overcast
[EMAIL PROTECTED] wrote:

 Information about the new RLC-DSP404 will be released on Monday. 
For those going to Dayton stop by our booth and.



 

   
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[Repeater-Builder] RLC-DSP404 pictures and specs

2007-05-12 Thread Allan Overcast
Information about the new RLC-DSP404 will be released on Monday.  For those 
going to Dayton stop by our booth and register for the drawing for a free 
RLC-DSP404 unit when released.  The RLC-DSP404 will sell for $999.95 with four 
ports (includes 1U rack enclosure)and can be expanded to 12 ports in 4 port 
increments.  All the features of the RLC-3 plus a whole lot more like VoIP, 
Remote Management over serial, USB and Ethernet, Has 2 USB ports and one USB 
on-the go port, one for computer connection and one for a USB thumb drive.  The 
system runs uCLinux, and is easily backed up because the system and voice 
storage memory is via a removable SD-Flash card (up to 4 GB).  Radio port 
features like one audio input and two audio outputs per port, seperate RS-232 
serial ports per port and complete digital adjustment from DTMF or one of the 
several digital ports (USB, Ethernet and Serial).  Standard DB-9 connectors for 
the radio port connections.  Includes digitally adjustable audio
 delay, PL/DPL decoder/encoder, Squelch control and complete flat audio 
supporting Discriminator to Modulator audio.  Complete DVR included with 
multiple voice libraries, up to 675 words per library (lots of seperate 
libraries supported).  Both .wav and .mp3 audio playing and .wav recording.  
I/O of 7 analog inputs (12 bit), 8 output lines and 8 contact closure inputs 
via a DB-25 connector (same as the RLC-3 I/O).  Technically the digital audio 
is 24 bit, 48 KHz sample rate.  DSP is a 600 MIPS Analog Devices Blackfin.  
Includes 1 Gbyte SD card w/uCLinux OS and voice files.  1U system for 4 ports.  
2U for 8 to 12 ports.
   
  Remember to stop by and register for the free giveway of the RLC-DSP404 4 
port controller.  Shooting for controller shipping by July 1st.  Orders placed 
at Dayton are eligible for free UPS 3-day shipping/handling and no sales tax.
   
  All for Now!
   
  Allan Overcast KF7FW
  Link Communications, Inc.



   
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Re: [Repeater-Builder] RLC-DSP404 pictures and specs

2007-05-12 Thread Allan Overcast
The current ship date is scheduled for July 1st/15th time frame.  We will have 
a unit there for touchie/feelie, through a plexiglass case.
  Allan
  

JOHN MACKEY [EMAIL PROTECTED] wrote:
  Great news, Allan!! When do you project it unit being available?

-- Original Message --
Received: Sat, 12 May 2007 11:09:50 AM CDT
From: Allan Overcast [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] RLC-DSP404 pictures and specs

 Information about the new RLC-DSP404 will be released on Monday. For those
going to Dayton stop by our booth and register for the drawing for a free
RLC-DSP404 unit when released. The RLC-DSP404 will sell for $999.95 with four
ports (includes 1U rack enclosure)and can be expanded to 12 ports in 4 port
increments. All the features of the RLC-3 plus a whole lot more like VoIP,
Remote Management over serial, USB and Ethernet, Has 2 USB ports and one USB
on-the go port, one for computer connection and one for a USB thumb drive. 
The system runs uCLinux, and is easily backed up because the system and voice
storage memory is via a removable SD-Flash card (up to 4 GB). Radio port
features like one audio input and two audio outputs per port, seperate RS-232
serial ports per port and complete digital adjustment from DTMF or one of the
several digital ports (USB, Ethernet and Serial). Standard DB-9 connectors
for the radio port connections. Includes digitally adjustable audio
 delay, PL/DPL decoder/encoder, Squelch control and complete flat audio
supporting Discriminator to Modulator audio. Complete DVR included with
multiple voice libraries, up to 675 words per library (lots of seperate
libraries supported). Both .wav and .mp3 audio playing and .wav recording. 
I/O of 7 analog inputs (12 bit), 8 output lines and 8 contact closure inputs
via a DB-25 connector (same as the RLC-3 I/O). Technically the digital audio
is 24 bit, 48 KHz sample rate. DSP is a 600 MIPS Analog Devices Blackfin. 
Includes 1 Gbyte SD card w/uCLinux OS and voice files. 1U system for 4 ports.
2U for 8 to 12 ports.
 
 Remember to stop by and register for the free giveway of the RLC-DSP404 4
port controller. Shooting for controller shipping by July 1st. Orders placed
at Dayton are eligible for free UPS 3-day shipping/handling and no sales tax.
 
 All for Now!
 
 Allan Overcast KF7FW
 Link Communications, Inc.
 
 
 
 
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Re: [Repeater-Builder] HF Remote Base?

2007-02-04 Thread Allan Overcast
The RLC-Club, RLC-1+, RLC-2, RLC-3, RLC-DSP... all support the IC-706 as well 
as many other radios.
   
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com

[EMAIL PROTECTED] wrote:
  At 2/3/2007 19:22, you wrote:
* drwoolweaver [EMAIL PROTECTED] [2007 Feb 03 21:15 -0600]:
  Any suggestions for a modern repeater controller that will also
  operate a frequency agile HF remote base? Thanks de David

If I recall, the Link Communications models supported the Doug Hall
interface.

I thought the Doug Hall interface only supported a few out-of-production 
VHF/UHF radios. I believe the LinkComm controllers provide direct support 
for many HF rigs. Also NHRC makes a controller (NHRC-10?) that supports 
the Icom IC-706MKIIG*+%^$!

Bob NO6B



 

 
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Re: [Repeater-Builder] Link-Comm - Micor carrier squelch timing (was GE squelch)

2007-01-28 Thread Allan Overcast
I will see if I can perform that test on Monday AM and post the results.  BTW, 
the typical propogation delay through all the controllers is less that 5mS, so 
pretty fast.
   
  Allan Overcast KF7FW
  Link Communications, Inc.
  www.link-comm.com
  

Kevin Custer [EMAIL PROTECTED] wrote:
  Bob, et al, 
Bob wrote:  FWIW, I never use pin 10 at all;  

Kevin wrote:  I try to use that pin when I can, and prefer it over the open 
emitter  shunt switches.

Incidentally, the Link-Comm board uses the 2.2 uF cap / pin 10  combination to 
drive the COS output buffer...  FWIW  

Bob wrote:  Really!  I noticed some decay problems with an RLC-MOT we have on 
an SCom   7k.  I've always attributed it to COS line propagation delay in the   
controller, but perhaps the 2.2 µF cap is the major culprit.  We solved the   
problem by using the onboard audio gating, which I see uses pins 6  7 of   the 
Micor squelch IC.

Maybe we can ask Link-Comm to do a timing test on their unit and then change 
the 2.2 uF capacitor on pin 10 to something else and see if it changes the 
attack/decay of the COS action?

Steve or Allan  - you out there?

Kevin Custer


  

 

 
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[Repeater-Builder] Link Communications Pre-Release Announcement

2007-01-11 Thread Allan Overcast
Link Communications introduces a new addition to its repeater controller 
family.  The RLC Digital Controller (yet to be named) builds upon the proven 
RLC-3 and RLC-Club designs, while providing advanced features that aren't 
available in any other product.  There are some things that we can already tell 
you about the design, some things that we haven't settled on yet, and some 
things we won't talk about until later :)  We are looking for input to ensure 
that the new system includes the features that are most important to you, our 
customers.

Among the features that we can talk about:

   The audio path will be digital (48K samples/second, better than CD quality). 
 This will allow many features to be implemented without additional hardware 
(digital audio delay, voice recording/storage,squelch, etc) and without any 
loss of audio quality. 
   

   Voice library can be easily updated or extended using standard .wav files. 
   

   New Windows (tm) control software will make reconfiguring things on the fly 
simple, and will provide real-time status, indicating exactly what is going on 
at each moment. 
   

   Improved firmware will retain the flexibility of the RLC-3 and RLC-Club 
series of controllers while making advanced features easier to use.  Some of 
the improvements may also show up in a firmware update for those controllers. 
   

   Modular design will allow easy expansion in increments of four ports (4, 8, 
12...). 
   

   Integrated Ethernet network interface will enable remote management (which 
can be done over the serial port as well), as well as VoIP/RoIP (Voice/Radio 
Over IP), over the Internet or a private network.  Of course the controller 
will work without a network connection, but those features won't be available. 
  

Some of the features we could use feedback about include:

   A good name for the new controller. 
   

   Type of front-panel display you prefer:  LEDs for each signal (similar to 
current controllers), or an interactive LCD display?  Remember that a computer 
running the new management software will provide real-time status too. 

   Frequency-controllable remote base radios: 
  What brand and model of remote base radio you are most likely to use 
(Icom IC-706, Yaesu FT-900, Kenwood TS-440...)?
  
  How many serial ports are needed?  Typically each remote base radio needs 
a serial port for control.   
  Is it worth adding dedicated 1/8 connectors for Icom CI-V radios such as 
the IC-706/7000, or is it better to just use pins on the DB-9 radio port 
connectors for the serial signals?



   Desired use for VoIP/RoIP features: 
  Monitoring the repeater from a computer running the management software. 

  Point to point links between radio sites (replacing RF links or linking 
sites that weren't close enough to link with RF). 

  Interfacing to other VoIP/RoIP networks.  If you would use this feature, 
which systems would you want to interface with (IRLP, Echolink, D-Star...)?  
These interfaces would probably be options. 


   Number/type of I/O lines for site telemetry (remember that these require 
hardware and therefore affect production cost). 
   

   Audio adjustments:  Should the major transmitter and receiver level 
adjustments be made with physical pots or software-controlled pots? 

  The advantage of physical pots is that you can just grab a screwdriver 
and adjust them without having to go though some kind of user interface (minor 
level tweaks would still be possible through software). 
  
  The advantage of software-controlled pots is that you can make even major 
level adjustments remotely. 
  
  If the physical pots were accessible without opening the case would it 
change your answer?



  Things we aren't talking about yet :)

   Subaudible tone (PL/DPL) 

   Price 

   Release date (stop and see us at the Dayton Hamvention for more, hint, 
hint...) 
  
If you have thoughts, ideas, questions, or want updated information, see 
http://digitalrlc.link-comm.com.  We will try to keep that web page up to date 
with any new information and with answers to your questions (at least to the 
ones we are willing to talk about :). 
  
Allan Overcast KF7FW
  Link Communications, Inc.

 
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