Re: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Nate Duehr
On Jun 26, 2008, at 1:15 PM, Mike wrote: > Also the UK 70cms module came with a ready pre-tuned duplexer that was > mounted inside the case, as soon as we moved it outside of the case > and > fed it direct with decent coax the difference was unbelivable in > sentivity. > Huh? A "pre-tuned dupl

Re: [dstar_digital] DPRS

2008-06-26 Thread John D. Hays
The general answer to the question is yes, you just need a program that will copy the input from the USB connected GPS to the serial port, make sure you have the proper 3 wire line to the radio, the right comm port settings (baud, etc.) and its a go. You might even be able to do it with old DO

[dstar_digital] DPRS

2008-06-26 Thread Gus
I would like to take my 800 out to field day. I want to test the DPRS setup at the same time, however, I do not have a serial GPS. I do have a Delorme Earth Mate. Is there a way to take the data from the USB GPS and send it through the computer to the 800 and then out to the DPRS setup? Than

RE: [dstar_digital] Re: Limited access

2008-06-26 Thread Tony Langdon
At 01:07 PM 6/27/2008, you wrote: >Matt, > >Since its inception, the "Internet" has never gone down. There are >places where access has been unavailable, but the Internet has never gone down. >Except for the last mile, most Internet connections are highly >redundant. In the middle of Katrina, in

RE: [dstar_digital] Re: Limited access

2008-06-26 Thread Woodrick, Ed
Matt, Since its inception, the "Internet" has never gone down. There are places where access has been unavailable, but the Internet has never gone down. Except for the last mile, most Internet connections are highly redundant. In the middle of Katrina, in the middle of the biggest California Ear

[dstar_digital] Re: Limited access

2008-06-26 Thread nj902
"...I'm not trying to start any arguments..." I wouldn't take it that you were - this is a discussion list - people discuss things - we ask questions - share thoughts and learn. I started by reading most of the messages in the list archives - there's lots of information about system operation,

Re: [dstar_digital] Re: Limited access

2008-06-26 Thread Mathaeus (Matthew Fonner)
Having read things back and forth, I have a question: I'm not in ARES, RACES, or any other emergency group, but I was wondering Why choose a world-wide, open-gateway, type of system to be an emergency system? The way D-Star gets things out other than local broadcast range is via the gateway, and

[dstar_digital] Re: Limited access

2008-06-26 Thread nj902
That's my point. People will put these systems in. They will find that there isn't a perfect match of system features to their needs. People will say - "X" is a problem - or it would sure be nice if we could do "Y" Then the computer wizards will write come code and fix "X" or add "Y" and things

Re: [dstar_digital] Re: Limited access

2008-06-26 Thread ke9v
Excellent Tony. Though I have heard the remote NCO in action I never really thought through the logistics of how that lends a hand in a localized communication emergency. 73 de Jeff, KE9V IRLP 4212 DV-Dongle

Re: [dstar_digital] Re: Limited access

2008-06-26 Thread Tony Langdon
At 10:20 AM 6/27/2008, you wrote: >As far as communications outside of the local area - we have HF rigs >in our EOC and lots of local volunteers who are willing to show up >with HF capabilities as needed. You might be surprised at how out of area communications can be used. The VoIP WX Net offe

Re: [dstar_digital] Re: Limited access

2008-06-26 Thread John D. Hays
On Thu, Jun 26, 2008 at 5:20 PM, nj902 <[EMAIL PROTECTED]> wrote: > > > The general feeling is that if the disaster is big enough to take > down wide area public communications carriers we wouldn't count on > the internet or any internet linked system - D-Star or otherwise - > plus - there are sat

[dstar_digital] Re: Limited access

2008-06-26 Thread nj902
Identify who I am? Well, Ed, I use the internet option for Yahoo groups and I have noted that on every message I enter on every group I post to - it clearly shows: "nj902 <[EMAIL PROTECTED]>" - so I didn't think there was anybody who didn't have access to QRZ if they wanted to know who I am.

[dstar_digital] D-STAR Calculator Update

2008-06-26 Thread Woodrick, Ed
For those of you who are trying to setup documentation on your web site for setting up DD mode with the ID-1 and a gateway connected repeater, a new option is available on the D-STAR Calculator for creating links. http://www.dstarinfo.com/Calculator/DSTAR%20Web%20Calculator.aspx?Source=VK4RGC

RE: [dstar_digital] Re: Limited access

2008-06-26 Thread Woodrick, Ed
Interesting viewpoint (BTW, why do you never identify who you are?) If you don't want anyone transiting your gateway, then it is really easy just to stop the services on the gateway, or block the inbound ports. But from the point of view of many of us and our Emergency Management Agencies, com

[dstar_digital] Field Day 2008

2008-06-26 Thread ve7ikx
The Delta Amateur Radio Society (http://www.deltaamateurradio.com) is pleased to announce that they will have a D-Star station setup at Field Day and participating in the D-Star Field Day contest. Look for VE7SUN on VA7ICM "C" If you are not familiar with this exciting new contest full details

[dstar_digital] Re: Limited access

2008-06-26 Thread nj902
Beg to differ, Nate. I know you computer gurus are all gaga about the world-wide call sign routed [Nextel Direct-Talk] D-Star model, but from the point of view of an Emergency Management Agency, we have no interest in having one of our communications resources tied to the entire planet during a

Re: [dstar_digital] Centos 5 updates

2008-06-26 Thread Dennis Rogers
I just updated Cento5 and it speeded up the machine (64-Bit) and took care of bounce outs with Firefox. It updated some 254 packages and now running Firefox 3 Beta 5. It also corrected video screen resolution problems with my Nvidia Video Adapter. Dennis n5vrp On Thu, Jun 26, 2008 at 2:18 PM, Mi

[dstar_digital] Re: D-Star scramble code

2008-06-26 Thread jk1zrw
--- In dstar_digital@yahoogroups.com, "kb9khm" <[EMAIL PROTECTED]> wrote: > > Satoshi, > > I've been trying to figure out for some time how to descramble the > slow speed data in the DV stream sent between DPlus and the DVDongle. > The information you provided in this message is the key! > > Wha

[dstar_digital] ID-1 DD Mode

2008-06-26 Thread vk4tux
Having trouble finding anyone with experience using rps DD mode with the ID-1. Could a USA op please contact me re my qrz.com email? (good) Would like to check the following; 10.0.0.1 Internet access. I'm not getting it? Urcall can route to only local repeater DD users or other gateway DD u

Re: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Steve S. Bosshard (NU5D)
Running a cable straight to the TX or RX radio would eliminate a connection point - I do see a potential for ingress of foreign rf into the repeater enclosure on the shield of the cable without the bulkhead connector - perhaps a suitable ferrite choke or ground strap could be added ? I suspect

Re: [dstar_digital] Limited access

2008-06-26 Thread John D. Hays
Nice synopsis, Nate. -- John D. Hays Phone: 206-801-0820 Fax: 866-309-6077 Email: [EMAIL PROTECTED] VOIP/SIP: [EMAIL PROTECTED] [Non-text portions of this message have been removed]

Re: [dstar_digital] Limited access

2008-06-26 Thread Bob Brown
Nate Verry Well Put! bob, n0euh On Thu, Jun 26, 2008 at 2:48 PM, Nate Duehr <[EMAIL PROTECTED]> wrote: > Jeff's Lists wrote: > > > I'm interested in the same question, but instead I want to make it so > people > > from the outside world cannot access the system through the gateway VS > > leaving

Re: [dstar_digital] Limited access

2008-06-26 Thread Nate Duehr
Jeff's Lists wrote: > I'm interested in the same question, but instead I want to make it so people > from the outside world cannot access the system through the gateway VS > leaving it open to everyone. This may run contrary to all of our "experience" with analog systems, even linked ones, but b

[dstar_digital] Centos 5 updates

2008-06-26 Thread Mike
> > Hi all, > > I have at home a PC (only a 700MHz P3 with 265mb RAM) running > Centos 5 so that I can familiarise myself with the OS without any > fears of messing up the remote Gateway PC on GB7WF. > > Today when I switched it on, there was 165 updates so I let it > download and install t

[dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Mike
--- In dstar_digital@yahoogroups.com, "n1edu" <[EMAIL PROTECTED]> wrote: > > If I had my way, I'd remove the chassis mounted N connector, enlarge > the hole (or feed the best coax I could fit through existing hole) to > run directly from the duplexers to each module with some type of > strain

[dstar_digital] Re: D-Star scramble code

2008-06-26 Thread kb9khm
Satoshi, I've been trying to figure out for some time how to descramble the slow speed data in the DV stream sent between DPlus and the DVDongle. The information you provided in this message is the key! What I don't understand is why this scramble table is different than the one on your website

Re: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Bob Brown
I agree On Thu, Jun 26, 2008 at 11:14 AM, Daron Wilson <[EMAIL PROTECTED]> wrote: > >We don't worry about such stuff in commercial applications. it is part of > the > >link budget. > >.15 db on a splice in our work it is closer to being treated as 0.01 > >db...does not have a effect on operat

RE: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Daron Wilson
>We don't worry about such stuff in commercial applications. it is part of the >link budget. >.15 db on a splice in our work it is closer to being treated as 0.01 >db...does not have a effect on operation. >(unless you have a bad cable assembly, then in which case it is under >warranty send it back

Re: Re: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Ron Wright
DAve Anderson, you need to jump in here now. Dave mod'd ICOMs D-Star repeaters to make them work as they should. His input would be good. 73, ron, n9ee/r Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.

RE: [dstar_digital] Limited access / Wide Open

2008-06-26 Thread Woodrick, Ed
Blocking inbound traffic is very easy, just block the incoming ports. This can be done in the router or the computer firewall. But I just have to question the need for it. Just how many inbound connections do you get? If you don't want anyone to connect repeaters to you, then drop DPlus, if you

RE: RE: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Greg Forrest
I agree with Ron. The loss is negligible. But transmitter noise or desense (these are separate and distinct issues) could be a more significant problem since the TR separation is usually 600 kHz, and may now be 400 kHz in Northern California. Another poster indicated a major improvement by rep

Re: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Bob Brown
WHY on earth are we worrying about such losses? We don't worry about such stuff in commercial applications. it is part of the link budget. .15 db on a splice in our work it is closer to being treated as 0.01 db...does not have a effect on operation. (unless you have a bad cable assembly, then in

Re: RE: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Ron Wright
This loss is about .11 db/ft, little more than RG58. If one used RG223 (double shielded RG58) the loss would be about the same. Going to RG214 loss would be .05 db/ft, an improvement. All this is at 400 MHz. At 400 MHz the .11db loss would be .63 watts from 25 watts. I don't think much impro

Re: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Charles Scott
Greg: Admittedly every little bit hurts, but we're talking .1 to .25 db depending on the frequency--not the end of the world. I wouldn't worry about the N-Connector losses unless they aren't mounted correctly. Aren't they rated at like .15 dB at 10 GHz? In any case, unless there's a problem

[dstar_digital] D-STAR testing in Lima, OH

2008-06-26 Thread David B. Toth
We have temporarily shut down an analog system and are testing D-STAR from Lima, OH (60 miles north of Dayton) ... We'll have it on testing for a few weeks - no gateway likely until after the ARRL-TAPR DCC in September ... It certainly covers at least as well as analog, and the quiet sound is a

RE: [dstar_digital] Re: Inside Chassis coax - lossy

2008-06-26 Thread Greg Zenger
The coaxial cable inside the repeaters is Flexiform 405 HFJ by Habia Cable. Its listed attenuation is 43dB/100m at 400MHz, and 70dB/100m at 1GHz. Of course, there are only 10 inches or so of the stuff, but every fraction of a dB can count. The cheapest, and least lossy method, would be to remo