[digitalradio] Re: Possibilities of integrating digital radio to astronomy.

[orionshelper]

Thanks Les, that might be interesting for the image collection part 
of it. It looks like a nice SSTV program.

Martin, I was not able to get Google to translate the webpage from 
Dutch to English. Actually, when I run it through the Google 
translate, it just gives me a header page.

I have found several wireless (radio) setups that can support 
remoting the RS232 over pretty long distances. One system supports 
distance up to 40 miles and another up to 15 miles. These are not in 
the amateur radio realm, but there may still be something to do that. 
The operating frequencies are in the 900 Mhz range and in the 2.4 Ghz 
range. What I have found so far is in the commercial arena so I do 
not know if I should post links here yet. I do not want to violate 
posting rules.

I would still rather find something using amateur radio. I think it 
would be so much more fun.


--- In digitalradio@yahoogroups.com, "Leskep" <[EMAIL PROTECTED]> wrote:
>
> Have a look at EasyPal   http://www.kc1cs.com/digi.htm
> It has facility for camera - may be worth investigating
> and the pics will be good
> Les
> 
> 
> From: orionshelper 
> Sent: Tuesday, February 05, 2008 6:27 AM
> To: digitalradio@yahoogroups.com 
> Subject: [digitalradio] Re: Possibilities of integrating digital 
radio to astronomy.
> 
> 
> Andrew and group ..
> 
> I joined in hopes of finding some way of integrating digital radio
(s) 
> to my existing telescope controls. Currently, they essientially use 
> standard RS232 for operation. In addition, I also want to be able 
to 
> retreive the images. These could either be in realtime video, or as 
> captures. I suspect that SSTV would not provide the desired 
resolution. 
> I would like to be able to use the scope(s) remotely at an extended 
> unmanned location where direct wiring is impractical. Radio would 
be 
> the only logical answer. Obviously,I suspect that the only way to 
do 
> this is going to be at 70 cm or above. Any suggestions on how to at 
> least create a realtime wireless RS232 link?
> 
> Thanks
> 
> --- In digitalradio@yahoogroups.com, "Andrew O'Brien" 
 
> wrote:
> >
> > We had a neew member join us today that said ...
> > 
> > "would like to explore possibilities of integrating digital radio 
to 
> > astronomy. This would be in interfacing digital mode radios to 
> > telescopes for remote control and image collection "
> > 
> > Any thoughts ?
> >
>

[digitalradio] ARRL/TAPR Digital Communications Conference in Chicago Dates Announced

[Mark Thompson]

Dates for ARRL/TAPR Digital Communications Conference in Chicago Announced (Feb 
4, 2008) -- 

The Tucson Amateur Packet Radio Corporation (TAPR) has announced that the 2008 
ARRL/TAPR Digital Communications Conference will take place September 26-28 at 
the Holiday Inn Hotel in Elk Grove Village, Illinois, a suburb of Chicago, near 
O'Hare airport. 

The conference is an international forum for radio amateurs to meet, publish 
their work and present new ideas and techniques. Presenters and attendees will 
have the opportunity to exchange ideas and learn about recent hardware and 
software advances, theories, experimental results and practical applications. 
Forums will feature the latest developments in Amateur Radio digital 
communications, as well as demonstrations of emerging digital technology. 

More information is available on the ARRL/TAPR DCC Web site, 
http://www.tapr.org/dcc.html


  

Looking for last minute shopping deals?  
Find them fast with Yahoo! Search.  
http://tools.search.yahoo.com/newsearch/category.php?category=shopping

Re: [digitalradio] Sigma Tel audio level

[Jose A. Amador]

Dave,

Getting only 40 watts out means you still need an audio level 4 dB higher.

Going the easy way, can't you tweak some attenuator in your interface?

73,

Jose, CO2JA


Dave 'Doc' Corio wrote:

> I recently discovered that my Soundblaster Audigy card was causing 
> some problems to my software, so I switched over to the on-board Sigma 
> Tel sound system. All the problems disappeared, but I notice the output 
> level is quite low from the Sigma Tel to the rig. I've gone to the 
> obvious places to correct this, and with the windows volume control set 
> to the max, it still doesn't drive my 746 anywhere near as well as the 
> Audigy did. For example, on 160 meters, I could, if I chose to, run just 
> about 100 watts out using the Audigy card. Using the Sigma Tel I can 
> only get about 40 watts.
> 
> Am I overlooking something simple here? The only thing that changed 
> is where the cables plug in to the back of the PC. The cables all stayed 
> the same, as did the interface. Anyone know if this just may be how the 
> Sigma Tel works?
> 
> Tnx in advance
> Dave
> KB3MOW


__

Participe en Universidad 2008.
11 al 15 de febrero del 2008.
Palacio de las Convenciones, Ciudad de la Habana, Cuba
http://www.universidad2008.cu

RE: [digitalradio] Sigma Tel audio level

[dalite01]

Also, going back to the onboard audio, you may have to raise the wave output
to get proper drive from the sound card
 
David
KD4NUE


-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Jose A. Amador
Sent: Tuesday, February 05, 2008 10:34 AM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Sigma Tel audio level




Dave,

Getting only 40 watts out means you still need an audio level 4 dB higher.

Going the easy way, can't you tweak some attenuator in your interface?

73,

Jose, CO2JA

Dave 'Doc' Corio wrote:

> I recently discovered that my Soundblaster Audigy card was causing 
> some problems to my software, so I switched over to the on-board Sigma 
> Tel sound system. All the problems disappeared, but I notice the output 
> level is quite low from the Sigma Tel to the rig. I've gone to the 
> obvious places to correct this, and with the windows volume control set 
> to the max, it still doesn't drive my 746 anywhere near as well as the 
> Audigy did. For example, on 160 meters, I could, if I chose to, run just 
> about 100 watts out using the Audigy card. Using the Sigma Tel I can 
> only get about 40 watts.
> 
> Am I overlooking something simple here? The only thing that changed 
> is where the cables plug in to the back of the PC. The cables all stayed 
> the same, as did the interface. Anyone know if this just may be how the 
> Sigma Tel works?
> 
> Tnx in advance
> Dave
> KB3MOW

__

Participe en Universidad 2008.
11 al 15 de febrero del 2008.
Palacio de las Convenciones, Ciudad de la Habana, Cuba
http://www.universi  dad2008.cu


 

[digitalradio] RFI follow-up

[Tony]

All,

I've had an RFI problem since December 2007. I was able to find the 
general location of the noise, but not the source. I phoned the special 
interference division of the Long Island power authority on Monday and 
left a message describing the situation. Got a call today from LIPA 
interference inspector Mike Malinowski and he told me that they'd come 
out and find the problem.

I was surprized when he mentioned the number of complaints they handle 
each year. The RFI issue seems more widespread than I imagined. The 
bottom line is that if the interference is radiating from something on 
the power lines where LIPA has access, it should be an easy fix. If it's 
coming from a neighbors home, LIPA will notify the owner and we'll have 
to proceed from there.

The best part of all this is that Mike is a ham (N2QOY). I guess it 
doesn't get any better than that!

Apologies for the off-topic post - pse reply direct.

Tony -K2MO 

Re: [digitalradio] Sigma Tel audio level

[Dave 'Doc' Corio]

Jose, I had hoped this thread would just pass into obscurity! I 
found the adjustment to make on the interface and now have my full power 
output.

One more small detail I overlooked before asking for help!

thanks, my friend!

73
Dave
KB3MOW


Jose A. Amador wrote:
>
>
> Dave,
>
> Getting only 40 watts out means you still need an audio level 4 dB higher.
>
> Going the easy way, can't you tweak some attenuator in your interface?
>
> 73,
>
> Jose, CO2JA
>
> Dave 'Doc' Corio wrote:
>
> > I recently discovered that my Soundblaster Audigy card was causing
> > some problems to my software, so I switched over to the on-board Sigma
> > Tel sound system. All the problems disappeared, but I notice the output
> > level is quite low from the Sigma Tel to the rig. I've gone to the
> > obvious places to correct this, and with the windows volume control set
> > to the max, it still doesn't drive my 746 anywhere near as well as the
> > Audigy did. For example, on 160 meters, I could, if I chose to, run 
> just
> > about 100 watts out using the Audigy card. Using the Sigma Tel I can
> > only get about 40 watts.
> >
> > Am I overlooking something simple here? The only thing that changed
> > is where the cables plug in to the back of the PC. The cables all 
> stayed
> > the same, as did the interface. Anyone know if this just may be how the
> > Sigma Tel works?
> >
> > Tnx in advance
> > Dave
> > KB3MOW
>
> __
>
> Participe en Universidad 2008.
> 11 al 15 de febrero del 2008.
> Palacio de las Convenciones, Ciudad de la Habana, Cuba
> http://www.universidad2008.cu 
>
> 
> 
>
> No virus found in this incoming message.
> Checked by AVG Free Edition. 
> Version: 7.5.516 / Virus Database: 269.19.19/1258 - Release Date: 2/4/2008 
> 10:10 AM
>   

Re: [digitalradio] Re: Possibilities of integrating digital radio to astronomy.

[Leskep]

If you use one end in Repeater mode you can remotely download
pictures as required from the webcam

This would then give you the camera link as well as the radio link
but you would need two sets of equipment - one at each end
and can be done on hf - vhf - uhf

It is not SSTV but Digital file transfer

Les


From: orionshelper 
Sent: Tuesday, February 05, 2008 3:00 PM
To: digitalradio@yahoogroups.com 
Subject: [digitalradio] Re: Possibilities of integrating digital radio to 
astronomy.


Thanks Les, that might be interesting for the image collection part 
of it. It looks like a nice SSTV program.

Martin, I was not able to get Google to translate the webpage from 
Dutch to English. Actually, when I run it through the Google 
translate, it just gives me a header page.

I have found several wireless (radio) setups that can support 
remoting the RS232 over pretty long distances. One system supports 
distance up to 40 miles and another up to 15 miles. These are not in 
the amateur radio realm, but there may still be something to do that. 
The operating frequencies are in the 900 Mhz range and in the 2.4 Ghz 
range. What I have found so far is in the commercial arena so I do 
not know if I should post links here yet. I do not want to violate 
posting rules.

I would still rather find something using amateur radio. I think it 
would be so much more fun.

--- In digitalradio@yahoogroups.com, "Leskep" <[EMAIL PROTECTED]> wrote:
>
> Have a look at EasyPal http://www.kc1cs.com/digi.htm
> It has facility for camera - may be worth investigating
> and the pics will be good
> Les
> 
> 
> From: orionshelper 
> Sent: Tuesday, February 05, 2008 6:27 AM
> To: digitalradio@yahoogroups.com 
> Subject: [digitalradio] Re: Possibilities of integrating digital 
radio to astronomy.
> 
> 
> Andrew and group ..
> 
> I joined in hopes of finding some way of integrating digital radio
(s) 
> to my existing telescope controls. Currently, they essientially use 
> standard RS232 for operation. In addition, I also want to be able 
to 
> retreive the images. These could either be in realtime video, or as 
> captures. I suspect that SSTV would not provide the desired 
resolution. 
> I would like to be able to use the scope(s) remotely at an extended 
> unmanned location where direct wiring is impractical. Radio would 
be 
> the only logical answer. Obviously,I suspect that the only way to 
do 
> this is going to be at 70 cm or above. Any suggestions on how to at 
> least create a realtime wireless RS232 link?
> 
> Thanks
> 
> --- In digitalradio@yahoogroups.com, "Andrew O'Brien" 
 
> wrote:
> >
> > We had a neew member join us today that said ...
> > 
> > "would like to explore possibilities of integrating digital radio 
to 
> > astronomy. This would be in interfacing digital mode radios to 
> > telescopes for remote control and image collection "
> > 
> > Any thoughts ?
> >
>



 

[digitalradio] Re: Possibilities of integrating digital radio to astronomy.

[orionshelper]

Thanks again Les. I downloaded the program and installed it. Swapped 
some pix back-n-forth with a couple of guys. It is definately a neat 
program. The image quality far exceeds what would be normally 
expected on SSTV. I will have to play with it more to get familliar 
with how to do the remote transfer of files. Not sure about the 
webcam aspect of it. That may be a different dog since "most" webcams 
themselves do not produce adequate images through an astronomical 
telescope. The cameras are just not light sensitive enough. "Some" 
security cameras come close, but still are usually short in the 
realtime exposure mode. Usually requires many exposures stacked on 
each other to get enough light to form a good image. Any ideas on how 
to do this with this program?

Thanks
--- In digitalradio@yahoogroups.com, "Leskep" <[EMAIL PROTECTED]> wrote:
>
> If you use one end in Repeater mode you can remotely download
> pictures as required from the webcam
> 
> This would then give you the camera link as well as the radio link
> but you would need two sets of equipment - one at each end
> and can be done on hf - vhf - uhf
> 
> It is not SSTV but Digital file transfer
> 
> Les
> 
> 
> From: orionshelper 
> Sent: Tuesday, February 05, 2008 3:00 PM
> To: digitalradio@yahoogroups.com 
> Subject: [digitalradio] Re: Possibilities of integrating digital 
radio to astronomy.
> 
> 
> Thanks Les, that might be interesting for the image collection part 
> of it. It looks like a nice SSTV program.
> 
> Martin, I was not able to get Google to translate the webpage from 
> Dutch to English. Actually, when I run it through the Google 
> translate, it just gives me a header page.
> 
> I have found several wireless (radio) setups that can support 
> remoting the RS232 over pretty long distances. One system supports 
> distance up to 40 miles and another up to 15 miles. These are not 
in 
> the amateur radio realm, but there may still be something to do 
that. 
> The operating frequencies are in the 900 Mhz range and in the 2.4 
Ghz 
> range. What I have found so far is in the commercial arena so I do 
> not know if I should post links here yet. I do not want to violate 
> posting rules.
> 
> I would still rather find something using amateur radio. I think it 
> would be so much more fun.
> 
> --- In digitalradio@yahoogroups.com, "Leskep"  wrote:
> >
> > Have a look at EasyPal http://www.kc1cs.com/digi.htm
> > It has facility for camera - may be worth investigating
> > and the pics will be good
> > Les
> > 
> > 
> > From: orionshelper 
> > Sent: Tuesday, February 05, 2008 6:27 AM
> > To: digitalradio@yahoogroups.com 
> > Subject: [digitalradio] Re: Possibilities of integrating digital 
> radio to astronomy.
> > 
> > 
> > Andrew and group ..
> > 
> > I joined in hopes of finding some way of integrating digital radio
> (s) 
> > to my existing telescope controls. Currently, they essientially 
use 
> > standard RS232 for operation. In addition, I also want to be able 
> to 
> > retreive the images. These could either be in realtime video, or 
as 
> > captures. I suspect that SSTV would not provide the desired 
> resolution. 
> > I would like to be able to use the scope(s) remotely at an 
extended 
> > unmanned location where direct wiring is impractical. Radio would 
> be 
> > the only logical answer. Obviously,I suspect that the only way to 
> do 
> > this is going to be at 70 cm or above. Any suggestions on how to 
at 
> > least create a realtime wireless RS232 link?
> > 
> > Thanks
> > 
> > --- In digitalradio@yahoogroups.com, "Andrew O'Brien" 
>  
> > wrote:
> > >
> > > We had a neew member join us today that said ...
> > > 
> > > "would like to explore possibilities of integrating digital 
radio 
> to 
> > > astronomy. This would be in interfacing digital mode radios to 
> > > telescopes for remote control and image collection "
> > > 
> > > Any thoughts ?
> > >
> >
>

Re: [digitalradio] RFI follow-up

[Vince]

Tony wrote:
> 
> 
> All,
> 
> I've had an RFI problem since December 2007. I was able to find the
> general location of the noise, but not the source. I phoned the special
> interference division of the Long Island power authority on Monday and
> left a message describing the situation. Got a call today from LIPA
> interference inspector Mike Malinowski and he told me that they'd come
> out and find the problem.
> 
> I was surprized when he mentioned the number of complaints they handle
> each year. The RFI issue seems more widespread than I imagined. The
> bottom line is that if the interference is radiating from something on
> the power lines where LIPA has access, it should be an easy fix. If it's
> coming from a neighbors home, LIPA will notify the owner and we'll have
> to proceed from there.
> 
> The best part of all this is that Mike is a ham (N2QOY). I guess it
> doesn't get any better than that!
> 
> Apologies for the off-topic post - pse reply direct.
> 
> Tony -K2MO
> 
> 

Please publish the telephone number that you used for the LIPA Special 
Interference Division.

TNX.

WA2RSX

[digitalradio] Re: RFI follow-up

[Tooner]

You might find some RFI help here:
http://groups.yahoo.com/group/radiointerference/

[digitalradio] Call for Papers - ARRL and TAPR Digital Communications Conference

[Mark Thompson]

Conferences: 
ARRL and TAPR Digital Communications Conference
The 27th DCC
September 26-28, 2008 - Chicago , Illinois



Introduction
Mark your calendar and start making plans to attend the premier technical 
conference of the year, the 27th Annual ARRL and TAPR Digital Communications 
Conference to be held September 26-28, 2008, in Chicago , Illinois. The 
conference location is the Holiday Inn Hotel, Elk Grove Village IL 
The ARRL and TAPR Digital Communications Conference is an international forum 
for radio amateurs to meet, publish their work, and present new ideas and 
techniques. Presenters and attendees will have the opportunity to exchange 
ideas and learn about recent hardware and software advances, theories, 
experimental results, and practical applications. 

Topics include, but are not limited to: Software defined radio (SDR), digital 
voice, digital satellite communications, Global Position System (GPS), 
precision timing, Automatic Position Reporting System® (APRS), short messaging 
(a mode of APRS), Digital Signal Processing (DSP), HF digital modes, Internet 
interoperability with amateur radio networks, spread spectrum, IEEE 802.11 and 
other Part 15 license-exempt systems adaptable for Amateur Radio, using TCP/IP 
networking over amateur radio, mesh and peer to peer wireless networking, 
emergency and Homeland Defense backup digital communications, using Linux in 
amateur radio, updates on AX.25 and other wireless networking protocols. 



Call for Papers
Technical papers are solicited for presentation at the 27th Annual ARRL and 
TAPR Digital Communications Conference to be held September 26-28, 2008 in 
Chicago , Illinois and publication in the Conference Proceedings. Annual 
conference proceedings are published by the ARRL. Presentation at the 
conference is not required for publication. Submission of papers are due by 
July 31st, 2008 and should be submitted to 
Maty Weinberg, ARRL
225 Main Street
Newington , CT 06111 
or via the Internet to [EMAIL PROTECTED] 




Details on Call for Papers 
Technical papers are solicited for presentation at the ARRL and TAPR Digital 
Communications Conference for publication in the Conference Proceedings. 
Annual conference proceedings are published by the ARRL. Presentation at the 
conference is not required for publication. 

The ARRL and TAPR Digital Communications Conference is an international forum 
for radio amateurs to meet, publish their work, and present new ideas and 
techniques. Presenters and attendees will have the opportunity to exchange 
ideas and learn about recent hardware and software advances, theories, 
experimental results, and practical applications. Topics include, but are not 
limited to: 
Software defined radio (SDR) 
Digital voice 
Digital satellite communications 
Global position system 
Precise Timing 
Automatic Position Reporting System (APRS) 
Short messaging (a mode of APRS) 
Digital Signal Processing (DSP) 
HF digital modes 
Internet interoperability with Amateur Radio networks 
Spread spectrum 
IEEE 802.11 and other Part 15 license-exempt systems adaptable for Amateur 
Radio 
Using TCP/IP networking over Amateur Radio 
Mesh and peer to peer wireless networking 
Emergency and Homeland Defense backup digital communications in Amateur Radio 
Updates on AX.25 and other wireless networking protocols 
Topics that advanced the amateur radio art 



Submission Guide Lines
Anyone interested in digital communications is invited to submit a paper for 
publication in the Conference Proceedings. Presentation at the Conference is 
not required for publication. If you know of someone who is doing great things 
with digital communications, be sure to personally tell them about this! 

See above for deadlines and where to submit your paper. 

Some quick guidelines: 
Papers should be on 8-1/2 X 11 inch paper with the following margins: left and 
right, 0.75 inch; top, 0.8 inch; and bottom, 1 inch (very important). 
Structure of paper should be (see single column example below, two column 
should follow a similar format): 
Title 
Author(s) with affiliation 
Abstract (200 words or less) 
Key words (3-5) 
Body 
Reference List 
Papers can be in one- or two-column format. 
Use 12-point Times Roman for the main body of text; do not number pages. 
Photos and drawings should have good contrast. Note: a photocopy gives a good 
indication of print quality. 
Electronic submissions can be made in any of the following formats: 
Adobe Acrobat PDF; 
Microsoft Word 
Reference citations and other topics not explicitly discussed in this list 
should follow a recognized standard format (APA, IEEE, etc). 
A biographical page is to be included with the manuscript. It should contain 
Name, Address, Phone, and E-mail for each author as well as a short descriptive 
paragraph about the first author. The bio page will be used to contact authors 
concerning the conference and presentation schedule. 
Release form: 
A formal release form is not required, but indi