Go to Post “FIRST is your experience and you cannot let anyone else hinder what you can achieve.” - fuzzwaz [more]
Home
Go Back   Chief Delphi > Technical > Control System
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
Thread Tools Rate Thread Display Modes
  #121   Spotlight this post!  
Unread 13-02-2007, 03:53
nsr's Avatar
nsr nsr is offline
nitroussuprarola
AKA: Ryan G.
FRC #2090 (P.E.T.T.)
Team Role: Engineer
 
Join Date: Feb 2007
Rookie Year: 2007
Location: Hawaii
Posts: 58
nsr is on a distinguished road
Send a message via AIM to nsr Send a message via MSN to nsr
Re: does anyone have OI and RC radio issues

yea i don't think we have any problems yet >.<

looking forward to your open house on thursday? ^^
__________________




  #122   Spotlight this post!  
Unread 13-02-2007, 07:11
mtaman02's Avatar
mtaman02 mtaman02 is offline
FIRST's Spare, Queuer &amp; Tech guy =)
AKA: Mike M. / Mouse =)
no team (FRC Volunteer)
Team Role: Alumni
 
Join Date: Jun 2002
Rookie Year: 2001
Location: Staten Island, NYC
Posts: 1,504
mtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant future
Send a message via AIM to mtaman02 Send a message via Yahoo to mtaman02
Re: does anyone have OI and RC radio issues

Quote:
Originally Posted by waialua359 View Post
I am very concerned that as it gets close to the end of build season, many teams will be faced with this problem and the ramifications may be enormous such as not being able to test, waiting for new radios, etc.
Well as far as not being able to test & waiting for new radios the teams that know this problem already and who have / haven't decided to seek the IFI gods there is still hope for them. One of which is kinda lengthy - Tether the robot (and too be on the careful side if you choose to tether you robot make sure that you do not secure the tether cable competely If the robot should suddenly lose control make sure the tether cable is unscrewed from the OI or the RC side so that the plug comes out w/o destroying the tether port on either unit. Unless of course you put chocks under it then it isn't as lengthy & you can secure the tether cable if you wish.) The other is to use the 2006 Radios which work perfectly with this years OI & RC. Of course these are temporary solutions and will probably need to resolve whatever issues with their radios while the robot has been shipped and hopefully have the newer / re-built radios in time for their 1st. regional.

Like many have said and I will repeat - IF YOU HAVE PROBLEMS WITH YOUR RADIOS TRY PLACING IT AWAY FROM THE METAL CHASSIS & ANY MOTORS, TETHER YOUR ROBOT TO MAKE SURE THAT IT'S ONLY A PROBLEM WITH THE RX/TX ON WIRELESS AND NOT ON A DIRECT CONNECT LEVEL, IF IT'S A PROBLEM WITH THE ROBOT BEING WIRELESS THEN USE THE 2006 RADIO MODEMS, IF PROBLEM IMPROVES WITH THE 2006 RADIO MODEMS THEN CONTACT IFI AND GET A RMA AND SHIP THE 2007 RADIO MODEMS BACK SO THEY CAN REPAIR / REPLACE THEM AS NECESSARY (MAKE SURE YOU ARE VERY THOROUGH WHEN REPORTING THE PROBLEM OTHER WISE THEY WILL FLOW CHART YOU TO DEATH. THE MORE THOROUGH YOU ARE THE LESS QUESTIONS YOU WILL NEED TO ANSWER THE QUICKER YOU CAN OBTAIN AN RMA#. AND AS AL S. HAS SAID MANY TIMES CHECK YOUR WIRING VERY CAREFULLY, WE'RE ALL HUMAN AND MAKE MISTAKES VERY EASILY ESPICIALLY UNDER PRESSURE.
__________________
Past FIRST Robotics Events that I proudly volunteered at:
FLL: NY State Competition '03
FRC: NYC Remote Kickoff '04 & NYC Regionals '04-'15 ,'10-'13 & NJ Regionals '06-'10, Finger Lakes Regional '09 & SBPLI Regional '08-'15 and the World Championship in '05 (Galileo Field) '07 (Newton Field) '09 (Practice Fields Attendant / FTA(A)), CeBIT Convention in '04 & NextFEST in '06 both held @ the Javitts Center, Monty Madness '07-'10, Panda-monium '08, B.Eruption '08 & '09, Ramp Riot '08, PARC '09 & '10, BR^2 '09 & Wol. Inv. '09 -'15
2015 FIRST Robotics Off Season Events that I hope to volunteer at:
Where is Wolcott Invitational
2015 FIRST Robotics Events that I will be volunteering at:
SBPLI Reg. & Championships
Volunteer Resume:
Alt & Lead Team Queuer, Field Repair/Reset, Field Setup/Breakdown, Spare Parts Attendant, Field Power Controller/Score Keeper, Co-Emcee & Official Scorer, Control System Advisor, FIRST Tech Advisor Assistant & recently Practice Field Attendant.

Last edited by mtaman02 : 13-02-2007 at 07:16.
  #123   Spotlight this post!  
Unread 13-02-2007, 11:01
Japper's Avatar
Japper Japper is offline
Registered User
FRC #3692 (RocknRobots)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 2007
Location: Rutland Wisconsin
Posts: 147
Japper has a spectacular aura aboutJapper has a spectacular aura about
Re: does anyone have OI and RC radio issues

WE were successful at correcting the problem that we were having last night..

Here is what we did:

1). We moved the antenna on the robot so that it is now as high as we could get it and made sure the antenna itself was totally vertical (perpendicular to the track).

2). The antenna unit was mounted to a metal vertical mast on our robot so we attached an "L" bracket to this metal mast and a piece of 1/2" plywood and attached the antenna to the plywood. The antenna is also cable tied to the plywood with a small piece of foam to cushion it and to keep it from touching metal.

3). We re-routed the data cable from the RC unit on the robot to the antenna unit so that is was not near any motors, victors or spikes.

With these three things we did not have one drop out condition all night long...

What a relief it is to clear that problem up... only a few more other problems to figure out.
  #124   Spotlight this post!  
Unread 16-02-2007, 19:49
mtaman02's Avatar
mtaman02 mtaman02 is offline
FIRST's Spare, Queuer &amp; Tech guy =)
AKA: Mike M. / Mouse =)
no team (FRC Volunteer)
Team Role: Alumni
 
Join Date: Jun 2002
Rookie Year: 2001
Location: Staten Island, NYC
Posts: 1,504
mtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant futuremtaman02 has a brilliant future
Send a message via AIM to mtaman02 Send a message via Yahoo to mtaman02
Re: does anyone have OI and RC radio issues

You know what burns me more then anything is that IFI is 1) very doubtful of our problem and that we the programmers and team members are imagining things when the RC system fails for whatever reason, 2) forcing us to build around a problem in which they caused.

Basically this is what they are doing: We IFI have chosen to upgrade the hardware on the Radio Modems to make it bigger and much more harder to mount. You have to mount our radios in such away that it is put in danger of breaking if you don't mount it to our guide lines you will suffer signal degradation. What ever problems you come across are through your own fault and not of ours even though we've tested unsuccessfully the new radios at an offseason event. We will however allow you to send your radios to us for repair / adjustment or replacement if you can correctly identify the problems you are having.

It's bad enough we have to design a robot within 6 weeks to FIRST specs. Now we have to do it to IFI specs to. I don't like this one bit but hey if anyone thinks otherwise then please share your opinion.

BTW got my teams radios back but don't have any time to test them. Much to Much work left to get done. I guess we'll find out come the first regional.
__________________
Past FIRST Robotics Events that I proudly volunteered at:
FLL: NY State Competition '03
FRC: NYC Remote Kickoff '04 & NYC Regionals '04-'15 ,'10-'13 & NJ Regionals '06-'10, Finger Lakes Regional '09 & SBPLI Regional '08-'15 and the World Championship in '05 (Galileo Field) '07 (Newton Field) '09 (Practice Fields Attendant / FTA(A)), CeBIT Convention in '04 & NextFEST in '06 both held @ the Javitts Center, Monty Madness '07-'10, Panda-monium '08, B.Eruption '08 & '09, Ramp Riot '08, PARC '09 & '10, BR^2 '09 & Wol. Inv. '09 -'15
2015 FIRST Robotics Off Season Events that I hope to volunteer at:
Where is Wolcott Invitational
2015 FIRST Robotics Events that I will be volunteering at:
SBPLI Reg. & Championships
Volunteer Resume:
Alt & Lead Team Queuer, Field Repair/Reset, Field Setup/Breakdown, Spare Parts Attendant, Field Power Controller/Score Keeper, Co-Emcee & Official Scorer, Control System Advisor, FIRST Tech Advisor Assistant & recently Practice Field Attendant.
  #125   Spotlight this post!  
Unread 16-02-2007, 21:46
Swampdude's Avatar
Swampdude Swampdude is offline
Registered User
AKA: Dan Quiggle
FRC #0179 (Children of the Swamp)
Team Role: Engineer
 
Join Date: Jan 2003
Rookie Year: 1999
Location: West Palm Beach, FL
Posts: 671
Swampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond repute
Re: does anyone have OI and RC radio issues

Just an update from us. We've mounted this thing in the best possible way you could imagine. It's high, its amost 1' away from any metal ( mounted to a plastic panel up in the air. It's vertical and the wires route clearly away from everything that could cause interference. AND WE STILL HAVE DROPOUTS. Not as many but they happen every minute or so, for a second or 2. I'm convinced there's nothing you can do to make these things work properly. They are definitely defective and poorly designed. When I get to our regional the first thing I will do is ask if we can use the 06 radios.
__________________
www.179swampthing.org

  #126   Spotlight this post!  
Unread 16-02-2007, 22:42
Unsung FIRST Hero
Mike Betts Mike Betts is offline
Electrical Engineer
no team
Team Role: Engineer
 
Join Date: Dec 2001
Rookie Year: 1995
Location: Homosassa, FL
Posts: 1,442
Mike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond repute
Re: does anyone have OI and RC radio issues

Dan,

First of all, let me say that I respect your opinion and your posts have always had merit. I am going to vent a bit and I apologize for using you as a target but feel it better you than using a student or someone less experienced.

Now to the meat of it:

Quote:
Originally Posted by Swampdude View Post
...When I get to our regional the first thing I will do is ask if we can use the 06 radios.
If you follow that path, you will certainly fail.

Let's assume that the 06 radios work better and that the 07 radios have a systemic problem. If you were running the competition and a number of teams brought the 06 radios and petitioned to have them allowed, would you allow it? Would it be fair to the teams who did not bring 06's? How about the rookies who can not get 06's?

Answer: You could not allow the 06 radios to be used because everyone waited too long to complain!

I looked on the IFI forum today and found only 3 posts about radios not working since the kickoff. Let's assume another 10 teams called on the phone. This is only 13 teams out of 1307 having a problem as far as they know. There are a lot of companies out there which would love a 0.1% return rate.

Your team (and everyone else who is having problems), MUST make this issue clear to both FIRST and to IFI.

$@#$@#$@#$@#$@#ing and moaning on CD will not resolve the problem.

OK. I'm done now and, once again, I'd like to apologize for singling you out. Please forgive me...

Mike
__________________
Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...
  #127   Spotlight this post!  
Unread 16-02-2007, 23:29
Dave K.'s Avatar
Dave K. Dave K. is offline
Engineer/Mentor
FRC #0930
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 2005
Location: WI
Posts: 91
Dave K. is a splendid one to beholdDave K. is a splendid one to beholdDave K. is a splendid one to beholdDave K. is a splendid one to beholdDave K. is a splendid one to beholdDave K. is a splendid one to beholdDave K. is a splendid one to behold
Re: does anyone have OI and RC radio issues

Quote:
Originally Posted by Mike Betts View Post
Dan,
Let's assume that the 06 radios work better and that the 07 radios have a systemic problem. If you were running the competition and a number of teams brought the 06 radios and petitioned to have them allowed, would you allow it? Would it be fair to the teams who did not bring 06's? How about the rookies who can not get 06's?

Answer: You could not allow the 06 radios to be used because everyone waited too long to complain!

I looked on the IFI forum today and found only 3 posts about radios not working since the kickoff. Let's assume another 10 teams called on the phone. This is only 13 teams out of 1307 having a problem as far as they know. There are a lot of companies out there which would love a 0.1% return rate.

Your team (and everyone else who is having problems), MUST make this issue clear to both FIRST and to IFI.

$@#$@#$@#$@#$@#ing and moaning on CD will not resolve the problem.

Mike
Our team was one of the first to report problems to IFI, reportedly the 5th to contact IFI and the 3rd to return radios for evaluation. IFI gave them a once over, but didn't really find anything wrong.

Testing since their return 2-3 weeks ago, shows an improvment, but not resolution, and I have continued to communicate that message to IFI with hopes that they would be able to provide a solution.

In all other areas, my contact with IFI has been a positive one, and I think that they've responded to my requests in a very reasonable and timely manner, so when it comes to the problem with the radios, I've given them the benefit of the doubt, and for the most part I still do.

Recognizing that we are down to the wire here, and still don't have a viable solution in hand, on Thursday I once again put the question to IFI if they wanted to RMA our existing radios again, or if they wanted to swap them out with others, and also indicated that I felt it was time to elevate this issue to FIRST's attention, and the response was that they'd pass the request up the food chain.

On Thursday afternoon, I sent an e-mail to FIRST's team contact e-mail found here and outlined our ongoing problems with the radios and that we were not receiving a solution to this problem from IFI. I ended by suggesting that the regional events make use of 2006 and prior year's radios, and that all non-rookie teams bring old/spare radios to provide to the 2007 rookies.

I have also communicated this same information and request to the regional FIRST contact's to pass along to FIRST as well.

So clearly I concur with the thurst of Mike's input here in that any team that is continuing to experience a radio communication problem, that has already worked with IFI and not yet obtained a satisfactory solution, that it is probably time to make certain that FIRST hears your concerns. Ultimately it is their call as to how to fairly address the problem.

There seem to be many teams reporting success with their radios, so clearly they will have an additional advantage over teams such as ours.

Use the FIRST e-mail address in the link I posted above to make your concerns known. You can also find FIRST regional contact information on this webpage.

Please keep your comments and concerns constructive an professional, and please refrain from bashing IFI. The reason for the change in the radios was outside of their control, and while I don't factually know the timetable they had to work with, I suspect it was quite short.
__________________
--Dave
  #128   Spotlight this post!  
Unread 17-02-2007, 07:17
Doug Leppard's Avatar
Doug Leppard Doug Leppard is offline
Registered User
FRC #1902 (Exploding Bacon)
Team Role: Engineer
 
Join Date: Apr 2003
Rookie Year: 2003
Location: Orlando
Posts: 435
Doug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond repute
Send a message via AIM to Doug Leppard
Re: does anyone have OI and RC radio issues

1902 is having these problems. It wasn't seen until we placed the radios in a real robot, before we tested in a VEX like setup.

We will send an email to IFI also.
__________________
Doug Leppard
  #129   Spotlight this post!  
Unread 17-02-2007, 08:06
Swampdude's Avatar
Swampdude Swampdude is offline
Registered User
AKA: Dan Quiggle
FRC #0179 (Children of the Swamp)
Team Role: Engineer
 
Join Date: Jan 2003
Rookie Year: 1999
Location: West Palm Beach, FL
Posts: 671
Swampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond reputeSwampdude has a reputation beyond repute
Re: does anyone have OI and RC radio issues

We DID contact IFI, they kindly directed us to the forum and said that should fix it, have a nice day. In other words we got that same sentiment I'm seeing other people recieved, its not our equipment its how your using it. And that was about 2 weeks ago.
__________________
www.179swampthing.org

  #130   Spotlight this post!  
Unread 17-02-2007, 08:16
Doug Leppard's Avatar
Doug Leppard Doug Leppard is offline
Registered User
FRC #1902 (Exploding Bacon)
Team Role: Engineer
 
Join Date: Apr 2003
Rookie Year: 2003
Location: Orlando
Posts: 435
Doug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond reputeDoug Leppard has a reputation beyond repute
Send a message via AIM to Doug Leppard
Re: does anyone have OI and RC radio issues

Quote:
Originally Posted by Swampdude View Post
We DID contact IFI, they kindly directed us to the forum and said that should fix it, have a nice day. In other words we got that same sentiment I'm seeing other people recieved, its not our equipment its how your using it. And that was about 2 weeks ago.
We didn't see the problem until we tested heavily this week. I think a lot of teams are having the problem but just don't see it yet.

Kind of scary thinking your bot can stop at anytime.
__________________
Doug Leppard
  #131   Spotlight this post!  
Unread 17-02-2007, 17:10
Madison's Avatar
Madison Madison is offline
Dancing through life...
FRC #0488 (Xbot)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1999
Location: Seattle, WA
Posts: 5,244
Madison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond reputeMadison has a reputation beyond repute
Re: does anyone have OI and RC radio issues

(I haven't gone through most of this thread.)

We can confirm that our cellular phones are interfering the radio communication between our OI and RC. It seems to reset or otherwise turn off the OI completely -- our robot stops responding to commands, the LEDs on our OI turn off and things are otherwise completely useless.

Is this a problem with our radios or is this a generic defect with the new IFI radios?

Thanks.
__________________
--Madison--

...down at the Ozdust!

Like a grand and miraculous spaceship, our planet has sailed through the universe of time. And for a brief moment, we have been among its many passengers.
  #132   Spotlight this post!  
Unread 17-02-2007, 19:01
Rich Kressly's Avatar
Rich Kressly Rich Kressly is offline
Robot/STEM troublemaker since 2001
no team (Formerly 103 & 1712. Now run U.P. Robotics (other programs))
Team Role: Mentor
 
Join Date: Oct 2001
Rookie Year: 2001
Location: Pennsburg, PA
Posts: 2,045
Rich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond reputeRich Kressly has a reputation beyond repute
Re: does anyone have OI and RC radio issues

Quote:
Originally Posted by mtaman02 View Post
You know what burns me more then anything is that IFI is 1) very doubtful of our problem and that we the programmers and team members are imagining things when the RC system fails for whatever reason, 2) forcing us to build around a problem in which they caused.

Basically this is what they are doing: We IFI have chosen to upgrade the hardware on the Radio Modems to make it bigger and much more harder to mount. You have to mount our radios in such away that it is put in danger of breaking if you don't mount it to our guide lines you will suffer signal degradation. What ever problems you come across are through your own fault and not of ours even though we've tested unsuccessfully the new radios at an offseason event. We will however allow you to send your radios to us for repair / adjustment or replacement if you can correctly identify the problems you are having.

It's bad enough we have to design a robot within 6 weeks to FIRST specs. Now we have to do it to IFI specs to. I don't like this one bit but hey if anyone thinks otherwise then please share your opinion.

BTW got my teams radios back but don't have any time to test them. Much to Much work left to get done. I guess we'll find out come the first regional.
While the radio issues are frustrating, please understand one thing. IFI didn't "choose" to upgrade anything. The guts of the old radios are obsolete. In fact, so obsolete that the only thing to do was redesign. It just wasn't possible to create another 1300 sets of the old ones. Why are they so big? That's what it took to try and make the right thing happen. IFI had a significant challenge in making the new radios work. They were testing prototypes as early as July 2006 in competition conditions and were still testing during offseason competition in November 2006.

This is not a situation IFI created, but rather a huge challenge they they have been working like crazy to overcome. The solutions they are providing are the best that currently exist.
__________________
technology, innovation, and invention without a social conscience will only allow us to destroy ourselves in more creative ways
  #133   Spotlight this post!  
Unread 17-02-2007, 19:05
waialua359's Avatar
waialua359 waialua359 is offline
Mentor
AKA: Glenn
FRC #0359 (Hawaiian Kids)
Team Role: Mentor
 
Join Date: Apr 2003
Rookie Year: 2000
Location: Waialua, HI
Posts: 3,315
waialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond repute
Talking Re: does anyone have OI and RC radio issues

Lets all remember that every team is under different circumstances. Some teams havent reported issues because they didnt have a robot until maybe very recently, enough for them to test.
We were fortunate to have finished a little earlier, thus being the 1st ones to start this thread and report it. Im sure teams are more worried about other bigger things such as building a robot.
For example, we just finally put the diagnostic light on and the solid state relay doesnt work. Then we find out that some teams got the wrong one, which is the case for our team. In addition, we find more info on other threads.
People wont search some threads if there is no problem/challenges to search questions for.

By the way, will the competition have spares? We participate the 1st weekend of competitions already!
  #134   Spotlight this post!  
Unread 17-02-2007, 19:12
bjimster1's Avatar
bjimster1 bjimster1 is offline
Registered User
AKA: Jimmy Bourne
FRC #1029 (Wolvcats)
Team Role: Mentor
 
Join Date: Mar 2005
Rookie Year: 2004
Location: Miami, FL
Posts: 117
bjimster1 is just really nicebjimster1 is just really nicebjimster1 is just really nicebjimster1 is just really nice
Send a message via AIM to bjimster1
Re: does anyone have OI and RC radio issues

I think we have found a correlation between this and the use of cell phones, especially if you are getting a call or on the phone. Today I got several phone calls while right near the robot as which point RC and OI lost communication. coincidence? I don't think so though, I am not 100%. I'm no engineer or RF expert but thats what I have been able to observe.
__________________
-2006 UCF Quarterfinalists w/ 1345 & 21
-2005 Peachtree Quarterfinalists w/ 1180 & 462
-2005 UCF Quarterfinalists w/ 1694 & 348

CMU '11
  #135   Spotlight this post!  
Unread 17-02-2007, 19:15
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,113
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: does anyone have OI and RC radio issues

Quote:
Originally Posted by M. Krass View Post
We can confirm that our cellular phones are interfering the radio communication between our OI and RC.
We had an open house today. Students have reported occasional communication glitches over the past few weeks, but when there were a couple dozen spectators gathered around the field, things got very squirrely. After the guests moved away, all was well again. My guess at the time was that it was all the cell phones in people's pockets causing interference.
Closed Thread


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Does Anyone Have a Liability Form? Beth Sweet General Forum 5 21-12-2004 22:58
Does anyone Have? Chris Championship Event 0 24-04-2003 18:46
Does Anyone have advice archiver 2001 2 23-06-2002 23:50
Does anyone have... archiver 1999 2 23-06-2002 22:59
Does anyone have a picture of the Pratt and Whitney engine that was at Nats.? Elgin Clock Championship Event 4 08-05-2002 21:31


All times are GMT -5. The time now is 21:48.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi