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Unread 25-01-2007, 23:37
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Wink Re: does anyone have OI and RC radio issues

its now confirmed 100% that our radios are having issues. IFI has not posted an answer to my question yet because they are still investigating the issues.
If anyone has similar problems, please post.

Thanks,
Hawaiian kids
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Unread 26-01-2007, 07:05
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Re: does anyone have OI and RC radio issues

We should get our radios today. IFI has been great to deal with and very responsive. Sure makes a difficult situation a little easier.

Maynard
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Unread 27-01-2007, 22:54
mcurtis mcurtis is offline
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Re: does anyone have OI and RC radio issues

Ran the replacement modems today for nearly an hour without any failures. With the original modems we never went longer than 10 minutes with out a loss of signal. While we still need to test them further, it's very encouraging.

Maynard
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Unread 27-01-2007, 23:29
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Re: does anyone have OI and RC radio issues

Team 1501 is also having the same problem. We have already experienced things like the disbale not wokring when it should etc. When it was first rbought to my attention and i was testing it we let go of the joysticks and the robot did not stop until it scooted a table a good 2 feet or so.

We usually try to have extra radio modems, victors, and spikes, so when the radio modems come in we will switch them out and see what happens.

*EDIT
I wanted to add that, we had a problem simular last year. We had came to the conclusion that it was static electricity coming through a custom cable. Once the cable was removed off the robot, we didn't have the problem again.

I have also seen (as mentioned elsewhere in this thread) the robot do this when the backup battery gets low. I did not think of the frame and the antenna being close together as causing a problem, but will check on that.

So far we have tried a bunch of things. While it has only happened a few times, when it does happen it goes on for a little bit. I think the last time I seen a problem was 2 or 3 days ago

*EDIT
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Last edited by roboticsguy1988 : 27-01-2007 at 23:47.
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Unread 29-01-2007, 16:09
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Re: does anyone have OI and RC radio issues

I hope we get the new ones today so we can test them out.

Maynard-is your radios still working without problems?

We will post whether our new radios work once we get them.
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Unread 29-01-2007, 17:32
mcurtis mcurtis is offline
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Re: does anyone have OI and RC radio issues

It was Saturday we tested them, and we did not meet Sunday. Not sure how much we will run them tonight. We spent over two nights trying to resolve the problem before we got replacements, so we're playing catch up. I'll let you know how it goes.

I shipped the old modems back today.

Maynard
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Unread 31-01-2007, 19:19
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Re: does anyone have OI and RC radio issues

From another thread on this subject...
Quote:
Originally Posted by StretchyAlien View Post
While attempting to fix this problem, we may have accidentally stumbled over the answer. Our cell phones appear to be interfering with the signals between the radios. Try placing your cell phone near the radio and calling it, and see if this causes the interference. The "random" timing of the interruption may be the cell phones reconnecting to their respective service towers.
Any merit?
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Unread 31-01-2007, 19:37
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Re: does anyone have OI and RC radio issues

I am not sure how many people are having problems with the OI and RC, but from what I can tell we are one of the few unlucky ones. I think we will be contacting IFI soon about our glitches. Namely, the robot running several seconds after it drove into our makeshift player station. It's nice to see that they are doing something about this though.

Good Luck to all of you and I hope that not everyone is affected on this one.
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  #9   Spotlight this post!  
Unread 31-01-2007, 20:11
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Re: does anyone have OI and RC radio issues

cell phones are not the issue that's for sure. However, we have yet to try our new radios yet since we were powdercoating parts of our robot.
We will try it today and see if IFI has fixed our problem.
Again, I will keep it posted once we find out.
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Unread 05-02-2007, 17:25
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Re: does anyone have OI and RC radio issues

we've had some similar things, but only for the short term. after disabling the robot goes for about a second, and then stops what's up with that?
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Unread 05-02-2007, 17:27
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Re: does anyone have OI and RC radio issues

I was unawair of the upgraded master code I will have to d/l it into the RC tomorrow afternoon but me personally I think it may be a hardware problem more then a software problem.
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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.
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Unread 07-02-2007, 14:22
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Re: does anyone have OI and RC radio issues

We saw this in one of our test drives. We discovered that our antenna was folded down into the frame of the robot. This shielded the antenna from smooth communication with the controller. It just lost contact for short periods of time and came back. Check to see if your antenna is being blocked by parts of your robot.
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Unread 07-02-2007, 17:44
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Re: does anyone have OI and RC radio issues

I talked to IFI yesterday (more importantly an IFI guy that I usually see at my local competition - a good friend) and we went over some "possiblities" such as whats on the robot as far as motors and everything. I explained to him that we were using all of the 2007 stuff on a 2003 robot and he said that I may be tripping some breakers and thats why the OI loses the RC - I told him I doubt it since the robot A) Has not been used / touched in 3 - 4 years B) There was nothing ever wrong with the way it was wired and worked perfectly with all the 2003 gear. We ruled out any kind of interference that may make the 2007 stuff stop talking for brief periods of time. So as it stands to him everything is working fine and the OI - RC radio problem lies inside the robot and whatever modules that are in there to make it move.

He says that if all the Lights on the OI & RC are green at the time of Signal Loss that it is not actually the OI & RC that is losing the signal but a wiring problem that is making it lose the signal possibly all the breakers tripping at once. When I asked about me d/l the beta version aster code 14 he says that it won't solve my problem that its not software related.

I will probably try again with the 2007 stuff on another robot - maybe the 2001 robot since I know for a fact that one has not been touched at all and see if I'm getting the same problems. The 2007 stuff works great on tether just not on the radio. I will also try the 2006 radios if my old coaches let me and see what transpires from that. After I'm done doing that and see what happens I will call IFI again and hopefully someone else will answer and give me a different opinion. BTW the reason I'm not testing on the 2007 robot is b/c it's still getting the finishing touches and is not ready for the control system. Should I wait for the '07 robot to be finished or keep trying it on older robots that I know are Electrically & Pneumatically Sound?
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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.
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Unread 07-02-2007, 18:08
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Re: does anyone have OI and RC radio issues

From the IFI FAQ be careful when using this year's radios with older robots. Since they just released v14 of the master code with the most recent FIRST bulletin, you may want to use that for any older robot controller tests. It's not clear they've tested v14 with any older RC's, so if there's any trouble try using v13 instead.

Which IFI guy did you talk to?

I wouldn't assume the radios have an issue until you've used this year's controller with them, and the v14 update. IFI is turning our radios around in 1 day, so you've still got time to get them repaired if necessary. Using last year's radios with this year's controller also works perfectly fine.
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Unread 07-02-2007, 18:11
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Re: does anyone have OI and RC radio issues

Hrm let me be a little more thorough I used everything in '07 Kit - '07 Radios with the '07 controllers. Nothing was mixed matched unless you meant not to use the '07 Radios and '07 Controllers on a previous year robot.
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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.
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