does anyone have OI and RC radio issues

[waialua359]

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

[mcurtis]

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

[waialua359]

IFI told me this morning that they will want to investigate your radios when you send them back. We are sending ours back already also.

[mtaman02]

Ok I have a few questions and maybe I should post them on IFI's Forums but I'll give here a shot first:

1) All though a few teams have come forward and made the rest of us aware of the OI & RC Modem problems - Does this effect all the teams radios?
2) Is there a way to find out if your OI & RC Modem is defective by just plugging everything in as far as joystick or 2 / power / maybe a speed controller & a victor - Basically not setting up completely but enough to get everything talking and making everything look like its under joystick control or does the control system need to be completely setup?
3) Should teams just go and contact IFI and talk with their representatives under the assumption that the OI & RC Modems are defective w/o actually hooking everything up and finding out first.

[Aidan F. Browne]

Originally Posted by mtaman02

Ok I have a few questions and maybe I should post them on IFI's Forums but I'll give here a shot first:

1) All though a few teams have come forward and made the rest of us aware of the OI & RC Modem problems - Does this effect all the teams radios?
2) Is there a way to find out if your OI & RC Modem is defective by just plugging everything in as far as joystick or 2 / power / maybe a speed controller & a victor - Basically not setting up completely but enough to get everything talking and making everything look like its under joystick control or does the control system need to be completely setup?
3) Should teams just go and contact IFI and talk with their representatives under the assumption that the OI & RC Modems are defective w/o actually hooking everything up and finding out first.

Team Update #6 seems to address your concerns -- looks like IFI is working on it.

[mtaman02]

Originally Posted by Aidan F. Browne

Team Update #6 seems to address your concerns -- looks like IFI is working on it.

Ahh see this is the end result of me not keeping up on the team updates thanks for pointing that out i'll go ahead and download the update

[waialua359]

As of now, of the 4 teams participating in Hawaii, Team 368 has also tested out their RC and OI with the new radios. After talking with them last night, they have not encountered any problems with the radios so far.
It seems that since there has not been too many teams posting problems here, they either havent tested them yet, have no problems with them, or havent read this post.

Can anyone who has tested their 2007 radios post if they DO work OK?

[Racer26]

Well, I have my own comment to add to this issue.

1075 got the 07 system set up on a bot tonite, and I IMMEDIATELY noticed alot of lag in the system... soon after that, i realized it was the radio cutting out on me. Sounds EXACTLY like what you're saying, the Master chip isn't shutting the bot down on radio loss... this is rather distressing to take your hands off the controls and the robot doesn't stop.

Our first thought laid the blame with our placement of the radio... it is within a few inches (read 4-6") of two CIM motors. After reading this, I think maybe the blame needs to be laid on the v13 master code, or the new radios.

Edit: We were using the 07 RC / 07 OI / 07 Radios

[waialua359]

I really dont think its the master code. we encountered the problems with the older u012 and u013 codes alike. We used three different robots, including this year's robot base and tried all the likely scenarios to try and pinpoint the source of the problem, including orientation, location, etc. the new master code worked perfectly with our old radios also. Unless, the new master code is geared towards the old radios??

[waialua359]

Our FCC ID for our RC is UKU-RC01.
Our FCC ID for our OI is UKU-OI01.

[finni]

fcc exibits on the lisence
OI. Modem https://gullfoss2.fcc.gov/prod/oet/cf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout =500&calledFromFrame=N&application_id=606267&fcc_i d='UKU-OI01'

RC. modem
https://gullfoss2.fcc.gov/prod/oet/cf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout =500&calledFromFrame=N&application_id=642706&fcc_i d='UKU-RC01'

[generalsnipe]

we have a problem with our oi and rc, i got it to connect and we were all happy, but when we went to power it back up, it just didnt want to work. ifi has not posted anything yet about the problem but i hope they fix it, the robot workes in teather mode

[mcurtis]

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

[roboticsguy1988]

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

[waialua359]

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.