rcidiot728

i know that there is a seperate section for radios, but it only has had like 140 posts, compared to this one over 7000 so just bare wit me

i was wonderin in races at tracks, how many trucks run at the same time cuz the radio i have can only come in like 6 different frequencies, so how many frequencies are there possible?

KyleSch

there are something like 40 different ones, but normally at a race everything is sorted out, if someone uses the same frequency as you, one of you will use another one, a good race track will probably have there own collection of crystals for this reason.

rcidiot728

well would the racer have to pay for the crystals, i mean i have never gone to a real track and i was just wonderin bout it, cuz there is a track about 30 minutes from where i live, but i wont go there til i get at least 2 more battery backs for my truck

caseyddr

My Feedback: (13)

they might charge you a rental fee.. i remember when i was really young i payed 20$ to use an old XLT for the day, he supplied battery packs and everything. They might charge you 5$ and make you sign a waver of some sort. Jus depends on the track.

i8tweety

My Feedback: (11)

I've yet to go to a track where they have crystals available to "rent" for the day if there is a conflict. The track would have to carry a variety of crystals (in both 75 and 27 band) for each radio manufacturer as they are not cross brand compatable in most cases. If there are some, they are the exception and not the rule.

Most tracks race upwards of 10 cars / trucks at a time. This is partially due to the fact that most lap counting systems (old and new) come with 2 sets of 10 transponders and the software that runs them is designed to keep track of no more than 10 cars at a time.

If the track is using a human spotter type of counting system, they typically run fewer cars.

dg2b

Same here. Never been to a race track where they rent crystals. But then again, some racetracks might have this program.

You bring extra sets and if it is taken and both racers don't have a channel free, you "might" get bumped to the next heat. I have been in the situation where "too bad" during a Q. Mains are different story.

The tracks I run on do allow up to 10. Depending on your frequency, 27mhz have 6 channels and 75mhz have 30 channels. During sign up, you will need to write down you main channel and backup. The race coordinator will "try their best" to accomodate all.

A lot (or most all) of the tracks now uses AMBRc which requires you to buy your own transponder. Some tracks have a transponder or two extras to lend. These transponders cost about $50. If you have your own, just register the transponder # with the track and you're set.

Some guys run 40mhz or 41mhz. Illegal in US.

caseyddr

My Feedback: (13)

ive never heard of renting out crystals either but i was jus saying IF

rcidiot728

thanks for the help, i still have the traxxas top qualifier radio, i was gonna get a better one once i get a job cuz right now i have no real money flow, so i am guessin that an am radio would be a better choice considerin the many frequencies?

i8tweety

My Feedback: (11)

AM and FM use the same frequencies. You can get either in 27 mhz and 75 mhz., so you have the same number of frequencies (crystals) to choose from either way (AM vs. FM)

BTW: AM stands for amplitude modulation and FM is frequency modulation.

packfan88

My Feedback: (2)

so why do people prefer fm?

for the "clearer signal" less interference thing?

i8tweety

My Feedback: (11)

Yes, frequency modulation (FM) is less prone to interference.

AM (or amplitude modulation) varies the intensity of the signal strenghth. FM varies the frequency within a specified range.

dg2b

I think you meant 75mhz. 72mhz is for aircraft use.

i8tweety

My Feedback: (11)

Thanks, I just corrected it in my post.

rcidiot728

ya i know wut fm and am mean, just cuz im young doesnt mean im stupid, i learned that in physical science

but if i remember correctly, fm radios have a greater range than am, correct me if im wrong

dg2b

I don't think anybody think you are stupid but now we know.

The response here is as complete as possible 1) to get some of us educated and 2) because all of us are helpful.

caseyddr

My Feedback: (13)

no body called you stupid idiot (Lol) im not either jus ur name is idiot ^_^

rcidiot728

well the idea of stupidity is reiforced by the physical science teacher at out school, he calls everyone retard, ***, dumass, and many others, and i know im not stupid, im in the top 10% of my class... of about 400 people and my average gpa is over 4.0

but since this thread has gotten popular i got another question

when painting a body and makin designs, is it easier to do it on the outside or inside, cuz i know if u paint the inside scratches wont show up as much

dg2b

Keep up this type of attitude and you "might" find some not wanting to reply.

You are a very smart person.

My last on this post.

rcidiot728

well what did i offend u or somethin, lighten up bud

caseyddr

My Feedback: (13)

both of u quit arguing... anyways your supposed to always paint hte body on the inside.

rcidiot728

thanks and bear with me, but this is my last question...

can u get rechargable battery packs for radios? not a bunch of reusable AA's but like a nicd or nimh battery pack

caseyddr

My Feedback: (13)

of course you can

rcidiot728

cool, i didnt know, but i do know that i would have to get a different radio to do that

caseyddr

My Feedback: (13)

no you wouldnt, any 8 AA radios can take a chargable pack (So i thought)

rcidiot728

really? in my traxxas tq radio it seems only AA's work in it though i could just get a couple of rechargeable AA batteries
maybe a pack would work, or maybe it wouldnt

but whatever it is i know its all a conspiracy for them to get my parents mad at me for spendin all my money on it, and anyone can agree wit that
... well maybe for others its the wife