R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 05-13-2007, 11:11 AM   #1
Tech Initiate
 
Join Date: Feb 2007
Posts: 48
Default am radio and crystals.

I have a rtr with a am radio. I dont plan on upgrading the radio this year but I need different crystals so I dont conflicts with other people cars. my brother told me that radio shack has xmod crystals with the 6 channels for $16.00 . My local hobby shops wants $7 per channel. So is there anything different about the xmods crystal they look the same?
Jaysun is offline   Reply With Quote
Old 05-13-2007, 11:23 AM   #2
Tech Adept
 
Join Date: May 2007
Location: The Hague, Holland
Posts: 205
Default

Hello Jaysun, I don't know for sure if I understand you post correctly. But I think it is about crystals which are cheaper than the specific crystals for your transmitter.

That's right, and logical, most manufacturers of transmitters/receivers also make there own crystal (except for Synthesizer and Spectrum, but that's an other story). And the crystals of the manufacturer itself are (normally) better than crystal of another or "no" manufacturer. This is because the crystals of the manufacturer itself are specific calibrated for that brand of transmitter/receiver. So it is possible that with another brand of crystals the receiver/transmitter wont work properly, or that you will have lots of glitches. So I recommend to buy the manufacturers own crystals. Although they are more expensive. When having a glitch and breaking something you should already pay more money than without that glitch and the broken parts. Furthermore it is not a nice way to race when you know you've got a big chance of getting a glitch.
Rick Thomson is offline   Reply With Quote
Old 05-13-2007, 11:42 AM   #3
Tech Initiate
 
Join Date: Feb 2007
Posts: 48
Default

Thanks thats a good point. Just being new tring not to over spend on certain parts. My budget is tight but sometimes being to cheap cost more.
Jaysun is offline   Reply With Quote
Old 05-13-2007, 11:54 AM   #4
Tech Adept
 
Join Date: May 2007
Location: The Hague, Holland
Posts: 205
Default

your welcome
Rick Thomson is offline   Reply With Quote
Old 05-13-2007, 01:39 PM   #5
Tech Regular
 
volracer's Avatar
 
Join Date: Jun 2004
Location: Madison, Alabama
Posts: 266
Send a message via ICQ to volracer
Default

For years I raced with a 27 AM Airtronics radio. I used verious brands of crystals, due to availability and need. I even used non-Airtronics recievers. I never had a problem. FM radios are different due a phase shift differences between manufacturers. AM technology has good spread between channels and rather tolerant; however there are alot of non-RC intereference. One example of mixing brands is that Futaba selles a module for 3PJ/K radios for 27 am use with small scale RTR RC vehicles. In this case you are using two different brand transmitters and recievers.
volracer is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
WTB:Radio/crystals Snipesr82 R/C Items: Wanted to Buy 2 04-13-2008 01:30 PM
Radio Crystals brettb76 Rookie Zone 6 11-26-2005 11:39 PM
FS -- Radio and Receivers Crystals (Futaba Radio) pdtech R/C Items: For Sale/Trade 0 11-24-2004 12:10 PM
WTB KO radio crystals 27 MHz FM F1Junkie R/C Items: Wanted to Buy 3 02-21-2004 09:42 PM
Futaba 3PJS FM/PCM radio w/7 sets of crystals and MATT FRANCIS radio bag Ron Meloni R/C Items: For Sale/Trade 1 01-08-2003 04:43 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 10:14 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net