|11-13-2004, 09:48 PM||#22|
Join Date: Oct 2004
Total Props: 0
I just noticed that there is a company that is making '1/2' channels for the 27 series... It has the same spacing as the 75series so they can squeeze another chip between each of the original 6 channels which will really help the BASHING!
|11-14-2004, 07:34 PM||#25|
RCC Supreme Contributor
I am: Brian Belanger
Join Date: Nov 2004
Location: Thornhill Ontario
Total Props: 1
A little something to think about when choosing an AM radio control unit in the 27MHz range:
The AM radios we use are right in the midst of the Citizen Band (CB) radio frequency set, which uses Am and SSB modes for transmitting. A CB radio puts out 4 watts AM, LEGALLY! More powerful than your AM transmitter and can VERY easily interfere with the receiver on your car. In fact, channel 6 on your AM transmitter happens to be channel 22 on your CB radio. The rest are in between CB channel designations.
Theres a few problems here, some more reliavent than others.
Many people run very HOT and ILLEGAL setups on their CB radios - like 50 + watts on am and 250+ on SSB!
CB radios are fameous for 'splatter', which is a messy transmission that bleeds over several channels either direction. Worsens with more power!
So-called 'inbetween' channels that are used by several operators to get away from the clutter of signals on the CB radio are actually the frequencies that you use for your cars. Several CB operators have modifyed and technically illegal setups to accomplish these 'inbetween' channel usage.
Highway 401 is only a few kilometres from Bayview BMX - interference is likely, especially with truckers going back and forth. And for those of you in doubt, CB radio is alive and well in the trucking industry, and is in fulltime use on our beloved highway 401 every day of the week.
Below are a list of the CB channels and frequencys with the RC channels and frequencys integrated. Check it out:
27.225=CB22 - ALSO=RC6
Notice that the CB channel number designations are out of order, as shown here:
I'm not sure why they designated them like that, or why theres gaps in the band that are used for RC transmitters.
This, along with all the other problems that AM radios for RC cars seem to have is more than enough reason for me to not use one on my gas powered RC car, especially given that a runaway can be expensive and dangerous!
To answer the original post, I'm synthesized in the 75MHz range.
|11-18-2004, 09:26 PM||#28|
RCC Junior Contributor
Join Date: Jun 2004
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