RC Radios, Transmitters, Receivers, Servos, gyros Discussion all about rc radios, transmitters, receivers, servos, etc.

Vantec esc


Old 04-02-2010, 11:10 AM
Thread Starter
Join Date: Apr 2010
Location: North Port, FL
Posts: 46
My Gallery
My Models
My Feedback
Default Vantec esc

Has anyone used a Vantec RET411 esc with an AM radio with no problems? Mine is a Futaba ATTACK4 and supposedly they don't reccomend this uhit used with AM. Any help would be appreciated.
mainiac68 is offline  
Reply With Quote
Old 04-08-2010, 04:31 PM
Junior Member
Join Date: Aug 2008
Location: Grants Pass, OR
Posts: 1
My Gallery
My Models
My Feedback
Default RE: Vantec esc

Vantec here. For years we sold the RET series speed controls for all types of radios including AM units. In the early years there was only AM. They worked, some brands better than others. The problems are two fold. The motor brushes of the boat locomotion motor generate considerable Radio Frequency Interference noise. AM radios are MUCH more sensitive to this kind of interference than the FM units. PCM units even screen out the noise mathematically and it is interesting to note the commands are actually sent via a FM type modulation scheme. 2.4GHz is mostly above the noise, but has other issues.

The old AM radio radio can be made to work successfully if all the instructions are followed. RFI supression, capacitors, full antennae, wire routing, etc. As FM radios became more popular we noticed fewer and fewer trouble calls. In Futaba the older AM radios used a different centering 1.3ms than the FM at 1.52 ms and our RET's adjustment pot covered that range. However different connectors were required, this is the second aspect. Today few customers specify the old AM "G" connector instead of the now common "J" or JR style connector. We no longer stock the "G" connectors.

If the AM receiver has "J" connectors or an adapter is fabricated the RET series will work. Just be prepared to (Gulp!) follow the instructions.

Postscript: Theoretically the NARROWBAND FM used for R/C should not be significantly better than AM. It is not the same as comparing AM broadcast radio with FM broadcast. However, because the FM designs are generally better the net improvement is positive.

daylux is offline  
Reply With Quote

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

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service