DCS Remote RF Freq? & ext antennas

I also am wondering the exact freq.

The airforce flies low and fast over my home several times a day and night. It is important that they are not interfered with and that thier own emissions are not killing my own attempts to signal the engines.

As it stands, it works on the phone cord quite a bit. Yet another reason to be hesitant about acquiring TMCC engines. I hope that someone can clarify this between the DCS and TMCC.

I apologize if I open a can of worms. Generally in my home I try for 3 gig and up if there is a device transmitting and listening somewhere. However until that day, everything is wired.

Any answers on that topic?

http://www.rayman4449.dynip.com/gardenrr_mods.htm

Down near the bottom of the page are tips for modifying the antennae.

http://www.rayman4449.dynip.co...Antenna_Modification

916.5 Mhz

Thank you very much.

Will this work for O Gauge interior MTH PS2 and 3 engines?

 If you mean running trains inside, then yes. Barry's book also covers a simple tiu mod for this.

Is "oogling" the same as "Googling"?

John,

Is "oogling" the same as "Googling"? 

No, "oogling" generally involves attractive women.  

The Remote communicates with the TIU using RF carriers in the 900 MHz band...  I don't recall the frequencies at the moment...

The TIU communicates with the engines using a spread spectrum modulation technique... It is not frequency hopping but rather what's known as direct random sequence modulation... The signal is spread across a 10 MHz bandwidth from 0.1 to 10.1 MHz... If you look at the track signal with a Spectrum Analyzer you don't see much; maybe a blob of energy centered at 5.1 MHz... [I have looked at the signal with a friend's hp Spectrum Analyzer and that's what was displayed...

Circuitry in the engine board despreads the track signal, recovers the packet commands and, voila, we can control our engines...

The spread spectrum modulation was necessary to combat the noisy RF environment of our third rail...  The pickup rollers are notorious generators of RF noise...

Sometimes I am amazed that we three rail model train people have access to such technology in a consumer product...

Avoids trademark, etc, issues., and is more generic.

SZ

Well, the term "Internet search" is more generic and more descriptive.

 Maybe another reason to go two rail??

Barry, I thought it was "ogling", not "oogling."  But oogling is more descriptive:

Robert,

Barry, I thought it was "ogling", not "oogling."  But oogling is more descriptive: 

I agree, ogling is the correct word. However, I think may have "oogled" an attractive woman once or twice in my life.  

Good for you Enginear-Joe, when faced with difficulty don't ever be afraid to re-invent the wheel.

HOSO, the wheel can be reinvented and improved.  For example:  Originally wheels were square, giving 4 bumps per revolution.  A brilliant reinventor improved the wheel by making it triangular--only 3 bumps per revolution.

?? not sure of your point. Two rail? external antennas?

I had to fix my antenna. I had too many dead spots in the basement. Now much better. I also will be running outside.

 As far as two rail, manufacturers are making it much easier. Well almost all are.

We were successful improving the signal. The procedure for spectrum analysis and implementation is defined in this book.

 Hmmm, Scott's new hat??

We were successful improving the signal. The procedure for spectrum analysis and implementation is defined in this book.

LOL!