Question about Scientific Toys Eztec Radio Control Full Function Wave Blaster - 27.145 MHZ

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My RC car works to six feet and then nothing. The antenna is connected and the transmitter is good.

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My RC control only works within four feet of my boat. What is wrong ?


Check the Transmitter Antenna and battery. low battery means short range and the antenna could be broken. Have it checked by a radio modeller shop, but first replace new batteries and inspect the antenna. I don't know what brand it is, so I don't know what antenna you have, an extendable antenna or a short stub.

Mar 08, 2015 | RC Toys

Tip

How to build a simple AM transmitter.


Take a old radio apart. In my case a portable GE Am/FM type that also runs off 4 "C batteries. Attach output of CD player or SPKR out to Tuner C1 connection on Old Am. Hook other side to Ground or Metal IF canisters. Attach a small 3 foot wire to C2 side of Tuner. Mine does better in the upper band on 1650 Khz. Tune your Am transmitter to match another radio say around 1650KHZ. The Receiver will be at 1650 the Transmitter may be slighly less on the dial at say 1300-1400KHZ. Just because of the IF harmonic is 455KHZ. It my go into 1/2 harmonic or so. It will sound your audio "LOUD" into transmitter 10-30 feet away. Turn down CD player volume until it is clear(not distorted). Its very sensitive in the section of INPUT it doesn't take much to drive the Transmitter. Keep experimenting until these connections are perfected. Once you get it to work, solder it in place. Play all your favorite songs right on your AM receiver. I get an easy 100 feet range with 3 foot Antenna.Have fun. Also On C1 short it across to that screw on C1 side To AM coil wire with the audio wire SPKR out. It seems to be clear,loud and steady. Drive a ground Rod into earth 6 feet attach to metal IF canisters(Grounding) If you get it to work---put it inside a square box and drill holes and add Volume knobs for audio and Gain knobs. Build a RF pass filter at Antenna to better signal by shunting antenna to ground with a coil(40 turns) 100pf capacitor plus a 1k resistor in series with capacitor,where you attach Antenna Screw and Ground screw in back of your box. Antenna can be mounted outside on a 10 foot pole with 75 ohm coax feeding to transmitter. Build your antenna with 8ft. aluminium pole(tape it off with black tape). It should get decent gain.

on May 09, 2011 | Radio Communications

2 Answers

Why is that not working?


The antenna in the helicopter might be broken

May 08, 2014 | Electric 3CH Mini Sport RTF RC Helicopter...

1 Answer

Why wont my RC helicopter respond to the controller


The Helicopter channel/frequency may need changing to match the channel/frequency on the transmitter.
OR change the transmitter channel/frequency to suit the helicopter.

Feb 06, 2013 | Toys

1 Answer

My bose remote for my lifestyle48 only works from really close up? I was lead to believe they work from any room in the house... what's wrong?


The Bose Lifestyle 48 remote is RF device and is rated to work up to 65 feet (20m) away from the system (brick, steel, etc. construction will reduce this distance significantly however). The remote is discussed in two places of the installation manual.

The first speaks to the receiving antenna on page 16 in the form of a "Note" below section 4G. It states that both of the power cords (one between the VS2 and Media Center the second that supplies power to the VS2) need to be fully extended. Wrapping up excess cable will reduce the receiving range of the system to the remote transmitter.

The second location is at the bottom of page 29. Here, it offers the solution to poor remote performance to be an optional "remote extender" that looks like it connects to the rear of the system (RC connector?). The extender is available for an additional cost and you must contact Bose to obtain it. I can't find an image of it and Bose doesn't produce any information about it when searching their website.

I hope this helps and good luck! Please rat emy reply - thanks.

Apr 21, 2011 | Bose RC-48S Remote

2 Answers

I need directions for Disney's Tokyo Drift Mater and Lightning Mcqueen RC cars. They came with a small wire that connected the car to the remote. I removed it when I first opened the boxes. Now, three days...


I think that the wire is for establishing communication between Mater and the remote. My son got one this year for Christmas and the batteries wore out quickly. I replaced the batteries in both, turned both off, hooked up the wire, then turned both on. When I disconnected the wire, it works again.

Dec 27, 2010 | Mattel Disney Pixar Cars Remote Control...

2 Answers

I cant get the remote to connect to the revo


Check to make sure batteries are good in transmitter and receiver pack in truck. Also check to make sure antenna is not damaged, and check crystals in transmitter and receiver.

Nov 19, 2009 | Traxxas Rc Revo Nitro Monster Truck

2 Answers

Why wont my Revo R.C. car respond to its remote?


Make sure batteries are good in the transmitter and receiver pack. Check antenna for damage.

Aug 01, 2009 | Traxxas Rc Revo Nitro Monster Truck

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