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Table of Contents
1. The Berg-5dsp* receiver is a 5 channel receiver but where is channel 5?The Berg –5dsp* receiver chose not to have the transmitters channel 5 output on this receiver. Since this receiver would be the choice for use in small aircraft that do not have retracts and most all transmitters ever designed use channel 5 for retracts, we decided to eliminate it. Instead we chose to have an output for channel 6 to use for split aileron, flaperons, flaps, etc… more small airplanes and gliders would utilize those functions so the choice was made. Coming out after the first of the year will be the introduction of the Berg-5dsp*2. It will feature a 5th output that is programmable for either channel 5 or 6.
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2. I have a Flash 5 transmitter. Will I be able to use my 5th channel or dual ailerons?No. The Berg-5dsp* receiver does not output the transmitters 5TH channel and since the Flash 5 does not have a channel 6 to utilize the receivers channel 6 output. Back to Top
3. Is the Berg-5dsp* receiver a limited range receiver?No! The Berg-5dsp* is a full range receiver that just happens to be very small. It works as good or better than any receiver available on the market today! Back to Top
4. Can I put the Berg-5dsp* receiver into a big airplane?Sure, you can put the Berg-5dps* receiver in the biggest airplane you want to. It is a full range receiver and will operate at a greater distance away than you can see to control it. Back to Top
5. My Berg-5dsp* receiver is in small indoor flyer and the antenna is so long it hangs out of the back of the fuselage. What can I do about hiding it?Cut it off! Just keep two things in mind when doing so. What is the maximum distance you fly your model from yourself and when shortening your antenna you are reducing the overall range of the receiver so be reasonable. Since it is a full range receiver and you are not flying a small indoor flyer very far from yourself, you should be fine. Back to Top
6. I bought my Berg-5dsp* receiver originally to use with my Futaba transmitter. I recently purchased a new JR radio and want to use it with my receiver. Can I?The Berg-5dsp* receiver employs a tiny aerospace grade slide switch on the pc board that allows you to quickly change the modulation shift of the receiver from negative to positive. The location of this switch is shown clearly on the instruction sheet that comes with the receiver new. Back to Top
7. My receiver works fine on the ground but as soon as I get it in the air it glitches all servos and the speed controller shuts off and I crash. I have tried everything but can’t get the Rx to quit glitching.You are probably using the speed controller BEC to power the receiver and servos. Check the current output of the BEC circuit. Many of the small ESCs BEC circuits only put out 1 amp of current. Even if you are using small servos, this is not enough power. Any servo working hard or stalled can draw more than 1 amp of current each! Digital servos draw 3 times the power. The way to find out positively if the BEC is the problem, make up a small 4 cell battery pack to power the receiver and servos. Disconnect the red wire on the plug that plugs into the receiver throttle channel. Now check the balance point of the model and go fly it again. If everything is ok now, the BEC was the problem. What happens is with no load on the servos the BEC can deliver the voltage the radio needs to function. But when the servos are loaded while making control movements the current load on the BEC goes up. When the current needed exceeds the amount the BEC can supply, the voltage drops until the receiver quits working and the speed controller quits. When everything quits working the current load goes down, the voltage comes back up and everything starts working again except for the ESC which needs to be reinitialized again with the throttle stick. Unless the BEC can put out a minimum of 3 amps, they can be plane killers.
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8. Everything works fine until I throttle up and the motor is running, then the airplane is uncontrollable.If your model is a fuel type engine model, there are two common causes. The receiver is sensitive to vibration or there is a metal to metal connection making noise that the receiver is picking up. Vibration could be getting to a damaged receiver crystal or a filter in the receiver. Try another crystal if possible. If this doesn’t fix the problem you need to send the receiver in for a checkup. Metal to metal could be a metal clevis attached to a metal throttle arm, if so change the clevis to a nylon type. Check all bolts and nuts on the engine and make sure the engine or muffler is not rubbing on anything. Electric airplanes are more likely to see this problem. It means that the receiver is picking up the electrical field or noise that something in the motor system. First look at the overall installation of everything. Keep all of the radio components and wiring out of the motor compartment, the two don’t mix. Make the wires from the motor to the speed controller as short as possible. Wires from the speed controller to the battery pack as short as possible. Use only high quality gold plated connectors in the motor power system. Cheap tin or solder plated connectors will build up resistance in the connection and can destroy speed controllers. Use filter capacitors on brushed motors. Check for arcing brushes, replace if necessary.
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9. I just finished my airplane and am getting ready to fly it for the first time. What can I do to make sure that everything is set up correctly and that I don’t have some potential problems getting ready to bite me?There is plenty you can do to check out your airplane before its maiden flight. Set dual rates for normal flying in low rate, dead stick or wild maneuvers on high. Check maximum throw with the TX by putting both sticks in every corner one by one and watch the servos that they don’t hang, stall, bind against anything. You should have already preformed a range check of your receiver before you installed it in the model placing it on a non-metallic surface, using a battery pack and a couple of servos. With one section of antenna on the TX extended, back away from the Rx while moving one of the servos back and forth continually until you loose control (no movement). Don’t worry about the noise that might show up in the servos, you are watching for loss of control. At this point you should be able to regain control by taking a few steps towards the receiver. If you do, take note of this distance. Now this is the maximum range you can ever expect to get from your receiver transmitter combination without anything else coming into play with the equation. When you install the receiver and everything into the model you can expect for this ground range to diminish somewhat. How much is going to be determined by the installation of everything around the receiver. Wires and how they are routed, other equipments location physically, antenna wire routing, simply everything in the radio compartment will have an effect on receiver performance. Since you know what the receiver is capable of before installation, compared to what you get after installation will tell you if you have a problem or not with radio installation. Finally have someone hold on to aircraft and repeat the ground range test. When you are at the fringe of the range, but still have solid control of everything, start the engine or motor. You might loose a few more feet with electric power but no more than that. If you loose control or everything goes wild, you have a problem to find. You should remain in complete control of the model. If so, it’s time for that first flight!
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10. My receiver has been working great until it came to a sudden stop (crash). Now it doesn’t do anything, it’s dead. Is it repairable or is it worth repairing?Is it worth repairing? Maybe. It depends on what is wrong with it, what got damaged in the sudden stop. Sometimes it can be as simple as a broken crystal or it could be a major problem that will be very time consuming just to diagnose the problem. Our repair facility charges $35.00 per hour labor rate. We don’t think you would want to pay 35.00 – 40.00 to have a receiver repaired when you only paid around 49.99 for it new. Once a receiver is hooked up to an o’scope it is a quick and simple act to diagnose if this is going to be a simple problem to fix or terminal. If it’s a simple one we will go ahead and fix it and charge accordingly. If it is the other kind we will offer to exchange (we keep your receiver and send you a new one) the receiver for a new one for $30.00 plus return shipping (we use your crystal if it’s ok. New crystal add $8.00). Back to Top
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