When I say to an amateur radio show that I like portable operation or I like to operate QRP, I always look at these deer headlights and say, "Life is too short for QRP work with! " Then I find myself justifying my existence and explaining why I like QRP.
Okay, let me start with the basics who do not know Amateur Radio or Ham Radio. QRP is part of the Q codes. The Q codes are a collection of three-letter codes that begin with all Qs, similarly to the 10 other code codes, such as 10-4. Q code reserved for amateurs depends on QRA ~ QUZ. Anyway, I will not describe the Q codes in detail in this article for those who are thirsty for details, just look for Q codes and you can read a lot of things.
In the amateur radio to track QRP, strict terms mean "performance reduction" or "performance reduction", but in normal conversations it usually means that the transmitter has a very low performance, usually less than 5 watts . With this in mind, the average HF Ham transmitter is approx. 100 watts, and many of them add a linear amplifier to the radio station, which often pulls the output to more than 1,000 watts. So what does all this mean? Well, let me use the analogy of bulbs. A 100 watt incandescent lamp will be much brighter than a 5 watt bulb so we would assume that the 100 watt bulb is easier to see at a further distance. This is true for a radio signal. So why do you ask, I want to use 5 watts? The reasons for using the QRP station may differ from the following, but I will try to give you some insight into the ratione.
First, I feel like a good radio station, amateur or other antenna. Antenna is the most important element for a transmitter and receiver. Without antenna, no matter how much power it has, its signal is greatly impeded. So when you run QRP, you have to be careful about designing the antenna system that we are proud of. In fact, a properly designed and assembled antenna effectively amplifies the signal many times, so it becomes audible, as if it uses more than 5 watts. You still wondering what? Well, I think I feel good that I know I can build a very effective antenna.
The second reason, like QRP, is to greatly facilitate portable operation. When I say it's portable, you're operating from a radio-operated trading force, in other words, operating a radio station on the batteries. For example, the family loves the campsite, I prefer a five-star hotel but everyone is happy to go, only if I can get the radio! Radio camps are a lot of fun after the night when kids are thrown into sleeping bags. At any time you can get away from the electrical noise of the city, the radio reception gets significantly improved, which means that I can hear the very weak signals. So, to get back to the track if I run a 100 watt transmitter, I probably need a 110 volt powerhouse (in the middle of the Algonquin Park). Yes, of course, I could take my wife and child with a couple of 12-volt car batteries weighing over 50 pounds each. Even after a few hours of entertainment, they can enjoy 100 watts. Now, we are going back to QRP when we run an electronically efficient radio with only 2, 3 or 4 watts (eg Elecraft KX1 or TenTec R4030). I only have to bring some batteries around 10 AA cells. This layout stays simple for 3-4 days before I have to worry about filling them. Or, if I was very curious, I would buy a Gel Cell battery, which could take up to two weeks. I suppose the morality of this story can be summarized as follows: Mom and kids love to go, Dad is not so excited! Dad thinks I can yell, as far as I can work the QRP radio on the campsite, OK! Mom and kids are happy, Dad happy!
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