Original: Radio Comment Translation and Introduction
Recently, the radio market has changed its previous silence and seems lively. First, the Eaton Elite Satellit radio was launched, and then the Desheng PL320 was launched. Currently, the Hanrongda 787 and Desheng S2200 are currently doing their final improvements and ready to go. In several original articles and videos about PL320 and Hanrongda 787 I have published, I have paid special attention to everyone's comments and seen a lot of feedback like this: "Why are there no aviation band?", "No aviation band, don't buy it", "For me, such a small radio does not require short waves or medium waves, but I hope there is an aviation band"... After reading these comments, a sentence suddenly popped up in my head: The radio is rolled in the air band, and it is rolled in the air band. Today I will talk about radio around this sentence.
Eaton Elite Satellit Radio
1. Radio Inverse
In the past few years, all walks of life have been inverse, and the degree is becoming more and more intense. You can read online reports that all the doctoral and master's degree from Tsinghua University and Peking University have been taught in middle schools. There are many programmers who "hidden achievements and fame" among the riders of . A 5-year-old cute kid can skillfully solve calculus problems, and even a kindergarten child can get full marks when doing English listening questions in the college entrance examination. It can be said that this kind of involuntary is scaled and systematic, spanning all ages vertically. No one, no industry can escape it, and the radio field is no exception.
Desheng S2000 radio
In the early years, when radio manufacturers launched new products, what highlights did they mainly promote? Digital tuning, full-band, high sensitivity, civil secondary frequency conversion, green energy saving, hand-crank power generation, disaster prevention and emergency response, massive storage, beautiful sound quality, beautiful design, DSP chip, card playback, Bluetooth function, etc., these gimmicks have been hyped countless times by various manufacturers, and have become the last one yesterday.
of course also has a synchronous detection function, because the threshold of this technology is slightly higher, and many small factories cannot do it and cannot afford it, so they only stir up the cold rice between several large factories. Even if the current DSP chip can realize the synchronous detection function, the actual effect is not ideal, and it is incomparable to the synchronous detection function built by traditional multiple components. Even traditional manufacturers are cautious on this issue and dare not boast about how excellent their radio synchronous detection function is, so the intensity of the inverter is still relatively low.
Think about it, the radio is so big and has so many functions. I have been working around it for decades and it seems that all the highlights that should be explored have been dug up. Nowadays, it is too difficult for manufacturers to find a new direction to break through, or to find a new track. If you still make a frigid rice, on the one hand, the product is not novel, not outstanding, and has no market attractiveness; on the other hand, it will be criticized by users for being weak in innovation, conservative, and self-satisfied.
2. Intra-coiling into the aviation band
However, Hanrongda, the new manufacturer, seems to have found a new way to intra-coiling, that is, the aviation band. In the past, the aviation band was synonymous with high quality. Only a few high-end and mid-range products among major brands had this function, such as: Sony ICF-2010, Desheng S2000, Desheng PL660, PL680, Eaton Satellit, Executive series, etc. Shanjin Company only equipped with the aviation band function on the ATS-909X2 radio launched in 2021.
shanjin 909X2 radio
Hanrongda's amazingness is that it has made the aviation band radio to civilian prices and even bargains. The unattainable aviation bands in the past actually appeared on radios of 200 to 300 yuan or even more than 100 yuan. Hanrongda 737, 747, 767 and other radios have popularized the aviation bands. More and more players are beginning to pay attention to this new band outside the traditional radio band, and want to satisfy their curiosity in the aviation band.
Hanrongda 737 radio
Now the pressure of inverting has returned to the traditional major manufacturers. Desheng PL330 can be said to be a full-featured small portable aircraft, but the aviation band is missing; H501 has also been criticized by everyone for the lack of aviation band; PL320 radio was just released not long ago, and many players expressed deep regret after seeing that it was not equipped with aviation bands. Desheng's S2200 is also working hard to develop aviation bands.
3. Is the aviation band fun?
The question is is the aviation band really fun?
Judging from my own listening experience, the aviation band is not very meaningful either. It is not a 24-hour non-stop broadcast, it only has calls when the plane takes off and lands. If you live near a large airport in a first-tier city and the plane takes off and lands frequently, the chances and frequency of calls you hear are quite high. If I live in a small border town like me, I sometimes have to listen for an hour or two before I can hear a few calls.
In addition to listening factors, the content of aviation band calls is also meaningless. Often, the flight number, weather, wind direction, wind speed, altitude, speed, which runway to enter and exit, etc. The signal is often mixed with a lot of back noise, or is intermittent. If you are an English learning enthusiast, you can practice listening, feel and experience English with various dialects and flavors.
Because of the above two factors, I was a little interested in it during the days when I first came into contact with the aviation band, and over time I felt bored. Now, I hardly listen to the aviation band much except for radio performance testing or meeting readers’ requirements. Of course, these are all my personal preferences and experiences. I cannot understand the fun of the aviation band, just as others cannot understand why I hold a radio all day long.
4. How to choose an aviation band radio?
Deshibo 1860 radio
Since the aviation band is so popular now, what are the precautions when choosing an aviation band radio? Or how can I find an aviation band radio that suits me?
I think there are three main points:
first, it must have squelch function. As I mentioned in the previous article, the aviation band needs to be listened to. As the name suggests, keep listening, it will not talk continuously. There is always a rustling band noise floor noise between calls. When the plane talks to tower , the rustling noise floor noise will recede. The noise squelching function can hide these continuous noise floors and keep the radio silent. Only when the received signal reaches the squelching threshold set by the user themselves, the noise squelching function will be temporarily invalid and the call sound will be transmitted. Imagine that if there is no squelching function, your ears will always be tortured by rustling noise; with the squelching function, it will block the noise, let go of voice, and even stop weak signals with poor intelligibility and let go of strong signals. Doesn't it sound very comfortable?
Among the radios I have used, machines with squelching functions are: ① Eaton Elite Satellit, the squelching level is divided into 20 levels; ② Hanrongda 747, the squelching level is divided into 9 levels; ③ Shanjin 909X2, the squelching level is divided into 12 levels; ④ Deshibo RD1780, which is also 9 squelching level classification; ⑤ Deshibo 1860, which has 5 squelching levels; ⑥ Deshen S2000, there is no clear squelching level division, and the squelching level is adjusted through a knob. However, radios such as Desheng PL660, PL680, Hanrongda 737 do not have noise squelching functions.
Second, it must have automatic search function. The air frequency used by airports in different places is different. If you want to know the exact frequency of your local airport, the usual practice is to search online, and some aviation enthusiasts or radio enthusiasts will share this information. But it has a disadvantage: the information included may be incorrect and inaccurate. Maybe the airport used to use the frequency of 130 megabytes, but it has been changed recently, and the information online has not been updated and maintained in real time. If you listen at 130 megabytes, you will definitely hear loneliness.
At this time, if your radio aviation band has an automatic search function, it will be easy to do, let it search back and forth in this aviation band repeatedly and continuously.Although there are intervals between airline calls, you can't hold back the continuous sweeps of the frequency without listening. It won't take long to capture the new frequency of the aviation band that is being called. Isn't this a new world discovered? If the automatic search function is missing and the user searches manually alone, I would bet that 80% of users do not have this patience and cannot afford this time.
Deshibo RD1780 radio
Among the radios I have used, the models that can automatically search for the aviation band are: Eaton Elite Satellit, Hanrongda 737, 747, 767, Shanjin 909X2, Deshibo RD1780, 1860. In contrast, Desheng PL660, PL680, and S2000 do not have the automatic search frequency function. From now on, Desheng Radio's aviation band function is indeed a bit out of date. Let's see if the upcoming S2200 can make a comeback!
Third, multi-channel automatic monitoring and scanning functions. This is an advanced feature, and among the radios I have used, only the Shanjin ATS-909X2 radio is equipped. The user stores multiple aeronautical frequencies into the radio and then activates the function. The machine will automatically scan these frequencies repeatedly. Play which frequency has a call, and automatically skip which frequency does not have a call, ensuring that the user will not miss any call frequency. The Shanjin 909X2 can monitor 9 existing aviation frequencies at the same time, which is highly intelligent and very convenient to use. It should be said that this is a high-level function full of sincerity.
Regarding aviation band radio, I want to say all of you here at the moment. Readers and friends will get what you need. I hope it will be helpful to everyone.
Friends, what aviation band radios have you used? How do you feel? Please leave a message and comment.
★ Personal abilities are limited, and there must be any mistakes in the article. Please criticize and correct me. The above content is mainly based on the evaluation prototype in my hand. It is a case-by-case and is not universal. Please combine your actual needs and enter the machine rationally and not blindly follow the trend.
