Wireless system for electronic musical instruments from the company Ammoon - wires are no longer needed?

I think many musicians would agree that the lackwires from an electronic musical instrument greatly facilitates life and adds freedom to the scene. This is true, but the cost of a branded radio system is very high. Let's see if it’s possible to make a normal radio system at Ammoon?

So the radio comes in neat packaging.

Specifications on back side

Brand: ammoon
Operating frequency: VHF 200-271 MHz
Transmission range: about 50 m (without obstacles)
Frequency range: 60 Hz-18 kHz
Operating Temperature: -10 ℃ -50 ℃
Power supply: 2 * AA batteries for each (not included)
Size of goods: 8.5 cm (16 cm with antenna) * 3.5 * 2.5 cm
Product Weight: 35 g (one transmitter without batteries)
Open the box and evaluate the equipment

- transmitter (green LED)
- receiver (red LED)
- 2 antennas 7.5cm long
- adapter 6.35 mm (jack) to 3.5 mm (mini-jack)
- audio cable (about 1 m long)

We do not need an adapter for a minijack and a cable to connect an electric guitar, but the fact that they are included is a nice bonus.
Let's now look at the radio system itself.

The dimensions of the transmitters are as follows: length 8.5 cm, width 3.5 cm, height 2.5 cm. The length of the antenna is 7.5 cm.
The transmitter and receiver operate on 2 AA batteries, i.e. Radio system requires 4 AA batteries. Batteries also fit.
Radio Connector Normal Mono Jack

At the top of the connector for tightening the antenna and the slider on / off system. When turned on, a red diode on the receiver lights up, and a green one on the transmitter.

Fasten the antenna

In the assembled state, the system is 16 cm in length, which is not so little.
What is under the plastic case of the system?
The receiver is on the left of the photo and the transmitter is on the right.

Get paid and turn them around



But now let's see how the system looks on the instrument.


Now connect the transmitter to the guitar

Let's talk about the main point - about the quality of the system.
It turns on very quickly, additional noiseIt does not add if the batteries are not dead. But if the batteries begin to sit down on at least one transmitter or receiver, there is a fairly strong noise, which is heard that it is time to replace the batteries. When comparing the quality of sound in an electric guitar connected via cord and radio system, in terms of frequency characteristics, the sound was no different, but the overall volume on the clean sound of the guitar sat down noticeably (30% percent, maybe a little more) when using a radio. Overdrive also sank, but not so much. (After reviewing the video at the end of the review, it seemed to me that the radio system a little on the electric guitar ate the brightness of the sound due to the high frequencies, but when listening to it live there were no such sensations!).
The bass guitar sounded equally loud and good aswith the cord, and on the radio system - the sound has not changed at all. Perhaps the point is that the system does not crush the lower frequencies of the instrument, and perhaps because our bass player has an active bass and gives a stronger signal.
As for the range of work, the system withoutcomplaints worked at a 30 m range through thick walls and a metal door. The stated working distance is 50 m and it will surely pull it out, but at a distance of more than 30 m the sound delay will be noticeable not because the system itself gives feedback, but because the sound wave will take some (even a split second) time to go distance (in order to smooth the moment with a sound delay, on professional sound engineering control panels there is an adjustment of the signal speed parameter). Moreover, the guitar combo will hardly stand on the stage more than 5 meters away.
There is another point that must be considered -the system sticks out of the guitar by 16 cm! Yes, it deprives us of the need to use a cable, but it sticks out of the guitar and if you are an active musician and love movement on the stage, then there is a high probability that you can easily catch it on your leg and knock it out of the nest (talking about guitar players ). Moreover, given the weight of the guitar and the plastic case of the radio link, the probability of simply breaking the jack from its body will be high. The solution to the problem is to get hold of the jack cable (dad) - jack (mother) and attach the radio on the guitar strap so as not to knock it out.