If you are into RC for a while, you will get confused between DSMX and DSM2. It happens to almost everyone in the RC world.
But you need not worry. We are here to help you make a decision.
So, DSMX vs DSM2, which one is better?
Spektrum Technologies manufacture both DSMX and DSM2. They feature the same wideband DSSS technology. They share the 2.4GHz wireless bandwidth. However, the DSMX has the more advanced FHSS algorithm. It can hop between 23 different frequency bands protecting the signal, making DSMX better than DSM2.
This is just scratching the surface. You need not decide on just that. Spare us a few minutes to know in detail and make a decision.
DSMX vs DSM2: Quick Comparison
Knowing the key differences is a must for choosing the proper receiver for your device. Hence, we have made a quick comparison table for your ease.
|Noise & Interference||Can suffer from interferences of other RC devices||Negligible due to dynamic frequency|
|Signal Strength||Strong||Very Strong|
You might be thinking that this is not enough for a decision. Don’t worry. We have made a detailed comparison just for that.
DSMX vs DSM2: Detailed Comparison
The whole RC world was taken by storm when the 2.4 GHz technology was released. It was a great breakthrough in the world of Remote Controlled vehicles.
The forefront of this revolution was Spektrum Technologies. They introduced the DSM2 Wireless receiver to the mass and it was an instant hit nevertheless.
The DSMX was introduced a few years later after the DSM2 launch. Both of them use 2.4 GHz wireless technology. Even they use the same Wideband DSSS Technology.
Now, you might be thinking these two things are the same. But, hold on, there are some differences you need to know to decide.
Number of Channels
One of the major differences between the two is the number of channels. The DSM2 has 2 channels whereas the DSMX features 23.
The higher number of channels in the DSMX enables it to jump between them.
On the other side, the 2 channels of DSM2 do not allow switching between channels.
Winner: DSMX wins the battle of the channels with 23 channels.
Perhaps, this is the most noticeable difference between the two. The DSMX and DSM2 both use Wideband DSSS. But the DSMX has the better version.
The Dynamic Frequency mode of DSMX allows it to seamlessly switch among 23 channels. This dynamic switch protects it from interference.
But the DSMX not only hops among channels, its FHSS technology coordinates frequency shifts. It also has an agile wideband signal.
With these advanced technologies, you will be able to fly 2 or 3-blade prop copters easily. If you are interested, you can have a look at these prop copters;
Noise & Interference
The worst enemy of a receiver-transmitter system is noise and interference. It can severely affect the flying experience and cause problems.
The DSMX uses an advanced Global Unique Identifier (GUID) Technology for shifting frequency.
This helps the receiver to shift frequencies in a unique pattern all throughout 23 channels.
This unique frequency shift gives the DSMX extra protection against noise and Interference. It also enables the receiver to have a faster reconnection time.
On the other hand, the DSM2 has a static 2-channel frequency mode. Unlike the DSMX, it cannot hop between frequencies.
Hence, if there are other 2.4GHz devices around, they might face some interferences. Moreover, the interference causes noise in the transmission making it slower.
There is a good chance that you will lose a lot of packets or data. Even more so when there is interference on the channel.
Both of the receivers use wideband DSSS technology. The coding gain of this technology makes the signal very strong.
This gives the DSMX and DSM2 an advantage over the ordinary 2.4GHz wireless receivers.
The wideband allows these receivers to transmit 3 times stronger signals. Adding to that, they can do it using the same amount of power.
For example, you can compare narrowband with streams and wideband with rivers. It is very difficult to stop the flow of a river. Hence, the wideband is far superior enabling a better experience.
To get a better overview you can try using the DSMX or DSM2 with the DX6E or DX6.
However, there is a catch. Due to the limited channel of DSM2, the signal strength is relatively weaker than the DSMX. The dynamic frequency gives an advantage to the DSMX.
Pricewise there is a noticeable gap between the two. The DSMX is more feature-packed and hence the price is higher than DSM2.
A single unit of DSM2 will cost you around 50-60$. On the other hand, a unit of DSMX will cost you between 80 and 90$.
However, the higher price of DSMX is justified by the dynamic frequency and superior signal strength. The advantage is worth the extra money.
Which One to Pick?
DSMX is the clear winner between the two. Though the DSMX and DSM2 have a few differences, they are crucial.
The DSM2 is limited to 2 channels only. Other people could be using the same channel causing interference.
On the other hand, the DSMX has a dynamic 23-channel frequency range. It constantly switches between the channels to avoid interference. Moreover, the chances of people using the same channel are low.
The reception time for DSM2 is higher than that of DSMX. Also, the DSMX is well protected against external threats.
Therefore, the DSMX is the winner of today’s debate.
Are DSMX and DSM2 Compatible?
Yes, they are compatible. You can use a DSM2 transmitter with DSMX receivers. Also, you can use a DSMX transmitter with DSM2 receivers. DSMX is backward compatible with DSM2. Similarly, DSM2 is forward compatible with the DSMX.
Is Spektrum Better Than Frsky?
Unfortunately, Spektrum is not better than FrSky. FrSky radios have far more reliable radio links than Spektrum radios. They also have more robust links and build than Spektrum radios. The antenna placement is better and there is less noise and interference.
Can I Use Dsmx Add-Ons on DSM2?
Yes, you can use them. DSMX and DSM2 are compatible with each other. But it is not needed to switch add-ons between the two. In most cases, you will fly in an open space. Very rarely, you will go to a crowded place with 2.4 GHz signals. Only then you will need DSMX add-ons.
That’s all to know about DSMX vs DSM2. DSMX is better than DSM2 head-on. After all, it is the later version of the two.
Moreover, it features cutting-edge dynamic frequency technology. Do give us your opinions in the comment section.