<p>1&gt; The &quot;4 in 1 chip&quot; <em>does handle more protocols</em> than the CC2500. It has the CC2500, nRF24L01, A7105 and CYR all integrated in one package and allows you to bind with and use <em>Flysky, Spektrum, HUBSAN, DSM2, DEVO, J6PRO, ESKY, HISKY, KN, V2X2 and ASSAN</em> receivers which you won't be able to do with just the CC2500.</p>
<p>2&gt; Spektrum is basically a brand of high end radios. (At least they are high end for me)</p>

CC BY-SA 4.0
2021-03-06T07:51:48.643Z
PS: I have the TX12. It feels adequate. It is my second radio, was using a FS-i6 before. TX12 doesn't support Flysky, but it just felt like a steal. So I got a FrSky receiver for real cheap. I am happy with what I have. You would probably not need to use most of these protocols. FrSky based receivers are omnipresent nowadays. Most BNF/RTF crafts come with FrSky RX options nowadays, and you can always be careful while making stuff. Of course, if you believe that you may *end up flying a lot of drones, you might want to get a better radio with a 4 in 1 module*
Kritik Agrawal
CC BY-SA 4.0
2021-03-05T18:19:13.067Z
2021-03-06T07:51:38.603Z
2021-03-06T07:51:38.603Z
Kritik Agrawal
<p>Searching on the radio controllers radiomaster TX16s and TX12,</p>
<p><a href="https://i.sstatic.net/4ZBwH.jpg" rel="noreferrer"><img src="https://i.sstatic.net/4ZBwH.jpg" alt="enter image description here" /></a></p>
<p>I found that video <a href="https://www.youtube.com/watch?v=ekrG5meNZOU%3F&amp;t=5m47s" rel="noreferrer">https://www.youtube.com/watch?v=ekrG5meNZOU%3F&amp;t=5m47s</a></p>
<p>that warns me that Tx16s has an internal stm32 4-in-1 protocols chip, whereas Tx12 has an stm32 c2500 &quot;only&quot;, according to this opensource project website : <a href="https://downloads.multi-module.org/" rel="noreferrer">https://downloads.multi-module.org/</a></p>
<ol>
<li>What are the cons with the c2500 chip ? Does it handle less protocols ? Does it provide less power to the 2.4GHz antenna and thus reduces the range for sending commands?</li>
<li>What is spectrum protocol ? A brand of drones ? I often hear about these recceivers for not being compatible with universal radio transmitters</li>
</ol>

<transmitter><antenna><long-range-drone><multiprotocol-module><transmitter-protocol>
multi-protocol transmitters -- difference between stm32 4-in-1 and stm32 c2500 only ? [tx16s Vs. tx12]
user1598
# multi-protocol transmitters -- difference between stm32 4-in-1 and stm32 c2500 only ? [tx16s Vs. tx12]

(Asked by: username_0 on 2021-02-24)

Searching on the radio controllers radiomaster TX16s and TX12,

[![enter image description here](https://i.sstatic.net/4ZBwH.jpg)](https://i.sstatic.net/4ZBwH.jpg)

I found that video <https://www.youtube.com/watch?v=ekrG5meNZOU%3F&t=5m47s>

that warns me that Tx16s has an internal stm32 4-in-1 protocols chip, whereas Tx12 has an stm32 c2500 "only", according to this opensource project website : <https://downloads.multi-module.org/>

1. What are the cons with the c2500 chip ? Does it handle less protocols ? Does it provide less power to the 2.4GHz antenna and thus reduces the range for sending commands?
2. What is spectrum protocol ? A brand of drones ? I often hear about these recceivers for not being compatible with universal radio transmitters

**Tags:** transmitter, antenna, long-range-drone, multiprotocol-module, transmitter-protocol

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## 1 answers

### Answer by username_1 on 2021-03-05. Score: 3

1> The "4 in 1 chip" *does handle more protocols* than the CC2500. It has the CC2500, nRF24L01, A7105 and CYR all integrated in one package and allows you to bind with and use *Flysky, Spektrum, HUBSAN, DSM2, DEVO, J6PRO, ESKY, HISKY, KN, V2X2 and ASSAN* receivers which you won't be able to do with just the CC2500.

2> Spektrum is basically a brand of high end radios. (At least they are high end for me)

> **Comments:**
> **username_1**: PS: I have the TX12. It feels adequate. It is my second radio, was using a FS-i6 before. TX12 doesn't support Flysky, but it just felt like a steal. So I got a FrSky receiver for real cheap. I am happy with what I have. You would probably not need to use most of these protocols. FrSky based receivers are omnipresent nowadays. Most BNF/RTF crafts come with FrSky RX options nowadays, and you can always be careful while making stuff. Of course, if you believe that you may *end up flying a lot of drones, you might want to get a better radio with a 4 in 1 module*  

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