433.92MHz Miniaturization Wireless Transmitter Module
TWS-DS
433.92
2012/03/02
Question 1: 
In my circuit if I use TWS-BS-3(Old version) it is working perfect but if he replace TWS-DS-3, it is not working properly. Please let me know how to solve this problem.
WENSHING Answer:
If you use TWS-BS3 initially, his receiver encoder code also needs to re-write for paring so that their product just can start to work. If your transmitter change from TWS-BS3 to TWS-DS3, the software also needs to change. Attachment is about Manchester Encoder way, kindly check page 5 to revise their encoder.
2012/03/02
Question 2: 
I have tested those modules you have sent us and they work very well. However I have just discovered that we cannot use a transmitter with that much power at 433.92MHz. The Max allowable is 25mW or 14dBm @ 433MHz. We have 2 options, switch to your TWS-DS-3 or can you lower the frequency on your TWS-HS-3 to under 868MHz?
WENSHING Answer:
For the law, please try to use TWS-DS3 and the output power will meet your law. If your application is need far distance, TWS-HS just can fit your need but please try to decrease output power so that it will meet your law.
2012/03/02
Question 3: 
Now I use TWS-DS3, the output is too high. How to solve it?
WENSHING Answer:
Put lower input voltage to TWS-DS so that their question can be solved.
2012/03/02
Question 4: 
What`s the difference on TWS-DS & TWS-BS?
WENSHING Answer:
TWS-DS key features are as below: 1. Lowest voltage can be low up to 1.5V. (TWS-BS needs 3V) 2. Output power is bigger and it can up to 16dBm. (TWS-BS is 15dbm.) 3. Current type has many selections.
2009/09/09
Question 5: 
In my circuit if I use TWS-BS-3(Old version) it is working perfect but if he replace TWS-DS-3,it is not working properly.Please let me know how to solve this problem.
WENSHING Answer:
If you use TWS-BS3 initially, his receiver encoder code also needs to re-write for paring so that their product just can start to work. If your transmitter change from TWS-BS3 to TWS-DS3, the software also needs to change. Attachment is about Manchester Encoder way, kindly check page 5 to revise their encoder.
2009/07/14
Question 6: 
I have tested those modules you have sent us and they work very well. However I have just discovered that we cannot use a transmitter with that much power at 433.92MHz. The Max allowable is 25mW or 14dBm @ 433MHz. We have 2 options, switch to your TWS-DS-3 or can you lower the frequency on your TWS-HS-3 to under 868MHz?
WENSHING Answer:
For the law, please try to use TWS-DS3 and the output power will meet your law. If your application is need far distance, TWS-HS just can fit your need but please try to decrease output power so that it will meet your law.
2009/07/14
Question 7: 
Now I use TWS-DS3, the output is too high. How to solve it?
WENSHING Answer:
Put lower input voltage to TWS-DS so that their question can be solved.
2009/07/14
Question 8: 
What`s the difference on TWS-DS & TWS-BS?
WENSHING Answer:
TWS-DS key features are as below: 1. Lowest voltage can be low up to 1.8V. (TWS-BS needs 3V) 2. Output power is bigger and it can up to 16dBm. (TWS-BS is 8dbm.) 3. Current type has many selections.
2008/11/19
Question 9: 
I have just discovered that we cannot use a transmitter with that much power at 433.92MHz. The Max allowable is 25mW or 14dBm @ 433MHz in New Zeeland.
We have 2 options, switch to your TWS-DS3 or can you lower the frequency on your TWS-HS-3 to under 868MHz?
WENSHING Answer:
For the law, please try to use TWS-DS3 and the output power will meet your law.
If your application is need far distance, TWS-HS just can fit your need but please try to decrease input voltage so that it will meet your law.

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