All Questions
Tagged with transceiver antenna
9
questions
2
votes
1
answer
357
views
Sub 1 GHz communication - long range at 500kbps. Is my range estimate roughly correct?
When researching long range medium bitrate RF comms I came across the TI range. The TI CC1201 transceiver claims -97dBm sensitivity at 500-1000kbps. If the system is on the 868MHz band which is ...
- 608
-1
votes
2
answers
139
views
Half-duplex wireless: Is a tuned antenna more important for the transmitter or the receiver?
I intend for this to be a general/conceptual question that could apply to any wireless communication hardware, however I will use a specific example to talk about.
Let's consider the nRF24L01. (...
- 5,182
1
vote
2
answers
633
views
A Single Antenna for Multiple Sub-GHz Receivers
I am thinking about making an inexpensive LoRa geteway by combining eight single-channel RFM95W 915 MHz transceivers. These would just work as receivers, and I would have a 9th one working separately ...
- 83
1
vote
1
answer
223
views
Soldering SMA to a Transceiver
I'm a noob in Electronics. I want to use this module that doesn't have SMA or u-fl connector. my Question is how can I use SMA or u-fl connector with this kind of modules or how can I solder them the ...
- 121
2
votes
2
answers
689
views
Shared antenna on multiple 2.4Ghz receivers
I want to use several 2.4 Ghz transcievers (not sure which IC yet, either Atmel AT86RF*** or TI CC) in order to build a simultaneous multi-channel sniffer. The transciever output is differential. I am ...
- 23
0
votes
1
answer
502
views
Helical wire antenna normal mode or axis mode?
I have bought theses two RF-transceiver CC1101 module from e-bay(image below), and I want to know if it is a helical antenna in normal mode or in an axis mode.
The specification doesn't say anything ...
- 101
1
vote
1
answer
318
views
Two different length antennas can cause problems?
I am using two 443 MHz transceivers (FY-605 transceiver) with both having different antenna lengths. One antenna is around 12cm long and the other antenna is around 17cm long. Will this cause problems?...
- 807
2
votes
1
answer
229
views
Transceivers - how to select an appropriate antenna?
I was considering purchasing these small transceiver modules but am unsure about sizing the antenna. I recall having read somewhere that the antenna must be in proportion (wavelength/4) to the ...
- 3,461
3
votes
3
answers
3k
views
RF Design: A Bluetooth Repeater
I am currently stumped in the design process in creating a method to intercept Bluetooth signals with an antenna and simply outputting the exact signal through another antenna.
Some Background
I ...
- 1,825