[GENERAL] When they do connect the board via USB cable the green led will be activated. They succeed in opening a connection via the serial port however they can’t go further. When they try to auto detect the baud rate and when they modify all connection parameters the RC1180 does not answer.
[GENERAL] What is the module integrator (module end user) responsibility under the new RED Directive?
[GENERAL] What are the environmental conditions in which Radiocrafts modules are capable to operate? Is there demand of some isolation or harmonization to operate outdoor? What about humidity and condensation?
[GENERAL] We would like market this product in Japan, and but doing some research, I have found contradictory information. Do you know what frequency is available in Japan?
[GENERAL] WE need to know about the Release Notes from FW 3.14 to 3.15 and what is the last FW – Version.
[GENERAL] We need to do field testing in order to choose the best solution. Can you please send us more detailed Reference Design for how to implement our solution on his board (Schematic/Block Diagram/Gerber files…)
[GENERAL] We are loosing packets, about 625 packets transmitted ( at 32ms), we have 1 or 2 lost 3- only one transmitter and one receiver.
[GENERAL] We are currently laying out our PCB to use your RC1180-RC232 and ask if there are any preferred methods that you could advise, to ensure we obtain immunity to 8KV ESD signals, especially when applied to the ground side of the antenna connection. The unit also connects to a standard USB computer port.
[GENERAL] We are a production company that is assembling PCBs. One of the PCB that we are making has a Radiocrafts RC2411-HP-AT mounted. During the reflow process the module starts floating and is creating short-circuits between his pads under need the module. Can you advise use how to avoid this?
[GENERAL] One customer is asking for / requiering an automatic switch to an external antenna, if the internal is not sufficient ? Do you have a soultion for this ?
[GENERAL] On the slave side I can see that it is still in command mode sending X; could this be the problem? Is this the expected comportment?
[GENERAL] My question is why a short glitch can be recognized as a start bit by UART interface, because the bit timing is 104us for Baudrate=9600. Can you please give to me a description of the receiving algorithm of the UART interface?
[GENERAL] It seems that the problem does not come from the transmitter since they did see the problem by putting a second receiver and it is the same. Do they have to increase the transmission power of the transmitter ? They are working at 0dbm, 100 kbps and range 5 meters ( max 40 meters) Is it the CRC error which cancel the data ?
[GENERAL] i would just ask you if there is some modul in your portfolio which is able to transfer audio signal ?
[GENERAL] I need an RF module with a data-rate on air (not serial) of 250kbps at least, as well what’s the size of the frames and the size range of the data frame?
[GENERAL] How does a folded pcb antenna performs? Is there a reduction in gain versus a straight antenna ?
[GENERAL] has RC2400 always been RoHS compliant? if it is, so when did you start manufacturing this part?
[GENERAL] Do you have a solder profile curve ? They want more info than a reference to the JEDEC standard. What about the peak temperature mentioned in their email?
[GENERAL] Could you send provide ome data,tables when described regulation rgarding allowed transmit time vs chanel and frequiency for 1180-TM and 1180HP-TM.
[GENERAL] Can we build up a two way communication from a PC with one of your tools to our embedded controller ?
[GENERAL] “We will need industrial standards and are wondering why the industrial modul RC17xxHP-RC232 is designed for a temperature range of just -30 to +85 °C and the general purpose modul RC1180HP-RC232 ha a temp. range of -40 to +80? Could you help us in understanding this specifications please. “
[GENERAL] “We were testing the range of RC1700HP and we were able to reach about 500 or 600m (NLOS) which is far away from 1.5km you write on your web page. We used this configuration: – VCC_P was 3V3, so the TX power was 24 dBm – H169-SMA antennas on both sides (1/4 wave) – Channel 2a, 2.4kbps data rate, frame format A Please, could you give as some suggestions for increasing the range? Even if the receiver sensitivity should be -119 dBm, the lowest signal received during our test was -105dBm (reported by the module). Does it mean that the noise floor is about this value? “
[General] “We have plan to locate GSM part on the opposite side of PCB – to the other end of the board than RC1180 – can You see any problems ?”
[GENERAL] “The application is based on a master which will send a broadcast frame. Slaves will receive the frame and will answer to the master simultaneously. How to manage anticollision. How will the master be able to manage several answers at the same time? “
[GENERAL] “Now my next step is to configure the module on the pc board. Can I use the Usb Stick OR Must I send it via the UART from my microcontroller. I obviously have to pull the config pin low. “
[General] “I have a question regarding the coexistence of your 900MHzISM radios such as RC1081 with GSM. A GSM transmitter emits 33 dBm but your maximum allowed input power is 10 dBm. Does this translate into the rather demanding requirement of minimum 23dB antenna isolation? What is the effect of having above 10dBm fed into transceiver, will the receiver only be temporarily saturated or is there a risk of permanent damage. What is the maximum allowed level to avoid permanent damage. A second question regarding interferers. As I read your datasheet a blocking interferer can be allowed to be -106dBm+3(level above sensitivity limit)+75(stated typ interferer rejection)=-28dBm. Am I interpretating your figures correctly? “
[GENERAL] “I am currently also using RC1180-MBUS3 radio modules on my ‘receiver’ side. Can I also order RC1180-MBUS3-USB-stick?? “
[GENERAL] “How does a folded pcb antenna performs? Is there a reduction in gain versus a straight antenna ? “
[General] “How do You recommend to locate RC1180 and antenna on the PCB ? – How antenna should come out from the metallic box – should I t be totally out of the box or can it be only partly ? – What material You recommend as a metallic box ? – Does RC1180 module need a separate metallic RF protection cover around . if yes what kind of structure / material You recommend ?”
[GENERAL] “. I can’t connect to it via serial port. I suppose that some configuration option in memory is set incorrectly. I would like to restore the memory values to default values, so the module will hopefully respond again. My question: How do I do this? “
[GEN] The signals should be injected into the SMA connector directly with a cable without using the antenna. So I would like to kindly ask if there is an upper limit to the maximum input power at the SMA connector which shouldn’t be exceeded in order to avoid possible damages to the receiving circuits?
