Martin Jelovsek Posted June 27, 2014 Report Share Posted June 27, 2014 Hi guys, I hope that you could help me. I would like to make myself an USB serial cable for connecting 3 QRXs together. The problem is that I have already done one as it said in the manual but it did not work. I have connected the pins on USBs like this: QRX USB OUT -> QRX USB IN 2 -> 1 3 -> 4 If I try to change gain on the slave unit it does not work ... Now I am not sure if I did the cable right ... Thank you for all the ideas and help you could give me Martin J. Quote Link to comment Share on other sites More sharing options...
howy Posted June 27, 2014 Report Share Posted June 27, 2014 Here is the diagram of the setup. Make sure you have QRX-330 or 331 in there since some of the recent software versions broke that feature. www.zaxcomftp.com/fileshare/software/QRX ZaxLanUSBcableWiringDiagram.pdf -howy Quote Link to comment Share on other sites More sharing options...
Martin Jelovsek Posted June 29, 2014 Author Report Share Posted June 29, 2014 Hi Howy, thank you ... I upgraded the firmware to QRX-330 and now the commands work Martin J. Quote Link to comment Share on other sites More sharing options...
RadoStefanov Posted June 29, 2014 Report Share Posted June 29, 2014 make sure to mark in and out ends of the cable Quote Link to comment Share on other sites More sharing options...
osa Posted August 27, 2015 Report Share Posted August 27, 2015 I just did exactly as the op - made my own cable wired as per the manual, made sure all unit codes match accordingly etc. i linking a qrx100qifb and a qrx200 and experencing the same problem as above. Cant get remote gain to work no matter what combo of cable connection. Cant get howys link to open either although i suspect same as manual? Does the firmware howy mention still apply even for a new qrx200 just purchased? -Ken Quote Link to comment Share on other sites More sharing options...
Martin Jelovsek Posted October 29, 2015 Author Report Share Posted October 29, 2015 Better later than never ... @osa I would recommend it to check the firmware as with me it started working after update and now it works without the glitch. The only thing is be sure to mark the cable-ends (which one is IN an which one is OUT). I did not do it with one cable and then it took me awhile to figure it out ... Martin Quote Link to comment Share on other sites More sharing options...
osa Posted November 2, 2015 Report Share Posted November 2, 2015 thanks martin! like many things i had put this on the back burner but will attempt again soon when i get some free time. i feel certain this is the root of my issues. -Ken Quote Link to comment Share on other sites More sharing options...
osa Posted December 16, 2015 Report Share Posted December 16, 2015 Just getting around to trying this again. making sure i have this correct - my qrx200 says v3-66 so i need to take it back to 330 or 331? And the qifb receiver as well? Worried about losing other features so i want to make sure others have been ok before i do it i almost could live without this feature but now that i say it i am sure i will be wishing i had it on a job tomorrow -Ken Quote Link to comment Share on other sites More sharing options...
howy Posted December 17, 2015 Report Share Posted December 17, 2015 I will have to double check. What firmware are all you guys running with this serial QRX setup? Note there is a menu now in QRX that specifies what the serial port is supposed to do that would have to be set to ZAXLAN for this to work. I still need to check it though since I have not wired up this setup in a log time. Quote Link to comment Share on other sites More sharing options...
osa Posted December 18, 2015 Report Share Posted December 18, 2015 i am running 3.66. i was gonna try 3.68 just for kicks. i did indeed have it set to zaxlan on my qrx. i could not get it to work. thanks howy for looking into it! -Ken Quote Link to comment Share on other sites More sharing options...
Wandering Ear Posted December 19, 2015 Report Share Posted December 19, 2015 What qifb option version do you have installed? You may try updating that as well. Quote Link to comment Share on other sites More sharing options...
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