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I recently powered up my trusty old SO2R box. It lite up the TX1 red LED which is normal, but both Green LED's were on !?! If I flipped the RX selection switch from 1 to 2, the Green LED's both went out, but I heard relays close in some of my gear as if PTT had been asserted. I tried reloading Firmware. That worked fine but that did not help with the problem. It appears that the TX and RX LED's are driven off the uP. Can I simply replace it and do a Firmware update using the Pgm Jumper? All voltages look OK inside -- 73, Mike, N1JEZ "A closed mouth gathers no feet" -- 73, Mike, N1JEZ "A closed mouth gathers no feet"

My trusty old (10+ years?) SO2R box just started sending CW at <1 wpm. No matter what I did with N1MM's or the box's internal speed control, no change in CW speed. There are 3 different DIP ICs of which there are two of two types. I swapped both "pairs" and reseated the single DIP. I then reloaded the firmware and, voila, it's back to working perfectly again! I guess corrosion had built up on the pins over the years (it is humid in SE Texas) or a nearby lightning surge had scrambled something. Anyway, the bottom line is that if you see this behavior in your trusty SO2R Box, it may not be catastrophic. These things are built like tanks in my experience. Good luck, Bob K5WA

I'm making the move (back) to a linux desktop after many years away. I've got solutions for many of my issues but finding a way to control my SO2R mini is one of the remaining tasks. I've looked at the OTRSP command set and it seems simple enough, but I'm not having any luck getting the commands to the box. If I need to send something like "RX1" to the device, is that expected to be ASCII or Hex encoded? I've attempted to just echo some commands to the serial device with no luck. Bringing up a terminal program attached to the port at n81 9600 baud doesn't do anything either. I know I have the correct port from the output of dmesg and watching the connect/disconnect messages. Any input would be appreciated! My ultimate goal was to get it working with my elgato streamdeck, which should be simple enough if I can figure out this issue. -Steve N1JFU

I obtained a spare (backup) SO2R Box+ and comparing it to my original unit I notice that the audio is say a good 6db lower when listening to radio 1 when plugged into either channel 1 or channel 2. This is only with the radio plugged into either DIN, 12Vdc and audio out plugged in and of course flipping the rx switch. Any things I should check or buy for replacing? Paul was there a chip that was universally replaced in the original buy? I think the vintage of both units is the same. Seems like I remember something about a green or white device that should be replaced (updated)? Tnx, Mike W9RE

Paul, on Nov 11 I ran into this situation: I was setting up vm (dvr voice messages) on two K4Ds on Saturday. Using TRLinux and a YCCC SO2R Box + (this right probably only applies to two or three stations). VM were set up and I was testing what would stop a vm if I got a response on a radio. Normally an Alt-R would do this and it did fine. So I am remembering how if you hit the PTT (foot switch) with a K4D that will stop a vm. Well I tried that. What happened had me puzzled for 1/2 an hour. I lost audio on both radios. I was in Test Mode and when I hit M1 on either radio the radio would swing wildly in/out of transmit but I could not hear any audio (monitor was turned up) and still no rx audio. I tried rebooting the radios with the same thing happening. Finally after a while I found that the PTT was held low by my SO2R Box to both radios. Rebooting the SO2R Box fixed the problem. Now tonight Nov 14 I had this happen: I was in a little bit of a hurry tonight getting things turned on and then ran into a big problem. Whenever I would key a radio they would go into transmit and not come out. I ran into this thing last week before the SSB Sprint and corrected it by rebooting the SO2R box but this time it didn't work. I guess I will have to reflash my SO2R box W6FB replied: I had this issue with my SO2R+ box a few weeks ago. I believe it was caused by killing power on the box instead of flipping the front panel power switch to off. The solution was to bring up the SO2R Utility and reset the box, which resets the eeprom to default values. It worked until the next time I powered it off by killing the main +12V supply. I again reset the EEPROM with the utility and it has worked fine ever since. I learned my lesson, I now power it on and off with the front power switch, then when it is off, power off the main 12V supply. 73! Jack,W6FB So before I reflash is there anything I should look for using the utility so I can pinpoint what happened? I have always just killed power and I have not used the switch on the SO2R Box. Thanks, Mike W9RE .

I have difficulties with configuration of my SO2R station with 2 Yaesu 101MP radios and I am wondering if N1MM allows 2 radios with 2 receivers. Every time I try to sync the two receivers on one of the radios, both radios change to the same frequency, which becomes a conflict. I can set the configuration in DXLog to work but not in N1MM. If anybody could give me a hint I would appreciate. Thank you, Alex AK1MD

Hi I am using the YCCC SO2R Box for audio routing for my remote station. Without contest software, just using the SO2R utility. Turns out that choosing STEREO on the SO2R Box utility disconnects the device with message "Device removed" and only walking over the the station and cycling the power will fix this. Any ideas? Thanks! Markku OG2A/OH2RA/WW1C

Paul, Here is a situation that I just ran into and I am sure I am the only one with it. Setup: TRLinux 0.49, SO2R Box +, K4D, using voice memories in K4D, foot switch connected to SO2R Box (PTT). Works 100% on CW when using a foot switch/PTT to initiate memories (foot switch can be selected in TRLinux to act as hitting F1, swapping radios, enter key, etc.). But since the K4D stops the voice memory from playing when a PTT signal is seen using a foot switch won't start a voice memory (because of the strobe PTT closure signal that is seen by the radio). If I unplug the PTT line going to the radio it works fine. I have been in contact with Tree and TVBob on this issue. I believe it worked fine with a K3 but the addition of interrupting a vm with a closure from a foot switch on the K4D is what has caused this happening. By chance you don't have any suggestions on this? Is there anything in the SO2R utility that could change the operation on ssb? Tnx for your quick and continued support, Mike W9RE

In the SO2R box utility I select straight key from the keyer type menu and both rigs will work with my bug. When I launch the SO2R box app the straight radio button is selected in the keyer menu. After starting N1MM the SO2R box reverts to iambic and sends a string of dits or dahs. Can I run my bug with the YCCC SO2R Box and N1MM? Bill, N0AC

I've been using the so2r box for years, but suddenly this afternoon the mic and phones relays are not switching their lines. The LED's look like it's behaving normally, but I don't hear any relays clicking and the mic/phones are always connected to rig 1. Any quick ideas before the SSB Sprint? Thanks.

Hi all, I’ve just bought used YCCC SO2R+ box. Successfully installed all the needed software, virt com ports etc. The box work properly with N1MM. Keying both radios and switching focus. The only thing I have problem with is right side audio in headphones. On left side I can hear left radio, right radio and both. On right side can hear nothing… Already checked phone plug, did some eye inspection of the board, resoldered bad looking connections on the board and stil no audio in right ear. Next I’m going to go through the audio path checking all the elemnts etc. but before that I would like to ask a question here. Maybe any of you had the same problem before. Maybe it is some well know problem or any of you have some sugestions? Would be much appreciated for any help. Cezar, SP5 Y

I've been using my YCCC SO2R+ 4-radio box for several years now, and I'm very pleased with it. Just lately, however, it seems that, each time I switch it on, it has 'forgotten' its settings and corrupted the firmware. This manifests itself in the SO2R Box program by showing Radio 1, Radio 1, Radio 3, Radio4 in the middle of the window, instead of Radio 1, Radio 2, Radio 3, Radio 4. If I change it so the 2nd box reads Radio 2, it is quite happy to switch between radios on OTRSP command. However, the second manifestation of the problem remains, namely that the RX audio does not switch correctly - I can hear radio 1 and radio 2 in the left ear, even though I have asked it to switch to only radio 2. I re-load the firmware, using the SO2RBox Utility and all is well. Next time I switch it on, things have reverted to the errors described above. Is there some kind of backup that has failed? I can see no sign of a battery or a large capacitor in the schematic, so I guess it is in the PIC. Could that lose its ability to retain its setting? Any advice would be gratefully received. Thanks, John G4DRS

Test to see if I am now a member of this group. de K1WZC - Bert

Reassembled my station and all is working as it should again. No idea why I lost the previously installed firmware......heavy rain the night previously but no thunder or lightning, all very strange .!! 73 Rodger/GM3JOB

I finally got round to checking out my SO2R+ box today, I followed Paul's instructions and discovered that the firmware was corrupted. I downloaded the new updated firmware and it would appear my problem is resolved. I will connect everything back up tomorrow and see how it goes..Many thanks for all assistance, much appreciated. 73 Rodger/GM3JOB

This morning when I attempted to power up my SO2R+ box nothing happened complete failure, no Led's zilch.. Preliminary checks established that the box was getting 12 volts and the internal fuse was good and that the first voltage regulator was also good as was the on off switch. Has anyone seen this before and any advice on fault finding to proceed.? Any help much appreciated. Rodger/GM3JOB

Hello, Looking for at least one set of ICOM Cables for the YCCC SO2R BOX. If you have one or two you want to part with, please contact me directly. Thank you and 73, Jose - N4BAA CQ WAZ Manager

Greetings to all ! I usually use the SO2R configuration, N1MM+, two keyboards and one PC. To switch left, right, both, I connected two pedals to pins 10 and 11 of the AUX connector. What is very convenient. Recently installed all the parts on the board of the box. I connected the third transceiver to the third input that appeared. Using macros {OTRSP MAP23} with AHK, I swapped the second and third radios. And then I got lost. How to switch CAT connection? N1MM+ only supports two radios. Currently I use an additional third transceiver with second computer and for switching I use the third pedal, which connects both ears to the third transceiver through a relay. Who knows the most correct connection for SO3R use in CW and SSB ? And what is the idea of four inputs in general ? 73! Yuri EB5A

Greetings to all ! I usually use the SO2R configuration, N1MM+, two keyboards and one PC. To switch left, right, both, I connected two pedals to pins 10 and 11 of the AUX connector. What is very convenient. Recently installed all the parts on the board of the box. I connected the third transceiver to the third input that appeared. Using macros {OTRSP MAP23} with AHK, I swapped the second and third radios. And then I got lost. How to switch CAT connection? N1MM+ only supports two radios. Currently I use an additional third transceiver with second computer and for switching I use the third pedal, which connects both ears to the third transceiver through a relay. Who knows the most correct connection for SO3R use in CW and SSB ? And what is the idea of four inputs in general ? 73! Yuri EB5A