What dish are you using for the Ptp?
Looking at my 4600c PtP I believe ealign shows the RX signals. So to me it looks like your Master side is the one getting bad RX signal on one chain. It would make me think you have a bad transmitter on one chain on the Slave side.
Is the total signal weaker at all for the link? Like did one side drop more capacity/signal than the other? Could also be an issue where one end is off aim and it is affecting one polarity more than the other.
I had a PtP link that in March the Master side was off aim due to wind. Slave RX MCS dropped a few levels but Master side dropped many more levels. Unfortunately, I do not have the signals recorded for both sides so I cannot recall if the Master side signals were equally low on both RX chains or imbalanced.
@terintamel thank you for your reply. I am using rfe 29 on both ends
@terintamel both e aligns, Master and Slave, are showing a total signal of -63….
Master side
Slave Side
Here are slave stats
Wireless Tab of Master
Link score of Master
Link score of Slave
Could still be alignment, but I am leaning more towards at bad transmitter at the slave side. Honestly with PtP links it is really a coin flip on which side is the issue. 50% of the time I choose the wrong side.
I guess it comes down to which is more likely to happen to the hardware. Are the radios more likely to have a bad TX amplifier or a bad receiver? I’ve seem both over the years with different hardware.
I remember several Airmax AC-500 radios I had to replace as one RX chain would drop to the -80s. I also had Rocket Titatiums that kept blowing one of the TX amplifiers and needed replaced.
Unless Cambium can chime in with a way to find out for sure, I feel you are going to have to choose a side, bring a replacement, and then check connections and alignment and then try a radio swap.
What Twistport adapter are you using? Are you using the 6ghz one or a regular 5ghz one? I’ve heard that you could damage the radio if running 6ghz channels but not using the 6ghz twistport.
Thank you for your insight, using the 6ghz.
@terintamel here is the master e align now…
Have not trucked rolled to slave side, high winds and rain have delayed investigation.
Been there before. I would probably choose the slave side as well to start. Which way are the winds blowing? If the winds are blowing right at your dish face then it could be alignment especially as I have issues at times with the RFE side mounts staying tight if the wind hits it in right way depending on if the mount is on the left or right side of the dish.
Appreciate your insight. Winds are coming from the west. Again, thank you for your help. Will be prepared for all scenarios once safe to climb. Cheers!
@terintamel Well I am stumped, everything went back to normal on its own. I am puzzled.
Here is the master now…
That is odd. Maybe some type of weird thermal inversion only affecting one polarity? Moisture in a SMA connector that has dried up?
Yes I am wondering if moisture is the culprit… using the rfe direct connect.
I sure would check PTP alignment. A few years back we had dishes moving all the time after storms so we made some special support arms to create that triangle support and every since have had no alignment issues. Does not take much to have a chain issue with mis-alignment. Just a thought.
