Changed back to 135.45
I stand corrected and spoke too soon. They have now gone back to 135.45 at MLC as heard on my feeds at KFYV and KHRO. 134.475 is not at MLC or TXK as documented on RR. I have been to both places. Neither is 126.575 at TXK, either. It used to be, but not now, or only occ. 123.925 is the only consistent frequency at TXK. I guess a pilot uses FSS after the tower closes to pickup an IFR clearance.
Beats me where they are. Gentleman who works with the radios at TXK states that 134.475 and 126.575 are at Cumby. Apparently the RCAG at TXK is in a place not conducive to good transmissions (west of the Texas
&M-Texarkana college) as I only heard 123.925 clearly. The other two are not there or not being used due to reception issues up high. Paris is only monitored for IFR pickup on 124.875 as I was there, too.
120.125 is indeed at Marshall. Don't know why Fort Worth used it instead of 135.45 unless a stuck mic was the issue. Gave the Memphis Center controllers a problem for a little bit as 135.45 has always been at MLC. I wish they would put 134.475 at MLC so I could put an online feed on using 132.2, 134.475, and 135.45 on with their associated UHF freqs. I hear aircraft checking in on 134.475 at FL400 so I guess it is at Cumby. I hear all the aircraft clearly on 134.475 in Roland, OK. Pretty busy as it is a handoff from KORK, KFYV and KHRO RCAGS.
Finally, the man at TXK states they are trying to build a new site or extend the antennas to bring back 126.575 and 134.475. MLC just won't do because of reception/interference problems (most likely).
Happy listening!