The 146.88 machine in Tulsa WA5LVT/R
I am the trustee for the the TRO repeater systems. I hope to clear up some misunderstandings about the system. The primary receiver location for the 146.88 is an FM Broadcast tower in the Sand Springs area. The transmitter location is the former City of Faith Clinic tower (60-story). We lost audio coming off the tower. We are having some acces problems wit the site. All of our equipment is located 500 feet off the ground. The elevator on the tower is around 50 years old. When it breaks there are no longer off the shelf parts available, and the tower's owner has to actually have the parts custom built. Also safety has became a major issue, since a technician was killed, a couple of years ago on another area tower. We can only access the tower when a tower certified employee is on site. Since their equipment at that site is highly automated, there is no one on site, and we have to make prior arrangements to meet someone out there. Finally our oldest adversary, mother nature, tries to keep us off the tower. When the elevator is working, and we've got a tech from the station scheduled, then it's raining, too cold, or too windy to go up.
Steve AA5V was finally able to get everything together, he had the time, the station's tech had the time, the weather was good, and the elevator was working. He pulled the equipment down so we can go over it on the work bench. We are making significant progress with the tower's owner getting some of our access problems worked out.
We also had access problems at the transmitter site, as they were modifying some security systems, and procedures, who isn't these days. These have been worked out in the meantime.
What we have currently down at Liberty is just a dual band transceiver set up as a crossband repeater. Since the receiver doesnot support PL decoding we have it listening on the +600 side of 146.88. For some reason the audio output from this unit has dropped very low or possibly off frequency. Since that is down near Okmulgee county, and I live in Owasso, I have asked for someone to retrieve the unit so that I could possibly check it out on the work bench, that hasn't happend. We recently made contact with another person who has a key to fire station where the equipment is located, so the site access problem is resolved. Also I am building up another Motorola based link package that is targeted to go down there to replace that unit. This one will receive on 146.28. If a better site comes along, we may move this package to it, and get a new dualband transceiver to use at Liberty, hopefully one with PL decode capability.
We now have a VHF receiver on line at City-Plex, but it suffers from a significant amount of desensitization from the transmitter. We are exploring ways to resolve this problem. The most likely way will be to put in another VHF-UHF link, but somewhere within the City limits of Tulsa. We are negotiating with some folks about a couple of additional sites.
Things are moving, but they are moving very slowly, because of changing relationships with site providers. Then right now, there are only two of us working on these systems, AA5V and me. When we need some Motorola radios programmed, or a duplexer tweaked we have another guy that helps us obtain these services.
Hopefully this will clear up confusion.
Sincerely
Merlin Griffin WB5OSM
Trustee, Tulsa Repeater Organization inc.
Twobravo said:
peterjmag said:
During yesterday's disapointing severe weather event they linked (146.94) to (444.1) I'm glad because I don't really like 94 unless you are in central or western Tulsa. Parts of East and mainly all of south Tulsa have alot of dead spots. I hope 88 is comming back up soon.
P.J. Maguire
They've been notified about the various problems with the 88 machine they have in Liberty. I don't know that they have any plans to fix it, and if they don't, I don't know why. I understand it's not due to lack of funding. Maybe some TRO people on here could shed some light on that.