SKYWARN net

Status
Not open for further replies.
Joined
Mar 1, 2005
Messages
19
:!:
WX5TUL SKYWARN frequencies
146.94
443.85

These are the 2 main frequencies everyone can tune in during severe
weather in Northeast Oklahoma.
The reason why they are using 146.94 is that there are audio problems
with the Tulsa 146.88 repeater.
Just thought I'd let everybody know.
:D
 

peterjmag

Member
Joined
Dec 14, 2001
Messages
2,045
Location
Tulsa, OK and Wichita, KS
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
 

CommShrek

Member
Joined
Dec 28, 2004
Messages
671
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.
 

K5MAR

Member
Joined
Oct 13, 2002
Messages
2,265
Location
Stillwater, OK
Twobravo said:
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.

I understand it's an access problem at the site. They are aware of the problems and are working to get them corrected.

Mark S.
 

peterjmag

Member
Joined
Dec 14, 2001
Messages
2,045
Location
Tulsa, OK and Wichita, KS
The TRO is waiting for the radio tecs from Channel 6 to say it's okay to go up on the tower. The elevator was down for quite some time. Then they ran into too many windy days. So until they further advise, the severe weather nets in the Tulsa metro are on the following...

146.94 VHF WX5TUL TULSA WEATHER NWS
444.1 PL tone 88.5 UHF linked to 146.94 WX5TUL
443.85 PL tone 88.5 UHF link to TARC Super System WX5TUL


P.J. Maguire
 

CommShrek

Member
Joined
Dec 28, 2004
Messages
671
K5MAR said:
I understand it's an access problem at the site. They are aware of the problems and are working to get them corrected.

Mark S.

Access as in they can't get in the station to work on it?
 

KD5WLX

Member
Joined
Aug 4, 2003
Messages
275
Location
Tulsa
Tower Access

Yes, access as in the repeater is on a platform some 2/3rds of the way up the tower (~500', IIRC). Hence the need for access (TV personnel to let them in) and the elevator (that's a loooong climb).

I don't know if this is THAT repeater, but I know that one of their repeaters is way up there - to save on coax (cost and line loss) the repeater is on a platform somewhere near the height of the antenna.
 

CommShrek

Member
Joined
Dec 28, 2004
Messages
671
Re: Tower Access

KD5WLX said:
Yes, access as in the repeater is on a platform some 2/3rds of the way up the tower (~500', IIRC). Hence the need for access (TV personnel to let them in) and the elevator (that's a loooong climb).

I don't know if this is THAT repeater, but I know that one of their repeaters is way up there - to save on coax (cost and line loss) the repeater is on a platform somewhere near the height of the antenna.

Oh, ok. I think we're talking about 2 different machines. There has been some type of problem with the machine in Liberty. I've told them about it before but they haven't fixed it. It's been messing up for almost 2 years now.
 

K5MAR

Member
Joined
Oct 13, 2002
Messages
2,265
Location
Stillwater, OK
Re: Tower Access

Twobravo said:
KD5WLX said:
Yes, access as in the repeater is on a platform some 2/3rds of the way up the tower (~500', IIRC). Hence the need for access (TV personnel to let them in) and the elevator (that's a loooong climb).

I don't know if this is THAT repeater, but I know that one of their repeaters is way up there - to save on coax (cost and line loss) the repeater is on a platform somewhere near the height of the antenna.

Oh, ok. I think we're talking about 2 different machines. There has been some type of problem with the machine in Liberty. I've told them about it before but they haven't fixed it. It's been messing up for almost 2 years now.

Check this link for details on the 88 system:
http://www.tulsahamradio.org/R14688.htm
The Liberty machine is a receiver using the positive offset (147.480MHz) for 146.880 instead of the normal negative offset (146.280MHz) The main 146.280MHz receiver is located on the Ch. 6 tower. Both these receivers are linked via UHF to the transmitter on the City-Plex tower, which also has a 146.280 receiver. A voter is used to select the strongest signal to be repeated.

The 146.28/.88 pair is the primary pair used for Skywarn activity, and the receiver on the Ch. 6 tower is the main receiver for this pair, due to it's height.

Thanks to PJ for confirming what I thought I remembered regarding the problem, I wasn't sure so wouldn't say. And yes, Twobravo, they have to be granted access to the tower by Ch. 6 to perform any work. If I recall correctly, they suspect antenna or coax problems, hence the need to go up the tower. The story I heard was that the elevator got about 60-75' up the tower when the elevator quit. The club members had to leave their tools in the elevator and climb back down. The station later managed to get the elevator down and returned the tools. So now they are waiting on the elevator to be repaired (if it hasn't been already), then they have to schedule a time that is mutually convenient to the club members and station engineering staff; and hope the weather is OK that day. This is what I heard from TRO members at the Okla. Repeater Society meeting last month, the situation may have changed since.

Mark S.
 

steveaa5v

Member
Joined
Apr 28, 2005
Messages
4
Location
Sand Springs, OK
Tower Access

This forum thred was brought to my attention. Just thought I'd throw in my two cents worth.
I have been maintaining the 146.94 repeater, pieces of the 146.88 repeater and the 444.1 for many years now. The pieces of 88 I'm speaking of are the pieces located on the former channel 6 transmitting tower 3 or 4 miles north of Sand Springs.
The audio problem we are having on the 146.88 repeater is a problem at the aformentioned tower at the 500 foot level.
After some sort of settlement was made with the family of the poor fellow that lost his life on the channel 8 tower a year or two ago, the lawyers for channel 6 forced a review of their tower properties and who has access to them. Until last June (2004) I had keys and access codes etc. to the channel 6 tower north of Sand Springs for 24 years. Now I cannot go on the tower without one of their (channel 6) techs with me. The tech and I made an attempt to go up the tower on January 27th of this year and the elevator stopped at 400 feet. The tech & I climbed down to the first set of elevator switches available and could not make the elevator move either direction. Having ran out there on a lunch hour I had no choice but to climb down the tower and get back to the office. The tower, elevator etc. was made in 1953 ugh it's only one year younger than yours truly. Anyway, it wasn't until April that the elevator was fixed. The channel 6 tech and I have been trying to get together to get back up there. So far when we were able to get together the weather didn't cooperate with us. All I can say, is, hopefully, real soon. Till then Tulsa County will be handled on 146.94 and of course the UHF link system 443.85 Tulsa and east and 442.000 in west Tulsa County (both of which are part of what us TARC members call the Super System in that it covers all eastern Oklahoma and northwest Arkansas).
Now, the receiver for 88 in the Liberty area. I wish I had an excuse for that one. I am pushing to replace that setup with a 146.28 receiver and UHF uplink transmitter PL'd with 82.5Hz. I am not one that normally works at that site but am going to try to get access there.
When the main 146.28 receiver on the tower IS fixed it will no longer be open. A 88.5 PL will be required to access it.
The 146.34 repeater is all on the tower north of Sand Springs. The receiver and transmitter set at the 500 feet level but the receive antenna is at 700 feet and the transmit antenna is at 500 feet. This gives enough seperation that a duplexer is not necessary. The 146.28 receiver on the tower uses the same receive antenna as 146.34.
Sorry for the inconvenience with the 88 repeater not working and I hope for better news real soon.
Thanks to everyone for the interest.

Steve - AA5V
Tulsa Repeater Organization
 

OkRob

Member
Joined
Apr 13, 2004
Messages
185
I did the initial install and used to take care of the Liberty receiver site. I helped the last time work was done on it, but wasn't aware there was a current problem with it. I'll get with TwoBravo for details on that. If access to the site (it's locked up of course) is an issue, that is easily resolved.

- Rob
 

CommShrek

Member
Joined
Dec 28, 2004
Messages
671
OkRob said:
I did the initial install and used to take care of the Liberty receiver site. I helped the last time work was done on it, but wasn't aware there was a current problem with it. I'll get with TwoBravo for details on that. If access to the site (it's locked up of course) is an issue, that is easily resolved.

- Rob

Listening to some radio traffic now 13:13 on the 88 and Mark and Steve are talking about this very issue. Gotta get back to work now.
 

n7xyo

Member
Joined
Oct 2, 2004
Messages
1
Location
Liberty/Mounds, Ok
The 146.880- machine is working as best it can for now.

Many thanks to Steve Miller AA5V for spending some of his Saturday to work on .88 (Steve said I did a fine job holding the flashlight) HI HI

The 146.880- machine is working as best it can for now. We are using the receiver on at City-Plex tower with the 88.5 pl. The remote receiver from six tower had been taken out of the loop for now (until we can get access to the site on the tower).

Work and improvements will be made as we have access to six tower.

Please e-mail any signal reports to wa5lvt@arrl.net

Appreciate your patients,

Mark Conklin N7XYO
TRO President
 

OkRob

Member
Joined
Apr 13, 2004
Messages
185
Hey Mark & Steve, glad to see you guys here, and welcome to RR. If you all need access to the Liberty site, just let me or TwoBravo know. I'm pretty useless right now with this busted arm, but I can supervise pretty good :) It sure ended my chasing intentions for this Spring as it absolutely hates riding in the car :) I have 4 screws in my arm with an external fixator on it, so it sucks to put it mildly. :) 73 for now....
- Rob
 
Status
Not open for further replies.
Top