Somerset County 500 TRS Tropo TV19

[rr60]

The 500 TRS is wiped out and knocked off air this AM 9/7/20.

Tropo bringing TV 19 in strong from Norfolk Portsmouth. New in 2020 as a result of TV re-packing and auction.

The new GTR8000 stations can’t override, that is assuming power output and antenna systems and combiners are up to snuff.

Take a look.

 

[richee2000]

So, the TRS was down as a result? Where did they go to communicate?

 

[RES27CUE]

i've been picking stuff up in philly on delco programmed frequencies on a handheld sounded like simulcast of some digital and analog stuff sounded like somewhere middle to eastern jersey i know a lot of counties in jersey are 7/8 now so has to be one of the few left was odd at least 50 plus miles out of area i know delco has been getting a lot of noise on their system causing communication issues i don't believe they have any back up solution

 

[SnakeEater9920]

Not sure if this is related but this morning I was pulling in some stations from Baltimore in my car. Radio stations. 98 Rock Baltimore I heard. My whole radio was scrambled, and I’m from the Bound Brook area.

Something needs to be done if these TV stations are getting in the way of Public Safety comms.

 

[GTR8000]

Something needs to be done if these TV stations are getting in the way of Public Safety comms.

You've got it backwards. The TV broadcast stations have the protection in the 470-512 T-Band (aka TV-Band), not public safety. TV was there first, and in 1970 public safety, business, and industrial in certain urban areas were permitted to operate in the band on a shared basis, but TV broadcast has remained the primary and protected user for the past 50 years.

 

[SnakeEater9920]

You've got it backwards. The TV broadcast stations have the protection in the 470-512 T-Band (aka TV-Band), not public safety. TV was there first, and in 1970 public safety, business, and industrial in certain urban areas were permitted to operate in the band on a shared basis, but TV broadcast has remained the primary and protected user for the past 50 years.

I didn't know that! Thanks for the info.

I wonder what Somerset is going to do with 500MHz with all the interference. 500 always provided me great signals over their 700 system which is spotty around the county for me.

 

[CqDx]

Picking up JB McGuire and PA P25 system from a indoor antenna in Queens NY, pretty neat.!

 

[ion_op]

I worked VE1SKY on 2m SSB last night. Best tropo yet.

 

[rr60]

Ha you will need to be able to add. I will not spell it out, some will and some will not.

For someone to suggest if the TRS goes down “hey just go to conventional repeaters” located at sites. THIS WILL NOT SOLVE THE PROBLEM.

Someone needs to understand. If the band is open the noise floor rises to block the receive too. So for example if anyone thinks in a pinch the 500.325 repeater will be available, it will not.

It has 1 MILLION Watts from 1000 feet above sea level on both the input and output courtesy of CH19 in this case.

Same problem now exists as a result of final repacking on other T band channels too.

Hot mess.

 

[mdsxfire]

The 500 TRS is wiped out and knocked off air this AM 9/7/20.

Tropo bringing TV 19 in strong from Norfolk Portsmouth. New in 2020 as a result of TV re-packing and auction.

The new GTR8000 stations can’t override, that is assuming power output and antenna systems and combiners are up to snuff.

Take a look.

I consistently monitor Somerset 500 TRS and didnt notice any issues on Monday, just wondering what time you noticed the complete loss?

 

[mdsxfire]

I didn't know that! Thanks for the info.

I wonder what Somerset is going to do with 500MHz with all the interference. 500 always provided me great signals over their 700 system which is spotty around the county for me.

700 system is getting added capacity and i believe a few sites are also being added, once all LE is moved to it i would think the slow transition for Fire/EMS etc would start

 

[rr60]

DTV Repack Is Causing ‘Harmful Interference

Long Island T Band is getting hammered since about 4am. Some public safety users systems are virtually unusable. FCC has been notified..... not holding my breath.

forums.radioreference.com

 

[KevinC]

The new GTR8000 stations can’t override, that is assuming power output and antenna systems and combiners are up to snuff.

Are you suggesting a Quantar (or some other model or even make of base station) would be able to override this?

 

[rr60]

Are you suggesting a Quantar (or some other model or even make of base station) would be able to override this?

I am not.

 

[KevinC]

I am not.

10-4

 

[rr60]

Another tropo event knocked system off randomly starting at 21:30 on 5/20/21 through the early morning hours of 5/21/21.

This is what the control channel waveform looks like when overridden by 1,000,000 watts at 1000’ MSL.

 

[richee2000]

Another tropo event knocked system off randomly starting at 21:30 on 5/20/21 through the early morning hours of 5/21/21.

This is what the control channel waveform looks like when overridden by 1,000,000 watts at 1000’ MSL.

Where did they go for backup communications?

 

[mdsxfire]

I monitor this system almost constantly, and noticed on that day there were a lot of garbled transmissions coming from towns that usually have absolutely no issues

 

[rr60]

Tropo late 7/12/21 early 7/13. Graph (rabbitears.info) shows peak signal times from TV19 500-506 MHZ. This raises noise floor enough to block some 500 TRS sites receivers at times as well as CC. Leaves some users with no service.Bonk.

 

[hill]

r60 I guess the dates in your post should be 6/12 and 6/13/21, since we aren't in July yet.