Search found 346 matches
- Thu Apr 19, 2018 4:27 pm
- Forum: Master Control
- Topic: X-Y protocol??
- Replies: 20
- Views: 262
Re: X-Y protocol??
The FS2 will frame-rate convert, although there may be limits...I haven't looked. We have one converting two devices (an Apple TV box and a grid cam) from 1080i60 to 1080i59.94. The FS1 certainly can't do that. We had a smattering of X-Y protocol devices over the years, and some third-party computer...
- Thu Apr 19, 2018 11:14 am
- Forum: TV Engineering
- Topic: TV tower collapse near Springfield MO
- Replies: 1
- Views: 109
TV tower collapse near Springfield MO
http://www.ky3.com/content/news/TV-towe ... 61283.html
Sad. The fact that only one of the six crew members on the tower was killed is amazing.
This will place even more pressure on an already tight pool of tall-tower crews with the TV repack underway.
Sad. The fact that only one of the six crew members on the tower was killed is amazing.
This will place even more pressure on an already tight pool of tall-tower crews with the TV repack underway.
- Wed Apr 11, 2018 10:33 am
- Forum: FM Radio
- Topic: FM3.5 odd problem
- Replies: 9
- Views: 313
Re: FM3.5 odd problem
The FM3.5 uses a solid state relay in the primary of the plate xfmr. Nice work finding that. Would never have guessed to look there. Harris had a field upgrade for that, adding a magnetic contactor. The contactor went in the plate primary circuit,the SSR then got rewired to operate just the contact...
- Mon Mar 26, 2018 10:58 pm
- Forum: TV Engineering
- Topic: Transmitter Nitrogen Issue
- Replies: 25
- Views: 458
Re: Transmitter Nitrogen Issue
I know my previous post was 100% ignored on this topic , but hopefully you'll pay attention to this one. OSHA requires those tanks be secured to the wall or structure. If the Tank is not secured to the wall, it MUST have the safety cap on and tight on top. If you tip a tank over, and the valve pops...
- Mon Mar 26, 2018 1:11 pm
- Forum: TV Engineering
- Topic: Transmitter Nitrogen Issue
- Replies: 25
- Views: 458
Re: Transmitter Nitrogen Issue
That tank needs to be chained or strapped tight to a wall, bollard, or other structure so it can't fall over. If it falls over and the valve gets knocked off, BAD things will happen. Plenty of online videos, and even a Mythbusters segment on what happens.
- Mon Mar 26, 2018 1:08 pm
- Forum: FCC Discussion
- Topic: RX-only C-band receive station registration, form 312
- Replies: 27
- Views: 445
Re: RX-only C-band receive station registration, form 312
If you're a phone geek, this link will be a colossal time-suck. :D Isn't that the truth. I spend a couple of hours digging thru the site and learned the name of several local sites that I have seen all my life and a few whereI have worked on 2-way and FM equipment. But never found a single mention ...
- Mon Mar 26, 2018 12:51 pm
- Forum: TV Engineering
- Topic: Transmitter Nitrogen Issue
- Replies: 25
- Views: 458
Re: Transmitter Nitrogen Issue
I'd do a bubble test first before going through all that trouble.
Also, is that tank chained to the wall?
- Sat Mar 24, 2018 9:53 pm
- Forum: FCC Discussion
- Topic: RX-only C-band receive station registration, form 312
- Replies: 27
- Views: 445
Re: RX-only C-band receive station registration, form 312
3.7 - 4.2 GHz. I think most of the AT&T land-based microwave channel and modulation specs carried over to the satellite transponder specs. It was all about making phones calls back then. And a TV network or two. http://long-lines.net/ If you're a phone geek, this link will be a colossal time-suck. :D
- Fri Mar 23, 2018 10:34 am
- Forum: TV Engineering
- Topic: Replacement for HD-Star
- Replies: 6
- Views: 150
Re: Replacement for HD-Star
They let me have ours back:) From the Main Menu; - Sig Info - ANC Status Any ancillary signal that's present shows up in white. (it's grayed out if it's not present) It'll also show red if the packet is present but has errors. The Setup button lets you define the three User-n options at the bottom ...
- Thu Mar 22, 2018 1:47 pm
- Forum: TV Engineering
- Topic: Transmitter Nitrogen Issue
- Replies: 25
- Views: 458
Re: Transmitter Nitrogen Issue
Whoops! Just remembered another issue. We had a site where the tanks were going empty pretty fast and found the leak was caused by a bad fitting that attached the regulator to the nitrogen tank. Check that fitting to see if it is grooved, or deformed. Don't over tighten as the nitro tank is steel, ...
- Thu Mar 22, 2018 11:41 am
- Forum: TV Engineering
- Topic: Transmitter Nitrogen Issue
- Replies: 25
- Views: 458
Re: Transmitter Nitrogen Issue
Depends on the leak location. If the leak is where the nitrogen bottle connects to the regulator, the line MIGHT still hold some pressure.
- Thu Mar 22, 2018 10:37 am
- Forum: TV Engineering
- Topic: Transmitter Nitrogen Issue
- Replies: 25
- Views: 458
Re: Transmitter Nitrogen Issue
Get some leak detector fluid or soapy water. Spray the fittings on the waveguide, manifold and N tank. Look for bubbles.
If you can't find a leak on the ground, you'll have to have a tower crew check the line.
If you can't find a leak on the ground, you'll have to have a tower crew check the line.
- Thu Mar 22, 2018 9:47 am
- Forum: TV Engineering
- Topic: Replacement for HD-Star
- Replies: 6
- Views: 150
- Thu Mar 22, 2018 9:42 am
- Forum: TV Engineering
- Topic: Transmitter Nitrogen Issue
- Replies: 25
- Views: 458
Re: Transmitter Nitrogen Issue
What pressure is your regulator set to?
Have you tested for leaks at the tank?
Have you tested for leaks at the tank?
- Wed Mar 21, 2018 8:25 pm
- Forum: TV Engineering
- Topic: Replacement for HD-Star
- Replies: 6
- Views: 150
Re: Replacement for HD-Star
We've been using a Phabrix unit since we went HD. Test signals, embedded or AES audio, waveform/vector, eye/jitter.
Except for the battery petering out, it's been trouble-free.
Except for the battery petering out, it's been trouble-free.