Search found 354 matches

by grich
Thu May 17, 2018 10:13 am
Forum: Ask the Engineers
Topic: C-band TI
Replies: 21
Views: 412

Re: C-band TI

I had forgotten about the old SA and whatever the other SEDAT RX was. I have a station with at least one of those down converters still hanging on the wall. I think the other system was the Fairchild Sedat system. It was alot similar to the SA 9000right down to size and changeable receive modules. ...
by grich
Thu May 17, 2018 10:01 am
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 41
Views: 870

Re: RX-only C-band receive station registration, form 312

Classic Harris Delta Gain dish. I may have placed a manual for one in the recycle pile last week...might be recoverable if you need it. They aren't 2-degree compliant, so I was told. One of my clients still uses one for EWTN on Galaxy 19. We registered it last year (with a PCN). Another client demo...
by grich
Thu May 17, 2018 9:48 am
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 41
Views: 870

Re: RX-only C-band receive station registration, form 312

the FCC will use Google Earth to spot-check for the existence of the dish being registered. This will be an issue for the client I'm working on now, because GE is not updated to show an overhead view of the new studio building (and dish) built in 2016. You might want to check GE to see if your dish...
by grich
Wed May 16, 2018 10:03 am
Forum: Ask the Engineers
Topic: C-band TI
Replies: 21
Views: 412

Re: C-band TI

I had forgotten about the old SA and whatever the other SEDAT RX was. I have a station with at least one of those down converters still hanging on the wall. Later, Fairchild. Found one of those at the transmitter site hiding on a shelf last year. It's now in recycle-heaven. For several years, I use...
by grich
Tue May 08, 2018 7:28 am
Forum: TV Engineering
Topic: Silent spot
Replies: 13
Views: 540

Re: Silent spot

Or the Hollywood Exchange spot, that aired on NBC Network. Started out with bars and tone. That was a fun one when it aired, and because it was on network, we got no local indication it was going to air. I missed out on that one. If I had been on duty, I can imagine the swearing under my breath as ...
by grich
Thu May 03, 2018 10:24 am
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 41
Views: 870

Re: RX-only C-band receive station registration, form 312

I used the online form 312 last night for another client. It's not exactly the same as the PDF form, but with the provided samples, I slugged my way through it. I left it saved in the workspace for review by the attorney and online fee filing. I've filled out worse. Here's something you might want t...
by grich
Thu May 03, 2018 10:19 am
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 41
Views: 870

Re: RX-only C-band receive station registration, form 312

Classic Harris Delta Gain dish. I may have placed a manual for one in the recycle pile last week...might be recoverable if you need it. They aren't 2-degree compliant, so I was told. One of my clients still uses one for EWTN on Galaxy 19. We registered it last year (with a PCN). Another client demo...
by grich
Mon Apr 30, 2018 8:56 pm
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 41
Views: 870

Re: RX-only C-band receive station registration, form 312

Classic Harris Delta Gain dish. I may have placed a manual for one in the recycle pile last week...might be recoverable if you need it. They aren't 2-degree compliant, so I was told. One of my clients still uses one for EWTN on Galaxy 19. We registered it last year (with a PCN). Another client demo'...
by grich
Thu Apr 19, 2018 4:27 pm
Forum: Master Control
Topic: X-Y protocol??
Replies: 20
Views: 338

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...
by grich
Thu Apr 19, 2018 11:14 am
Forum: TV Engineering
Topic: TV tower collapse near Springfield MO
Replies: 1
Views: 149

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.
by grich
Wed Apr 11, 2018 10:33 am
Forum: FM Radio
Topic: FM3.5 odd problem
Replies: 9
Views: 339

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...
by grich
Mon Mar 26, 2018 10:58 pm
Forum: TV Engineering
Topic: Transmitter Nitrogen Issue
Replies: 25
Views: 507

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...
by grich
Mon Mar 26, 2018 1:11 pm
Forum: TV Engineering
Topic: Transmitter Nitrogen Issue
Replies: 25
Views: 507

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.
by grich
Mon Mar 26, 2018 1:08 pm
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 41
Views: 870

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 ...
by grich
Mon Mar 26, 2018 12:51 pm
Forum: TV Engineering
Topic: Transmitter Nitrogen Issue
Replies: 25
Views: 507

Re: Transmitter Nitrogen Issue

jbarth200 wrote:
Mon Mar 26, 2018 12:28 pm
...I'm thinking of coming out one night and turning my RF off and taking a look to see if any pressure windows are gone on the waveguide on the ground...
I'd do a bubble test first before going through all that trouble.

Also, is that tank chained to the wall?