Search found 607 matches

by TPT
Sat Jun 24, 2017 8:59 am
Forum: Radio Studio Engineering
Topic: EAS Issue
Replies: 3
Views: 49

Re: EAS Issue

With two stations and one EAS box, we use the Broadcast Tools switchers for EAS alerts. The Sage, (in this case) sends out a closure that switches a pair of 2X1 BT switchers from the program lines to the audio output of the Sage. The EOM switches the program lines back on. Only problem I've had is w...
by TPT
Thu Jun 22, 2017 5:51 am
Forum: FM Radio
Topic: RBDS Phase
Replies: 7
Views: 397

Re: RBDS Phase

Why? The RDS subcarrier is at 57 khz (3X19)--but why should the relative phase of the pilot and RDS matter?

Have two Nautels with internally generated RDS, both fed from external composite sources (Omnia 3T locally for one, Omnia One through a 25 mile STL path for the other. Never saw a problem.
by TPT
Thu Jun 08, 2017 4:30 pm
Forum: AM Radio
Topic: Burk ARC-16 ESI Card
Replies: 7
Views: 304

Re: Burk ARC-16 ESI Card

Have two sites using a "home phone" cell unit and a Sine with success. These are Verizon cell phones with a telephone jack and external antenna. Interestingly, the A.T. & T version doesn't work--Sine won't answer.
by TPT
Thu Jun 08, 2017 6:54 am
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 135
Views: 6126

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

Factory. It's kind of a dense plastic, but after a number of years of sun, wind, ice, and more sun it got a bit brittle.
by TPT
Wed Jun 07, 2017 3:21 pm
Forum: FCC Discussion
Topic: translator window
Replies: 2
Views: 141

translator window

So you are in a small market with just a few stations...and you thought, why pay big $$$ to buy a translator when I can wait until next year and just apply for one? FCC got you. The next translator window is only a week--July 26th to the 2nd of August. It is first come/first served, but if you are M...
by TPT
Wed Jun 07, 2017 6:30 am
Forum: Everything else
Topic: RECYCLE OLD SAT DISHES
Replies: 4
Views: 220

Re: RECYCLE OLD SAT DISHES

I'll think I'll just flip mine on its back, seal it well, and let it fill up with water.

Bird bath for the buzzards.
by TPT
Tue Jun 06, 2017 5:46 pm
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 135
Views: 6126

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

Why I replaced my Comtech--our LNB mount is also split where the set screw runs. We glued it, so it is stable at the moment, but no sense in fighting this on a 35 year old dish. I understand there is a replacement available--for $1K.
by TPT
Tue Jun 06, 2017 5:14 am
Forum: FM Radio
Topic: Translator Clearance...
Replies: 5
Views: 349

Re: Translator Clearance...

Look at 74.1204---The translator must protect WBRF's 60 dbu contour against any overlap of the translator's (50/10) 40 dbu contour. Two tools to play with: https://www.fcc.gov/media/radio/haat-calculator https://www.fcc.gov/media/radio/fm-and-tv-propagation-curves Of course, you can always pull up t...
by TPT
Fri Jun 02, 2017 6:04 am
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 135
Views: 6126

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

We have a 1984 vintage Comtech, so decided to buy a new dish. Got a 12' DH dish in March, been sitting in the garage while we got around to building the pole. Wednesday four of us tried to haul the mounting ring (not the dish--which is made of four aluminum petals--but just the iron mounting ring). ...
by TPT
Tue May 23, 2017 6:23 am
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 135
Views: 6126

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

We had an MCI tower behind our dish giving us interference. Two solutions were tried: First, we put up a screen of hardware cloth behind the dish, which helped on many transponders. Hardware cloth (a Midwestern term) looks like heavy window screen material, made of metal--folks use it to keep rabbit...
by TPT
Sun May 21, 2017 3:22 pm
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 135
Views: 6126

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

Old trick--if you have a spare LNB & either power out of S/A or can free up a receiver just to power it (with a T & DC block): Take the LNB & swing it around while looking at the S/A See if you see a signal. You may have something generating TI--but just on the transponder channel the Orbital receiv...
by TPT
Tue May 16, 2017 6:08 am
Forum: AM Radio
Topic: Mutually Exclusiove Applications for AM Translators
Replies: 3
Views: 226

Re: Mutually Exclusiove Applications for AM Translators

In the last 250 mile window, one of the translators I sold went to Richmond, Va. On their first try, they were MX to another move-in. So we (buyer, my company and buyer's consulting engineer) quickly filed an amended application, which went through. The 250 mile window operated under the legal "fict...
by TPT
Sat May 13, 2017 8:55 am
Forum: Radio Studio Engineering
Topic: RM105 Desk
Replies: 4
Views: 179

Re: RM105 Desk

Soundcraft may also be using "auxiliary" feed in the sense of an "audition" feed.
by TPT
Sat May 13, 2017 6:01 am
Forum: Radio Studio Engineering
Topic: RM105 Desk
Replies: 4
Views: 179

Re: RM105 Desk

A quick glance at this console on-line...I suspect it may be hard wired this way. Most broadcast consoles provide an audition or auxiliary feed just for the purpose you describe--laying down a voice track while the main programing runs, or setting up the mix-minus feed to a hybrid. However, most req...