Search found 624 matches

by TPT
Sat Aug 19, 2017 6:01 pm
Forum: Radio Studio Engineering
Topic: Splitting coverage into markets
Replies: 14
Views: 351

Re: Splitting coverage into markets

Hmmm--you're right...seems like a product that has kind of disappeared.. Used to be a number of stations with radio reading services for the blind using 67 khz. equipment...wonder what they are using now? Bohn Broadcast has a used Marti SCG-10 generator--this is a good unit. BohnBroadcast.com Metros...
by TPT
Sat Aug 19, 2017 7:04 am
Forum: Radio Studio Engineering
Topic: Splitting coverage into markets
Replies: 14
Views: 351

Re: Splitting coverage into markets

Conventional SCA encoders/ decoders still widely available, using 67 Khz subcarrier--with DTMF tones for switching. Use the main automation system to fire a relay to send a DTMF tone on the 67 khz system, then use inexpensive SCA receivers at each translator site to pick up the tone to key a switche...
by TPT
Fri Aug 18, 2017 12:23 pm
Forum: Radio Studio Engineering
Topic: Splitting coverage into markets
Replies: 14
Views: 351

Re: Splitting coverage into markets

Another method (and yes-I see he's in New Zealand) is if you can get internet connections at the translator site--set=up a computer to insert & use touch-tone on an SCA to trigger the inserts.

But good translator sites usually being on top of a mountain, that may not work..
by TPT
Fri Aug 18, 2017 6:22 am
Forum: Radio Studio Engineering
Topic: Splitting coverage into markets
Replies: 14
Views: 351

Re: Splitting coverage into markets

For the most part, not legal--unless you are outside the U.S. You can insert one 30 second spot each hour, but that's it. Go read 47 CFR Section 74.1231, especially paragraph (f).
by TPT
Sun Aug 06, 2017 7:36 am
Forum: AM Radio
Topic: OMNIA.7AM
Replies: 3
Views: 271

Re: OMNIA.7AM

I assume some of the "non-studio" audio is incoming telephone calls. Get an $110 ART equalizer & hang it on the output of your hybrid. Makes a world of difference.
by TPT
Fri Aug 04, 2017 9:21 am
Forum: FM Radio
Topic: 6 KW Transmitter Ballpark price
Replies: 16
Views: 896

Re: 6 KW Transmitter Ballpark price

Contact Nautel. They can be competitive --compared to Harris/BE, not to some of the Italian makers.
by TPT
Thu Aug 03, 2017 5:41 pm
Forum: FM Radio
Topic: 6 KW Transmitter Ballpark price
Replies: 16
Views: 896

Re: 6 KW Transmitter Ballpark price

Haven't had experience with DB. Nautel will give you a 4 year warranty (last I saw) & their service is pretty good. Canadian company, but they have a shop in Bangor. I have two of them--a 10 NVlt & a VS2.5--on air, and will be putting a VS-300 back on for a translator shortly.
by TPT
Thu Aug 03, 2017 5:37 pm
Forum: FM Radio
Topic: EAS Antenna Issue
Replies: 13
Views: 710

Re: EAS Antenna Issue

Still, reality must intrude. My primary monitoring assignment is a Class IV 25 miles away....because the state plan has never been changed to reflect the real world. I just monitor the FM relay, a Class B. Another non-com station isn't even in the state plan (it's 900 watts, been on the air since 20...
by TPT
Tue Aug 01, 2017 4:27 pm
Forum: FM Radio
Topic: EAS Antenna Issue
Replies: 13
Views: 710

Re: EAS Antenna Issue

The Michigan EAS plan is under lock and key (password required--complete idiocy). I would call them or e-mail them and ask them to get you in touch with their state committee. Then ask for another monitoring assignment. First...yes you can complain about the translator, but why start a fight? Second...
by TPT
Fri Jul 28, 2017 1:31 pm
Forum: DXing
Topic: E-skip 7/27
Replies: 9
Views: 477

Re: E-skip 7/27

KSOC Gainesville, Texas over WWSW Pittsburgh in northern WV...otherwise nothing that unusual.
by TPT
Thu Jul 20, 2017 4:23 pm
Forum: Everything else
Topic: Mounting stuff to old concrete block wall?
Replies: 18
Views: 825

Re: Mounting stuff to old concrete block wall?

Twist-lock socket on a little 600 watt RF amplifier. Couldn't find the same brand plug--but I knew the current rating required. Picked different brand up--wouldn't fit--just slightly different. Ended up changing the socket.
by TPT
Thu Jul 20, 2017 8:24 am
Forum: Everything else
Topic: You need this
Replies: 22
Views: 921

Re: You need this

A floating, or always on UPS (which is probably what that "ac regenerator" is) does have its uses. Not at that price, though! Had a problem with sporadic pulses coming in the power line at one studio. Actually showed up in the FM band--listening on a car radio under the power lines...but not on AM (...
by TPT
Thu Jul 13, 2017 5:38 pm
Forum: Ask the Engineers
Topic: EAS Tones - Specification Source ?
Replies: 2
Views: 126

Re: EAS Tones - Specification Source ?

47 cfr Sections 11.31 through 11.35.

Go to ecfr.gov select Title 47 then select parts 0-19 then chapter 11 and you can find these sections.
by TPT
Thu Jul 13, 2017 6:11 am
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 149
Views: 7667

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

We have a pair of stations run off STORQ systems (which update from either satellite or internet), as well as several conventional satellite receivers for various programs (Delilah, Alice Cooper). About 6 months ago the old LNB started to fail, was bugging our DAWNCO splitter/DA so we put in an old ...
by TPT
Mon Jul 10, 2017 5:59 am
Forum: Radio Studio Engineering
Topic: No sound onair after fading in Outside Broadcast feed
Replies: 5
Views: 252

Re: No sound onair after fading in Outside Broadcast feed

Yes--sounds like a phase reversal. Understand in stereo broadcasting the audio fed into the transmitter consists of a mono main channel signal ( the Left and Right channel added in phase) and a Left and inverted Right (-R) signal fed into the stereo subcarrier. So... Let's assume the remote broadcas...