Search found 661 matches

by TPT
Wed Nov 15, 2017 8:00 pm
Forum: Radio Studio Engineering
Topic: Broadcast Electronics Console Model 5S150
Replies: 3
Views: 95

Re: Broadcast Electronics Console Model 5S150

I have a PDF for the 100 and 200 series consoles, which includes the 5BES100. Don't know if this is the same vintage as yours, but you can PM me and I'll e-mail the PDF.
by TPT
Tue Nov 14, 2017 7:25 am
Forum: Radio Automation Systems
Topic: STORQ Users--Downgrade coming
Replies: 12
Views: 342

Re: STORQ Users--Downgrade coming

Apparently, if you get just the new I-pump you will still need a downstream automation system if you do other net programming. Don't forget that would include sports--like the Steelers net we carry.
by TPT
Tue Nov 14, 2017 7:22 am
Forum: Radio Studio Engineering
Topic: GR EAS-1/CAP-DEC-1 issues
Replies: 9
Views: 262

Re: GR EAS-1/CAP-DEC-1 issues

Yesterday's weekly CAP test apparently failed when it was first sent around 11--some folks reporting strange error messages. Test was later resent around 2:00 Eastern, seemed OK that time.
by TPT
Sun Nov 12, 2017 7:26 am
Forum: Ask the Engineers
Topic: Convert to LEDs, or leave 110v?
Replies: 7
Views: 234

Re: Convert to LEDs, or leave 110v?

Aha. You could stick an LED bulb in it, or cruise Jameco for deals on big LED's. The LED bulb would cost you oh $3 or $4, to get as much light from a couple of LED's--probably more. Plus time.
by TPT
Sat Nov 11, 2017 4:53 pm
Forum: Ask the Engineers
Topic: Removed ye old Transmitter Monitor/Control
Replies: 3
Views: 150

Re: Removed ye old Transmitter Monitor/Control

Pretty, but if you go to Pira.CZ, you can download a free program that will e-mail you when there is silence. Get an old computer & a cheap radio, plug it into the sound card.
by TPT
Sat Nov 11, 2017 4:50 pm
Forum: Ask the Engineers
Topic: Convert to LEDs, or leave 110v?
Replies: 7
Views: 234

Re: Convert to LEDs, or leave 110v?

Uh, what is it and where is it?
by TPT
Fri Nov 10, 2017 7:00 am
Forum: FM Radio
Topic: FM range question - coastal mountainous terrain
Replies: 22
Views: 715

Re: FM range question - coastal mountainous terrain

Another problem--get back up those ridges (some of the roads show on Google streetview)--and you have a nice view of the ocean, but no electric.
by TPT
Thu Nov 09, 2017 5:13 pm
Forum: FM Radio
Topic: FM range question - coastal mountainous terrain
Replies: 22
Views: 715

Re: FM range question - coastal mountainous terrain

Some links to play with, you need to take the results with several grains of salt: https://www.fcc.gov/media/radio/haat-calculator (use the globar terrain data base) https://www.fcc.gov/media/radio/fm-and-tv-propagation-curves The first calculator, when you enter the height above sea level (in meter...
by TPT
Thu Nov 09, 2017 4:44 pm
Forum: FM Radio
Topic: FM range question - coastal mountainous terrain
Replies: 22
Views: 715

Re: FM range question - coastal mountainous terrain

Google Earth sayeth thus:

27-47-24 N 15-42-59 W, 504' AMSL at the end of the bar
by TPT
Thu Nov 09, 2017 4:36 pm
Forum: FM Radio
Topic: FM range question - coastal mountainous terrain
Replies: 22
Views: 715

Re: FM range question - coastal mountainous terrain

Load up Google Earth--has lots of handy tools & you can get coordinates easily if you can find your location.
by TPT
Thu Nov 09, 2017 7:18 am
Forum: FM Radio
Topic: FM range question - coastal mountainous terrain
Replies: 22
Views: 715

Re: FM range question - coastal mountainous terrain

Antennas: Those are circularly polarized antennas, dividing power between the horizontal and vertical plane. Two bays is usually unity gain. So, whatever power coming out of the end of the coax is what you are radiating. You loose some power in the coaxial cable--so your effective radiated power is ...
by TPT
Wed Nov 08, 2017 6:32 pm
Forum: FM Radio
Topic: OMB PTX-20 test and repair help required
Replies: 15
Views: 418

Re: OMB PTX-20 test and repair help required

Ah--Gran Canaria. I see the problem! A losing battle with geography. (Think Oahu--the islands are about the same size.)
600 square mile island with a 6,000 foot mountain in the middle.
by TPT
Wed Nov 08, 2017 6:20 pm
Forum: FM Radio
Topic: OMB PTX-20 test and repair help required
Replies: 15
Views: 418

Re: OMB PTX-20 test and repair help required

Other factors: Type of antenna, actual radiated power (as opposed to the amount being fed into the coaxial cable), and, as mentioned--height of the antenna. In FM height is (almost) everything.
by TPT
Tue Nov 07, 2017 6:02 pm
Forum: On-Air Studios
Topic: Help making an On-Air & Mic Light controller
Replies: 1
Views: 74

Re: Help making an On-Air & Mic Light controller

First question is what is going to control the controller? Mixing console? Or are you using a mixer (like a PA mixer) that doesn't provide tally outputs? For a simple circuit I would use a 4 pole relay like this: Uxcell 4PDT Electromagnetic Power Relay with Socket Base, DC12V Coil (search Amazon for...
by TPT
Tue Nov 07, 2017 7:04 am
Forum: FM Radio
Topic: OMB PTX-20 test and repair help required
Replies: 15
Views: 418

Re: OMB PTX-20 test and repair help required

Poor thing looks like it got very wet. OK. Understand that this is a 50 watt transmitter--the term "exciter" conveys that it is normally used to drive or "excite" a larger power amplifier, but the unit produces a complete FM signal at its rated power. So the first thing you need is a dummy load, or ...