Search found 3266 matches

by Deep Thought
Mon Apr 23, 2018 12:15 am
Forum: Everything else
Topic: A bit of AM History
Replies: 4
Views: 158

Re: A bit of AM History

Heh...the paint on those things would allow you to clean off the markers without even leaving a shadow.
by Deep Thought
Mon Apr 23, 2018 12:12 am
Forum: Internet Streaming
Topic: Getting Through Windows Firewall
Replies: 8
Views: 275

Re: Getting Through Windows Firewall

All of the Comcast equipment I've seen is easily set up for NAT by the user. What is the issue with this one?
by Deep Thought
Mon Apr 09, 2018 7:00 pm
Forum: FM Radio
Topic: Omnia FM HOT OS
Replies: 6
Views: 212

Re: Omnia FM HOT OS

All the Telos kids are in Las Vegas at the NAB show right now so don't expect a quick reply.
by Deep Thought
Sat Mar 31, 2018 1:38 pm
Forum: Everything else
Topic: PPM Encoding
Replies: 4
Views: 124

Re: PPM Encoding

If they don't buy the book they won't be in the publicly-released numbers. If you didn't buy the book (or get an illicit full copy of it from someone) then you won't see them either since the full survey results are only released to subscribers. If you are looking at a full report then they would be...
by Deep Thought
Fri Mar 30, 2018 11:29 pm
Forum: Everything else
Topic: PPM Encoding
Replies: 4
Views: 124

Re: PPM Encoding

Is it in a PPM market?
by Deep Thought
Sat Mar 24, 2018 4:56 pm
Forum: AM Radio
Topic: Audio Bandwidth of an AM Broadcast Station
Replies: 19
Views: 1188

Re: Audio Bandwidth of an AM Broadcast Station

kkiddkkidd wrote:
Sat Mar 24, 2018 10:30 am
Less mud and grunge from overdriving the highs.
And less crap coming back to the transmitter causing intermodulation products 30 KHz away.
by Deep Thought
Sat Mar 24, 2018 4:55 pm
Forum: AM Radio
Topic: Audio Bandwidth of an AM Broadcast Station
Replies: 19
Views: 1188

Re: Audio Bandwidth of an AM Broadcast Station

One of my stations is 1.1:1 flat out to 15Khz and 1.15:1 to 25Khz. How does it pass the required annual NRSC measurement? Probably pretty nicely since the antenna system isn't screwing with the sidebands or reflecting sideband power back to the transmitter. The flatter the antenna modulation bandwi...
by Deep Thought
Sat Mar 24, 2018 4:51 pm
Forum: AM Radio
Topic: Dealing with mixing products
Replies: 10
Views: 1303

Re: Dealing with mixing products

Those filters consist of about $3,000 in parts if you pay full marked-up retail, $1,000 if you shop around. The cabinets tend to be one-size-fits-all affairs which are cheaper for KTL (and others) to make than customs for each job. If you can put the parts into existing ATU or phasor cabinets it is ...
by Deep Thought
Fri Mar 23, 2018 4:01 pm
Forum: TV Engineering
Topic: Transmitter Nitrogen Issue
Replies: 25
Views: 449

Re: Transmitter Nitrogen Issue

jbarth200 wrote:
Fri Mar 23, 2018 2:26 pm
bubbles it is.
One place to find leak detection fluid is in the plumbing section of your favorite hardware purveyor. It'll be next to the black pipe and gas fittings. This stuff is specifically made to help you find leaks.
by Deep Thought
Wed Mar 21, 2018 3:29 pm
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 27
Views: 440

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

kkiddkkidd wrote:
Wed Mar 21, 2018 2:11 pm
I am contending that it is more like 15,000
And don't forget a whole bunch of NCE-FM reserved band translators fed via these things.
by Deep Thought
Wed Mar 21, 2018 1:20 pm
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 27
Views: 440

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

Thanks. That's what I was wondering about. My client was quoted $1595 to file *one* RX dish registration by a name everyone here would recognize.
by Deep Thought
Wed Mar 21, 2018 10:11 am
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 27
Views: 440

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

I've been asked by a radio client to help them with registration of their (many) C-band satellite receive dishes in light of the potential "sharing" (yeah, right) of the band with terrestrial land mobile users. As usual the FCC has made what should be a simple process impossible for mere mortals to ...
by Deep Thought
Tue Mar 20, 2018 8:41 pm
Forum: AM Radio
Topic: GatesAir suspends AM TX sales (Radio World)
Replies: 25
Views: 761

Re: GatesAir suspends AM TX sales (Radio World)

Or you could buy from a company that still supports everything they've made, like brand N or B. GatesAir/Harris has a bad habit of orphaning transmitters when they get bored with them. The SX/Gates series are still out there and parts are available from other than GatesAir. They bet the farm on the ...
by Deep Thought
Tue Mar 20, 2018 5:40 pm
Forum: FM Radio
Topic: band pass filter recommendations
Replies: 12
Views: 262

Re: band pass filter recommendations

The transmitters will be new--VS1 and a 1 kw Gates Air Flexiva. Neither of those have any tuned circuits on the output so expect some huge cross products. It doesn't matter what the power levels are with that close of a spacing. You'll have to make -71.8 dB minimum which is going to be tough withou...
by Deep Thought
Tue Mar 20, 2018 3:29 pm
Forum: FM Radio
Topic: band pass filter recommendations
Replies: 12
Views: 262

Re: band pass filter recommendations

I saw the Kathrein/Scala filters at NAB a couple years back. They are made by another company but I was impressed by the quality and price point(s). The major issue here is the 400 KHz spacing. None of the commercially available filters will work at this tight of a channel spacing, so whatever is us...