100% in the digital IBOC realm is all ones. If you try to go over that really *really* bad things happen in the codec. I suspect that anything you see over 100% on the "HD" audio display is overshoots in the decoding. I'll have to scan around the Chicago FM band with my M2 and see if I can find any ...

I wonder what the FCC uses, by the way, when they investigate overmodulation complaints? Overmodulation complaints? I don't think I have seen a station cited for overmodulation in the last 30 years. They do have nifty equipment...a modified spectrum analyzer/SDR which is also used for interference ...

Our 1982-vintage UPI and NBC audio dish was 70 MHz second IF. Was kinda fun to tune around on the SCPC carriers with a comms receiver and listen in back then.

Deep Thought should have current info, and he should respond soon with "the path to enlightenment". :roll: Not sure how enlightening this will be since it has already been answered, but: yes in an emergency, no on a primary basis on "the mainland". The four frequencies at each "end" of the two band...

This is for a different model but I would imagine they use the same frequency synthesizer for most if not all of these. If your switch bank looks like this it should work.

RGORJANCE wrote: ↑

Sat Apr 28, 2018 6:20 am

They sold reasonably well in the international market, but pretty much bombed in the US.

I seem to recall they used vapor phase cooling in their UHF transmitters back in the 1970s.

Glad I"m in Radio....... Though I suppose if a client wanted to buy 30-60 seconds of silence, we'd probably sell it to them..... I have a client who bought 60 minutes of "silence" in the middle of the night on a distant high-power co-channel station so we could take some field measurements at night...

I tried both (31-1965 is the SKU).

One of the things I really miss about the "old" Radio Shack was their "faxback" service for things like this, as well as the local repair depot which was about 10 miles from my office. You could get pretty much any documentation you needed for anything they sold just for the asking. I didn't have an...

Heh...the paint on those things would allow you to clean off the markers without even leaving a shadow.

All of the Comcast equipment I've seen is easily set up for NAT by the user. What is the issue with this one?

All the Telos kids are in Las Vegas at the NAB show right now so don't expect a quick reply.

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...

Is it in a PPM market?

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.