Deep Thought wrote: ↑

Fri Mar 08, 2019 5:55 pm

I have a client with a small-town 500 watt AM DA on 790 in conductivity 8 land and the 2 mV/m extends 55 kilometers (34 miles). If it were running 5 KW it would be 94 kilometers (58 miles).

How high up would you have to put 250 watts in order to get that kind of coverage.... if you even can?

Now look at Section 74.1263: (b) An FM booster or FM translator station rebroadcasting the signal of an AM or FM primary station shall not be permitted to radiate during extended periods when signals of the primary station are not being retransmitted. Notwithstanding the foregoing, FM translators r...

I second the BW equipment. They've gone to a new display, so that issue has been dealt with. For the money, I'm not sure you can beat the feature set in the V3 versions. As noted, they are fully web-enabled, are able to email out RF and modulation-related alarms (assuming power is available), and in...

I have been encountering the same problem with DX10 PA's. Its a constant occurrence when you have an unstable power source ( power fluctuations ). Usually, only 1 MOSFET is burnt out and the fuse from the side where the RED led lit up. Busted MOSFET exhibits a shorted circuit reading in VOM tester....

Sonetimes a faulty fuse holder will cause the fuse to heat and fail. That would seem a rare occurrence. Matter of fact, in my experience, I recall only one case where I've lost a fuse due to a failed holder. That was the main fuse on a vintage Nautel Ampfet P400. It's still in daily service, btw...

Wondering if engnewbie found the problem and might let us in on the fix.... Over the years, my Gates-X transmitters have presented me a cornucopia of challenges and provided many hours of relaxing solitude, whilst contemplating each one ( :roll: ). However, blowing FETs, merely with modulation, has ...

The M-Audio "Audiophile 192" was a popular card. I bought a bunch of them and, since none has ever failed, still have them in use. You can find them on Ebay fairly cheap. They're PCI cards though, so you need a computer with the older sockets. SoundBlaster has newer cards that pass 192kHz. The Maria...

I use Stereo Tool in several installations, both AM and FM. If you need the program to produce stereo composite, you'll need a computer that can handle the physical size of a 192kHz audio card... either that or a 192kHz USB-interface. If you're in a competitive environment, that gives you the use of...

BSI has always been fairly conservative about how you use / connect their products. Years ago, when I first spotted them, I noted Simian's purported ability to run multiple instances of the software on a single computer. Asked how many the system would tolerate, they wouldn't give me a fixed answer....

I've only had 3 dual-mono systems under my care over the years. The concept was preferred by the engineer I followed at those stations. He (and George Marti) didn't have much use for composite at the time, though admittedly, it was early in those years and control of overshoots wasn't fully understo...

As far as I've been able to tell, there's no complete fix to this. Metered connections are ignored if the OS determines you're hardlined. The only compromise I've worked out is to set it to update only the stuff MS deems "necessary", put it in the mode that saves updates up and only hits you with it...

I'd worked up a fairly intense dislike for the Gates series of solid state boxes, but I'm starting to come around to the conclusion that it's just another rig with a personality. Get to know its needs and it seems to stay fairly content. Unfortunately, Gates Air's getting out of the AM business and ...

So... the hint here is whether you've ever tackled a project like this before. If not, you should start by finding someone who has, to either work with or take the project on. Not that the qualifications aren't here, but I think the job is beyond anyone here being able to walk you through it over th...

That's a good point.

Thanks, Jeff

Interesting.

Might have to add further division though. I need 2960 kHz in a "divide by two" application.

... unless the Nautel would allow the "divide-by-four", which they use at lower frequencies, to work.

Maybe?...