Search found 116 matches

by Slab Bulkhead
Sun Sep 02, 2018 7:58 pm
Forum: Radio Studio Engineering
Topic: Weird satellite problem
Replies: 9
Views: 312

Re: Weird satellite problem

Have you looked at the satellite downlink on a Spectrum analyzer to see what it looks like? It's not unusual for LNBs to start "spiking" across the band, and you could have an issue where one of those spikes are near your desired carrier. Could also be cross-pole. Your cross pole could be a touch o...
by Slab Bulkhead
Sun Sep 02, 2018 7:47 pm
Forum: AM Radio
Topic: BE AM1A Question
Replies: 3
Views: 405

Re: BE AM1A Question

So far, so good after yet another module swap. This one was "factory repaired" too, although it still wouldn't surprise me if something else is wrong somewhere. The owner is tighter than a drum and the poor transmitter gets abused because he's too cheap to pay for an A/C unit.
by Slab Bulkhead
Thu Aug 30, 2018 7:50 am
Forum: Radio Studio Engineering
Topic: Weird satellite problem
Replies: 9
Views: 312

Weird satellite problem

I've run into an odd problem with a satellite dish. Station has XDS receivers for Premiere and Learfield. The Learfield receiver is working fine, Premiere stopped working. Ops guy requested a new box from Premiere, they shipped it out, still no signal. He's tried all sorts of swap outs to rule out c...
by Slab Bulkhead
Mon Aug 27, 2018 10:33 am
Forum: AM Radio
Topic: BE AM1A Question
Replies: 3
Views: 405

BE AM1A Question

I have an AM1A here that recently suffered a partial power module failure. Exchanged the module back to the factory for a good one, and got back to full power. Now it's running around 600w instead of the normal 1080 (directional station). The ops guy ran out to the site and told me that there were n...
by Slab Bulkhead
Wed Jan 24, 2018 4:06 pm
Forum: General Computers
Topic: USB Keyboards/Mice for Studio
Replies: 5
Views: 645

USB Keyboards/Mice for Studio

Any suggestions for good USB keyboards and mice that work well in a studio application and stand up to jock abuse?
by Slab Bulkhead
Fri Jan 12, 2018 10:33 am
Forum: FM Radio
Topic: Blue tooth mixer and high school games
Replies: 22
Views: 1836

Re: Blue tooth mixer and high school games

We try to avoid cell calls for ball game feeds as much as possible. Typically we use 4G IP with a smartphone tethered to an old router that I flashed with openWRT, and then connect a Tieline Commander to the router via the Ethernet port. Since we are in a fairly good area for cell coverage, we usual...
by Slab Bulkhead
Thu Jan 04, 2018 3:10 pm
Forum: AM Radio
Topic: BE AM-1A Power Supply
Replies: 6
Views: 610

Re: BE AM-1A Power Supply

If you cycle the front panel breaker on and off quickly a few times the bad supply will sometimes restart and run until the power blinks again. I have had about 50% success with this. I now keep a spare PS in my truck (one of the few spare parts that I carry these days other than a spare LNB). Inte...
by Slab Bulkhead
Tue Jan 02, 2018 12:11 pm
Forum: AM Radio
Topic: BE AM-1A Power Supply
Replies: 6
Views: 610

Re: BE AM-1A Power Supply

Ya sure, you betcha! That's the one. Look at it carefully and you should see a couple of screws on the metal cover. These screws go into mretallic standoffs. Pull those screws from INSIDE the controller enclosure, not outside. That will reveal the power supply in all it's "living color". The rest i...
by Slab Bulkhead
Tue Jan 02, 2018 8:40 am
Forum: AM Radio
Topic: BE AM-1A Power Supply
Replies: 6
Views: 610

BE AM-1A Power Supply

I have a sick AM-1A that has the infamous flashing light syndrome on the controller. I'm familiar with the cause and the replacement off-the-shelf supply (or poaching of Starguide supply) but since I have not done one of these replacements before, wanted to confirm that this supply is the one locate...
by Slab Bulkhead
Tue Dec 12, 2017 3:20 pm
Forum: From the Trenches
Topic: The high leg
Replies: 14
Views: 3701

Re: The high leg

I saw someone tell a story on one of these engineering groups about an electrician wiring the outlet for a break room Coke machine to the high leg...with the expected results. I seem to remember here at the office they had to stop an electrician from tapping into the lighting circuit since it was 277.
by Slab Bulkhead
Thu Nov 16, 2017 3:02 pm
Forum: STL Engineering
Topic: Women Hearing Distorsion on Station After STL realign
Replies: 20
Views: 1502

Re: Women Hearing Distorsion on Station After STL realign

That does seem very low. If I am remembering correctly, the manual says it wants to see 40 dBuV for good mono performance, and 50 dBuV for stereo. The LPFM I take care of used to run one of those, and I think we usually saw > 60 on it, but it was for a path of just under 2.5 miles. I assume you've t...
by Slab Bulkhead
Tue Oct 24, 2017 7:25 am
Forum: Ask the Engineers
Topic: Wanna Play "Guess What's in the Grey Box?"
Replies: 16
Views: 1564

Re: Wanna Play "Guess What's in the Grey Box?"

TFT EAS 911s do not have audio in/out. That's in a separate box, either TFT's or your own home brew. So perhaps this is that. The LPFM I take care of used to have a home brewed interrupt in a brown metal box for this very reason. The TFT 911D they had didn't come with an interrupt relay. It was ret...
by Slab Bulkhead
Mon Oct 16, 2017 8:18 am
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 153
Views: 19659

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

I'll have to ask the one place I moved what it does. I was able to get about 11.5 on Westwood and a screaming >15 on Premiere after the move. Their Westwood was doing a 9.3 before moving, I think there may have been a tree slowly growing into the view of the dish, so the move was probably a good thi...
by Slab Bulkhead
Mon Oct 16, 2017 8:14 am
Forum: TV Engineering
Topic: More Bad Sports Audio on Fox
Replies: 9
Views: 1102

Re: More Bad Sports Audio on Fox

I agree on the Shure mixers. I used to carry a 267 mixer for high school games. Currently I use a homebrewed rack built around a Shure SCM810, which also has the switchable limiter and remote on/off/mute logic capability, so I was able to build some handy cough buttons into the front panel next to t...
by Slab Bulkhead
Fri Oct 13, 2017 7:35 am
Forum: FM Radio
Topic: LPFM Antenna Recommendations
Replies: 9
Views: 1109

Re: LPFM Antenna Recommendations

I called ERI with a few questions on the 100A and did learn a good tidbit that I thought might be worth sharing. If you do get a cracked tip due to water, lightning, or whatever, here's the replacement. https://www.menards.com/main/plumbing/rough-plumbing/pipe-tubing-hoses-fittings-accessories/fitti...