Search found 107 matches

by Slab Bulkhead
Tue Dec 12, 2017 3:20 pm
Forum: From the Trenches
Topic: The high leg
Replies: 9
Views: 2306

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: 766

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: 871

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: 11450

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: 545

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: 687

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...
by Slab Bulkhead
Thu Oct 05, 2017 9:01 am
Forum: FM Radio
Topic: LPFM Antenna Recommendations
Replies: 9
Views: 687

Re: LPFM Antenna Recommendations

Interesting to hear that some folks are using the LPX series on translators. It seems like overkill for the power level, but I do like the idea of a sealed antenna. Does it need to be pressurized? This station is near the middle of the band at 97.3, so a "broadband" antenna would probably work. Howe...
by Slab Bulkhead
Wed Oct 04, 2017 9:16 am
Forum: FM Radio
Topic: LPFM Antenna Recommendations
Replies: 9
Views: 687

LPFM Antenna Recommendations

An LP I take care of recently had the antenna mounting scheme changed to get some separation between the bays and the tower face. In the course of this, the bays were lowered to the ground and I had a chance to inspect them after ~4 years out in the elements. The antenna is an ERI 100A model. One ba...
by Slab Bulkhead
Wed Oct 04, 2017 8:58 am
Forum: Everything else
Topic: ETRS Reporting Forms 2 & 3 09/27/2017
Replies: 7
Views: 479

Re: ETRS Reporting Forms 2 & 3 09/27/2017

It seemed like a total crapshoot for me. CORES wouldn't work in Firefox (had to reset password), then ETRS wouldn't work in IE or Edge.
by Slab Bulkhead
Sat Aug 05, 2017 11:02 am
Forum: FM Radio
Topic: EAS Antenna Issue
Replies: 13
Views: 1125

Re: EAS Antenna Issue

Still, reality must intrude. My primary monitoring assignment is a Class IV 25 miles away....because the state plan has never been changed to reflect the real world. I just monitor the FM relay, a Class B. Another non-com station isn't even in the state plan (it's 900 watts, been on the air since 2...
by Slab Bulkhead
Tue Mar 14, 2017 9:31 pm
Forum: STL Engineering
Topic: Harris CD Link
Replies: 12
Views: 1501

Re: Harris CD Link

3. We removed both the RX and TX to be evaluated by Harris but quickly learned that they are now charging $2400 EACH flat rate repair. The owner immediately said that he would buy a new composite pair before spending $5k on repairing these. Wow. Just, wow... :shock: And they wonder why no one wants...
by Slab Bulkhead
Mon Mar 06, 2017 9:26 am
Forum: STL Engineering
Topic: Starlink LAN
Replies: 18
Views: 1592

Re: Starlink LAN

I am fascinated by this as well. How did you go about getting the Ubiquiti radios to work without cross polarization? I thought the way Ubiquiti did duplex was to send and receive on the same frequency but on the other polarity (ie: TX-Horizontal, RX-Vertical). I would love to buy some cheap Ubiqui...
by Slab Bulkhead
Sat Feb 25, 2017 10:03 pm
Forum: STL Engineering
Topic: Starlink LAN
Replies: 18
Views: 1592

Re: Starlink LAN

Not here...we diplexed in some Ubiquiti 900 MHz radios for a 2-way data connection. RDS and remote control is all on that. The main audio is still on the Starlink.
by Slab Bulkhead
Wed Jan 25, 2017 1:33 pm
Forum: Everything else
Topic: NPR Story Says Towers Kill Birds
Replies: 14
Views: 1325

Re: NPR Story Says Towers Kill Birds

Of the six sites I've been at regularly, I've never seen a dead bird. Just dead rodents in traps and a snake skin or two.
by Slab Bulkhead
Thu Jan 19, 2017 9:30 am
Forum: Ask the Engineers
Topic: CenturyLink Question
Replies: 8
Views: 997

Re: CenturyLink Question

Sure enough, according to the repair man who came out, it was rodent damage. Squirrels got into a pedestal somewhere and chewed wires. He also said the insulation on the lines on the street is in terrible shape. I've told the owner that even though we got this fixed, it's not going to fix the packet...