Search found 98 matches

by Slab Bulkhead
Sat Aug 05, 2017 11:02 am
Forum: FM Radio
Topic: EAS Antenna Issue
Replies: 13
Views: 751

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: 1026

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: 1045

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: 1045

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: 933

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: 746

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...
by Slab Bulkhead
Thu Jan 19, 2017 9:24 am
Forum: STL Engineering
Topic: Barix levels
Replies: 14
Views: 1166

Re: Barix levels

The AM translators are on Tieline Bridge-Its using their "music" algorithms. They sound awful, IMO, worse on music than speech ironically, and sometimes break into chattering briefly with packet drops. Usually not longer than a syllable or two. I would like to try cramming uncompressed PCM down tho...
by Slab Bulkhead
Thu Jan 12, 2017 10:01 am
Forum: Ask the Engineers
Topic: CenturyLink Question
Replies: 8
Views: 746

Re: CenturyLink Question

Sure enough, we got a good rain and the DSL connection tanked again. I'm sure it's decrepit outside plant that they will do nothing to fix. Also, they seem to be short on backhaul capacity because our IP codec gets packet loss between 7 and 12 PM each night. So we have two problems that they will no...
by Slab Bulkhead
Thu Jan 05, 2017 12:49 pm
Forum: Ask the Engineers
Topic: CenturyLink Question
Replies: 8
Views: 746

CenturyLink Question

Anyone else here have the misfortune of having a site where the telco is CenturyLink? Got any backdoor numbers for Tier 3 support/repair? I have an AM/FM translator site using a Bridge-It for IP feed over DSL. It rained for a day and a half, the DSL downstream SNR dropped by 8 dB, the modem began to...
by Slab Bulkhead
Thu Jan 05, 2017 12:40 pm
Forum: FM Radio
Topic: Translator ID Options
Replies: 10
Views: 697

Re: Translator ID Options

ncradioeng wrote:There are specific time windows in the translator ID rules for the three aural IDs.
I think (but am not completely certain) that they are 7:00-9:00 AM, 12:55-1:05 PM, and 4:00-6:00 PM.
by Slab Bulkhead
Mon Dec 05, 2016 9:00 am
Forum: Ask the Engineers
Topic: TFT 450 Mhz "STL" receiver
Replies: 2
Views: 352

Re: TFT 450 Mhz "STL" receiver

The models for the TFT "Marti" style equipment were 8888 and 8889, I can't remember which end was which. They had DIP switch programmable frequency selection for the 2 channels and the bandwidth on the TX and RX units could be selected to fit 25, 50, or 100 kHz channels. Had one at an LPFM but it ha...
by Slab Bulkhead
Tue Nov 08, 2016 7:54 am
Forum: FM Radio
Topic: Theory Discussion: Circular Polarization Vs. Vertical Polarization
Replies: 46
Views: 2087

Re: Theory Discussion: Circular Polarization Vs. Vertical Polarization

True, I even think some of them have the boosters also licensed as aux facilities or have occasionally had STA's that requested the booster be treated as an aux.
by Slab Bulkhead
Mon Nov 07, 2016 1:02 pm
Forum: FM Radio
Topic: Theory Discussion: Circular Polarization Vs. Vertical Polarization
Replies: 46
Views: 2087

Re: Theory Discussion: Circular Polarization Vs. Vertical Polarization

Here's what an RF friend of mine thinks: "Circular polarization is probably not the best idea for FM. Broadcasters use circular polarization because they are limited in the amount of power they can broadcast with. In some states, they are limited to 100kW on an open channel- so they usually broadca...
by Slab Bulkhead
Fri Oct 21, 2016 11:49 am
Forum: Radio Automation Systems
Topic: Simian & Windows Updates
Replies: 4
Views: 344

Re: Simian & Windows Updates

Windows 10 on an automation computer would scare the snot out of me, unless I had it blocked from all internet access.
by Slab Bulkhead
Mon Oct 10, 2016 8:28 am
Forum: Everything else
Topic: Wildlife, towers, and security cameras
Replies: 10
Views: 656

Re: Wildlife, towers, and security cameras

I need to set one of these up in my back yard. What kind of camera is that?