Search found 244 matches

by Bill DeFelice
Thu Jul 26, 2018 1:10 pm
Forum: Everything else
Topic: WKRP
Replies: 16
Views: 462

Re: WKRP

The beauty of it is that it is so typical of how radio was in the 70’s. Not real far from the truth. 70's? I worked at a station in the mid-late 1980's where they could have scripts for the next 10 seasons! I note that all the WKRPs in Dave’s database were named after the show first came on. Reckon...
by Bill DeFelice
Tue Jul 03, 2018 4:30 am
Forum: AM Radio
Topic: Anyone Home?
Replies: 13
Views: 493

Re: Anyone Home?

It's even more hilarious when I hear the local AM carry a Yankees game where there's dead carrier throughout the game except for the commercials, which fire off and play fine. Considering this particular station is owned by a major group who recently shed a billion off their debt you'd think they'd ...
by Bill DeFelice
Sat Jun 30, 2018 8:58 am
Forum: FM Radio
Topic: Ecreso vs. BW for Translator
Replies: 11
Views: 437

Re: Ecreso vs. BW for Translator

I've used a couple of the BW transmitters and experienced two problems. I had the final output go soft, not making maximum power output after a year or two, and the backlight on the transmitter had gone dim. It's used as a backup for the backup so it's not a pressing matter, especially back before t...
by Bill DeFelice
Fri Jun 29, 2018 3:23 pm
Forum: Everything else
Topic: Name that mic
Replies: 5
Views: 225

Re: Name that mic

Looks like an EV 666 to me (if that's a clip I see holding them). Had a few of them at the high school FM station I started out at back in the mid 1970's.
by Bill DeFelice
Sun Jun 10, 2018 8:49 am
Forum: AM Radio
Topic: AM Tuning Unit Design Software
Replies: 9
Views: 382

Re: AM Tuning Unit Design Software

I don't know why it took me this long to think about it, but how about loading Win7 or something older in a virtual machine using VirtualBox? I do that when I need software that doesn't run natively under Win10.
by Bill DeFelice
Thu May 31, 2018 7:48 am
Forum: Everything else
Topic: Tomato Soup Incident
Replies: 22
Views: 580

Re: Tomato Soup Incident

I was meaning to share this as it was told by a technical scientist I'm acquainted with: A user had apparent spilled some portion of a cup of coffee into a laptop they had been working on. The scientist picked it up and started walking to their lab hurriedly due to the spill. Unbeknownst to him one ...
by Bill DeFelice
Fri May 25, 2018 6:30 pm
Forum: Everything else
Topic: Tomato Soup Incident
Replies: 22
Views: 580

Re: Tomato Soup Incident

I wonder if the soup is/was less toxic to the PC board than the incident I heard, which was when a jock dumped a large orange juice into a PR&E BMX console. Took out the entire backplane and then some. Luckily it wasn't at any of my stations.
by Bill DeFelice
Fri May 18, 2018 2:57 pm
Forum: Digital Radio
Topic: Monitoring, Day Sequerra Board Repair
Replies: 7
Views: 509

Re: Monitoring, Day Sequerra Board Repair

Mind you, this comes from someone who's never really dealt with the HD side of things, but I'm curious just what is considered 100% modulation for the digital audio stream. I've been discussing with colleagues about the different references in luFS (loudness units full scale). Since I've never studi...
by Bill DeFelice
Thu May 17, 2018 6:08 am
Forum: Digital Radio
Topic: Monitoring, Day Sequerra Board Repair
Replies: 7
Views: 509

Re: Monitoring, Day Sequerra Board Repair

I had a similar experience with mine. It came back and the high level RF inputs no longer worked. Performance was tepid at best and the bargraph LEDs burned out, related to they receiving a batch of bad driver chips which would send spikes and burn the LEDs out. I'd buy an Inovonics or Belar HD moni...
by Bill DeFelice
Wed May 16, 2018 9:39 am
Forum: Digital Radio
Topic: Monitoring, Day Sequerra Board Repair
Replies: 7
Views: 509

Monitoring, Day Sequerra Board Repair

I thought some of you might be interested in my repair and rework of a DaySequerra M2 with a bad bargraph display board where I demonstrate how I work on SMT mounted components: DaySequerra M2 Mod Monitor: Bargraph Display Board Repair There's a series of photographs that chart the journey along the...
by Bill DeFelice
Sat May 05, 2018 2:04 pm
Forum: TV Engineering
Topic: Silent spot
Replies: 13
Views: 628

Re: Silent spot

TPT wrote:
Sat May 05, 2018 1:17 pm
Years ago local daytime AM sold sign-off to a funeral home:

"The following hours of silence brought to you by Leavitt's Funeral Home"

Click

Hisssssssssssssssssss
While not quite silent, one of my favorite funeral home spots:

Ferryman Funeral Home
by Bill DeFelice
Fri Apr 27, 2018 7:40 am
Forum: Ask the Engineers
Topic: Realistic Service Manual Request
Replies: 7
Views: 206

Re: Realistic Service Manual Request

I looked in my archives and I only have a manual for the STA7 if you think that might be of some help.
by Bill DeFelice
Wed Apr 25, 2018 9:40 am
Forum: Ask the Engineers
Topic: Realistic Service Manual Request
Replies: 7
Views: 206

Re: Realistic Service Manual Request

Did you try googling using the Rat Shack part number for the unit itself? Many times I stumble across service manuals using that method instead of the model name.
by Bill DeFelice
Fri Apr 20, 2018 3:43 pm
Forum: FCC Discussion
Topic: Management ignored me when I suggested LPFM....
Replies: 21
Views: 1004

Re: Management ignored me when I suggested LPFM....

For those of you who don't know who "WREN" is, he is Jon Hall, a highly experienced radio engineer based in Charlottesville, VA, whom I have known for about twenty years. He is now also heavily involved in LPFM. Welcome aboard, Jon! Dale, any relation to Hall Electronics? If so I remember dealing w...
by Bill DeFelice
Sat Mar 24, 2018 9:57 am
Forum: AM Radio
Topic: Audio Bandwidth of an AM Broadcast Station
Replies: 19
Views: 1469

Re: Audio Bandwidth of an AM Broadcast Station

I remember how pleased I was when I engineered a pre-NRSC two tower AM directional daytimer using the Kahn AM Stereo system. Ages before I started engineering there the ops manager gave me one of the Sony SRF-A! AM Stereo Walkman© radios. When I first heard the station I swore I must have been liste...