Search found 873 matches

by Dale H. Cook
Thu Jul 18, 2019 9:16 am
Forum: Ask the Engineers
Topic: Cutting Hard Line
Replies: 11
Views: 220

Re: Cutting Hard Line

W9PXZ wrote:
Wed Jul 17, 2019 8:08 pm
I was not aware they made them big enough to do 3"
A friend who is engineering director of a statewide system of NPR stations has a Rigid that will do 6" hardline (that is what their flagship station uses to feed a 5 bay).
by Dale H. Cook
Mon Jul 15, 2019 6:57 am
Forum: FM Radio
Topic: Harris Z FM FET replacement
Replies: 7
Views: 320

Re: Harris Z FM FET replacement

radio_guru wrote:
Sun Jul 14, 2019 8:47 pm
I bought an inch/pound torque tool on E-bay.
I use an American-made low-range torque wrench which cost about $80.00 and came with a calibration certificate.
by Dale H. Cook
Fri Jul 12, 2019 12:07 pm
Forum: FCC Discussion
Topic: FCC FM Query Data Base
Replies: 12
Views: 279

Re: FCC FM Query Data Base

When I was a kid I enjoyed the occasional Scooter Pie in my brown-bag school lunch. It wasn't until I moved south in 1984 that I encountered the real deal - the Moon Pie from Chattanooga Bakery. It became part of my standard fee invoice until I had to drop it after developing diabetes a decade ago. ...
by Dale H. Cook
Fri Jul 12, 2019 10:14 am
Forum: General Computers
Topic: How to Delete a Post
Replies: 5
Views: 243

Re: How to Delete a Post

Click "The Team" at the bottom of the window and PM one of the admins with your question.
by Dale H. Cook
Fri Jul 12, 2019 10:12 am
Forum: FCC Discussion
Topic: FCC FM Query Data Base
Replies: 12
Views: 279

Re: FCC FM Query Data Base

RGORJANCE wrote:
Wed Jul 10, 2019 9:27 am
My standard fee for "stuff" is a cup of coffee, payable next time we meet.
Fossil -

What? You don't even bill a kringle?
by Dale H. Cook
Fri Jul 12, 2019 10:08 am
Forum: FM Radio
Topic: Harris Z FM FET replacement
Replies: 7
Views: 320

Re: Harris Z FM FET replacement

The physical replacement appears straightforward. The one thing that may be critical in the physical replacement is the torque. If the manual doesn't specify replacement torque I like to measure it. I use an analog dial inch-pound torque wrench with a follower needle. The follower needle shows how ...
by Dale H. Cook
Wed Jul 10, 2019 7:03 am
Forum: FM Radio
Topic: 75 uSec Pre-Emphasis Graph
Replies: 10
Views: 336

Re: 75 uSec Pre-Emphasis Graph

Being too poor to buy an NAB engineering handbook, I'd love to get a copy of your complete proof document. It is not from the NAB Engineering Handbook. It is an entirely different NAB publication, "Instructions for Conducting Audio Frequency Proof-of-Performance Measurements" published in 1877. I h...
by Dale H. Cook
Mon Jul 01, 2019 4:50 pm
Forum: FM Radio
Topic: Ecreso vs. BW for Translator
Replies: 15
Views: 972

Re: Ecreso vs. BW for Translator

It worked out well, but we had an early Version 3 and in some conditions, apparently related to what reports the owner was set up to get via the internet (he is a pretty heavy IT guy by trade, much heavier than a small-town station requires), it would reboot itself from time to time. BW revised the ...
by Dale H. Cook
Mon Jul 01, 2019 9:35 am
Forum: FM Radio
Topic: Ecreso vs. BW for Translator
Replies: 15
Views: 972

Re: Ecreso vs. BW for Translator

wichitapc wrote:
Mon Jul 01, 2019 7:47 am
From what I've read on the BW compared to my experience, I'd go with the Ecreso.
Note that this topic is a year old, and we purchased the BW a year ago.
by Dale H. Cook
Fri Jun 28, 2019 8:05 am
Forum: AM Radio
Topic: Vertical Monopoles Using Buried Radials
Replies: 1
Views: 249

Re: Vertical Monopoles Using Buried Radials

For any of you unfamiliar with this volume, you can download a scan which has been posted (in violation of copyright) at:

snulbug.mtview.ca.us/books/RadioAntennaEngineering/RadioAntennaEngineering-ebook.pdf
by Dale H. Cook
Thu Jun 27, 2019 8:58 am
Forum: FM Radio
Topic: 75 uSec Pre-Emphasis Graph
Replies: 10
Views: 336

Re: 75 uSec Pre-Emphasis Graph

Years ago I scanned the NAB "Instructions for Conducting Audio Frequency Proof-of-Perfomance Measurements" instructions and forms for a fellow engineer. I have pulled the pre-emphasis graph and posted it at https://plymouthcolony.net/starcityeng/files/NAB-Pre.pdf . It is an old scan done with an old...
by Dale H. Cook
Wed Jun 19, 2019 7:38 am
Forum: AM Radio
Topic: Tower Identification
Replies: 5
Views: 319

Re: Tower Identification

I also think it is a Blaw-Knox. I took take of a site with four of them that was torn down years ago.
by Dale H. Cook
Wed May 08, 2019 6:30 am
Forum: Ask the Engineers
Topic: Daven/Shallco Pots
Replies: 1
Views: 107

Re: Daven/Shallco Pots

Pretty much any Daven or Shallco stereo rotary faders should work in that board, and that covers a lot of years and many manufacturers.
by Dale H. Cook
Tue Apr 30, 2019 9:05 am
Forum: Radio Studio Engineering
Topic: Audio cable for AM transmitter site? Star Quad or Ethernet or What?
Replies: 22
Views: 534

Re: Audio cable for AM transmitter site? Star Quad or Ethernet or What?

PID_Stop wrote:
Tue Apr 30, 2019 7:30 am
... 3M had just come out with nifty little dispensers with rolls of plastic adhesive numeral marker tapes (0 - 9).
Those are the ScotchCode numbers of which I wrote.
by Dale H. Cook
Tue Apr 30, 2019 5:32 am
Forum: Radio Studio Engineering
Topic: Audio cable for AM transmitter site? Star Quad or Ethernet or What?
Replies: 22
Views: 534

Re: Audio cable for AM transmitter site? Star Quad or Ethernet or What?

Belden 8451 two wires, foil shield. Or Belden 8723, 2 pair, individually shielded with common drain wire, for stereo. Pick up the little cloth number books ... Then get some 1/4" clear shrink tube (Amazon), and--to really do it right, splurge for a heat gun (try Jameco) I abandoned the books for 3M...