Search found 473 matches

by grich
Wed Sep 23, 2020 4:45 pm
Forum: Ask the Engineers
Topic: Disabling Windows Features Updates
Replies: 27
Views: 1108

Re: Disabling Windows Features Updates

Yikes, I remember once upon a time dialing into various Wizard for Windows systems using a modem and pcAnywhere... I just recycled the Multitech modem I used to use with pCAnywhere for getting into station systems... Playing with Google Remote Desktop at a couple of sites. Another client of mine is...
by grich
Thu Sep 17, 2020 10:47 am
Forum: FM Radio
Topic: Quality translator
Replies: 22
Views: 514

Re: Quality translator

ferrites on the coax I missed this first time round, and Deep Thought's photo reminded me of it. What's with the ferrites on coax? I get ferrites on signal cables, they get rid of RF where there shouldn't be RF, but I'm having some difficulty understanding why ferrites on a coax? Ferrites on the co...
by grich
Mon Aug 24, 2020 4:11 pm
Forum: TV Engineering
Topic: 1080i60=>1080i59.94?
Replies: 4
Views: 228

Re: 1080i60=>1080i59.94?

Been there, done that. FS1 won't do it, but the FS2 will...and it has two video processing chains, so you can do two security cams, or a cam and an Apple TV box using the HDMI in, etc.
by grich
Thu Aug 20, 2020 5:00 pm
Forum: AM Radio
Topic: Old Gates Radio RF Coil Info
Replies: 10
Views: 210

Re: Old Gates Radio RF Coil Info

Thank you very much Mark...you're a real swell feller. :D

I also have a pile of EFJ coils to decipher.
by grich
Fri Aug 07, 2020 10:12 am
Forum: FCC Discussion
Topic: Walmart Drive-In Movies Using FM Transmitter
Replies: 2
Views: 607

Re: Walmart Drive-In Movies Using FM Transmitter

A drive-in aficionado I'm acquainted with says some of today's SDR-based car radios will introduce delay, meaning you will have to tolerate lip-flap.

He advised bringing an old boom box for sound, or drive in with a beater with a working car stereo.
by grich
Tue Aug 04, 2020 12:44 pm
Forum: Digital Television
Topic: Help with Linear Acoustic Box
Replies: 3
Views: 449

Re: Help with Linear Acoustic Box

I'm no Aero.Air expert, but I did take care of the original Aero.Air DTV, which was basically a Windows PC. It did work well, but it was retired when our TV plant moved to version 2.0 and corporate went a different direction with audio processing. That box took either discrete AES channels or extrac...
by grich
Sun Jul 12, 2020 12:37 pm
Forum: STL Engineering
Topic: Marti STL-10 regulator
Replies: 13
Views: 551

Re: Marti STL-10 regulator

My STL-10A book shows the same thing. LM338T on that schematic, but no parts list for that board.
by grich
Sat Jun 20, 2020 10:53 pm
Forum: Everything else
Topic: 8-Tracks Only
Replies: 1
Views: 346

Re: 8-Tracks Only

KHOI-FM, an eclectic Class-A station a half-hour north of me in Story City, IA...easily heard in nearby Ames. The full episode may be on Youtube.

Gotta love the matchbook azimuth adjusters...doing it old-school!
by grich
Thu May 21, 2020 9:02 am
Forum: AM Radio
Topic: CSP phasor controller
Replies: 9
Views: 921

Re: CSP phasor controller

Those paralleled resistors in the middle of the cabinet sure look like hell, too.
by grich
Wed May 20, 2020 4:40 pm
Forum: AM Radio
Topic: CSP phasor controller
Replies: 9
Views: 921

Re: CSP phasor controller

On the 50-year-old Multronics controller I care for, 120VAC is used for position status. If I recall correctly, the interlock relay closes only when 120V is returned from the contactors at the towers and in the phasor. I wonder if some failure is pulling down the status voltage in day mode. Are the ...
by grich
Fri May 08, 2020 11:40 am
Forum: Everything else
Topic: GATES AIR FULL DOCUMENTATION LOCATION
Replies: 11
Views: 549

Re: GATES AIR FULL DOCUMENTATION LOCATION

Walter gave me the login credentials a few years ago. I don't know if they were intended for wide distribution. PM me and I'll pass it along.
by grich
Sun May 03, 2020 9:51 pm
Forum: Ask the Engineers
Topic: sat look angle calculator
Replies: 3
Views: 225

Re: sat look angle calculator

kkiddkkidd wrote: Sun May 03, 2020 6:04 pm https://www.dishpointer.com/ is what I use most of the time. They also have an Android app that uses the phone camera for augmented reality. The online app actually shows the path on google earth and gives a sliding ruler of look angle height AGL as ...
+1 on Dishpointer...
by grich
Wed Apr 22, 2020 2:31 pm
Forum: FM Radio
Topic: Harris THE-1 stereo Pilot issue
Replies: 8
Views: 499

Re: Harris THE-1 stereo Pilot issue

Not familiar with the David, but check to see what control (pot or software) is used to control pilot injection level. Been bit by that before.
by grich
Fri Apr 03, 2020 5:23 pm
Forum: Digital Television
Topic: RX1290 decoder failure
Replies: 3
Views: 498

Re: RX1290 decoder failure

RX1290s have been out of production for some time now; bad capacitors would be my initial suspicion. On the other hand, 1290s are newer than the initial surge of RoHS equipment, so they probably aren't falling victim to the tin whisker failures from lead-free solder. (Nearly all of our original Ter...
by grich
Wed Apr 01, 2020 4:26 pm
Forum: Radio Studio Engineering
Topic: ADC Punch Block Tool
Replies: 25
Views: 909

Re: ADC Punch Block Tool

screw terminals (I forget what you call them) that accept your audio cabling and plug into a marching male connector with a row of pins which mounts The Phoenix connectors. Why the EasyCrap box can't use XLRs is one of the most annoying features of that box. I have made my clients aware of the Sage...