Search found 551 matches

by Kelly
Fri Aug 28, 2020 1:57 pm
Forum: TV Engineering
Topic: 1080i60=>1080i59.94?
Replies: 4
Views: 231

Re: 1080i60=>1080i59.94?

The FS-1 is a great box, but if all you need to do is change the frame rate from 60fps to 59.94, then this might be a less expensive alternative: https://www.bhphotovideo.com/c/product/1091829-REG/decimator_dd_cross_hdmi_sdi_cross_converter_with.html/?ap=y&ap=y&smp=y&smp=y&lsft=BI%3A514&gclid=EAIaIQ...
by Kelly
Mon Aug 10, 2020 11:48 am
Forum: Digital Television
Topic: Help with Linear Acoustic Box
Replies: 3
Views: 452

Re: Help with Linear Acoustic Box

The box processes audio from embedded video. If it doesn't detect video, it's not going to process audio.
by Kelly
Wed Aug 05, 2020 11:21 am
Forum: FM Radio
Topic: Harris FM 20 K pro and con views
Replies: 21
Views: 1468

Re: Harris FM 20 K pro and con views

As it turns out since in here the owner bought for $17000, a used Harris Z 10 ,I would advised another brand but he has three so parts changes could work .Any ways good by K 20,000. it wasn't a very good transmitter. Huh? A more modern solid state Harris Z-series, will always be a better choice tha...
by Kelly
Mon Jun 22, 2020 8:04 am
Forum: FM Radio
Topic: Exciter shopping
Replies: 15
Views: 1712

Re: Exciter shopping

I know budgets are tight, finding myself cringing recalling some of those haunting exciter model numbers. In my view, the Harris THE1 was one of the worst exciters ever built. Terrible audio specifications and prone to having the oscillator unlocking of you pass too low of frequency audio. The audio...
by Kelly
Tue Jun 09, 2020 12:24 pm
Forum: FM Radio
Topic: Harris FM 20 K pro and con views
Replies: 21
Views: 1468

Re: Harris FM 20 K pro and con views

According to Bob Brown its a miner change most of it done with use of a ruler inside the PA cavity . That may be, but ChuckG, the one who said it was quite difficult, isn't some amateur. He's a very well experienced and known engineer in the trade. He doesn't speak from just guessing. So take his w...
by Kelly
Thu Jun 04, 2020 2:24 pm
Forum: FM Radio
Topic: Harris FM 20 K pro and con views
Replies: 21
Views: 1468

Re: Harris FM 20 K pro and con views

I going to re tune our QEI 10,000 its been running ok at another station . So I'll give it new life at this station with lower power see how long it last. How far (frequency wise) are you moving it? "Wait, I have to do something to change frequencies??" This guy was on a different discussion board ...
by Kelly
Mon Apr 27, 2020 3:25 pm
Forum: AM Radio
Topic: WNPV Lansdale PA
Replies: 4
Views: 717

Re: WNPV Lansdale PA

Wow, a two pattern three tower Class B at 1440 with 500W at night? Ugh, I can see where that wouldn't be very appealing to a prospective new owner. Especially true these days.

So, what's the story on it's demise? TX site property value more than the station is worth?
by Kelly
Thu Apr 23, 2020 7:54 am
Forum: FM Radio
Topic: Harris THE-1 stereo Pilot issue
Replies: 8
Views: 499

Re: Harris THE-1 stereo Pilot issue

Jim Sofonia wrote: Thu Apr 23, 2020 6:34 am Ummn.. What is a "David" ?
Two different vintages:
https://www.inovonicsbroadcast.com/product/716

https://www.bswusa.com/Broadcast-On-Air ... gL8TvD_BwE
by Kelly
Mon Mar 30, 2020 12:41 pm
Forum: STL Engineering
Topic: Harris CD Link
Replies: 3
Views: 959

Re: Harris CD Link

Have you connected it to a known good 50 ohm load? High VSWR is an unusual internal thing to go wrong.
by Kelly
Thu Mar 12, 2020 7:43 am
Forum: FM Radio
Topic: QEI 690 Mod Monitor issue
Replies: 3
Views: 588

Re: QEI 690 Mod Monitor issue

The electrolytic capacitors in the IF board have probably dried out. May have to just shotgun all the caps.
QEI always used the cheapest components with all their products. The fact that monitor has run this long is unusual.
by Kelly
Sat Feb 15, 2020 4:32 pm
Forum: Digital Television
Topic: Cisco DCM D9900/D9901/D9902 (EOL)
Replies: 1
Views: 394

Re: Cisco DCM D9900/D9901/D9902 (EOL)

Even though EOL, some Cisco resellers will still have access to the O.S. library.
May have to shop around to resellers to find one that won't just try to sell you replacement hardware.
by Kelly
Sat Feb 15, 2020 4:29 pm
Forum: TV Engineering
Topic: TV Transmitter question
Replies: 1
Views: 550

Re: TV Transmitter question

Here's a link to what's left of their website: https://www.electronicconnectors.net/e-l-marsden-wireless-inc/ I believe Marsden imported and re-branded these transmitters from Chile. Remember seeing one at a site probably six years ago. Pretty sure it was used as a backup for an LPTV at the same sit...
by Kelly
Fri Jan 24, 2020 9:26 am
Forum: FM Radio
Topic: HD Portable Radio with split audio capability
Replies: 5
Views: 668

Re: HD Portable Radio with split audio capability

None that I've ever seen. Usually I'll take two portable radios to the TX site, one analog and one HD-capable. Fire them both up and see how far things are off.
by Kelly
Thu Jan 16, 2020 9:55 am
Forum: FM Radio
Topic: optimod 2300 boots to blank screen
Replies: 9
Views: 834

Re: optimod 2300 boots to blank screen

That sounds like it's not even booting-up. Like anything else, many of the failures like this are power supply-related. Might be a dead +5V supply.
by Kelly
Thu Jan 02, 2020 4:29 am
Forum: AM Radio
Topic: Gates 5--no audio
Replies: 28
Views: 1790

Re: Gates 5--no audio

Before I attempt surgery on the PDM geni board, could the audio be vanishing beyond this point? Another question--if I haul my old and very heavy scope up the hill and look at the output of the PDM geni baord, would I be able to see audio at this point, or just the 60 KHZ? If your PWM stopped, then...