Search found 499 matches

by Kelly
Mon Oct 15, 2018 3:19 pm
Forum: AM Radio
Topic: Gates 5 rebuild
Replies: 6
Views: 201

Re: Gates 5 rebuild

That's what I was thinking; blown fuses ahead of blown FET's.
by Kelly
Tue Oct 09, 2018 2:07 pm
Forum: TV Studio Engineering
Topic: Genlock
Replies: 6
Views: 559

Re: Genlock

As everyone else has mentioned, you would need a common time code. Where I used to work, we did this all the time: Three or more DSLR cameras all shooting iso, plus separate sound recorder. When you get into the editing process, the time code will make it much simpler to synchronize all your cameras...
by Kelly
Mon Oct 01, 2018 11:29 am
Forum: FM Radio
Topic: Avarage life of a 3cx15000a7
Replies: 6
Views: 377

Re: Avarage life of a 3cx15000a7

Pretty much without fail, the lifespan of a tube depends on three main factors: 1. Installation and tuning of the tube. 2. Proper filament management beginning with installation. 3. Consistent voltage and proper operating temperature range. New tubes operating with tuning maintained, utilization of ...
by Kelly
Wed Sep 12, 2018 10:29 am
Forum: TV Engineering
Topic: High Intesity Tower Lights
Replies: 3
Views: 227

Re: High Intesity Tower Lights

I've heard (and experienced) a lot less complaints about LED lighting packages than traditional strobes. They're pricey, but from what I understand a good long-term investment.
by Kelly
Mon Aug 27, 2018 2:29 pm
Forum: TV Studio Engineering
Topic: RDL ST-SSR1
Replies: 3
Views: 167

Re: RDL ST-SSR1

And another benefit of not using RDL devices? One less wall wort!
by Kelly
Mon Aug 27, 2018 2:27 pm
Forum: FM Radio
Topic: The-1 or FX-30
Replies: 17
Views: 586

Re: The-1 or FX-30

After having used both exciters over the years and as compared with modern exciters? I wouldn't put either on the air. They both have problems that can effect overall audio quality. Maybe for a LPFM with minimal budget, just to get on the air...
by Kelly
Tue Aug 21, 2018 6:40 pm
Forum: Digital Radio
Topic: Nautel Extended Digital Mode
Replies: 5
Views: 701

Re: Nautel Extended Digital Mode

Okay got it figured out with the direction from Terry at Nautel. I didn't have the "Multicast" manual at the studio for reference, but way in the back of the manual (which was up at the site) is a couple tables of the bit allocations depending on what mode(s) of HD you're doing. In our case, it was ...
by Kelly
Tue Aug 21, 2018 7:46 am
Forum: Digital Radio
Topic: Nautel Extended Digital Mode
Replies: 5
Views: 701

Re: Nautel Extended Digital Mode

And by the way, you have a Golden Eagle that actually WORKS? Congratulations! You're lucky. Bob M. Hi Bob, Yep believe it or not, the Golden Eagle at the studio seems to replicate what I'm seeing also at the TX. One has to reset it frequently, but it at least seems to be accurate. Looks like a call...
by Kelly
Mon Aug 20, 2018 7:18 pm
Forum: Digital Radio
Topic: Nautel Extended Digital Mode
Replies: 5
Views: 701

Nautel Extended Digital Mode

Just brought a brand new GV 7.5 on the air and it seems to be running in 'extended digital' mode. In other words the digital sidebands are wider to the inside than my Audemat Golden Eagle shows they should be. The Nautel AUI/GUI shows they are in the overall mask, but Nautel only brackets the mask t...
by Kelly
Wed Aug 15, 2018 1:25 pm
Forum: AM Radio
Topic: Transmitter plant ambient temps?
Replies: 15
Views: 1197

Re: Transmitter plant ambient temps?

I recently had the opportunity to tour one of the newer NetApp data centers outside of Raleigh, N.C. One thing of note is these new data centers don't use hardly any conventional air conditioning. In speaking with one of their engineers the need is, as it's always been, is to flow enough clean air t...
by Kelly
Wed Aug 01, 2018 8:23 am
Forum: FM Radio
Topic: Source for the rubber bungs that seal cables on transmitter shacks
Replies: 4
Views: 265

Re: Source for the rubber bungs that seal cables on transmitter shacks

EBay has them from time to time as well.
by Kelly
Wed Aug 01, 2018 8:22 am
Forum: FM Radio
Topic: Two soggy Heliax lines!
Replies: 7
Views: 297

Re: Two soggy Heliax lines!

"Draining" lines is a very temporary solution while waiting for the new line and tower crew to replace it. There is no way the line will ever dry out, and as mentioned, carbon and corrosion will cause heating and increasingly poor connections at the antenna. Replacement is the only option.
by Kelly
Sun Jun 03, 2018 5:21 pm
Forum: FM Radio
Topic: Harris HT25-FM
Replies: 6
Views: 380

Re: Harris HT25-FM

A total long shot, but check the MOV's in the HV power supply cabinet. Mine is an HT30, but I had something similar happen where after a storm the MOV just inside the right side panel was making a screaming noise. With the blowers (and in my case a rotary phase converter) running, it's hard to hear,...
by Kelly
Thu Jan 18, 2018 7:45 pm
Forum: FM Radio
Topic: Repair Log: BE FXi-60
Replies: 4
Views: 661

Re: Repair Log: BE FXi-60

The FXi-60 is one of the best sounding exciters, ever.