Search found 802 matches

by Shane
Sat May 12, 2018 12:23 am
Forum: Ask the Engineers
Topic: C-band TI
Replies: 20
Views: 363

Re: C-band TI

In the early 80’s a Scientific Atlanta broadcast installation in Omaha used an LNA with a downconvert to 70 MHz after feedline entered the building. The downconverter was inside the receiver and was I think a double conversion to get down to 70. So there was some of that stuff in the broadcast realm...
by Shane
Sat Apr 07, 2018 4:09 pm
Forum: AM Radio
Topic: GATES ONE IRF-350 REPLACEMENT
Replies: 9
Views: 535

Re: GATES ONE IRF-350 REPLACEMENT

Then there are the lead-free versions; and the lead-free versions, produced with a pair of diagonals:
CD5A62F0-5161-4C0B-BE99-492A017A5532.jpeg
CD5A62F0-5161-4C0B-BE99-492A017A5532.jpeg (27.22 KiB) Viewed 338 times
...or Photoshop.
by Shane
Wed Mar 28, 2018 9:46 pm
Forum: Help Wanted/Available
Topic: Full-Time Engineering Opening--Charlotte, NC
Replies: 2
Views: 832

Re: Full-Time Engineering Opening--Charlotte, NC

One can go to the main page at bbnradio.org and the Minustry Opportunities link in the menu. Scroll down to the bottom of the page to the button that opens the application form. Network Broadcast Engineer is one of the choices.

Hope this helps.
by Shane
Sat Mar 24, 2018 10:54 am
Forum: AM Radio
Topic: Dealing with mixing products
Replies: 10
Views: 1350

Re: Dealing with mixing products

Not too surprised at the size of the filter. I have a 70kHz space between a 5kw and a 1kw here. They are about a mile apart, too. The 5kw fundamental gets into the 1kw and mixes with its 2nd harmonic producing a difference only another 70kHz away from the 1kw in the opposite direction. This is perha...
by Shane
Fri Mar 23, 2018 9:43 am
Forum: TV Engineering
Topic: Transmitter Nitrogen Issue
Replies: 25
Views: 498

Re: Transmitter Nitrogen Issue

Well, you don’t have to service a dehydrator if you use nitrogen. You won’t burn up a dehydrator on a leaky line with nitrogen. You won’t soil your underwear when the dehydrator fires up (I just do not ever get used to that!). There are probably better reasons. I think one thing to try, if you haven...
by Shane
Fri Mar 23, 2018 9:21 am
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 40
Views: 819

Re: RX-only C-band receive station registration, form 312

I recall that happening but don't recall the exact situation or circumstances. Do you remember when it was, what it was and which commissioner it was? I’d have to research the name(s). I recall it was a male commissioner who used the Repeater directory, that UPS was the intended beneficiary to be a...
by Shane
Wed Mar 21, 2018 6:26 pm
Forum: FCC Discussion
Topic: RX-only C-band receive station registration, form 312
Replies: 40
Views: 819

Re: RX-only C-band receive station registration, form 312

I don’t know if it would make a hill of beans of difference but perhaps a reminder of how in the not-too-distant past a commissioner whipped out the ARRL Repeater Directory to “discover” there was no operation below 222 MHz so surely we wouldn’t miss the spectrum, might be worth pointing out. This i...
by Shane
Tue Mar 20, 2018 9:52 pm
Forum: AM Radio
Topic: GatesAir suspends AM TX sales (Radio World)
Replies: 33
Views: 1072

Re: GatesAir suspends AM TX sales (Radio World)

I don't know how EMF thinks on backup. They run naked all of the time anyway with only one transmitter and no generator. They were off the air for a whole week when they had transmitter trouble a couple of years ago. ...Lee When K-love is off the air that’s when the $ come in from listeners in that...
by Shane
Fri Mar 16, 2018 9:51 pm
Forum: Administrator Announcements
Topic: SSL Certificate
Replies: 21
Views: 768

Re: SSL Certificate

Netscape anyone? :shock:
by Shane
Thu Mar 15, 2018 4:55 pm
Forum: FM Radio
Topic: HT-5 plate off problem
Replies: 10
Views: 347

Re: HT-5 plate off problem

Isn’t there also a backup controller one could work from while working on the main controller? There is on the higher powered versions. Maybe that would be a way to rule in or rule out the controller.
by Shane
Fri Mar 09, 2018 7:30 pm
Forum: Administrator Announcements
Topic: SSL Certificate
Replies: 21
Views: 768

Re: SSL Certificate

I couldn’t even log in but adding the ‘s’ to the bookmark took care of that. Thanks, Chris and Mike, too, for helping me out.
by Shane
Thu Mar 08, 2018 4:54 pm
Forum: Ask the Engineers
Topic: Gates Harris Yard 80 Solid State Console
Replies: 2
Views: 140

Re: Gates Harris Yard 80 Solid State Console

Bill,

Nice pic! Dude.

I think I have one of those in storage. If I can get to it, I should be able to get some internal pictures. I don't know if this one has been modified but it may be obvious once I get inside. Might have a manual if we get real lucky.
by Shane
Sun Feb 18, 2018 11:42 pm
Forum: Ask the Engineers
Topic: Schematic Needed
Replies: 12
Views: 337

Re: Schematic Needed

Gorman-Redlich still make NWS receivers? And can you still buy replacement dial cord? I used to have a spool of it.
by Shane
Fri Feb 16, 2018 11:51 pm
Forum: Ask the Engineers
Topic: Schematic Needed
Replies: 12
Views: 337

Re: Schematic Needed

Eric, I think someone answered you with what you need over on the CRTech forum.
by Shane
Fri Feb 09, 2018 9:52 pm
Forum: Ask the Engineers
Topic: Sony BVH2000PS tension adjustment.
Replies: 18
Views: 597

Re: Sony BVH2000PS tension adjustment.

Hello, Karol, and welcome to the forum. I think you’re in the right place. There was some recent discussion about this machine and it’s cousins in this very forum (Ask the Engineers) not very long ago, so it should be easy to find. Seems they went over some of the same things you are needing help wi...