Search found 912 matches

by Dale H. Cook
Tue Mar 31, 2020 6:11 am
Forum: Radio Studio Engineering
Topic: ADC Punch Block Tool
Replies: 17
Views: 259

Re: ADC Punch Block Tool

Just curious... What do you need a patch bay for? I am curious as well. I haven't done a new build with a patch bay in many years. The last analog cluster studio facility that I built, nearly twenty years ago, used a combination of Broadcast Tools switchers and a cross-point switcher, all under com...
by Dale H. Cook
Sun Mar 29, 2020 5:10 pm
Forum: AM Radio
Topic: Commercially available replacement for the ATU-20 Coupler
Replies: 5
Views: 199

Re: Commercially available replacement for the ATU-20 Coupler

After digging out my manuals for the ATU and TCU couplers I stand corrected - they seem to be the same circuit, and either can handle antenna or carrier current..
by Dale H. Cook
Sun Mar 29, 2020 5:50 am
Forum: AM Radio
Topic: Commercially available replacement for the ATU-20 Coupler
Replies: 5
Views: 199

Re: Commercially available replacement for the ATU-20 Coupler

Do you need one for carrier current or for antenna matching? The ATU series (ATU-20, -30, -60, -100) were designed for antenna matching, largely for TIS stations but also for commercial broadcast. The TCU-30 is a different beast, used for either carrier current or antenna matching. The TCU-30 is som...
by Dale H. Cook
Fri Mar 27, 2020 8:48 am
Forum: AM Radio
Topic: Burk ARC-16 ESI Card
Replies: 14
Views: 1931

Re: Burk ARC-16 ESI Card

A lot of VoIP phone systems don't like modem tones and do weird things with them That is because VoIP phone systems almost always do lossy compression using a bit reduction algorithm, so the modem signal that comes out is not the same as the one that went in, and the receiving modem cannot extract ...
by Dale H. Cook
Fri Mar 13, 2020 5:23 am
Forum: AM Radio
Topic: Wanted Gates BC-1T or equivalent
Replies: 4
Views: 356

Re: Wanted Gates BC-1T or equivalent

I may be able to borrow and scan a BC-1T manual if you end up with one, but the transmitter itself went into amateur service years ago and so is not available. I have a scan of an ITA/Wilkinson AM-1000A manual if you end up with one of those.
by Dale H. Cook
Sun Mar 08, 2020 3:00 pm
Forum: STL Engineering
Topic: Barix Audio Issue
Replies: 10
Views: 211

Re: Barix Audio Issue

You need to answer the questions that Kevin Kidd and Deep Thought have asked before we can help you. Getting some of the Barix boxes to work over the public internet can be chancy at best because of insufficient buffering.
by Dale H. Cook
Wed Mar 04, 2020 8:12 am
Forum: Ask the Engineers
Topic: Is my Rate too high or is the owner high?
Replies: 13
Views: 429

Re: Is my Rate too high or is the owner high?

I charge $50 per hour for stations paying a monthly retainer and $100 per hour for those not under retainer. I charge mileage for stations outside the local area. Stations not paying a retainer get me when I'm available - they don't get the emergency service that retainer stations do. I am also very...
by Dale H. Cook
Tue Mar 03, 2020 8:04 am
Forum: AM Radio
Topic: What type of "bridge" is used to tune Directional Arrays?
Replies: 3
Views: 138

Re: What type of "bridge" is used to tune Directional Arrays?

I think it is some sort of impedance bridge that works under power but I'll be darn'd if I can remember what it is called... and who makes them or who made them. You are probably thinking of the Operating Impedance Bridge (OIB) from Delta Electronics. 2 - Is there a procedure online or elsewhere th...
by Dale H. Cook
Mon Feb 24, 2020 10:24 am
Forum: AM Radio
Topic: Orban Optimod 9300/9400
Replies: 6
Views: 290

Re: Orban Optimod 9300/9400

TPT wrote:
Sun Feb 23, 2020 6:32 pm
Makes more sense to insert something like a Symetrix 528E in the program line--and use that to feed the audio stream.
An Aphex Compellor is a better tool as it is designed for high fidelity audio and the Symetrix 528E is a voice processor.
by Dale H. Cook
Fri Feb 14, 2020 12:05 pm
Forum: AM Radio
Topic: ND-25 Problem
Replies: 5
Views: 203

Re: ND-25 Problem

sallen wrote:
Fri Feb 14, 2020 10:30 am
A good person to talk to at Nautel is Steve Braley
I'll second that. Steve is the go-to guy in tech support for the ND and XL series transmitters, and perhaps the only person left in Nautel support who has substantial hands-on experience with those series.
by Dale H. Cook
Mon Feb 10, 2020 6:53 pm
Forum: Radio Studio Engineering
Topic: Schematic for HollyAnne EAS Program Switch
Replies: 5
Views: 544

Re: Schematic for HollyAnne EAS Program Switch

kkiddkkidd wrote:
Mon Feb 10, 2020 1:30 pm
IIRC, the relay output to them was 9 or 12v.
It was 9V, to match the supply in the HU-961.
by Dale H. Cook
Mon Feb 10, 2020 7:09 am
Forum: Radio Studio Engineering
Topic: Schematic for HollyAnne EAS Program Switch
Replies: 5
Views: 544

Re: Schematic for HollyAnne EAS Program Switch

I had a couple of those POS Hollyanne systems back in the day, and still have all the documentation that I ever saw in PDF, but AFAIK they never released schematics and I don't have any.
by Dale H. Cook
Tue Jan 28, 2020 2:39 pm
Forum: AM Radio
Topic: Another one bites the dust
Replies: 10
Views: 882

Re: Another one bites the dust

The only ways for an LPFM to generate revenue are through donations, fundraisers and underwriting because they are non-commercial. Any LPFM that airs actual commercials should be reported to the Commission for violating the terms of its license.
by Dale H. Cook
Mon Jan 27, 2020 8:38 am
Forum: AM Radio
Topic: Another one bites the dust
Replies: 10
Views: 882

Re: Another one bites the dust

There is an LPFM in SW VA that is on the air, sort of - they are not transmitting from their licensed location, and they bought a cheapo Chinese transmitter which is not legal for use in the US (it has no FCC sticker). It is on with dead air 24/7. Early last year they had me come in. I determined th...
by Dale H. Cook
Thu Jan 09, 2020 9:02 am
Forum: Broadcast Engineering News
Topic: The Looming Engineering Age Crisis
Replies: 74
Views: 9966

Re: The Looming Engineering Age Crisis

NO I do not want "part time" emergency work For decades I have been on call 24/7 only for station clusters for whom I was a full time salaried engineer, and that ended six years ago. I have a couple of customers who pay me a rather minimal retainer. What that buys them is a guarantee I will work fo...