Search found 109 matches

by W2XJ
Sun Apr 01, 2018 10:59 pm
Forum: AM Radio
Topic: Audio Bandwidth of an AM Broadcast Station
Replies: 19
Views: 1540

Re: Audio Bandwidth of an AM Broadcast Station

What usually is overlooked is that audio bandwidth control should be separated from RF bandwidth control. In other words if you want 5 KHz audio response, put a filter with a Butterworth response BEFORE the processor and then set the processor output filter to something higher. That way you’re not p...
by W2XJ
Sun Apr 01, 2018 9:58 pm
Forum: AM Radio
Topic: GatesAir suspends AM TX sales (Radio World)
Replies: 33
Views: 1452

Re: GatesAir suspends AM TX sales (Radio World)

If New York is any indicator they won’t be selling many TV transmitters either. All but one station so far have purchased Rhode Schwarz. Regarding power supplies, it would appear that most manufacturers choose to avoid the whole approvals process along with the liabilities involved by outsourcing. P...
by W2XJ
Sun Feb 04, 2018 5:11 pm
Forum: AM Radio
Topic: 317c1 parts
Replies: 11
Views: 825

Re: 317c1 parts

There are still those who would happily take a whole 317 C1 in tact. Being that your building has ample space, you could leave it sit until someone came and picked it up and paid a few bucks. OR you could let it sit with a manual power disconnect and a manual coax patch and let it sit off line for l...
by W2XJ
Mon Jan 22, 2018 9:30 pm
Forum: STL Engineering
Topic: Marti 950 MHz STL-10 spurious emissions
Replies: 6
Views: 1844

Re: Marti 950 MHz STL-10 spurious emissions

Mostly true but 50 DB is not enough attenuation. A 50 DB directional coupler AND another 20 DB pad would be much better.
by W2XJ
Mon Jan 22, 2018 5:28 pm
Forum: FM Radio
Topic: Repair Log: BE FXi-60
Replies: 4
Views: 652

Re: Repair Log: BE FXi-60

Maybe ‘ever’ for an analog exciter although we preferred the FX50.
by W2XJ
Mon Jan 22, 2018 5:12 pm
Forum: FM Radio
Topic: Harris/Gates support
Replies: 23
Views: 1895

Re: Harris/Gates support

When I started in the business the stations in my market were either Collins or RCA shops back when most broadcast equipment manufacturers built end to end solutions. It was a while before I ever saw Gates gear (well before the Harris era). When we started putting new FMs on air, one station I was i...
by W2XJ
Wed Jan 10, 2018 1:46 pm
Forum: FM Radio
Topic: Blue tooth mixer and high school games
Replies: 22
Views: 1833

Re: Blue tooth mixer and high school games

Well Verizon is headed in a different direction. They did not bid on any 600 MHz spectrum. They are focusing on smaller and smaller cells to offer more speed. Problem there is no ROI on these cells out in the country. Supposedly TMobile is doing the opposite and are taking advantage of 600 MHz range...
by W2XJ
Wed Jan 10, 2018 12:02 am
Forum: FM Radio
Topic: Blue tooth mixer and high school games
Replies: 22
Views: 1833

Re: Blue tooth mixer and high school games

For what its worth, keep an eye on Tmobile. They are agressively rolling out their newly acquired 600 MHz spectrum. While this doesn’t solve the current problems, they are focusing on more rural areas since the repack hasn’t happened. Once they light up service, a new phone will be required since no...
by W2XJ
Mon Jan 08, 2018 7:36 pm
Forum: FM Radio
Topic: 2 stations fighting to get on the frequency
Replies: 5
Views: 424

Re: 2 stations fighting to get on the frequency

Agreed I had a station in NYC that was short spaced to one in Philly. Every August when the ducting set up Philly would cover over almost all our coverage area. You could see our antenna on Empire and hear Philly. Of course, we were clobbering them. MAD :-) I had a solution - swap frequencies in Phi...
by W2XJ
Sun Jan 07, 2018 6:01 pm
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 32
Views: 2384

Re: Singling out 2 stations on same frequency

Going back a re-reading my last response to the post preceeding it, I now see that poster must have misunderstood the entire point of this discussion. The original question revolved around receiving a station in Newport News VA which was apparently possible when the closer co-channel station in VA w...
by W2XJ
Sun Jan 07, 2018 5:02 pm
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 32
Views: 2384

Re: Singling out 2 stations on same frequency

2 things: 1. I think it is wrong to name specific names of parties where one has no direct involvement. It is potentially damaging to one’s self interests down the road. I know the parties involved with 4TS, one who I initially hired into the industry was running the translator off the roof of his c...
by W2XJ
Sat Jan 06, 2018 2:54 pm
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 32
Views: 2384

Re: Singling out 2 stations on same frequency

OTA in general doesn’t fly today and hasn’t for at least the past 35 years and it never was anything like 5 nines more like 2 sevens. But actually that OTA I cited would fly today, at least legally, since the system was beyond the reach of retransmission consent except that stuff was long ago replac...
by W2XJ
Sat Jan 06, 2018 4:53 am
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 32
Views: 2384

Re: Singling out 2 stations on same frequency

I see that now BUT there is a translator CP for Baltimore. Before that goes on he would need something like this: http://wadeantenna.com/product/channel-6-fm-diamond-quad-log-periodic-array/ Besides costing a few K, it requires a relatively large commercial tower costing more Ks. Then zoning for all...
by W2XJ
Fri Jan 05, 2018 9:01 pm
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 32
Views: 2384

Re: Singling out 2 stations on same frequency

To expand: § 74.1203 Interference. (a) An authorized FM translator or booster station will not be permitted to continue to operate if it causes any actual interference to: (1) The transmission of any author- ized broadcast station; or (2) The reception of the input signal of any TV translator, TV bo...
by W2XJ
Fri Jan 05, 2018 8:18 pm
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 32
Views: 2384

Re: Singling out 2 stations on same frequency

In fact, for the moment, he does. This exact thing happened in NYC for a new translator which was walked, at great expense, to 4 Times square to ‘translate’ an HD2. A station far out of market surreptitously encouraged fringe listeners to complain to the FCC. A station has no standing. Even in the c...