Search found 148 matches

by RodeoJack
Fri Apr 20, 2018 2:03 pm
Forum: Everything else
Topic: A bit of AM History
Replies: 4
Views: 195

Re: A bit of AM History

Geez.... at least use cart labels over Scotch Tape... or the like!

Most of the owners I worked for would have freaked if I'd done that to their rigs :-)
by RodeoJack
Sun Apr 08, 2018 10:16 pm
Forum: AM Radio
Topic: GATES ONE IRF-350 REPLACEMENT
Replies: 9
Views: 494

Re: GATES ONE IRF-350 REPLACEMENT

Not all IRF350's are created equal. Some are Chinese knockoffs do not hold up under power. If you have IRF350's failing for unknown reasons, better check the manufacturer, could be they're the cheap knockoffs. I've bought IRFP350s from several outlets, and for prices ranging from about 80 cents to ...
by RodeoJack
Thu Apr 05, 2018 11:18 am
Forum: Ask the Engineers
Topic: Sage ENDEC Printing
Replies: 7
Views: 175

Re: Sage ENDEC Printing

All of what Chris suggests works very well. Some time back, I set up the Endecs I watch to FTP alerts to a server at my office. The FTP software routes the received alerts to a subfolder I keep for each station in my circuit. I do that mainly for backup and troubleshooting purposes, and because it w...
by RodeoJack
Thu Apr 05, 2018 11:06 am
Forum: AM Radio
Topic: GATES ONE IRF-350 REPLACEMENT
Replies: 9
Views: 494

Re: GATES ONE IRF-350 REPLACEMENT

The IRFP is a different case. You can find the right part fairly easily (Mouser, Newark, Digikey, Ebay), so there's no urgent reason to modify the boards. I haven't had any trouble with the lead-free variants. So-far, I haven't found one version that seems to be better (or worse) than others, so I s...
by RodeoJack
Tue Apr 03, 2018 1:42 pm
Forum: FM Radio
Topic: National over Eimac or Econco
Replies: 20
Views: 613

Re: National over Eimac or Econco

So... given that Eimac and Econco are both divisions of Communications and Power Industries, Inc (CPI), are they basically coming out of the same factory and, if so, what would the practical difference be?
by RodeoJack
Sun Apr 01, 2018 11:21 am
Forum: AM Radio
Topic: GatesAir suspends AM TX sales (Radio World)
Replies: 25
Views: 773

Re: GatesAir suspends AM TX sales (Radio World)

They might as well stay gone then. I'm not sure what area they'd try to compete with, at this point. Everything from 10kW down is covered pretty well by N and B. Maybe they could go after the high power market, but could they compete and turn out enough of them to cover the R&D for the new tech the...
by RodeoJack
Sat Mar 17, 2018 9:39 am
Forum: AM Radio
Topic: GatesAir suspends AM TX sales (Radio World)
Replies: 25
Views: 773

Re: GatesAir suspends AM TX sales (Radio World)

Be careful about your impressions of Australia. I have a brother and a niece who live over there. They compare Fosters with some of the cheap American stuff you see, blasted on our TVs... and when I suggested Outback Steakhouse was modeled after the spirit of their country, they nearly choked on the...
by RodeoJack
Sun Feb 25, 2018 10:57 am
Forum: FCC Discussion
Topic: Management ignored me when I suggested LPFM....
Replies: 21
Views: 841

Re: Management ignored me when I suggested LPFM....

If your area has that many signals, chances are an existing LPFM will eventually become available. Lots of people built these things without a practical knowledge of their care and feeding. Once they've had their fill of finding reliable volunteer staff, keeping equipment running, possibly paying re...
by RodeoJack
Fri Feb 23, 2018 3:03 pm
Forum: Ham Radio
Topic: Bauer 707 Repurpose/Restoration
Replies: 4
Views: 306

Re: Bauer 707 Repurpose/Restoration

Look forward to seeing that.

There are a couple of 707s on the east side of our state (Washington) that are looking for similar accommodations.
by RodeoJack
Thu Feb 15, 2018 10:22 am
Forum: AM Radio
Topic: Audio Bandwidth of an AM Broadcast Station
Replies: 19
Views: 1210

Re: Audio Bandwidth of an AM Broadcast Station

Yah... I'd have to argue that one, too. 15 of the stations in my circuit are AMs. Most of them have attached FMs, or have recently received CPs for them under Revitalization. While diligence toward maintenance and compliance varies somewhat between the owners, the worst of them is only marginally de...
by RodeoJack
Mon Feb 12, 2018 6:34 pm
Forum: STL Engineering
Topic: Marti 950 MHz STL-10 spurious emissions
Replies: 6
Views: 1554

Re: Marti 950 MHz STL-10 spurious emissions

If all else fails & you don't have the time to bench it, I'd recommend Bohn Broadcast. I sent 3 pairs of those STLs out to them & they came back like new... better power supplies, replaced rotary switches, LEDs for the meter lamps & a bunch of updated parts. I know there are others who do this kind ...
by RodeoJack
Mon Feb 12, 2018 6:14 pm
Forum: FM Radio
Topic: Translator Question...
Replies: 11
Views: 456

Re: Translator Question...

This may have already been covered, but I'm still trying to figure out if the restrictions the FCC placed on these new translators were outdated before they were released. Even with "reduced facilities", wouldn't the 25-mile part of the "greater than" rule still apply to the translator's contour? Se...
by RodeoJack
Fri Feb 02, 2018 11:54 am
Forum: FM Radio
Topic: Harris/Gates support
Replies: 23
Views: 1546

Re: Harris/Gates support

jakebechtold wrote:
Fri Feb 02, 2018 7:30 am
The good news Shane, you were not gouged!
... or you both were
by RodeoJack
Thu Jan 18, 2018 9:55 am
Forum: FM Radio
Topic: Harris/Gates support
Replies: 23
Views: 1546

Re: Harris/Gates support

I have mixed feelings about Harris. Last year, I did a re-freq on a DX-10. It involved changing capacitor types, and that required different mounting plates. They went out to the floor a couple of times and sent back pictures. It took some time to get the right combo, and the crystals took well over...
by RodeoJack
Sun Jan 14, 2018 10:09 pm
Forum: FCC Discussion
Topic: Revitalized AM Translators
Replies: 16
Views: 510

Revitalized AM Translators

Those of you who haven't yet built an "AM on FM" translator that was acquired under the "AM Revitalization Act" might find the following interesting. Having repurposed a few of these, pre-revitalization, I've run into some creative ideas from broadcast owners, revolving around what they can play, wh...