Search found 53 matches

by radio_guru
Thu Jan 24, 2019 12:09 pm
Forum: AM Radio
Topic: Gates One Blows PA Fuses w/ Modulation
Replies: 25
Views: 1218

Re: Gates One Blows PA Fuses w/ Modulation

Let me add one more thing. Do this work into a dummy load or a very broad load. I know of instances where the load is narrow and the lights will randomly flicker indicating bad FET when there are none. At least this way, you know the problem is in the TX and not being influenced by an antenna which ...
by radio_guru
Mon Jan 21, 2019 10:17 am
Forum: Radio Studio Engineering
Topic: Arbitron/Neilsen Encoders
Replies: 4
Views: 435

Re: Arbitron/Neilsen Encoders

As a group owner in PPM measured markets, there is a contract for the issuance and use of the equipment. It's mostly boilerplate with the station agreeing the equipment ownership always remains with "the company," to abide by the rule, and to not reverse engineer the processes involved. The contract...
by radio_guru
Thu Jan 17, 2019 6:29 pm
Forum: AM Radio
Topic: EZ Kleen Filters
Replies: 3
Views: 326

Re: EZ Kleen Filters

I agree with canning the metal mesh filter. I instead use a micro-fiber panel filter trade named Tri-Dek from a company named Tri-Dim. (tridim.com) The MERV 8 poly mesh filter wedges in the opening for a snug tight fit allowing zero bypass leakage. Filters bought by the case of 25 are less than $4/f...
by radio_guru
Sat Oct 27, 2018 5:11 am
Forum: Radio Automation Systems
Topic: Suppressing Windows 10 Update and Forced Reboots
Replies: 17
Views: 786

Re: Suppressing Windows 10 Update and Forced Reboots

The point of this thread is about WIN10 updates with a forced restart taking the station or operation down. :)

RR
by radio_guru
Tue Oct 23, 2018 3:38 pm
Forum: Everything else
Topic: New UPS suggestion
Replies: 9
Views: 540

Re: New UPS suggestion

We bought Legacy UPS's. They're made by the same people who started BEST and continue to offer an updated version of their FERRUPS designs up through 20KVA single phase 208 or 240. I can't speak for whether these updated designs die when the battery fails like the earlier FEERUPS did however. We've ...
by radio_guru
Tue Oct 23, 2018 3:31 pm
Forum: Radio Automation Systems
Topic: Suppressing Windows 10 Update and Forced Reboots
Replies: 17
Views: 786

Re: Suppressing Windows 10 Update and Forced Reboots

Server is not WIN 10 (name your flavor). Server doesn't run well on non-Xeon chips and Non-ECC memory...never mind it's $1200 OS. Server can have it's updates foiled as it's by default a mission critical machine and MS knows that. Why can't MS understand that workstations are also mission critical i...
by radio_guru
Tue Oct 23, 2018 1:06 pm
Forum: Radio Automation Systems
Topic: Suppressing Windows 10 Update and Forced Reboots
Replies: 17
Views: 786

Re: Suppressing Windows 10 Update and Forced Reboots

Don't bother. As one of the posters wrote on the MS forum, MS is playing a game with it's software licensees. Not only have they written the rules in their favor, they also designed the game board. And the game board changes as MS sees fit. Look into IoT or the long term support channel versions to ...
by radio_guru
Sat Oct 20, 2018 12:23 pm
Forum: Radio Automation Systems
Topic: Suppressing Windows 10 Update and Forced Reboots
Replies: 17
Views: 786

Re: Suppressing Windows 10 Update and Forced Reboots

There are a number of registry hacks identified and tried. None work long term. MS has one by one written out the loopholes. All you can do is put them on an isolated switch to the outside world and run them without any means to access the WWW. That means running a machine that is double NIC'd bridg...
by radio_guru
Fri Oct 19, 2018 2:46 pm
Forum: Radio Automation Systems
Topic: Suppressing Windows 10 Update and Forced Reboots
Replies: 17
Views: 786

Re: Suppressing Windows 10 Update and Forced Reboots

We're exploring that issue now. We have found that Win10 has only one version that does not readily install updates as MS wants/chooses. That is Win 10 LTSC (Long Term Service Channel). It is intended, however, for large organizations and can only be bought through a volume licensing plan. It's impl...
by radio_guru
Wed Aug 08, 2018 2:06 pm
Forum: AM Radio
Topic: Capacitor replacement.
Replies: 23
Views: 1106

Re: Capacitor replacement.

With a 138 deg. tower, be very careful about adding anything across the base and not creating some hiccups on 1400. Even an extraordinarily high impedance thing such as a SDC can corrupt the match of a wild base impedance. But as others have mentioned, the capacitor bus at each end should be bonded ...
by radio_guru
Mon Aug 06, 2018 6:54 am
Forum: AM Radio
Topic: Capacitor replacement.
Replies: 23
Views: 1106

Re: Capacitor replacement.

I agree that it will in all reality not on most towers. The original post didn't specify if the tower was 90 deg. or something more wild. Like 130 deg.---Which is sensitive to just about anything that might change. And my suggestion to keep them all the same is more a reflection to avoid creating a ...
by radio_guru
Sat Aug 04, 2018 9:26 am
Forum: AM Radio
Topic: Capacitor replacement.
Replies: 23
Views: 1106

Re: Capacitor replacement.

May be joining in this thread late. Apologies. I just went through this with Harris coils over the past 18 months. I needed to retrofit three towers with Harris OEM coils which didn't have the bypass caps on them originally as part of a site rehab project. (Why not buy new??...well the array was OEM...
by radio_guru
Mon Jun 18, 2018 11:59 am
Forum: AM Radio
Topic: Transmitter plant ambient temps?
Replies: 15
Views: 1339

Re: Transmitter plant ambient temps?

Let me be quick to the point....One needs to consider UPS batteries first and foremost over the SS gear. Lead acid cells designed for UPS service loose considerable capacity and life span when they get too hot or cold regardless of draw or charge state condition. While SS gear can tolerate temps bel...
by radio_guru
Mon Jun 18, 2018 11:49 am
Forum: AM Radio
Topic: Wavering field intensity
Replies: 9
Views: 569

Re: Wavering field intensity

I know which station Mark speaks. I was part of that station's original tune up in 1991. What fun that was... I've seen skywave occur any time of day. Though it's rare, mid-day skywave can occur when the sun is low in the horizon, such as December. I was doing a partial check-up for a station just a...
by radio_guru
Mon Mar 12, 2018 6:25 pm
Forum: FM Radio
Topic: High intensity strobe light repair
Replies: 3
Views: 491

Re: High intensity strobe light repair

It really depends on the manufacturer. I have the old EG&G system now supported by Hughey and Phillips. It's getting pretty costly to keep them going. But H&P still supports them for the most part and they're not too bad to work on. 95% of the problems are in the high voltage areas. Failed relays, d...