If this book represents the transmitter Lyle is referencing, I'm not aware the modules can be removed individually and sent for service; I take care of a 5kw of this series and they are pretty field-repair only boxes. TTBOMK.
Jim "Turbo" Turvaville
SBE Certified Radio Engineer
Turbo Technical Services
From: RADIO DOCTOR <firstname.lastname@example.org>
To: CRTech <email@example.com>
Sent: Saturday, July 29, 2017 12:47 PM
Subject: Re: [CRTech] Harris Gates 2, 2500 watt, one bad output module
I got a photo of the name plate:
Model: GATES TWO 12/16/99
Part number: 994-9203-002
FCC ID: GATES TWO
Serial number: MP01663000001
Frequency: 590 KHZ
Power Out: 2.75 / 0.2 KW 220 VAC 1 Phase 60 HZ
On Sat, 29 Jul 2017, Kevin Kidd wrote:
> Are you sure that it is a Gates 2 (ie, just an updated SX)? They
> really aren't modular in the classic sense. IE, I don't believe that
> you can just remove an RF or PDM amp board to send off for repair.
> And if it is at exactly 50% pwr, it could be an RF problem, PDM amp
> problem, exciter/PDM generator problem or even a PS missing. OR worse
> half a problem on any of those.
> They are fairly easy to test and trouble shoot in the field. The last
> time that I called Harris about the Gates series, they were able to
> offer pretty good troubleshooting advice.
> I don't know if Mike monitors this list but he very likely might have
> working spare boards to swap.
> The later model Harris AM's have removable RF modules but I have never
> worked on one and don't know if the tx will working missing one.
> Kevin C. Kidd, CSRE/AMD
> Lawrenceburg, TN
> AM Ground Systems Company - WD4RAT
> firstname.lastname@example.org -- 866-22-RADIO -- 866-227-2346
> On Wed, Jul 26, 2017 at 6:38 PM, RADIO DOCTOR <email@example.com> wrote:
>> KTHO 590 near Reno, NV says they're at half power. There are two
>> power modules that feed a combiner to make the 2500 watts. One of
>> the modules is bad. Gates Air asks big bucks for a new module, so he
>> wants to get it repaired. But if he takes either module out, it
>> won't come on the air at all.
>> Mike Patton, I suppose you can fix this if someone can explain how to
>> keep it on the air?
>> ...Lyle, the FMeXtra guy
FMeXtra digital SCA systems - encoders and receivers
SCA/FM/FMeXtra radios: fixed & tunable-wood cases-nice sound
Sidekick SCA generators - 67/92kHz-checked and calibrated
Lyle Henry, CPBE THE RADIO DOCTOR K9DKW Los Angeles, CA
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