136kgb said:
One of our stations has that DAX 6, and last year the box went from 5 kw to 8750 watts on its own with in 30 seconds. What an odd problem isn't it? Do you know what happened the cooling fan for the IPA failed, and the computer took over to compensate for it and made the box ramp up to that then shut the station off. So Harris sent a tech out after we replaced the fan, and replaced a few parts including the back door which had been made for more cooling.
Is it any wonder that the original name before Gates was "Quincy Tin Works"
"Remember at Harris You Can Get Better, But You Can't Pay More!"
HEY that's Motorola's saying! (You may buy better but you'll never spend more

Harris must be copying Mother M's management style...
I have dealt with the SX-1, Gates 1 and 5, MW-1, DX-10, and HT- series, as well as other models but those are the main ones, from Harris and they seem to be fairly solid (except for the SX which you can always trust that when the fuse is blown on the FET, the FET is shot as well...great indicator!! Just replace both and you're fixed..most of the time

........
I didnt like the HT-35 series because everything was soo damned PACKED inside (made me more nervous than a CEC ever did!) and the external power supply was a PITA if you had to work on it.....and WHO the hell decided to put a NON 90deg XLR on the cable they have inside the HT- transmitter that plugs into the Digit Exciter?? GUESS WHAT?? It just BARELY fits with the model they use...DUMB planning!...a 90deg there would have made life soo much better)...I WILL say I liked using the 4CX20000D tube...ran much better than that crappy YC130 CE was using after the EEVs went bye bye (and of course CE changed to their version of the tube; Emodel, later...IT WAS ABOUT TIME!
ONLY issue I EVER had with CEC was on a 816R I sent in for refurb (we had installed a new darker 816R5 at a new site..the old beige R5 was sent for refurb, clean up and retube....had an EEV and I asked for a YC130 to be put in it so all my CECs matched...When it got delivered at the new site, we found the skin was put on the wrong side (AFTER we butted it up to the rack..OUCH!...that was fun taking the end cover off and putting the skin on it so we could SLIDE the cabinet back an inch to make the line to the antenna switch fit as ordered and precut!) AND then after running it into the dummy load and noticing a power drop off I looked in the plate cavity...yep, everything was ok....no loose wirse, plate blocker looked good, 4CX15000EEV tube ok........HUH???? WAIT A MINUTE...where was my YC130?? I called CEC and OOPS, they were quick to show up with the correct tube, socket, etc...and the engineer I spoke to asked me what power out and filament settings were on the tube....oh 7.5V and it was doing about 25KW and headed DOWNward fast..HE was damn surprised the 15000 survived the 7.5V filament!! BUT once the YC130 was installed, she ran just fine...actually I preferred it over the "new" 816R which later turned out to have a control board issue and would not restart on power failures...blew the PC lands out of the motherboard later...well, that found/fixed the problem once the new backplane went in
I had a HT20K as backup at one of my Dallas stations....buying a new plate on switch cost us ove $250 bucks iirc plus overnight shipping ...which was another ridiculous amount.....and I found a replacement switch later at a local shop for less than $20....now thats too high a markup!!.the old Spark-O-Matic did come up and run when I told it to...(even though without SWR protection and it into a 7 bay Celwave with NO deicers, there were days I kept the fingers crossed the transmitter would keep running and NOT blow up....) luckily it was backup to the redundant 816R CE's at the main site......(but as Lark Hadley at KHKS at the time said once over lunch, "all its got to do is sell comemrcials"!)
I agree totally about Nautel...LOVE their reliablility and customer service...I wish I could have speced Nautel Q40s in place of buying TWO 35KW CECs or Harris' at some sites....KLIF 570 uses a 5KW AM Nautel...and it just runs and runs and runs and runs and runs and (well you get the point!)...and in a single 19in rack cabinet too!! One Class C3 that was on the same tower as one of my full Cs runs a Nautel 20KW....and it hardly EVER needs work..it did act up once and I was at the tower installing a new HT35...(to replace an aging CEC 816 27KW that the previous engineer NEVER took care of and it was dying a slow death)..the owner of the C3 who was not an engineer showed up and I offered to help...found out he had a loose inline Molex on the bottom of the exciter control board that carried the main 5V V bus and it was loosing contact..This was done in less than 5 mins with Nautel tech support on the line guiding me through the troubleshoot..once I told them the symptoms, they had it nailed down...(I felt like I was talking to CEC support from Dave's era!!!) I was able to get it temp fixed and they overnighted the parts to the station owner...I was impressed with Nautel's design and operation..and their background in LF/marine stations is well known....For the guy who says his manager says he doesnt know Nautel, have him talk to stations that DO run them.. Again, I WOULD have loved to have gotten a Q40 instead of two 35KW CE or Harris's at some sites...the footprint, cooling and AC eff. is enough to justify it...and go 50% and stay on the air while working on one side??? EGADS!!! An engineer's dream...true, I did have a Harris DX50 at one site and like the 3DX50 design with their hot swap modules....but for solid state FM? I would pick the Nautels over anyone else nowadays.
VistaMax?? Dont get me started on that junky thing....DID they EVER get it to work right??? Logictech, SAS, etc blows it away for less money....when one company I worked for bought it, it never worked right and 6 months later, it was STILL patched around....lotta good that did buying it....UGH! Nice design in theory but in practice, it left too many things to be desired...like WORK (I left the company and later on found out it was still patched around!)
The sales folks I cannot say anything BAD about; some of them would make better engineers than what they have at the factory as far as Im concerned because they bend over backwards and listen to ya

.....the pricing on parts and tech support??....Thats another subject and its been shredded here enough....