No VSWR shutdown? Depends on what type of combining system is in use. In a balanced combiner system the TX won't see any VSWR mismatch coming from the antenna. I've always wondered why it's not common practice to monitor the VSWR of the combined output, where antenna faults can be detected and tran...

Nice find Dave! R4 on the main board is the start up supply resistor, so probably not ideal for measuring residual voltage stored in the main filter caps. In the past when I've worked on power supplies with no bleeder resistor across the main caps, I'll temporarily connect a 100W globe in parallel w...

It might be custom built, but most certainly based on a fairly standard design. Good luck with it

I've seen photos of this power supply and it doesn't look to be overly complicated. In the absence of a schematic I'd suggest a couple of things to try: 1. Check for any obvious problems on the primary side - open main fuse, shorted/open main rectifier, etc.. Also check the main switching FET, it sh...

Looks like a polystyrene film capacitor...

Nautel has a document (IS13004A) that details how to prepare a new compact flash card for the NV series. The recommended capacity for the CF card is 4GB.
PM me your email address and I can send you a copy.

I would rate Statmon among one of the worst pieces of rubbish ever written.

Wouldn't it be easier to cut the plug off and fit a NEMA 6-15 plug and receptacle instead?

Did you ever figure out the file to delete?
I'm wondering if running in Windows 7 Compatibility mode might help too...

I think maybe it's time I relocate to the USA to open a switchmode PSU repair shop

According to the documentation from Harris there are 2 status items in the serial protocol. As to what the difference is, I am not sure. Just pick whichever one works for you :D   Capture.PNG   As for the Z20, the system controller is from the PT transmitter era. There is no serial connection availa...

Seems to be working well .. thanks Chris!

First up, Tour de France and Eurovision are produced natively at 25 frames per second, and at minimum in HD (Euro might be 4K now). Since these are "big ticket" items they will be delivered internationally in high quality. Hence they look good on Aus HD channels. Contrast this to news, where immedia...

They ended up selling us an HT30/35 IPA Power Supply retrofit kit that might work for $1200. I'm happy to report that she's been happy ever since... but this transmitter is less than a decade old and they won't support it? How ridiculous is that! $1200? Is it gold plated and capable of doing your t...

Hello everyone, and Happy New Year! This is a quick repair log of a Broadcast Electronics FXi-60 exciter. It has been in continuous service for a little over 10 years before developing it's first fault - when it went from working just fine to totally dead. When it ended up on my bench, I removed the...