Search found 154 matches

by davek
Wed Aug 16, 2017 6:22 pm
Forum: FM Radio
Topic: Nautel NV20 repair/restoration
Replies: 3
Views: 169

Re: Nautel NV20 repair/restoration

(placeholder for initial testing)
by davek
Wed Aug 16, 2017 6:22 pm
Forum: FM Radio
Topic: Nautel NV20 repair/restoration
Replies: 3
Views: 169

Re: Nautel NV20 repair/restoration

(placeholder for PA repairs)
by davek
Wed Aug 16, 2017 6:18 pm
Forum: FM Radio
Topic: Nautel NV20 repair/restoration
Replies: 3
Views: 169

Re: Nautel NV20 repair/restoration

(placeholder for power supply repairs post)
by davek
Wed Aug 16, 2017 6:17 pm
Forum: FM Radio
Topic: Nautel NV20 repair/restoration
Replies: 3
Views: 169

Nautel NV20 repair/restoration

Thought the board might be interested to follow the progress of a project I'm currently working on, which is the repair and restoration of a Nautel NV20 transmitter. This TX was installed about 7 years ago; I imagine some of you thinking "why does a 7 year old Nautel need to be restored ?". Well sad...
by davek
Wed Jun 28, 2017 5:45 pm
Forum: FM Radio
Topic: Nautel NV10LT
Replies: 21
Views: 1947

Re: Nautel NV10LT

We have had an NV30 for about 7 years. Had a problem at first blowing PA module 7. After we installed a shorting stub next to the output that problem ended. Now we just go thru a power supply or two a year. Fixed a couple by cleaning the bug juice out of the fan. If anyone (davek) has any tips on r...
by davek
Tue Jun 20, 2017 6:50 am
Forum: FM Radio
Topic: Nautel NV10LT
Replies: 21
Views: 1947

Re: Nautel NV10LT

.. is there any service information available for the old Tectrol power supplies used in the NV series? From us, no - it was part of the agreement with the former Tectrol that service information wasn't part of the deal. I assume they didn't want us to start building them ourselves! However, CUI (c...
by davek
Tue Jun 06, 2017 5:27 am
Forum: TV Engineering
Topic: DVB Transport Stream Checking using UDP
Replies: 2
Views: 262

Re: DVB Transport Stream Checking using UDP

The DTU-245 doesn't handle TS over IP.

If you want to look at TS over IP, you can use VLC to view either the UDP or RTP stream (I'm assuming that's what you want to do, your original post is lacking in detail...)
by davek
Wed May 17, 2017 5:56 am
Forum: FM Radio
Topic: Nautel NV10LT
Replies: 21
Views: 1947

Re: Nautel NV10LT

Sorry to revive an old topic (and this is mostly directed at Jeff) .. is there any service information available for the old Tectrol power supplies used in the NV series? I've been repairing and modifying a bunch of them (replacing the awful green semiconductor insulators with proper silicon pads), ...
by davek
Mon May 01, 2017 5:03 pm
Forum: FM Radio
Topic: BW Broadcast transmitter
Replies: 10
Views: 753

Re: BW Broadcast transmitter

Sounds like a switch-mode power supply refused to re-start after being turned off...
by davek
Tue Mar 07, 2017 5:29 pm
Forum: General Computers
Topic: Unplayable audio files
Replies: 9
Views: 577

Re: Unplayable audio files

Any chance of making a file available.. ?
by davek
Thu Mar 02, 2017 3:54 pm
Forum: FM Radio
Topic: High Pitched Tone in FM Audio?
Replies: 23
Views: 1451

Re: High Pitched Tone in FM Audio?

grich wrote:
Thu Mar 02, 2017 3:40 pm
davek wrote:
Thu Mar 02, 2017 3:38 pm
Here you go :)

FM-535-WCF.pdf
FM-580-WCF.pdf
You beat me to it! :D
Must have been the coffee I had for breakfast :lol:
by davek
Thu Mar 02, 2017 3:38 pm
Forum: FM Radio
Topic: High Pitched Tone in FM Audio?
Replies: 23
Views: 1451

Re: High Pitched Tone in FM Audio?

Here you go :)
FM-535-WCF.pdf
(197.37 KiB) Downloaded 58 times
FM-580-WCF.pdf
(56.35 KiB) Downloaded 48 times
by davek
Wed Feb 22, 2017 3:45 am
Forum: FM Radio
Topic: Z 10 rigs
Replies: 4
Views: 468

Re: Z 10 rigs

I have also successfully repaired Z PA modules .. transistors were purchased from DigiKey.

Also, having since totally re-built the rectifier modules using different fuses, I have not had a single PSU TAP fault in the 18 months since installing them. :D
by davek
Wed Feb 08, 2017 3:11 am
Forum: TV Engineering
Topic: 8 vsb test gear
Replies: 5
Views: 396

Re: 8 vsb test gear

by davek
Mon Feb 06, 2017 3:15 pm
Forum: TV Studio Engineering
Topic: 5.1 to 2.0 downmix card?
Replies: 2
Views: 504

Re: 5.1 to 2.0 downmix card?

Ward Beck make a OpenGear card which might work for you .. model number is M6205A-3G