Search found 45 matches

by jantonuk
Thu Mar 30, 2017 3:18 pm
Forum: Everything else
Topic: Cumulus buys Gates Air Transmitters
Replies: 9
Views: 449

Cumulus buys Gates Air Transmitters

Just curious how Cumulus is purchasing 70 Gates Air transmitters when Cumulus is on the edge of going bankrupt, and being split into pieces....
by jantonuk
Tue Mar 14, 2017 12:22 pm
Forum: Ask the Engineers
Topic: EAS over Barix
Replies: 8
Views: 242

Re: EAS over Barix

My concern is passing the header tones intact so they can be decoded. Any recommended bit rate?
John
by jantonuk
Mon Mar 13, 2017 4:04 pm
Forum: Ask the Engineers
Topic: EAS over Barix
Replies: 8
Views: 242

EAS over Barix

I'm looking at the possibility of remotely locating the receiver for one of my EAS monitoring assignments. Of course the least expensive way to bring it back to the station is using Barix over the Internet.

Comments?
thanks,
John
by jantonuk
Thu Mar 09, 2017 6:37 pm
Forum: FM Radio
Topic: STL dropouts....back today
Replies: 23
Views: 1051

Re: STL dropouts....back today

A couple of years ago I had to put a 950 pass filter on such a link to get rid of LTE.... just sayin'
by jantonuk
Wed Jan 18, 2017 5:53 pm
Forum: STL Engineering
Topic: Barix levels
Replies: 14
Views: 903

Re: Barix levels

I've contacted their tech support and after I get it figured out I'll post it.

I'm still interested to know if anybody else has run tones through their units and measured the levels.

John
by jantonuk
Tue Jan 17, 2017 4:43 pm
Forum: STL Engineering
Topic: Barix levels
Replies: 14
Views: 903

Re: Barix levels

I complete understand about the noise floor and headroom issues.
Call me picky but I really want to know why the "comes-outta" is 1/3 lower than the "goes-inta"

John
by jantonuk
Sun Jan 15, 2017 1:51 pm
Forum: STL Engineering
Topic: Barix levels
Replies: 14
Views: 903

Re: Barix levels

I already had the Instreamer 100's

What is your experience with the Exstreamer putting out the same level you put in the Instreamer?
John
by jantonuk
Sat Jan 14, 2017 4:24 pm
Forum: STL Engineering
Topic: Barix levels
Replies: 14
Views: 903

Barix levels

I have some older Barix Instreamer 100's. I'm using them to build a backup STL. I have Henry Engineering Matchboxes on either side to handle the +4 dbm conversion to RCA jack -10 dbV that the Barix provides. I set the first Matchbox to take +4 in (1.23 v), and put -10dbV (315mV) out and plug that in...
by jantonuk
Sat Dec 17, 2016 10:21 pm
Forum: Ask the Engineers
Topic: FM radio with excellent selectivity needed
Replies: 13
Views: 751

Re: FM radio with excellent selectivity needed

Very well.
RPT-2 transmitting with rubber ducky, Sangean sitting on the desk next to it, no desense.

Just what the doctor ordered.
by jantonuk
Fri Dec 16, 2016 11:51 pm
Forum: Ask the Engineers
Topic: FM radio with excellent selectivity needed
Replies: 13
Views: 751

Re: FM radio with excellent selectivity needed

The Sangean radio rocks
by jantonuk
Fri Dec 02, 2016 5:23 pm
Forum: Ask the Engineers
Topic: TFT 450 Mhz "STL" receiver
Replies: 2
Views: 240

TFT 450 Mhz "STL" receiver

Hi, I have uncovered an unfinished project from a previous engineering epoch :) I am the "proud" owner of a TFT 5145 "STL" 450 MHz receiver which was purchased (not by me) to be used as a 450 MHz RPU (Marti) receiver. It seems that the TFT is still 50 kHz wide even in the narrow mode while the 450 M...
by jantonuk
Thu Nov 24, 2016 12:17 pm
Forum: Ham Radio
Topic: Ham Engineers, sign in please!
Replies: 103
Views: 22789

Re: Ham Engineers, sign in please!

John Antonuk
AL7ID
Fairbanks, AK
by jantonuk
Mon Nov 14, 2016 1:25 pm
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 79
Views: 3656

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

The word is that all radio networks will be moving to 105 deg West on SES-11 starting Feb and deadline June 30.

see attachments.

John
by jantonuk
Thu Nov 03, 2016 12:53 pm
Forum: Radio Studio Engineering
Topic: Shielded Cat5e/6 connectors and tools
Replies: 18
Views: 542

Re: Shielded Cat5e/6 connectors and tools

Yikes!
Something to consider.
thanks,
John

Anybody else actually used them??
by jantonuk
Wed Nov 02, 2016 1:05 pm
Forum: Radio Studio Engineering
Topic: Spacing XDS units in a rack?
Replies: 4
Views: 206

Re: Spacing XDS units in a rack?

If you have the space, leave an RU.
Air conditioning has been known to fail.
Heat is the enemy.