Checked the rxsquelch - goes from 500~ to 950 - I take it thats the cause

for now changed the tx PL to 100 and put the rx PL back to 123 so far so good -

some reason can't reach node 2560 anymore (no response at all, not even a failed to connect

- yet I can connect to other nodes. The odd thing is, if there is so much de-sense my receive works fine decoding DTMF

even when the signal I get from the repeater is S1-3 I can't imagine it being de-sensed,

that bad but not sure what to say, repeater runs 80W out of the duplexer 444.450

have to get up to the site sometime and check... Just testing from my HT where I get into a spot that the repeater is

virtually impossible to hear and it hears my signal on Low just fine - I don't know how it would be de-sense but hard to say.

Was reading this http://www.repeater-builder.com/astron/astron-intro-stuff.html

makes the think twice about my astron 50A supply -

Thanks for the ideas...

"Got Root?"

How many software engineers does it take to change a light bulb?

None. It's a hardware problem.

Unix is user friendly. It's just very particular about who it's friends are.

WINDOWS: Will Install Needless Data On Whole System

MICROSOFT: Most Intelligent Customers Realize Our Software Only Fools Teenagers.

A ntennas
P oorly
P laced
L acks
E ngineering

The best way to accelerate a computer running Windows is at 9.81 m/s².

"I get paid to support Windows, I use Linux to get work done."

On Thu, Jan 29, 2015 at 10:16 AM, Steve Agee <n5zua@earthlink.net> wrote:

The easy way to eliminate de-sense (talking to itself) would be to turn off the encoded/TX CTCSS, and see if it still happens. Also, log in to the CLI and run:
ADCKS*CLI> radio tune rxsquelch
both with and without the transmitter keyed, and observe your average RSSI values. If higher when keyed, then you have identified a de-sense issue, and need more isolation between TX & RX.

N5ZUA

On 1/29/2015 11:54 AM, Mark Johnston wrote:
Does anyone know what might cause this, (attached audio file)

I was having this on my node, using a GE Mastr II with URI and DSP to decode the PL tone

123.0 - my first thought was feedback loop from the TX but it just happens without anyone keying up or an ID occurring.

However also considered someone jamming / txing a near dead carrier with a hum on their signal.

Tried reboot, and this would happen whether I was connected or not, it also has the courtesy tone, which is the local tone, as if it was a station here (local).

Changed the PL lower in freq and it all cleared up. Not sure what could have caused it though?

As far as I know nothing has changed at the repeater site, haven't been up there in ~ 2 months since the last change where I raised the antenna, from 10 to 30' and brought it about 15' closer to the repeater.

If anyone has a thought other then some station keying up to cause this, jamming etc... what else could happen to do that?

73's

Mark KC7DMF

_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users To unsubscribe from this list please visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
_______________________________________________
App_rpt-users mailing list
App_rpt-users@ohnosec.org
http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.