Static on Particular frequency

[Gumball928]

I have an SDS200 with DMR, NXDN and Pro-Voice installed, and I live in NW Oregon.
I have the frequency for Oregon Medivac (155.400) and all I receive is static when the scanner catches that frequency.
Is that because their transmissions are encrypted, or is something else ??

 

[jasonhouk]

A quick query for the state shows the following results:

Freq Out	Freq In	Tone	Callsign	Description	Category	Agency/County	State
155.400				AirLink Critical Care Pine Mountain	Airlink Critical Care Transport - Bend Medevac	Oregon Medevac	OR
155.400			KNDL424	Airlink Pine Mountain remote	Other Fire/EMS Deschutes County	Deschutes	OR
155.400				Samaritan Pacific Communities Hospital	Lincoln County Lincoln County	Lincoln	OR

Also could be a birdie internally in the scanner.

 

[Chris0516]

This: Airlink Critical Care Transport - Bend doesn't show any encryption on that frequency.

 

[dmfalk]

All the above data show analogue, no digital or encryption. It would be nice to know which county, though. You might be too far away, and receiving something else?

 

[Gumball928]

All the above data show analogue, no digital or encryption. It would be nice to know which county, though. You might be too far away, and receiving something else?

Columbia County

 

[Gumball928]

A quick query for the state shows the following results:

Freq Out	Freq In	Tone	Callsign	Description	Category	Agency/County	State
155.400				AirLink Critical Care Pine Mountain	Airlink Critical Care Transport - Bend Medevac	Oregon Medevac	OR
155.400			KNDL424	Airlink Pine Mountain remote	Other Fire/EMS Deschutes County	Deschutes	OR
155.400				Samaritan Pacific Communities Hospital	Lincoln County Lincoln County	Lincoln	OR

Also could be a birdie internally in the scanner.

if it is a "birdie", how do I get rid of it ??

 

[wtp]

just to check.
this is one quick way to bee if it is a birdie
take the antenna off, yes all the way.
if you still hear it, it is either a birdie or something transmitting VERY close to you.
and if you can set the squelch all the way up and still hear it, it is a birdie.
they are internal to the radio and can't be stopped.
i do not know if the IFX thing changes that.

 

[Gumball928]

just to check.
this is one quick way to bee if it is a birdie
take the antenna off, yes all the way.
if you still hear it, it is either a birdie or something transmitting VERY close to you.
and if you can set the squelch all the way up and still hear it, it is a birdie.
they are internal to the radio and can't be stopped.
i do not know if the IFX thing changes that.

Thank you for your assistance, but I tried those steps, and the "static" did not appear. Again, it is ONLY the Oregon Medivac where I get this.

 

[wtp]

OK, i also sent a PM.

 

[dmfalk]

You're too far away from any of the above-mentioned sites. Lifeflight does use the Oregon State Radio Project trunked system, though.

 

[Gumball928]

I have an SDS200 with DMR, NXDN and Pro-Voice installed, and I live in NW Oregon.
I have the frequency for Oregon Medivac (155.400) and all I receive is static when the scanner catches that frequency.
Is that because their transmissions are encrypted, or is something else ??

reading other posts, it is more like a "buzzsaw" noise . . . .

 

[jasonhouk]

reading other posts, it is more like a "buzzsaw" noise . . . .

Definitely sounds like a very weak DMR signal. Can you post a short video or picture of the detailed display (include RSSI on the display) when you are hearing the anomaly?