Prc controller voiced concern regarding radio problems.

Attributes
ACN	768576
Time
Date	200801
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : prc.airport
State Reference	AZ
Aircraft 1
Flight Phase	ground : maintenance
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Experience	controller limited radar : 10 controller radar : 10
ASRS Report	768576
Events
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	ATC Facility Navigational Facility
Primary Problem	ATC Facility
Situations
ATC Facility	communication equipment : prc.tower

Narrative:

We have 2 radio/communications problems described below: while working yesterday; an aircraft called on ground control frequency saying that they could not raise tower on 125.3. X suggested that the transmitter/receiver both needed to be on main or both needed to be on standby and could not be mixed for the frequencys to work properly. The transmitter was on main and the receiver was on standby during this particular incident. This problem needs to be fixed. A short-term solution would be to brief and put a note above the local position. We have an updated vscs. When plugged into the instructor jack; if someone plugs into the trainee jack to assume the position; then the foot pedal no longer works. There have been many times when we don't realize that someone has plugged into our jack and we use the foot pedal and we transmit instructions that are not heard. I don't know if this is something inherent in the system or just at prc.

Original NASA ASRS Text

Title: PRC CTLR VOICED CONCERN REGARDING RADIO PROBLEMS.

Narrative: WE HAVE 2 RADIO/COMS PROBS DESCRIBED BELOW: WHILE WORKING YESTERDAY; AN ACFT CALLED ON GND CTL FREQ SAYING THAT THEY COULD NOT RAISE TWR ON 125.3. X SUGGESTED THAT THE XMITTER/RECEIVER BOTH NEEDED TO BE ON MAIN OR BOTH NEEDED TO BE ON STANDBY AND COULD NOT BE MIXED FOR THE FREQS TO WORK PROPERLY. THE XMITTER WAS ON MAIN AND THE RECEIVER WAS ON STANDBY DURING THIS PARTICULAR INCIDENT. THIS PROB NEEDS TO BE FIXED. A SHORT-TERM SOLUTION WOULD BE TO BRIEF AND PUT A NOTE ABOVE THE LCL POS. WE HAVE AN UPDATED VSCS. WHEN PLUGGED INTO THE INSTRUCTOR JACK; IF SOMEONE PLUGS INTO THE TRAINEE JACK TO ASSUME THE POS; THEN THE FOOT PEDAL NO LONGER WORKS. THERE HAVE BEEN MANY TIMES WHEN WE DON'T REALIZE THAT SOMEONE HAS PLUGGED INTO OUR JACK AND WE USE THE FOOT PEDAL AND WE XMIT INSTRUCTIONS THAT ARE NOT HEARD. I DON'T KNOW IF THIS IS SOMETHING INHERENT IN THE SYS OR JUST AT PRC.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.