GA-small aircraft has radio communication problem with ZLA while flying a STAR into ont.

Attributes
ACN	97365
Time
Date	198810
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : pmd airport : ont
State Reference	CA
Altitude	msl bound lower : 10700 msl bound upper : 11000
Environment
Light	Night
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Route In Use	arrival star : star enroute airway : v137
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 120 flight time total : 1900
ASRS Report	97365
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted none taken : unable
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
ATC Facility	other physical facility

Narrative:

While proceeding on V-137 104 degree radial of the cajon 5 arrival to ontario, ca, approximately 30 DME or hespe intersection; communication with la center 128.20 is very intermittent, causing missed calls; radio squelch needs to be full gain to receive. This occurs at 11000' MSL and is worse at depicted area. 10700' MSL of this arrival leg (pmd to hespe intersection). This also occurs with different aircraft at same location.

Original NASA ASRS Text

Title: GA-SMA HAS RADIO COM PROBLEM WITH ZLA WHILE FLYING A STAR INTO ONT.

Narrative: WHILE PROCEEDING ON V-137 104 DEG RADIAL OF THE CAJON 5 ARR TO ONTARIO, CA, APPROX 30 DME OR HESPE INTXN; COM WITH LA CENTER 128.20 IS VERY INTERMITTENT, CAUSING MISSED CALLS; RADIO SQUELCH NEEDS TO BE FULL GAIN TO RECEIVE. THIS OCCURS AT 11000' MSL AND IS WORSE AT DEPICTED AREA. 10700' MSL OF THIS ARR LEG (PMD TO HESPE INTXN). THIS ALSO OCCURS WITH DIFFERENT ACFT AT SAME LOCATION.

Data retrieved from NASA's ASRS site as of August 2007 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.