Reporter claims there is a communication dead space exists in tjzs airspace near 'thank' intersectio...

Attributes
ACN	760083
Time
Date	200710
Place
Locale Reference	intersection : thank
State Reference	US
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
ASRS Report	760083
Events
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Supplementary
Problem Areas	Navigational Facility Airspace Structure
Primary Problem	Navigational Facility
Situations
ATC Facility	communication equipment : tjzs.artcc

Narrative:

There is a 'dead space' in the san juan fir where flts can hear san juan center on frequency 134.3 but san juan center cannot hear the reply from aircraft. It is located in the vicinity of the thank intersection at approximately 21 degrees 30 north latitude. With san juan center controllers working multiple frequencies it becomes a safety concern as well as a frustrating situation for the pilots and controllers.

Original NASA ASRS Text

Title: RPTR CLAIMS THERE IS A COM DEAD SPACE EXISTS IN TJZS AIRSPACE NEAR 'THANK' INTXN AT N21 DEGS 27.6 W 66 DEGS 03.0 ON AIRWAY A319/A523/G432.

Narrative: THERE IS A 'DEAD SPACE' IN THE SAN JUAN FIR WHERE FLTS CAN HEAR SAN JUAN CTR ON FREQUENCY 134.3 BUT SAN JUAN CTR CANNOT HEAR THE REPLY FROM ACFT. IT IS LOCATED IN THE VICINITY OF THE THANK INTXN AT APPROX 21 DEGS 30 NORTH LATITUDE. WITH SAN JUAN CTR CTLRS WORKING MULTIPLE FREQUENCIES IT BECOMES A SAFETY CONCERN AS WELL AS A FRUSTRATING SITUATION FOR THE PLTS AND CTLRS.

Data retrieved from NASA's ASRS site as of January 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.

Reporter claims there is a communication dead space exists in tjzs airspace near 'thank' intersection at N21 degrees 27.6 west 66 degrees 03.0 on airway A319/A523/G432.