Narrative:

My wife and I were departing redlands municipal airport on a VFR flight to catalina. Prior to takeoff I contacted norton ground on 121.8 and stated my intentions. I was cleared through norton's air traffic area and told to contact norton tower. I called the tower on 119.45 and was told to report when airborne. We departed and began flying a heading of 240 degrees, climbing to 4500' MSL. I contacted norton tower about 30 seconds after takeoff. I was given a squawk issued by ontario approach through norton tower and was told to report passing through 2700' MSL. About 2 mins later norton tower informed me that a heavy mlt was going to depart runway 6 for closed right traffic. I responded that I had mlt Y in sight on the runway. Mlt Y began its takeoff and as soon as it had enough altitude it began a climbing right turn. I had not expected him to turn so soon and it became apparent to me at this time that Y and I were in immediate conflict. I called norton tower and told him that I was at Y's 1 O'clock position. I did not wait for a reply and immediately began a steep dive from about 2500' to around 2300. About 15 seconds later mlt Y passed directly over my aircraft. At no time that I was on norton's frequency did I hear the tower advise the military pilot of my position or direction of flight. The mlt was using UHF frequencys and I was on VHF. The tower was using UHF/VHF simultaneously. I feel this incident occurred because the tower did not advise mlt Y of my position and also because 2 different frequency bands were being used. Had Y been on VHF, they would have heard my xmissions. I feel that in the interest of safety, all aircraft operating in close proximity under ATC control be on the same radio band and frequency. Many times while talking to norton or ont approach I have heard military aircraft using VHF frequencys. It makes it much easier to understand their intentions when you can hear both sides of the conversation.

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Original NASA ASRS Text

Title: NMAC BETWEEN SMA AND MLT. OPERATIONAL ERROR BY MIL TWR FAC.

Narrative: MY WIFE AND I WERE DEPARTING REDLANDS MUNICIPAL ARPT ON A VFR FLT TO CATALINA. PRIOR TO TKOF I CONTACTED NORTON GND ON 121.8 AND STATED MY INTENTIONS. I WAS CLRED THROUGH NORTON'S ATA AND TOLD TO CONTACT NORTON TWR. I CALLED THE TWR ON 119.45 AND WAS TOLD TO RPT WHEN AIRBORNE. WE DEPARTED AND BEGAN FLYING A HDG OF 240 DEGS, CLBING TO 4500' MSL. I CONTACTED NORTON TWR ABOUT 30 SECS AFTER TKOF. I WAS GIVEN A SQUAWK ISSUED BY ONTARIO APCH THROUGH NORTON TWR AND WAS TOLD TO RPT PASSING THROUGH 2700' MSL. ABOUT 2 MINS LATER NORTON TWR INFORMED ME THAT A HEAVY MLT WAS GOING TO DEPART RWY 6 FOR CLOSED RIGHT TFC. I RESPONDED THAT I HAD MLT Y IN SIGHT ON THE RWY. MLT Y BEGAN ITS TKOF AND AS SOON AS IT HAD ENOUGH ALT IT BEGAN A CLBING RIGHT TURN. I HAD NOT EXPECTED HIM TO TURN SO SOON AND IT BECAME APPARENT TO ME AT THIS TIME THAT Y AND I WERE IN IMMEDIATE CONFLICT. I CALLED NORTON TWR AND TOLD HIM THAT I WAS AT Y'S 1 O'CLOCK POS. I DID NOT WAIT FOR A REPLY AND IMMEDIATELY BEGAN A STEEP DIVE FROM ABOUT 2500' TO AROUND 2300. ABOUT 15 SECS LATER MLT Y PASSED DIRECTLY OVER MY ACFT. AT NO TIME THAT I WAS ON NORTON'S FREQ DID I HEAR THE TWR ADVISE THE MIL PLT OF MY POS OR DIRECTION OF FLT. THE MLT WAS USING UHF FREQS AND I WAS ON VHF. THE TWR WAS USING UHF/VHF SIMULTANEOUSLY. I FEEL THIS INCIDENT OCCURRED BECAUSE THE TWR DID NOT ADVISE MLT Y OF MY POS AND ALSO BECAUSE 2 DIFFERENT FREQ BANDS WERE BEING USED. HAD Y BEEN ON VHF, THEY WOULD HAVE HEARD MY XMISSIONS. I FEEL THAT IN THE INTEREST OF SAFETY, ALL ACFT OPERATING IN CLOSE PROX UNDER ATC CTL BE ON THE SAME RADIO BAND AND FREQ. MANY TIMES WHILE TALKING TO NORTON OR ONT APCH I HAVE HEARD MIL ACFT USING VHF FREQS. IT MAKES IT MUCH EASIER TO UNDERSTAND THEIR INTENTIONS WHEN YOU CAN HEAR BOTH SIDES OF THE CONVERSATION.

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.