diff --git a/RDI_BB_Read.pl b/RDI_BB_Read.pl
old mode 100644
new mode 120000
--- a/RDI_BB_Read.pl
+++ b/RDI_BB_Read.pl
@@ -1,867 +1,1 @@
-#======================================================================
-#                    R D I _ B B _ R E A D . P L 
-#                    doc: Sat Jan 18 14:54:43 2003
-#                    dlm: Mon Apr 29 12:49:40 2013
-#                    (c) 2003 A.M. Thurnherr
-#                    uE-Info: 53 46 NIL 0 0 72 74 2 4 NIL ofnI
-#======================================================================
-
-# Read RDI BroadBand Binary Data Files (*.[0-9][0-9][0-9])
-
-# HISTORY:
-#	Jan 18, 2003: - incepted aboard the Aurora Australis (KAOS)
-#	Jan 19, 2003: - continued
-#	Jan 20, 2003: - replaced INTENSITY by AMPLITUDE
-#	Jan 21, 2003: - changed heading-correction field names
-#	Jan 27, 2003: - cosmetics
-#	Feb 14, 2003: - moved BT setup into header
-#	Mar 15, 2003: - moved 10th xmit voltage into header as BATTERY field
-#				  - removed again, because values are not meaningful
-#	Feb 24, 2004: - continued aboard Nathaniel B. Palmer (Anslope II)
-#				  - BUG: ensemble # was wrong on error messages
-#	Feb 26, 2004: - removed ESW_ERROR and bitmasking of ERROR_STATUS_WORD
-#	Feb 27, 2004: - removed some unused (commented-out) baggage
-#	Mar 11, 2004: - BUG: renamed ACD -> ADC
-#	Mar 18, 2004: - cosmetics
-#	Mar 30, 2004: - rewrote to speed up reading; new version takes
-#					~40% less time
-#	Sep 14, 2005: - made BT data optional (NUMBER_OF_DATA_TYPES)
-#				  - added DATA_FORMAT
-#	Sep 15, 2005: - debugged
-#				  - implement checksum to robustly find EOF
-#				  - renamed to RDI_BB_Read.pl
-#				  - BUG: had used POSIX::mktime with wrong month def!
-#	Oct 30, 2005: - added WH300 FW16.27 file format
-#				  - added DATA_FORMAT_VARIANT
-#				  - changed semantics so that first valid ensemble is
-#				    in E[0] (instead of E[$ensNo-1])
-#	Nov  8, 2005: - replaced UNIXTIME by UNIX_TIME
-#				  - added SECNO
-#	Aug 31: 2006: - added DAYNO
-#	Aug  1, 2007: - BUG: typo in monthLength()
-#	Sep 18, 2007: - modified readHeader() readDta() WBRhdr() WBRens() to
-#					conserve memory (no large arrays as retvals)
-#	Jun  4, 2008: - BUG: BB150 code was not considered on Sep 18, 2007
-#	Aug 15, 2010: - downgraded "unexpected number of data types" from error to warning
-#				  - BUG: WBRcfn had not been set correctly
-#				  - modified to allow processing files without time info
-#	May 12, 2011: - added code to report built-in-test errors
-#	Mar 19, 2013: - added support for WH600 data file (58 fixed leader bytes)
-#	Mar 20, 2013: - removed DATA_FORMAT stuff
-#				  - added support for BT data in subset of ensembles
-#	Apr 29, 2013: - changed semantics to assume EOF when unexpected number of data types
-#					are present in an ensemble
-
-# FIRMWARE VERSIONS:
-#	It appears that different firmware versions generate different file
-#	structures. Currently (Sep 2005) these routines have been tested
-#	with the following firmware versions (as reported by [listHdr]):
-#
-#	Firmw.	DATA_FORMAT(_VARIANT)	Owner 	Cruise	FIXED_LEADER_LENGTH
-#------------------------------------------------------------
-#	05.52	BB150 (1)				UH 		CLIVAR/P16S 42
-#	16.12	WH300 (1)				FSU 	A0304		53
-#	16.21	WH300 (1)				LDEO 	NBP0402		53
-#	16.27	WH300 (2)				Nash 	?			59
-
-# NOTES:
-#	- RDI stores data in VAX/Intel byte order (little endian)
-#	- the output data structure does not exactly mirror the file data
-#	  structure; the header is not stored at all and the fixed leader
-#	  data are not duplicated in every ensemble
-#	- in the RDI files some fields that logically belong into the header
-#	  or the fixed leader (e.g. BT_MIN_CORRELATION) appear in the 
-#	  ensemble data --- these are not read on input
-#	- the field names are generally unabbreviated except for
-#	  BT (= Bottom Track), RL (= Reference Layer), MIN and MAX
-#	- all arrays are 0-referenced, but the ensemble number is not!
-#	- a list of filenames can be be passed to readData() so that
-#	  files split onto several memory cards (typically .000 .001 &c)
-#	  can be read --- not sure if this works, actually
-#	- the RDI manuals are not entirely clear everywhere; I have made
-#	  guesses in some cases, but they should not affect the main
-#	  fields of interest
-#	- some fields in the fixed leader are not really fixed in a LADCP
-#	  setting (e.g. xducer orientation); I'v made an educated guess
-#	  as to which fields to move to the ENS array
-#	- all units except pressure are SI, i.e. in m and m/s
-#	- I don't understand the ERROR_STATUS_WORD; here's what 3 different
-#	  instruments returned:
-#	  	0x88000100	FSU instrument during A0304 (Firmware 16.12)
-#		0x88008180	LDEO uplooker (slave) during NBP0402 (Firmware 16.21)
-#		0x00008180	LDEO downlooker (master) during NBP0402 (Firmware 16.21)
-#	  According to the manual (January 2001 version) this would, for example,
-#	  indicate power failures on both FSU and LDEO slave instruments...
-
-# &readData() returns perl obj (ref to anonymous hash) with the following
-# structure:
-#
-#	NUMBER_OF_DATA_TYPES			scalar		6 (no BT) or 7
-#	ENSEMBLE_BYTES					scalar		?, number of bytes w/o checksum
-#	HEADER_BYTES					scalar		?
-#	FIXED_LEADER_BYTES				scalar		42 for BB150; 53 for WH300, 58 for WH600, 59 for WH300(Nash)
-#	VARIABLE_LEADER_BYTES			scalar		?
-#	VELOCITY_DATA_BYTES				scalar		?
-#	CORRELATION_DATA_BYTES			scalar		?
-#	ECHO_INTENSITY_DATA_BYTES		scalar		?
-#	PERCENT_GOOD_DATA_BYTES			scalar		?
-#	BT_PRESENT						bool		NUMBER_OF_DATA_TYPES == 7
-#	BT_DATA_BYTES					scalar		undefined, ? if BT_PRESENT
-#	CPU_FW_VER						scalar		0--255
-#	CPU_FW_REV						scalar		0--255
-#	BEAM_FREQUENCY					scalar		75, 150, 300, 600, 1200, 2400 [kHz]
-#	CONVEX_BEAM_PATTERN				bool		undefined, 1
-#	CONCAVE_BEAM_PATTERN			bool		undefined, 1
-#	SENSOR_CONFIG					scalar		1--3
-#	XDUCER_HEAD_ATTACHED			bool		undefined, 1
-#	BEAM_ANGLE						scalar		15,20,30,undefined=other [deg]
-#	N_BEAMS							scalar		4--5
-#	N_DEMODS						scalar		2--3(???),undefined=n/a
-#	N_BINS							scalar		1--128
-#	PINGS_PER_ENSEMBLE				scalar		0--16384
-#	BIN_LENGTH						scalar		0.01--64 [m]
-#	BLANKING_DISTANCE				scalar		0-99.99 [m]
-#	MIN_CORRELATION					scalar		0--255
-#	N_CODE_REPETITIONS				scalar		0--255
-#	MIN_PERCENT_GOOD				scalar		1--100 [%]
-#	MAX_ERROR_VELOCITY				scalar		0--5 [m/s]
-#	TIME_BETWEEN_PINGS				scalar		0--? [s]
-#	BEAM_COORDINATES				bool		undefined,1
-#	INSTRUMENT_COORDINATES			bool		undefined,1
-#	SHIP_COORDINATES				bool		undefined,1
-#	EARTH_COORDINATES				bool		undefined,1
-#	PITCH_AND_ROLL_USED				bool		undefined,1
-#	USE_3_BEAM_ON_LOW_CORR			bool		undefined,1
-#	BIN_MAPPING_ALLOWED				bool		undefined,1
-#	HEADING_ALIGNMENT 				scalar		-179.99..180 [deg]
-#	HEADING_BIAS			 		scalar		-179.99..180 [deg]
-#	CALCULATE_SPEED_OF_SOUND		bool		undefined,1
-#	USE_PRESSURE_SENSOR				bool		undefined,1
-#	USE_COMPASS						bool		undefined,1
-#	USE_PITCH_SENSOR				bool		undefined,1
-#	USE_ROLL_SENSOR					bool		undefined,1
-#	USE_CONDUCTIVITY_SENSOR			bool		undefined,1
-#	USE_TEMPERATURE_SENSOR			bool		undefined,1
-#	SPEED_OF_SOUND_CALCULATED		bool		undefined,1
-#	PRESSURE_SENSOR_AVAILABLE		bool		undefined,1
-#	COMPASS_AVAILABLE				bool		undefined,1
-#	PITCH_SENSOR_AVAILABLE			bool		undefined,1
-#	ROLL_SENSOR_AVAILABLE			bool		undefined,1
-#	CONDUCTIVITY_SENSOR_AVAILABLE	bool		undefined,1
-#	TEMPERATURE_SENSOR_AVAILABLE	bool		undefined,1
-#	DISTANCE_TO_BIN1_CENTER			scalar		0--655.35 [m]
-#	TRANSMITTED_PULSE_LENGTH		scalar		0--655.35 [m]
-#	RL_FIRST_BIN					scalar		1--128
-#	RL_LAST_BIN						scalar		1--128
-#	FALSE_TARGET_THRESHOLD			scalar		0--254, undefined=disabled
-#	LOW_LATENCY_SETTING				scalar		0--5(???)
-#	TRANSMIT_LAG_DISTANCE			scalar		0--655.35 [m]
-#	CPU_SERIAL_NUMBER				scalar		undefined, 0--65535 if WH300
-#	NARROW_BANDWIDTH				bool		undefined,1 (only set if WH300)
-#	WIDE_BANDWIDTH					bool		undefined,1 (only set if WH300)
-#	TRANSMIT_POWER					scalar		undefined, 0--255(high) if WH300
-#	TRANSMIT_POWER_HIGH				bool		undefined,1 (only set if WH300)
-#	BT_PINGS_PER_ENSEMBLE			scalar		0--999
-#	BT_DELAY_BEFORE_REACQUIRE		scalar		0--999
-#	BT_MIN_CORRELATION				scalar		0--255
-#	BT_MIN_EVAL_AMPLITUDE			scalar		0--255
-#	BT_MIN_PERCENT_GOOD				scalar		0--100 [%]
-#	BT_MODE							scalar		4,5,6(?)
-#	BT_MAX_ERROR_VELOCITY			scalar		0--5 [m/s], undef=not screened
-#	BT_RL_MIN_SIZE					scalar		0--99.9 [m]
-#	BT_RL_NEAR						scalar		0--999.9 [m]
-#	BT_RL_FAR						scalar		0--999.9 [m]
-#	BT_MAX_TRACKING_DEPTH			scalar		8--999.9 [m]
-#	ENSEMBLE[ensemble_no-1]			array		ensemble info
-#		XDUCER_FACING_UP			bool		undefined, 1
-#		XDUCER_FACING_DOWN			bool		undefined, 1
-#		N_BEAMS_USED				scalar		3,4,5(?)
-#		NUMBER						scalar		1--16777215
-#		BUILT_IN_TEST_ERROR			scalar		?,undefined=none
-#		SPEED_OF_SOUND				scalar		1400--1600 [m/s]
-#		XDUCER_DEPTH				scalar		0.1--999.9 [m]
-#		HEADING						scalar		0--359.99 [deg]
-#		PITCH						scalar		-20.00-20.00 [deg]
-#		ROLL						scalar		-20.00-20.00 [deg]
-#		SALINITY					scalar		0-40 [psu]
-#		TEMPERATURE					scalar		-5.00--40.00 [deg]
-#		MIN_PRE_PING_WAIT_TIME		scalar		? [s]
-#		HEADING_STDDEV				scalar		0-180 [deg]
-#		PITCH_STDDEV				scalar		0.0-20.0 [deg]
-#		ROLL_STDDEV					scalar		0.0-20.0 [deg]
-#		ADC_XMIT_CURRENT			scalar		0--255
-#		ADC_XMIT_VOLTAGE			scalar		0--255
-#		ADC_AMBIENT_TEMPERATURE		scalar		0--255
-#		ADC_PRESSURE_PLUS			scalar		0--255
-#		ADC_PRESSURE_MINUS			scalar		0--255
-#		ADC_ATTITUDE_TEMPERATURE	scalar		0--255
-#		ADC_ATTITUDE				scalar		0--255
-#		ADC_CONTAMINATION			scalar		0--255
-#		ERROR_STATUS_WORD			scalar		undefined, ? (only set if WH300)
-#		PRESSURE					scalar		undefined, ?-? [dbar] (only set if WH300)
-#		PRESSURE_STDDEV				scalar		undefined, ?-? [dbar] (only set if WH300)
-#		DATE						string		MM/DD/YYYY
-#		YEAR						scalar		?
-#		MONTH						scalar		1--12
-#		DAY							scalar		1--31
-#		TIME						string		HH:MM:SS.hh
-#		HOUR						scalar		0--23
-#		MINUTE						scalar		0--59
-#		SECONDS						scalar		0--59.99
-#		UNIX_TIME					scalar		0--?
-#		SECNO						scalar		0--? (number of seconds since daystart)
-#		DAYNO						double		fractional day number since start of current year (1.0 is midnight Jan 1st)
-#		VELOCITY[bin][beam]			scalars		-32.767--32.768 [m/s], undef=bad
-#		CORRELATION[bin][beam]		scalars		1--255, undefined=bad
-#		ECHO_AMPLITUDE[bin][beam]	scalars		0--255
-#		PERCENT_GOOD[bin][beam]		scalars		0--255
-#		BT_RANGE[beam]				scalars		tons [m]
-#		BT_VELOCITY[beam]			scalars		see VELOCITY
-#		BT_CORRELATION[beam]		scalars		see CORRELATION
-#		BT_EVAL_AMPLITUDE[beam]		scalars		0--255
-#		BT_PERCENT_GOOD[beam]		scalars		see PERCENT_GOOD
-#		BT_RL_VELOCITY[beam]		scalars		see VELOCITY
-#		BT_RL_CORRELATION[beam]		scalars		see CORRELATION
-#		BT_RL_ECHO_AMPLITUDE[beam]	scalars		see ECHO_AMPLITUDE
-#		BT_RL_PERCENT_GOOD[beam]	scalars		see PERCENT_GOOD
-#		BT_SIGNAL_STRENGTH[beam]	scalars		0--255
-#		HIGH_GAIN					bool		1, undefined
-#		LOW_GAIN					bool		1, undefined
-
-use strict;
-use Time::Local;						# timegm()
-
-#----------------------------------------------------------------------
-# Time Conversion Subroutines
-#----------------------------------------------------------------------
-
-sub monthLength($$)										# of days in month
-{
-    my($Y,$M) = @_;
-
-    return 31 if ($M==1 || $M==3 || $M==5 || $M==7 ||
-                  $M==8 || $M==10 || $M==12);
-    return 30 if ($M==4 || $M==6 || $M==9 || $M==11);
-    return 28 if ($Y%4 != 0);
-    return 29 if ($Y%100 != 0);
-    return 28 if ($Y%400 > 0);
-    return 29;
-}
-
-{ my($epoch,$lM,$lD,$lY,$ldn);							# static scope
-
-  sub dayNo($$$$$$)
-  {
-	  my($Y,$M,$D,$h,$m,$s) = @_;
-	  my($dn);
-  
-	  if ($Y==$lY && $M==$lM && $D==$lD) {				# same day as last samp
-		  $dn = $ldn;
-	  } else {											# new day
-		  $epoch = $Y unless defined($epoch);			# 1st call
-		  $lY = $Y; $lM = $M; $lD = $D;					# store
-  
-		  for ($dn=0,my($cY)=$epoch; $cY<$Y; $cY++) {	# multiple years
-			  $dn += 337 + &monthLength($Y,$M);
-		  }
-  
-		  $dn += $D;									# day in month
-		  while (--$M > 0) {							# preceding months
-			  $dn += &monthLength($Y,$M);
-		  }
-
-		  $ldn = $dn;									# store
-	  }
-	  return $dn + $h/24 + $m/24/60 + $s/24/3600;
-  }
-
-} # static scope
-
-#----------------------------------------------------------------------
-# Read Data
-#----------------------------------------------------------------------
-
-my($WBRcfn);							# current file name
-my($BIT_errors) = 0;					# built-in-test errors
-
-my($FmtErr) = "%s: illegal %s Id 0x%04x at ensemble %d";
-
-sub WBRhdr($)
-{
-	my($dta) = @_;
-	my($buf,$hid,$did,$Ndt,$B,$W,$i,$dummy,$id,@WBRofs);
-	my($B1,$B2,$B3,$B4,$B5,$B6,$B7,$W1,$W2,$W3,$W4,$W5);
-	
-	#--------------------
-	# HEADER
-	#--------------------
-
-	read(WBRF,$buf,6) == 6 || die("$WBRcfn: $!");
-	($hid,$did,$dta->{ENSEMBLE_BYTES},$dummy,$dta->{NUMBER_OF_DATA_TYPES})
-		= unpack('CCvCC',$buf);
-	$hid == 0x7f || die(sprintf($FmtErr,$WBRcfn,"Header",$hid,0));
-	$did == 0x7f || die(sprintf($FmtErr,$WBRcfn,"Data Source",$did,0));
-	printf(STDERR "\n$WBRcfn: WARNING: unexpected number of data types (%d)\n",
-		$dta->{NUMBER_OF_DATA_TYPES})
-			unless ($dta->{NUMBER_OF_DATA_TYPES} == 6 ||
-					$dta->{NUMBER_OF_DATA_TYPES} == 7);
-	$dta->{BT_PRESENT} = ($dta->{NUMBER_OF_DATA_TYPES} == 7);
-					  
-	read(WBRF,$buf,2*$dta->{NUMBER_OF_DATA_TYPES})
-		== 2*$dta->{NUMBER_OF_DATA_TYPES}
-			|| die("$WBRcfn: $!");
-	@WBRofs = unpack("v$dta->{NUMBER_OF_DATA_TYPES}",$buf);
-
-	$dta->{HEADER_BYTES} 					= $WBRofs[0];
-	$dta->{FIXED_LEADER_BYTES} 				= $WBRofs[1] - $WBRofs[0];
-	$dta->{VARIABLE_LEADER_BYTES}			= $WBRofs[2] - $WBRofs[1];
-	$dta->{VELOCITY_DATA_BYTES}				= $WBRofs[3] - $WBRofs[2];
-	$dta->{CORRELATION_DATA_BYTES}			= $WBRofs[4] - $WBRofs[3];
-	$dta->{ECHO_INTENSITY_DATA_BYTES}		= $WBRofs[5] - $WBRofs[4];
-	if ($dta->{BT_PRESENT}) {
-		$dta->{PERCENT_GOOD_DATA_BYTES}		= $WBRofs[6] - $WBRofs[5];
-		$dta->{BT_DATA_BYTES}				= $dta->{ENSEMBLE_BYTES} - 4 - $WBRofs[6];
-	} else {
-		$dta->{PERCENT_GOOD_DATA_BYTES}		= $dta->{ENSEMBLE_BYTES} - 4 - $WBRofs[5];
-	}
-
-	if ($dta->{FIXED_LEADER_BYTES} == 42) {				# Eric Firing's old instrument I used in 2004
-		$dta->{INSTRUMENT_TYPE} = 'BB150';
-	} elsif ($dta->{FIXED_LEADER_BYTES} == 53) {		# old firmware: no serial numbers
-		$dta->{INSTRUMENT_TYPE} = 'Workhorse';	
-	} elsif ($dta->{FIXED_LEADER_BYTES} == 59) {		# new firmware: with serial numbers
-		$dta->{INSTRUMENT_TYPE} = 'Workhorse';
-    } elsif ($dta->{FIXED_LEADER_BYTES} == 58) {		# DVL
-		$dta->{INSTRUMENT_TYPE} = 'Explorer';
-    } 
-
-#	for ($i=0; $i<$dta->{NUMBER_OF_DATA_TYPES}; $i++) {
-#		printf(STDERR "\nWBRofs[$i] = %d",$WBRofs[$i]);
-#	}
-
-	#----------------------------------
-	# Check Data Format of 1st Ensemble
-	#----------------------------------
-
-	seek(WBRF,$WBRofs[1],0) || die("$WBRcfn: $!");
-	read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-	$id = unpack('v',$buf);
-	$id == 0x0080 || die(sprintf($FmtErr,$WBRcfn,"Variable Leader",$id,1));
-
-	seek(WBRF,$WBRofs[2],0) || die("$WBRcfn: $!");
-	read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-	$id = unpack('v',$buf);
-	$id == 0x0100 || die(sprintf($FmtErr,$WBRcfn,"Velocity Data",$id,1));
-
-	seek(WBRF,$WBRofs[3],0) || die("$WBRcfn: $!");
-	read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-	$id = unpack('v',$buf);
-	$id == 0x0200 || die(sprintf($FmtErr,$WBRcfn,"Correlation Data",$id,1));
-    
-	seek(WBRF,$WBRofs[4],0) || die("$WBRcfn: $!");
-	read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-	$id = unpack('v',$buf);
-	$id == 0x0300 || die(sprintf($FmtErr,$WBRcfn,"Echo Intensity",$id,1));
-
-	seek(WBRF,$WBRofs[5],0) || die("$WBRcfn: $!");
-	read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-	$id = unpack('v',$buf);
-	$id == 0x0400 || die(sprintf($FmtErr,$WBRcfn,"Percent-Good Data",$id,1));
-
-	if ($dta->{BT_PRESENT}) {
-		seek(WBRF,$WBRofs[6],0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-		$id = unpack('v',$buf);
-		$id == 0x0600 || die(sprintf($FmtErr,$WBRcfn,"Bottom Track",$id,1));
-    }
-
-	#--------------------
-	# FIXED LEADER
-	#--------------------
-
-	seek(WBRF,$WBRofs[0],0) || die("$WBRcfn: $!");
-	read(WBRF,$buf,42) == 42 || die("$WBRcfn: $!");
-	($id,$dta->{CPU_FW_VER},$dta->{CPU_FW_REV},$B1,$B2,$dummy,$dummy,$dummy,
-	 $dta->{N_BINS},$dta->{PINGS_PER_ENSEMBLE},$dta->{BIN_LENGTH},
-	 $dta->{BLANKING_DISTANCE},$dummy,$dta->{MIN_CORRELATION},
-	 $dta->{N_CODE_REPETITIONS},$dta->{MIN_PERCENT_GOOD},
-	 $dta->{MAX_ERROR_VELOCITY},$dta->{TIME_BETWEEN_PINGS},$B3,$B4,$B5,
-	 $dta->{HEADING_ALIGNMENT},$dta->{HEADING_BIAS},$B6,$B7,
-	 $dta->{DISTANCE_TO_BIN1_CENTER},$dta->{TRANSMITTED_PULSE_LENGTH},
-	 $dta->{REF_LAYER_FIRST_BIN},$dta->{REF_LAYER_LAST_BIN},
-	 $dta->{FALSE_TARGET_THRESHOLD},$dta->{LOW_LATENCY_SETTING},
-	 $dta->{TRANSMIT_LAG_DISTANCE}) =
-		unpack('vCCCCC3CvvvCCCCvCCCCvvCCvvCCCCv',$buf);
-
-	$id == 0x0000 || die(sprintf($FmtErr,$WBRcfn,"Fixed Leader",$id,0));
-
-    $dta->{BEAM_FREQUENCY} = 2**($B1 & 0x07) * 75;
-    $dta->{CONVEX_BEAM_PATTERN} = 1 if ($B1 & 0x08);
-    $dta->{CONCAVE_BEAM_PATTERN} = 1 if (!($B1 & 0x08));
-    $dta->{SENSOR_CONFIG} = ($B1 & 0x30) >> 4;
-    $dta->{XDUCER_HEAD_ATTACHED} = 1 if ($B1 & 0x40);
-
-	if	  (($B2 & 0x03) == 0x00) { $dta->{BEAM_ANGLE} = 15; }
-	elsif (($B2 & 0x03) == 0x01) { $dta->{BEAM_ANGLE} = 20; }
-	elsif (($B2 & 0x03) == 0x02) { $dta->{BEAM_ANGLE} = 30; }
-	if	  (($B2 & 0xF0) == 0x40) { $dta->{N_BEAMS} = 4; }
-	elsif (($B2 & 0xF0) == 0x50) { $dta->{N_BEAMS} = 5; $dta->{N_DEMODS} = 3; }
-    elsif (($B2 & 0xF0) == 0xF0) { $dta->{N_BEAMS} = 5; $dta->{N_DEMODS} = 2; }
-    
-    $dta->{BIN_LENGTH} /= 100;
-    $dta->{BLANKING_DISTANCE} /= 100;
-
-    $dta->{MAX_ERROR_VELOCITY} /= 1000;
-    $dta->{TIME_BETWEEN_PINGS} *= 60;
-	$dta->{TIME_BETWEEN_PINGS} += $B3 + $B4/100;
-
-	$dta->{BEAM_COORDINATES}		  = 1 if (($B5 & 0x18) == 0x00);
-	$dta->{INSTRUMENT_COORDINATES}	  = 1 if (($B5 & 0x18) == 0x08);
-	$dta->{SHIP_COORDINATES}		  = 1 if (($B5 & 0x18) == 0x10);
-	$dta->{EARTH_COORDINATES}		  = 1 if (($B5 & 0x18) == 0x18);
-	$dta->{PITCH_AND_ROLL_USED} 	  = 1 if ($B5 & 0x04);
-	$dta->{USE_3_BEAM_ON_LOW_CORR}	  = 1 if ($B5 & 0x02);
-    $dta->{BIN_MAPPING_ALLOWED}       = 1 if ($B5 & 0x01);
-        
-	$dta->{HEADING_ALIGNMENT} =
-		($dta->{EARTH_COORDINATES} || $dta->{SHIP_COORDINATES}) ?
-			$dta->{HEADING_ALIGNMENT} / 100 : undef;
-	$dta->{HEADING_BIAS} =
-		($dta->{EARTH_COORDINATES} || $dta->{SHIP_COORDINATES}) ?
-			$dta->{HEADING_BIAS} / 100 : undef;
-
-	$dta->{CALCULATE_SPEED_OF_SOUND}  = 1 if ($B6 & 0x40); 
-	$dta->{USE_PRESSURE_SENSOR} 	  = 1 if ($B6 & 0x20); 
-	$dta->{USE_COMPASS} 			  = 1 if ($B6 & 0x10); 
-	$dta->{USE_PITCH_SENSOR}		  = 1 if ($B6 & 0x08); 
-	$dta->{USE_ROLL_SENSOR} 		  = 1 if ($B6 & 0x04); 
-	$dta->{USE_CONDUCTIVITY_SENSOR}   = 1 if ($B6 & 0x02); 
-    $dta->{USE_TEMPERATURE_SENSOR}    = 1 if ($B6 & 0x01); 
-
-	$dta->{SPEED_OF_SOUND_CALCULATED}	  = 1 if ($B7 & 0x40); 
-	$dta->{PRESSURE_SENSOR_AVAILABLE}	  = 1 if ($B7 & 0x20); 
-	$dta->{COMPASS_AVAILABLE}			  = 1 if ($B7 & 0x10); 
-	$dta->{PITCH_SENSOR_AVAILABLE}		  = 1 if ($B7 & 0x08); 
-	$dta->{ROLL_SENSOR_AVAILABLE}		  = 1 if ($B7 & 0x04); 
-	$dta->{CONDUCTIVITY_SENSOR_AVAILABLE} = 1 if ($B7 & 0x02); 
-    $dta->{TEMPERATURE_SENSOR_AVAILABLE}  = 1 if ($B7 & 0x01); 
-
-    $dta->{DISTANCE_TO_BIN1_CENTER}  /= 100;
-    $dta->{TRANSMITTED_PULSE_LENGTH} /= 100;
-
-    $dta->{FALSE_TARGET_THRESHOLD} = undef
-		if ($dta->{FALSE_TARGET_THRESHOLD} == 255);
-    $dta->{TRANSMIT_LAG_DISTANCE} /= 100;
-
-	if ($dta->{INSTRUMENT_TYPE} eq 'Workhorse') {
-		read(WBRF,$buf,11) == 11 || die("$WBRcfn: $!");
-		($W1,$W2,$W3,$W4,$W5,$dta->{TRANSMIT_POWER}) = 
-			unpack('vvvvvC',$buf);
-
-		$dta->{CPU_SERIAL_NUMBER} = sprintf("%04X%04X%04X%04X",$W1,$W2,$W3,$W4);
-	
-		$dta->{NARROW_BANDWIDTH} = ($W5 == 1);
-		$dta->{WIDE_BANDWIDTH}	 = ($W5 == 0);
-	    $dta->{TRANSMIT_POWER_HIGH} = ($dta->{TRANSMIT_POWER} == 255);
-
-		if ($dta->{FIXED_LEADER_BYTES} == 59) {					# new style with serial number
-			read(WBRF,$buf,6) == 6 || die("$WBRcfn: $!");
-			($dummy,$dta->{SERIAL_NUMBER},$dummy) =				# last bytes is beam angle, but that info has
-				unpack('CVC',$buf);								# already been provided above
-		}
-    }
-
-	if ($dta->{INSTRUMENT_TYPE} eq 'Explorer') {
-		read(WBRF,$buf,16) == 16 || die("$WBRcfn: $!");
-		($dummy,$dummy,$W5,$dummy,$dta->{SERIAL_NUMBER}) = 
-			unpack('VVvvV',$buf);
-		$dta->{NARROW_BANDWIDTH} = ($W5 == 1);
-		$dta->{WIDE_BANDWIDTH}	 = ($W5 == 0);
-    }
-
-	#-----------------------
-	# 1st ENSEMBLE, BT Setup
-	#-----------------------
-
-	if ($dta->{BT_PRESENT}) {
-		seek(WBRF,$WBRofs[6],0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,12) == 12 || die("$WBRcfn: $!");
-		($id,$dta->{BT_PINGS_PER_ENSEMBLE},$dta->{BT_DELAY_BEFORE_REACQUIRE},
-		 $dta->{BT_MIN_CORRELATION},$dta->{BT_MIN_EVAL_AMPLITUDE},
-		 $dta->{BT_MIN_PERCENT_GOOD},$dta->{BT_MODE},
-		 $dta->{BT_MAX_ERROR_VELOCITY}) = unpack('vvvCCCCv',$buf);
-		 
-		$id == 0x0600 ||
-			die(sprintf($FmtErr,$WBRcfn,"Bottom Track",$id,0,tell(WBRF)));
-	
-		$dta->{BT_MAX_ERROR_VELOCITY} =
-			$dta->{BT_MAX_ERROR_VELOCITY} ? $dta->{BT_MAX_ERROR_VELOCITY} / 1000
-										  : undef;
-	
-		seek(WBRF,28,1) || die("$WBRcfn: $!");
-		read(WBRF,$buf,6) == 6 || die("$WBRcfn: $!");
-		($dta->{BT_RL_MIN_SIZE},$dta->{BT_RL_NEAR},$dta->{BT_RL_FAR})
-			= unpack('vvv',$buf);
-	
-		$dta->{BT_RL_MIN_SIZE} /= 10;
-		$dta->{BT_RL_NEAR} /= 10;
-		$dta->{BT_RL_FAR} /= 10;
-	    
-		seek(WBRF,20,1) || die("$WBRcfn: $!");		# skip data
-		read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-	    $dta->{BT_MAX_TRACKING_DEPTH} = unpack('v',$buf) / 10;
-    }
-    
-    return $dta;
-}
-
-sub WBRens($$$)
-{
-	my($nbins,$fixed_leader_bytes,$E) = @_;
-	my($start_ens,$B1,$B2,$B3,$B4,$I,$id,$bin,$beam,$buf,$dummy,@dta,$i,$cs,@WBRofs);
-	my($ens,$ensNo,$dayStart,$ens_length,$BT_present,$hid,$did,$ndt);
-
-	for ($ens=$start_ens=0; 1; $ens++,$start_ens+=$ens_length+2) {
-#		print(STDERR "ens = $ens\n");
-#		print(STDERR "start_ens = $start_ens\n");
-
-		#----------------------------------------
-		# Get ensemble length and # of data types 
-		#----------------------------------------
-
-		seek(WBRF,$start_ens,0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,6) == 6 || last;
-		($hid,$did,$ens_length,$dummy,$ndt) = unpack('CCvCC',$buf);
-		$hid == 0x7f || die(sprintf($FmtErr,$WBRcfn,"Header",$hid,0));
-		$did == 0x7f || die(sprintf($FmtErr,$WBRcfn,"Data Source",$did,0));
-		printf(STDERR "\n$WBRcfn: WARNING: unexpected number of data types (%d, ens=$ens)\n",$ndt),last
-				unless ($ndt == 6 || $ndt == 7);
-		$BT_present = ($ndt == 7);
-		read(WBRF,$buf,2*$ndt) == 2*$ndt || die("$WBRcfn: $!");
-		@WBRofs = unpack("v$ndt",$buf);
-		$fixed_leader_bytes = $WBRofs[1] - $WBRofs[0];
-#		print(STDERR "@WBRofs\n");
-	
-		#-------------------------------
-		# Make Sure Ensemble is Complete
-		#-------------------------------
-
-		# UH BB150 writes incomplete ensembles (i.e. short read
-		# indicates EOF). FSU WH300 has bogus data in incomplete
-		# final ensemble.
-
-		seek(WBRF,$start_ens,0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,$ens_length) == $ens_length || last;
-
-		read(WBRF,$cs,2) == 2 || last;
-		last unless (unpack('%16C*',$buf) == unpack('v',$cs));
-
-		#------------------------------
-		# Variable Leader
-		#------------------------------
-	
-		seek(WBRF,$start_ens+$WBRofs[1],0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,4) == 4 || die("$WBRcfn: $!");
-		($id,$ensNo) = unpack("vv",$buf);
-
-		$id == 0x0080 ||
-			die(sprintf($FmtErr,$WBRcfn,"Variable Leader",$id,$ensNo+1));
-
-		if ($fixed_leader_bytes==42 || $fixed_leader_bytes==58) {			# BB150 & Explorer DVL
-			read(WBRF,$buf,7) == 7 || die("$WBRcfn: $!");
-			(${$E}[$ens]->{YEAR},${$E}[$ens]->{MONTH},
-			 ${$E}[$ens]->{DAY},${$E}[$ens]->{HOUR},${$E}[$ens]->{MINUTE},
-			 ${$E}[$ens]->{SECONDS},$B4) = unpack('CCCCCCC',$buf);
-			${$E}[$ens]->{SECONDS} += $B4/100;
-			${$E}[$ens]->{YEAR} += (${$E}[$ens]->{YEAR} > 80) ? 1900 : 2000;
-		} else {
-			seek(WBRF,7,1) || die("$WBRcfn: $!");							# use Y2K RTC instead
-		}
-
-		read(WBRF,$buf,1) == 1 || die("$WBRcfn: $!");
-		$ensNo += unpack('C',$buf) << 16;
-		${$E}[$ens]->{NUMBER} = $ensNo;
-		
-		read(WBRF,$buf,30) == 30 || die("$WBRcfn: $!");
-		(${$E}[$ens]->{BUILT_IN_TEST_ERROR},${$E}[$ens]->{SPEED_OF_SOUND},
-		 ${$E}[$ens]->{XDUCER_DEPTH},${$E}[$ens]->{HEADING},
-		 ${$E}[$ens]->{PITCH},${$E}[$ens]->{ROLL},
-		 ${$E}[$ens]->{SALINITY},${$E}[$ens]->{TEMPERATURE},
-		 ${$E}[$ens]->{MIN_PRE_PING_WAIT_TIME},$B1,$B2,
-		 ${$E}[$ens]->{HEADING_STDDEV},${$E}[$ens]->{PITCH_STDDEV},
-		 ${$E}[$ens]->{ROLL_STDDEV},${$E}[$ens]->{ADC_XMIT_CURRENT},
-		 ${$E}[$ens]->{ADC_XMIT_VOLTAGE},${$E}[$ens]->{ADC_AMBIENT_TEMPERATURE},
-		 ${$E}[$ens]->{ADC_PRESSURE_PLUS},${$E}[$ens]->{ADC_PRESSURE_MINUS},
-		 ${$E}[$ens]->{ADC_ATTITUDE_TEMPERATURE},${$E}[$ens]->{ADC_ATTITUDE},
-		 ${$E}[$ens]->{ADC_CONTAMINATION})
-			= unpack('vvvvvvvvCCCCCCCCCCCCCC',$buf);
-
-		${$E}[$ens]->{BUILT_IN_TEST_ERROR} = undef
-			unless (${$E}[$ens]->{BUILT_IN_TEST_ERROR});
-		$BIT_errors++ if (${$E}[$ens]->{BUILT_IN_TEST_ERROR});
-
-		${$E}[$ens]->{XDUCER_DEPTH} /= 10;
-		${$E}[$ens]->{HEADING} /= 100;
-		${$E}[$ens]->{PITCH} = unpack('s',pack('S',${$E}[$ens]->{PITCH})) / 100;
-		${$E}[$ens]->{ROLL}  = unpack('s',pack('S',${$E}[$ens]->{ROLL})) / 100;
-		${$E}[$ens]->{TEMPERATURE} =
-			unpack('s',pack('S',${$E}[$ens]->{TEMPERATURE})) / 100;
-		${$E}[$ens]->{MIN_PRE_PING_WAIT_TIME} *= 60;
-		${$E}[$ens]->{MIN_PRE_PING_WAIT_TIME} += $B1 + $B2/100;
-		${$E}[$ens]->{PITCH_STDDEV} /= 10;
-		${$E}[$ens]->{ROLL_STDDEV} /= 10;
-
-		if ($fixed_leader_bytes==53 || $fixed_leader_bytes==59) {			# Workhorse instruments
-			read(WBRF,$buf,23) == 23 || die("$WBRcfn: $!");
-			(${$E}[$ens]->{ERROR_STATUS_WORD},
-		 	 $dummy,${$E}[$ens]->{PRESSURE},${$E}[$ens]->{PRESSURE_STDDEV},
-			 $dummy,${$E}[$ens]->{YEAR},$B3,${$E}[$ens]->{MONTH},
-			 ${$E}[$ens]->{DAY},${$E}[$ens]->{HOUR},${$E}[$ens]->{MINUTE},
-			 ${$E}[$ens]->{SECONDS},$B4)
-				= unpack('VvVVCCCCCCCCC',$buf);
-
-			${$E}[$ens]->{PRESSURE} /= 1000;
-			${$E}[$ens]->{PRESSURE_STDDEV} /= 1000;
-			${$E}[$ens]->{YEAR} *= 100; ${$E}[$ens]->{YEAR} += $B3;
-			${$E}[$ens]->{SECONDS} += $B4/100;
-		}
-
-		if ($fixed_leader_bytes == 58) {									# Explorer DVL
-			read(WBRF,$buf,14) == 14 || die("$WBRcfn: $!");
-			(${$E}[$ens]->{ERROR_STATUS_WORD},
-		 	 $dummy,${$E}[$ens]->{PRESSURE},${$E}[$ens]->{PRESSURE_STDDEV})
-				= unpack('VvVV',$buf);
-			${$E}[$ens]->{PRESSURE} /= 1000;
-			${$E}[$ens]->{PRESSURE_STDDEV} /= 1000;
-		}
-		
-		${$E}[$ens]->{DATE}
-			= sprintf("%02d/%02d/%d",${$E}[$ens]->{MONTH},
-									 ${$E}[$ens]->{DAY},
-									 ${$E}[$ens]->{YEAR});
-		${$E}[$ens]->{TIME}
-			= sprintf("%02d:%02d:%05.02f",${$E}[$ens]->{HOUR},
-										  ${$E}[$ens]->{MINUTE},
-									 	  ${$E}[$ens]->{SECONDS});
-		${$E}[$ens]->{DAYNO}
-			= &dayNo(${$E}[$ens]->{YEAR},${$E}[$ens]->{MONTH},${$E}[$ens]->{DAY},
-					 ${$E}[$ens]->{HOUR},${$E}[$ens]->{MINUTE},${$E}[$ens]->{SECONDS});
-
-		# when analyzing an STA file from an OS75 SADCP (Poseidion),
-		# I noticed that there is no time information. This causes
-		# timegm to bomb. 
-		if (${$E}[$ens]->{MONTH} == 0) {					# no time info
-			${$E}[$ens]->{UNIX_TIME} = 0;
-			${$E}[$ens]->{SECNO} = 0;
-        } else {
-			${$E}[$ens]->{UNIX_TIME}
-				= timegm(0,${$E}[$ens]->{MINUTE},
-						   ${$E}[$ens]->{HOUR},
-						   ${$E}[$ens]->{DAY},
-						   ${$E}[$ens]->{MONTH}-1,			# timegm jan==0!!!
-						   ${$E}[$ens]->{YEAR})
-				  + ${$E}[$ens]->{SECONDS};
-	
-			$dayStart = timegm(0,0,0,${$E}[$ens]->{DAY},
-									 ${$E}[$ens]->{MONTH}-1,
-									 ${$E}[$ens]->{YEAR})
-				unless defined($dayStart);
-	        ${$E}[$ens]->{SECNO} = ${$E}[$ens]->{UNIX_TIME} - $dayStart;
-        }
-
-		seek(WBRF,$start_ens+$WBRofs[0]+4,0)		# System Config / Fixed Leader
-			|| die("$WBRcfn: $!");
-
-		read(WBRF,$buf,5) == 5 || die("$WBRcfn: $!");
-		($B1,$dummy,$dummy,$dummy,${$E}[$ens]->{N_BEAMS_USED})
-			= unpack('CCCCC',$buf);		
-		${$E}[$ens]->{XDUCER_FACING_UP}   = 1 if     ($B1 & 0x80);
-		${$E}[$ens]->{XDUCER_FACING_DOWN} = 1 unless ($B1 & 0x80);
-
-		#--------------------
-		# Velocity Data
-		#--------------------
-
-		my($ndata) = $nbins * 4;
-
-		seek(WBRF,$start_ens+$WBRofs[2],0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,2+$ndata*2) == 2+$ndata*2 || die("$WBRcfn: $!");
-		($id,@dta) = unpack("vv$ndata",$buf);
-
-		$id == 0x0100 ||
-			die(sprintf($FmtErr,$WBRcfn,"Velocity Data",$id,$ens));
-		
-		for ($i=0,$bin=0; $bin<$nbins; $bin++) {
-			for ($beam=0; $beam<4; $beam++,$i++) {
-				${$E}[$ens]->{VELOCITY}[$bin][$beam] =
-					unpack('s',pack('S',$dta[$i])) / 1000
-						if ($dta[$i] != 0x8000);
-			}
-		}
-
-		#--------------------
-		# Correlation Data
-		#--------------------
-
-		seek(WBRF,$start_ens+$WBRofs[3],0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,2+$ndata) == 2+$ndata || die("$WBRcfn: $!");
-		($id,@dta) = unpack("vC$ndata",$buf);
-
-		$id == 0x0200 ||
-			die(sprintf($FmtErr,$WBRcfn,"Correlation Data",$id,$ens));
-		
-		for ($i=0,$bin=0; $bin<$nbins; $bin++) {
-			for ($beam=0; $beam<4; $beam++,$i++) {
-				${$E}[$ens]->{CORRELATION}[$bin][$beam] = $dta[$i]
-					if ($dta[$i]);
-			}
-		}
-
-		#--------------------
-		# Echo Intensity Data
-		#--------------------
-
-		seek(WBRF,$start_ens+$WBRofs[4],0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,2+$ndata) == 2+$ndata || die("$WBRcfn: $!");
-		($id,@dta) = unpack("vC$ndata",$buf);
-
-		$id == 0x0300 ||
-			die(sprintf($FmtErr,$WBRcfn,"Echo Intensity",$id,$ens));
-
-		for ($i=0,$bin=0; $bin<$nbins; $bin++) {
-			for ($beam=0; $beam<4; $beam++,$i++) {
-				${$E}[$ens]->{ECHO_AMPLITUDE}[$bin][$beam] = $dta[$i];
-			}
-		}
-
-		#--------------------
-		# Percent Good Data
-		#--------------------
-
-		seek(WBRF,$start_ens+$WBRofs[5],0) || die("$WBRcfn: $!");
-		read(WBRF,$buf,2+$ndata) == 2+$ndata || die("$WBRcfn: $!");
-		($id,@dta) = unpack("vC$ndata",$buf);
-
-		$id == 0x0400 ||
-			die(sprintf($FmtErr,$WBRcfn,"Percent-Good Data",$id,$ens));
-
-		for ($i=0,$bin=0; $bin<$nbins; $bin++) {
-			for ($beam=0; $beam<4; $beam++,$i++) {
-				${$E}[$ens]->{PERCENT_GOOD}[$bin][$beam] = $dta[$i];
-			}
-		}
-
-		#--------------------
-		# Bottom-Track Data
-		#--------------------
-
-		if ($BT_present) {
-			seek(WBRF,$start_ens+$WBRofs[6],0) || die("$WBRcfn: $!");
-			read(WBRF,$buf,2) == 2 || die("$WBRcfn: $!");
-			$id = unpack('v',$buf);
-	
-			$id == 0x0600 ||
-				die(sprintf($FmtErr,$WBRcfn,"Bottom Track",$id,$ens));
-	
-			seek(WBRF,14,1) || die("$WBRcfn: $!");		# BT config
-	
-			read(WBRF,$buf,28) == 28 || die("$WBRcfn: $!");
-			@dta = unpack('v4v4C4C4C4',$buf);
-		    
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_RANGE}[$beam] = $dta[$beam] / 100
-						if ($dta[$beam]);
-			}
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_VELOCITY}[$beam] =
-					unpack('s',pack('S',$dta[4+$beam])) / 1000
-						if ($dta[4+$beam] != 0x8000);
-			}
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_CORRELATION}[$beam] = $dta[8+$beam]
-					if ($dta[8+$beam]);
-			}
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_EVAL_AMPLITUDE}[$beam] = $dta[12+$beam];
-			}
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_PERCENT_GOOD}[$beam] = $dta[16+$beam];
-			}
-	
-			seek(WBRF,6,1) || die("$WBRcfn: $!");		# BT config
-	
-			read(WBRF,$buf,20) == 20 || die("$WBRcfn: $!");
-			@dta = unpack('v4C4C4C4',$buf);
-	
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_RL_VELOCITY}[$beam] =
-					unpack('s',pack('S',$dta[$beam])) / 1000
-						if ($dta[$beam] != 0x8000);
-			}
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_RL_CORRELATION}[$beam] = $dta[4+$beam]
-					if ($dta[4+$beam]);
-			}
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_RL_ECHO_AMPLITUDE}[$beam] = $dta[8+$beam];
-			}
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_RL_PERCENT_GOOD}[$beam] = $dta[12+$beam];
-			}
-	
-			seek(WBRF,2,1) || die("$WBRcfn: $!");		# BT config
-	
-			read(WBRF,$buf,9) == 9 || die("$WBRcfn: $!");
-			@dta = unpack('C4CC4',$buf);
-	
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_SIGNAL_STRENGTH}[$beam] = $dta[$beam];
-			}
-			${$E}[$ens]->{HIGH_GAIN} if	   ($dta[4]);
-			${$E}[$ens]->{LOW_GAIN}	unless ($dta[4]);
-			for ($beam=0; $beam<4; $beam++) {
-				${$E}[$ens]->{BT_RANGE}[$beam] += $dta[5+$beam] * 655.36
-					if ($dta[5+$beam]);
-	        }
-	    } # BT present
-	} # ens loop
-}
-
-sub readHeader(@)
-{
-	my($fn,$dta) = @_;
-	$WBRcfn = $fn;
-    open(WBRF,$WBRcfn) || die("$WBRcfn: $!");
-    WBRhdr($dta);    
-}
-
-sub readData(@)
-{
-	my($fn,$dta) = @_;
-	$WBRcfn = $fn;
-    open(WBRF,$WBRcfn) || die("$WBRcfn: $!");
-    WBRhdr($dta);
-	WBRens($dta->{N_BINS},$dta->{FIXED_LEADER_BYTES},
-		   \@{$dta->{ENSEMBLE}});
-	print(STDERR "$WBRcfn: $BIT_errors built-in-test errors\n")
-		if ($BIT_errors);
-}
-
-sub checkEnsemble($$)
-{
-	my($dta,$ens) = @_;
-	printf(STDERR "3 beams used in ensemble #$dta->{ENSEMBLE}[$ens]->{NUMBER}\n")
-		if ($dta->{ENSEMBLE}[$ens]->{N_BEAMS_USED} < 4);
-	die("BIT error in ensemble $dta->{ENSEMBLE}[$ens]->{NUMBER}\n")
-		if defined($dta->{ENSEMBLE}[$ens]->{BUILT_IN_TEST_ERROR});
-#
-#	ERROR_STATUS_WORD CONTAINS APPARENTLY INSTRUMENT-SPECIFIC VALUES
-#	=> CHECK DISABLED
-#
-#	die(sprintf("ESW = 0x%08lx in ensemble #%s\n",
-#				 $dta->{ENSEMBLE}[$ens]->{ERROR_STATUS_WORD},
-#				 $dta->{ENSEMBLE}[$ens]->{NUMBER}))
-#		if ($dta->{ENSEMBLE}[$ens]->{ESW_ERROR});
-}
-
-1;      # return true for all the world to see
+./RDI_PD0_IO.pl
\ No newline at end of file