/* 420C ram declarations */
extern int z;
extern char func[];				/* function key definitions */
extern char chanmod[];				/* modulation mode */
extern char chanant[];				/* antenna name */
extern char eventime[],evendate[],event[],evenable[];	/* clocked events */
extern char histime[];				/* history time scroll */
extern char dayt[],tyme[],oldayt[],oltyme[];
extern char dname[],dname1[],dname2[],dname3[],dname4[];	/* user defined inputs */
extern char aname[],aname1[],aname2[];		/* user defined meters */
extern char cname[],cname1[],cname2[],cname3[];	/* user defined commands */
extern char password[],idents[];
extern char numb[],treegate[],treelev[],treenabl[],treecmd[];
extern char kernbuf[];

extern char *vobuf,*cmdlist[],*bitlist[],*metlist[],*servlist[],*calclist[];

extern GXHEADER vhptr;

extern unsigned char ptbl1[],ptbl2[];		/* palette tables */
extern unsigned char utemp[];			/* temporary file */
extern unsigned char keyboard[],combuf1[];	/* keyboard buffers */
extern unsigned char remotbuf[],combuf2[];	/* COM2 buffers */
extern unsigned char sysbuf[],combuf3[];	/* COM3 buffers */
extern unsigned char localbuf[],parse[];
extern unsigned char status[],oldstat[],statup[];	/* status buffers */
extern unsigned char temp1[],temp2[];
extern unsigned char prohibs[];			/* prohibited commands */
extern unsigned char histat[];			/* history status scroll */
extern unsigned char control[];			/* control output bytes */

extern int meter[],avmet[],longav[],oldav[],movav[16][64];	/* A/D buffers */
extern int rmsmet[],minmet[],maxmet[];
extern int posit1[],drip[],drep[],paig[],pais1[],paip1[],drer[];
extern int posit2[],paip2[],rfep2[],paep2[],fpwr2[],rpwr[],antdisc[];
extern int posit3[],pais3[],rfep3[],paep3[],paip3[],fpwr3[],pridisc[],secdisc[];
extern int bump1[],bump2[],bump3[];
extern int hismet[];				/* history meter scroll */
extern int scale[];				/* A/D scaling multipliers */
extern int servposn[];				/* current servo positions */
extern int freqposn[];				/* frequency servo positions */
extern int chanposn[];				/* channel servo positions */
extern int fposdate[]; 				/* frequency servo posn store date */
extern int cposdate[];				/* channel servo posn store date */
extern int chanpow[];				/* channel power levels */
extern int powlock[];				/* lockout power level */
extern int ratio[];				/* PA loading resistance */
extern int prioff[];				/* primary discriminator offset */
extern int secoff[];				/* sec discrim offset */
extern int antoff[];				/* antenna discrim offset */
extern int cratio[];				/* chan PA loading resistance */
extern int cprioff[];				/* chan primary discriminator offset */
extern int csecoff[];				/* chan secondary discrim offset */
extern int cantoff[];				/* chan antenna discrim offset */
extern int lolim[],hilim[];			/* warning boundaries */
extern int loservo[],hiservo[];			/* servo end stops */
extern int oldscrn,screen;			/* video screen number */
extern int refresh;				/* status change flag */
extern int inlist;				/* command parsing flag */
extern int histflag;				/* history storage flag */
extern int histno,logno;			/* history, log sequence numbers */
extern int treebit[];				/* programmable controller signal bits */
extern int counter[];				/* misc timers & counters */
extern int music1[],music2[],music3[],music4[];	/* effects parameters */
extern int servo[];				/* servo positions from COM1 */
extern int discrim[];				/* discriminator values */
extern int remo,test;				/* remote, test versions */
extern int rgb[],pal[];				/* palette intensities */
extern int nb;					/* number of bytes in status log */
extern int step1[],step2[],step3[];		/* tune step (delta) sizes */
extern int step1d[],step2d[],step3d[];		/* default bump sizes */

extern unsigned int startime;			/* start thousandths count */

extern long filstart;				/* filament warm-up start time */
extern long elaptime;				/* elapsed time counter */
extern long lolock[];				/* lower lockout frequencies */
extern long hilock[];				/* upper lockout frequencies */
extern long loshunt[];				/* lower shunt frequencies */
extern long hishunt[];				/* upper shunt frequencies */
extern long chanfreq[];				/* channel frequencies */
extern long pend[];				/* preset channel/frequency list */
extern long logpend[];				/* log and hist preset list */
extern long keystart;				/* keyboard activity start time */ 
extern long calc[],olcalc[],longcalc[];		/* calculations */

extern double sqsum[],metersum[];		/* used in metering routine */

extern FILE *stream;				/* used to talk to hard drive */