Vertex Standard FT-1000MP Manual Do Utilizador

A value of 1100 0001 1001 0001 (the 2-s comple-

ment of the previous example) produces a minus off-
set of -9989.375 Hz. See the byte chart below for a
breakdown of the conversion process.

Operating Mode - The operating mode is ex-

pressed as a three-bit binary code in offsets 5 ~ 7. Bit
0 contains a User Mode flag, while Bits 1~4 contain
“dummy” values (unused).

IF Filter Selection - The first data bit (Bit 0) con-

tains a flag indicating normal or alternate reception
mode (see table). The remainder of the data byte con-
tains 2 x 4-bit fields separated by a dummy bit. The
first field holds the 3-bit binary code for the 8.2 MHz
2nd IF filter selection, while the second holds the 455
kHz 3rd IF selection. Codes are listed in the bottom of
the table below.

VFO/MEM Indicators - Five flags indicate the sta-

tus of Clarifier (Rx & Tx), Repeater Offset (+/-), and
Antenna Selection (A/B/RX). Bits 0 and 1 are not used
(dummy values).

Bit 0*

User

Mode

N/A - “dummy bytes

Bit 1

X

Bit 2

X

Bit 3

X

Bit 4

X

Bit 5

Bit 6

Bit 7

Mode Data

(3-bit Code)

Bits 1 ~ 3 are “dummy bits” -
any 1/0 combination may ap-
pear in here, but is insignificant.

LSB

000

USB

001

CW

010

AM

011

FM

100

RTTY 101
PKT

110

0XXXX010 = CW operation, User Mode Off

0 = off
1 = on

Bit 0*

X

Bit 1

X

Bit 2

Bit 3

Bit 4

–RPT

Bit 5

+RPT

Bit 6

RX

CLAR

Bit 7

TX

CLAR

Note: for all flag bits, 1 = On, 0 = Off

for ANT SELECT:
00 = ANT-A, 01 = ANT-B, 10 = RX ANT

ANT

SELECT

1* (flag) 100000110010001 = 4191H = 16,785

16,785 x 0.625 = (–) 9989.375 Hz

*Note - Remember that the first bit is a flag: “0” for

positive offsets, “1” for negative offsets, and is not

included in calculations.

 1* 1

0

0

0

0

1

1

0

0

1

0

0

0

0

1

Bit 0*

Bit 1

Bit 2

Bit 4

Bit 5

Bit 6

Bit 7

6.0k

000

2.4k

001

2.0k

010

500

011

250

100

   0

USB

ENV

LSB

LSB

   1

LSB

SYNC

USB

FM

Thru

000

2.4k

001

2.0k

010

500

011

250

100

X

RX

Mode

Bit 3