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Hamlib/kenwood/k3.c

718 wiersze
19 KiB
C
Czysty Wina Historia

/*
* Hamlib Kenwood backend - Elecraft K3 description
* Copyright (c) 2002-2009 by Stephane Fillod
* Copyright (C) 2010,2011,2012,2013 by Nate Bargmann, n0nb@arrl.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* See the file 'COPYING.LIB' in the main Hamlib distribution directory for
* the complete text of the GNU Lesser Public License version 2.1.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <hamlib/rig.h>
#include "kenwood.h"
#include "bandplan.h"
#include "elecraft.h"
#include "token.h"
#include "cal.h"
#define K3_MODES (RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_SSB|\
RIG_MODE_RTTY|RIG_MODE_RTTYR|RIG_MODE_FM|RIG_MODE_AM|RIG_MODE_PKTUSB|\
RIG_MODE_PKTLSB)
#define K3_FUNC_ALL (RIG_FUNC_NB|RIG_FUNC_LOCK|RIG_FUNC_RIT|RIG_FUNC_XIT)
#define K3_LEVEL_ALL (RIG_LEVEL_ATT|RIG_LEVEL_PREAMP|RIG_LEVEL_AGC|RIG_LEVEL_SQL|\
RIG_LEVEL_STRENGTH|RIG_LEVEL_RFPOWER|RIG_LEVEL_KEYSPD|\
RIG_LEVEL_AF|RIG_LEVEL_RF|RIG_LEVEL_MICGAIN|RIG_LEVEL_RAWSTR)
#define K3_VFO (RIG_VFO_A|RIG_VFO_B)
#define K3_VFO_OP (RIG_OP_UP|RIG_OP_DOWN)
#define K3_ANTS (RIG_ANT_1|RIG_ANT_2)
/* kenwood_transaction() will add this to command strings
* sent to the rig and remove it from strings returned from
* the rig, so no need to append ';' manually to command strings.
*/
static struct kenwood_priv_caps k3_priv_caps = {
.cmdtrm = EOM_KEN,
};
/* K3 specific function declarations */
int k3_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width);
int k3_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width);
int k3_set_vfo(RIG *rig, vfo_t vfo);
int k3_set_ext_level(RIG *rig, vfo_t vfo, token_t token, value_t val);
int k3_get_ext_level(RIG *rig, vfo_t vfo, token_t token, value_t *val);
int k3_set_rit(RIG * rig, vfo_t vfo, shortfreq_t rit);
int k3_set_xit(RIG * rig, vfo_t vfo, shortfreq_t rit);
int k3_set_split_mode(RIG *rig, vfo_t vfo, rmode_t tx_mode, pbwidth_t tx_width);
int k3_get_split_mode(RIG *rig, vfo_t vfo, rmode_t *tx_mode, pbwidth_t *tx_width);
int k3_get_level(RIG *rig, vfo_t vfo, setting_t level, value_t *val);
int k3_get_func(RIG *rig, vfo_t vfo, setting_t func, int *status);
/* Private helper functions */
int set_rit_xit(RIG *rig, shortfreq_t rit);
/*
* K3 rig capabilities.
* This kit can recognize a large subset of TS-570/K2 commands and has many
* extensions of its own. Extension backend functions to standard Kenwood
* command are defined in elecraft.c (shared with K2) and in this file.
*
* Part of info comes from http://www.elecraft.com/K2_Manual_Download_Page.htm#K3
* look for K3 Programmer's Reference PDF
*
* Wayne Burdick, N6KR, advises that the forthcoming KX3 (prototype shown at
* Dayton Hamvention 2011) will have an identical command set to the K3.
*/
const struct rig_caps k3_caps = {
.rig_model = RIG_MODEL_K3,
.model_name = "K3/KX3",
.mfg_name = "Elecraft",
.version = "20130118",
.copyright = "LGPL",
.status = RIG_STATUS_BETA,
.rig_type = RIG_TYPE_TRANSCEIVER,
.ptt_type = RIG_PTT_RIG,
.dcd_type = RIG_DCD_RIG,
.port_type = RIG_PORT_SERIAL,
.serial_rate_min = 4800,
.serial_rate_max = 38400,
.serial_data_bits = 8,
.serial_stop_bits = 2,
.serial_parity = RIG_PARITY_NONE,
.serial_handshake = RIG_HANDSHAKE_NONE,
.write_delay = 0, /* Timing between bytes */
.post_write_delay = 100, /* Timing between command strings */
.timeout = 600, /* FA and FB make take up to 500 ms on band change */
.retry = 3,
.has_get_func = K3_FUNC_ALL,
.has_set_func = K3_FUNC_ALL,
.has_get_level = K3_LEVEL_ALL,
.has_set_level = RIG_LEVEL_SET(K3_LEVEL_ALL),
.has_get_parm = RIG_PARM_NONE,
.has_set_parm = RIG_PARM_NONE, /* FIXME: parms */
.level_gran = {}, /* FIXME: granularity */
.parm_gran = {},
.extlevels = elecraft_ext_levels,
.extparms = kenwood_cfg_params,
.preamp = { 14, RIG_DBLST_END, },
.attenuator = { 10, RIG_DBLST_END, },
.max_rit = Hz(9990),
.max_xit = Hz(9990),
.max_ifshift = Hz(0),
.vfo_ops = K3_VFO_OP,
.targetable_vfo = RIG_TARGETABLE_FREQ,
.transceive = RIG_TRN_RIG,
.bank_qty = 0,
.chan_desc_sz = 0,
.chan_list = { RIG_CHAN_END },
.rx_range_list1 = {
{kHz(500), MHz(30), K3_MODES, -1, -1, K3_VFO, K3_ANTS},
{ MHz(48), MHz(54), K3_MODES, -1,- 1, K3_VFO, K3_ANTS},
RIG_FRNG_END,
}, /* rx range */
.tx_range_list1 = {
FRQ_RNG_HF(1, K3_MODES, mW(10), W(10), K3_VFO, K3_ANTS),
FRQ_RNG_6m(1, K3_MODES, mW(10), W(10), K3_VFO, K3_ANTS),
RIG_FRNG_END,
}, /* tx range */
.rx_range_list2 = {
{kHz(500), MHz(30), K3_MODES, -1, -1, K3_VFO, K3_ANTS},
{ MHz(48), MHz(54), K3_MODES, -1, -1, K3_VFO, K3_ANTS},
RIG_FRNG_END,
}, /* rx range */
.tx_range_list2 = {
FRQ_RNG_HF(2, K3_MODES, mW(10), W(10), K3_VFO, K3_ANTS),
FRQ_RNG_6m(2, K3_MODES, mW(10), W(10), K3_VFO, K3_ANTS),
RIG_FRNG_END,
}, /* tx range */
.tuning_steps = {
{K3_MODES, 1},
RIG_TS_END,
},
/* mode/filter list, remember: order matters! */
/* Values are arbitrary based on common K3 filter options. */
.filters = {
{RIG_MODE_SSB, kHz(2.7)},
{RIG_MODE_SSB, kHz(2.8)},
{RIG_MODE_SSB, kHz(1.8)},
{RIG_MODE_SSB, RIG_FLT_ANY},
{RIG_MODE_CW|RIG_MODE_CWR, kHz(1)},
{RIG_MODE_CW|RIG_MODE_CWR, kHz(2.8)},
{RIG_MODE_CW|RIG_MODE_CWR, Hz(50)},
{RIG_MODE_CW|RIG_MODE_CWR, RIG_FLT_ANY},
{RIG_MODE_RTTY|RIG_MODE_RTTYR, kHz(2)},
{RIG_MODE_RTTY|RIG_MODE_RTTYR, kHz(2.7)},
{RIG_MODE_RTTY|RIG_MODE_RTTYR, Hz(500)},
{RIG_MODE_RTTY|RIG_MODE_RTTYR, RIG_FLT_ANY},
{RIG_MODE_PKTUSB|RIG_MODE_PKTLSB, kHz(2.7)},
{RIG_MODE_PKTUSB|RIG_MODE_PKTLSB, kHz(2.8)},
{RIG_MODE_PKTUSB|RIG_MODE_PKTLSB, Hz(50)},
{RIG_MODE_PKTUSB|RIG_MODE_PKTLSB, RIG_FLT_ANY},
{RIG_MODE_AM, kHz(6)},
{RIG_MODE_AM, kHz(13)},
{RIG_MODE_AM, kHz(2.7)},
{RIG_MODE_AM, RIG_FLT_ANY},
{RIG_MODE_FM, kHz(13)}, /* TBC */
RIG_FLT_END,
},
.priv = (void *)&k3_priv_caps,
.rig_init = kenwood_init,
.rig_cleanup = kenwood_cleanup,
.rig_open = elecraft_open,
.set_freq = kenwood_set_freq,
.get_freq = kenwood_get_freq,
.set_mode = k3_set_mode,
.get_mode = k3_get_mode,
.set_vfo = k3_set_vfo,
.get_vfo = kenwood_get_vfo_if,
.set_split_mode = k3_set_split_mode,
.get_split_mode = k3_get_split_mode,
.set_split_vfo = kenwood_set_split_vfo,
.get_split_vfo = kenwood_get_split_vfo_if,
.set_rit = k3_set_rit,
.get_rit = kenwood_get_rit,
.set_xit = k3_set_xit,
.get_xit = kenwood_get_xit,
.get_ptt = kenwood_get_ptt,
.set_ptt = kenwood_set_ptt,
.get_dcd = kenwood_get_dcd,
.set_func = kenwood_set_func,
.get_func = k3_get_func,
.set_ext_parm = kenwood_set_ext_parm,
.get_ext_parm = kenwood_get_ext_parm,
.set_level = kenwood_set_level,
.get_level = k3_get_level,
.set_ext_level = k3_set_ext_level,
.get_ext_level = k3_get_ext_level,
.vfo_op = kenwood_vfo_op,
.set_trn = kenwood_set_trn,
.get_trn = kenwood_get_trn,
.set_powerstat = kenwood_set_powerstat,
.get_powerstat = kenwood_get_powerstat,
.set_ant = kenwood_set_ant_no_ack,
.get_ant = kenwood_get_ant,
.send_morse = kenwood_send_morse,
};
/*
* K3 extension function definitions follow
*/
/* k3_get_mode()
*
* The K3 supports a new command, DT, to query the data submode so
* RIG_MODE_PKTUSB and RIG_MODE_PKTLSB can be supported.
*/
int k3_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
if (!rig || !mode || !width)
return -RIG_EINVAL;
char buf[KENWOOD_MAX_BUF_LEN];
int err;
rmode_t temp_m;
pbwidth_t temp_w;
err = kenwood_get_mode(rig, vfo, &temp_m, &temp_w);
if (err != RIG_OK)
return err;
if (temp_m == RIG_MODE_RTTY) {
err = kenwood_safe_transaction(rig, "DT", buf, KENWOOD_MAX_BUF_LEN, 4);
if (err != RIG_OK) {
rig_debug(RIG_DEBUG_VERBOSE, "%s: Cannot read K3 DT value\n",
__func__);
return err;
}
switch(atoi(&buf[2])) {
case K3_MODE_DATA_A:
*mode = RIG_MODE_PKTUSB;
break;
case K3_MODE_AFSK_A:
*mode = RIG_MODE_RTTY;
break;
default:
rig_debug(RIG_DEBUG_VERBOSE, "%s: unsupported data sub-mode %c\n",
__func__, buf[2]);
return -RIG_EINVAL;
}
} else if (temp_m == RIG_MODE_RTTYR) {
err = kenwood_safe_transaction(rig, "DT", buf, KENWOOD_MAX_BUF_LEN, 4);
if (err != RIG_OK) {
rig_debug(RIG_DEBUG_VERBOSE, "%s: Cannot read K3 DT value\n",
__func__);
return err;
}
switch(atoi(&buf[2])) {
case K3_MODE_DATA_A:
*mode = RIG_MODE_PKTLSB;
break;
case K3_MODE_AFSK_A:
*mode = RIG_MODE_RTTYR;
break;
default:
rig_debug(RIG_DEBUG_VERBOSE, "%s: unsupported data sub-mode %c\n",
__func__, buf[2]);
return -RIG_EINVAL;
}
} else {
*mode = temp_m;
}
/* The K3 is not limited to specific filter widths so we can query
* the actual bandwidth using the BW command
*/
err = kenwood_safe_transaction(rig, "BW", buf, KENWOOD_MAX_BUF_LEN, 7);
if (err != RIG_OK) {
rig_debug(RIG_DEBUG_VERBOSE, "%s: Cannot read K3 BW value\n", __func__);
return err;
}
*width = atoi(&buf[2]) * 10;
return RIG_OK;
}
/* k3_set_mode()
*
* As with k3_get_mode(), the K3 can also set the data submodes which allows
* use of RIG_MODE_PKTUSB and RIG_MODE_PKLSB.
*/
int k3_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
if (!rig)
return -RIG_EINVAL;
int err;
char cmd_s[16];
switch (mode) {
case RIG_MODE_PKTLSB:
mode = RIG_MODE_RTTYR;
strncpy(cmd_s, "DT0", 5);
break;
case RIG_MODE_PKTUSB:
mode = RIG_MODE_RTTY;
strncpy(cmd_s, "DT0", 5);
break;
case RIG_MODE_RTTY:
case RIG_MODE_RTTYR:
strncpy(cmd_s, "DT1", 5);
break;
default:
break;
}
/* kenwood_set_mode() ignores width value for K2/K3/TS-570 */
err = kenwood_set_mode(rig, vfo, mode, width);
if (err != RIG_OK)
return err;
/* Now set data sub-mode. K3 needs to be in a DATA mode before setting
* the sub-mode.
*/
if (mode == RIG_MODE_PKTLSB || mode == RIG_MODE_PKTUSB
|| mode == RIG_MODE_RTTY || mode == RIG_MODE_RTTYR) {
err = kenwood_simple_cmd(rig, cmd_s);
if (err != RIG_OK)
return err;
}
/* and set the requested bandwidth. On my K3, the bandwidth is rounded
* down to the nearest 50 Hz, i.e. sending BW0239; will cause the bandwidth
* to be set to 2.350 kHz. As the width must be divided by 10, 10 Hz values
* between 0 and 4 round down to the nearest 100 Hz and values between 5
* and 9 round down to the nearest 50 Hz.
*
* width string value must be padded with leading '0' to equal four
* characters.
*/
/* passband widths vary by mode so gather lower and upper limits */
pbwidth_t pb_nar = rig_passband_narrow(rig, mode);
pbwidth_t pb_wid = rig_passband_wide(rig, mode);
if (width < 0)
width = labs(width);
if (width == RIG_PASSBAND_NORMAL)
width = rig_passband_normal(rig, mode);
else if (width < pb_nar)
width = pb_nar;
else if (width > pb_wid)
width = pb_wid;
sprintf(cmd_s, "BW%04ld", width / 10);
err = kenwood_simple_cmd(rig, cmd_s);
if (err != RIG_OK)
return err;
return RIG_OK;
}
/* The K3 changes "VFOs" by swapping the contents of
* the upper display with the lower display. This function
* accomplishes this by sending the emulation command, SWT11;
* to the K3 to emulate a tap of the A/B button.
*/
int k3_set_vfo(RIG *rig, vfo_t vfo)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
if (!rig)
return -RIG_EINVAL;
int err;
switch (vfo) {
case RIG_VFO_B:
err = kenwood_simple_cmd(rig, "SWT11");
if (err != RIG_OK)
return err;
break;
default:
break;
}
return RIG_OK;
}
/* Support the RC command for clearing RIT/XIT,
*
* token Defined in elecraft.h or this file
* val Type depends on token type from confparams structure:
* NUMERIC: val.f
* COMBO: val.i, starting from 0 Index to a string table.
* STRING: val.cs for set, val.s for get
* CHECKBUTTON: val.i 0/1
*
* See Private Elecraft extra levels definitions in elecraft.c and
* private token #define in elecraft.h
*/
int k3_set_ext_level(RIG *rig, vfo_t vfo, token_t token, value_t val)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
if (!rig)
return -RIG_EINVAL;
int err;
switch(token) {
case TOK_RIT_CLR:
/* Clear offset */
err = kenwood_simple_cmd(rig, "RC");
if (err != RIG_OK)
return err;
/* val is ignored for RC command */
break;
default:
rig_debug(RIG_DEBUG_WARN, "%s: Unsupported set_ext_level %d\n",
__func__, token);
return -RIG_EINVAL;
}
return RIG_OK;
}
/* Support the FI command for reading the IF center frequency,
* useful for panadapters and such that need to know the IF center.
* TQ command is a quick transmit status query--K2/K3 only.
*
* token Defined in elecraft.h or this file
* val Type depends on token type from confparams structure:
* NUMERIC: val.f
* COMBO: val.i, starting from 0 Index to a string table.
* STRING: val.cs for set, val.s for get
* CHECKBUTTON: val.i 0/1
*/
int k3_get_ext_level(RIG *rig, vfo_t vfo, token_t token, value_t *val)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
if (!rig || !val)
return -RIG_EINVAL;
char buf[KENWOOD_MAX_BUF_LEN];
int err;
const struct confparams *cfp;
cfp = rig_ext_lookup_tok(rig, token);
switch(token) {
case TOK_IF_FREQ:
err = kenwood_safe_transaction(rig, "FI", buf, KENWOOD_MAX_BUF_LEN, 7);
if (err != RIG_OK)
return err;
if (cfp->type == RIG_CONF_NUMERIC) {
val->f = 8210000.0 + (float)atoi(&buf[2]);
} else {
rig_debug(RIG_DEBUG_ERR, "%s: protocol error, invalid token type\n",
__func__);
return -RIG_EPROTO;
}
break;
case TOK_TX_STAT:
err = kenwood_safe_transaction(rig, "TQ", buf, KENWOOD_MAX_BUF_LEN, 4);
if (err != RIG_OK)
return err;
if (cfp->type == RIG_CONF_CHECKBUTTON) {
val->i = atoi(&buf[2]);
} else {
rig_debug(RIG_DEBUG_ERR, "%s: protocol error, invalid token type\n",
__func__);
return -RIG_EPROTO;
}
break;
default:
rig_debug(RIG_DEBUG_WARN, "%s: Unsupported get_ext_level %d\n",
__func__, token);
return -RIG_EINVAL;
}
return RIG_OK;
}
/*
* k3_set_rit() -- Differs from from generic Kenwood function as K3 can set
* RIT to an arbitrary offset. When rit == 0, the RIT offset is cleared.
*/
int k3_set_rit(RIG * rig, vfo_t vfo, shortfreq_t rit)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
int err;
if (!rig)
return -RIG_EINVAL;
err = set_rit_xit(rig, rit);
if (err != RIG_OK)
return err;
return RIG_OK;
}
/*
* k3_set_xit() -- Differs from from generic Kenwood function as K3 can set
* XIT to an arbitrary offset. When rit == 0, the XIT offset is cleared.
*/
int k3_set_xit(RIG * rig, vfo_t vfo, shortfreq_t rit)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
int err;
if (!rig)
return -RIG_EINVAL;
err = set_rit_xit(rig, rit);
if (err != RIG_OK)
return err;
return RIG_OK;
}
/* The K3 *always* uses VFOB for TX. Do we continually switch VFOs and
* possibly irritate the user? Better just to return -RIG_ENAVAIL
* until this is resolved.
*/
int k3_set_split_mode(RIG *rig, vfo_t vfo, rmode_t tx_mode, pbwidth_t tx_width)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
return -RIG_ENAVAIL;
}
/* The K3 *always* uses VFOB for TX. Do we continually switch VFOs and
* possibly irritate the user? Better just to return -RIG_ENAVAIL
* until this is resolved.
*/
int k3_get_split_mode(RIG *rig, vfo_t vfo, rmode_t *tx_mode, pbwidth_t *tx_width)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
return -RIG_ENAVAIL;
}
/*
* Handle S-meter (SM, SMH) level locally and pass rest to kenwood_get_level()
*/
int k3_get_level(RIG *rig, vfo_t vfo, setting_t level, value_t *val)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
if (!rig || !val)
return -RIG_EINVAL;
char lvlbuf[50];
int retval;
struct kenwood_priv_data *priv = rig->state.priv;
switch (level) {
case RIG_LEVEL_STRENGTH:
/* As of FW rev 4.37 the K3 supports an 'SMH' command that
* offers a higher resolution, 0-100 (mine went to 106),
* rawstr value for more precise S-meter reporting.
*/
retval = strncmp(priv->fw_rev, "4.37", 4);
if (retval < 0) {
cal_table_t str_cal = K3_SM_CAL;
retval = kenwood_safe_transaction(rig, "SM", lvlbuf, 10, 7);
if (retval != RIG_OK)
return retval;
sscanf(lvlbuf+2, "%d", &val->i); /* rawstr */
val->i = (int) rig_raw2val(val->i, &str_cal);
} else if (retval >= 0) {
cal_table_t str_cal = K3_SMH_CAL;
retval = kenwood_safe_transaction(rig, "SMH", lvlbuf, 10, 7);
if (retval != RIG_OK)
return retval;
sscanf(lvlbuf+3, "%d", &val->i); /* rawstr */
val->i = (int) rig_raw2val(val->i, &str_cal);
} else {
rig_debug(RIG_DEBUG_ERR, "%s: Firmware version comparison failed!\n",
__func__);
return -RIG_EINVAL;
}
break;
default:
retval = kenwood_get_level(rig, vfo, level, val);
if (retval != RIG_OK)
return retval;
break;
}
return RIG_OK;
}
/*
* Some functions, notably RIT and XIT On/Off status, can be queried
* on the K3. Those functions are handled here and others are passed
* through to kenwood_get_func().
*/
int k3_get_func(RIG *rig, vfo_t vfo, setting_t func, int *status)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
if (!rig || !status)
return -RIG_EINVAL;
switch (func) {
case RIG_FUNC_RIT:
return get_kenwood_func(rig, "RT", status);
case RIG_FUNC_XIT:
return get_kenwood_func(rig, "XT", status);
default:
return kenwood_get_func(rig, vfo, func, status);
}
}
/* Private K3 helper functions */
/*
* set_rit_xit() -- Differs from from generic Kenwood function as K3 can set
* RIT/XIT to an arbitrary offset. When rit == 0, the RIT/XIT offset is
* cleared.
*/
int set_rit_xit(RIG *rig, shortfreq_t rit)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
int err;
char offs;
char cmd[16];
if (!rig)
return -RIG_EINVAL;
if (rit == 0) {
/* Clear offset and return */
err = kenwood_simple_cmd(rig, "RC");
if (err != RIG_OK)
return err;
return RIG_OK;
}
/* Set offset */
if (rit <= 9999 && rit >= -9999) {
offs = (rit < 0) ? '-' : '+';
snprintf(cmd, 8, "RO%c%04d", offs, abs((int)rit));
err = kenwood_simple_cmd(rig, cmd);
if (err != RIG_OK)
return err;
} else {
return -RIG_EINVAL;
}
return RIG_OK;
}
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