Lab599 Discovery TX-500 Manuel utilisateur
HF/50MHz Transcever TX-500
QUICK START GUIDE
DEVICE BODY AND CONTROLS
Front view
Top function keys
RIT/XIT On / Off
Clear RIT / XIT
VFO / Memory
Lock / Unlock VFO
Step VFO
Power On/Off
Band Up / Down
Basic mode
Passband filter
Menu mode
Receiver gain control (RX mode)
Monitor volume (TX mode)
Tune VFO A, B / Menu Settings
RX / TX offset
Bottom function keys
Controls end user interface
1
Left side
DC 9-15V
Power supply
1 – GND
2 – DC IN (9-15V/3A max)
1 – SPEAKER – *
2 – MIC IN
3 – PTT IN
4 – SPEAKER +
5 – MIC IN (V+) **
6 – GND
1 – PTT IN
2 – PTT OUT
3 – AUDIO DATA OUT
4 – Q 5 – I
6 – AUDIO DATA IN
7 – GND
25
61
2
4
5
6
3
4 3
2
1
7
1
MIC/SP
Microphone / Speaker
REM
DATA
* Connect a speaker or headphones with the appropriate pins 1 & 4, SPEAKER (-) and SPEAKER (+).
Do not connect a speaker to ground, pin 6.
** For connecting an external electret microphone that requires additional power supply.
Right side
1
4
5
3
2
CW KEY ANTCAT
4
3
1
2
1 – GND
2 – RX
3 – +3.3V IN ***
4 – TX
1 – GND
2 – “•”
5 – “–”3 – NC
4 – NC Antenna (50 Ohm)
*** When connecting with a third-party USB adapter, make sure that an input voltage of 3.3V (10mA) is supplied to the pin.
2
USER INTERFACE
Main display
1
2
4
3
6
5
7
8
9
19 — Function buttons
2— Information bar title
TX/RX mode
Clock
battery low
Autogain control
(delay 1-10)
Hight temperature
alert
Clock
Supply voltage
Step VFO (Step RIT/XIT), Hz
or LOCK VFO
VFO offset, Hz (RIT/XIT)
3
3— VFO A / B
VFO A
Basic VFO
VFO B
4— Info block 1
Basic modes or alternative modes:
Filter band width Receiver gain (0-100)
Monitor (0-100)
Radio frequency gain
Volume (-50+5)
ABCDEFG
5— Graph bar
Power output (PWR),
SWR, MIC, ALC
Transmit mode:
Power output (NUM),
SWR (NUM)
Receive mode:
S-meter
6— Info block 2
A
C
B
D
F
G
E
L
I
J
K
– Noise reduction ON
– Noise blanking ON
– Notch filter ON
– Attenuator ON
– Monitor ON
– VOX ON
– Speech compression ON
– Preamp ON
– Squelch ON
– Split mode effect ON
– Virtual intermediate frequency ON
7— Pan-adapter
Receiving or transmission channel
8— Menu
Menu Up Menu Down
– Function buttons
4
GETTING STARTED
Before using the TX-500, you’ll need to connect a power supply, speaker-microphone
and an antenna, at minimum.
Power supply
(12V, 3A max)
Speaker-microphone
Connect antenna
(50 Ohm)
Unfold Leg
Left side
Right side
AF GAIN — Controls receiver AF gain (volume).
USING THE MENU
The menu is used to tailor the transceiver to your operating preferences.
To access the menu, push Funtil the any menu entry appears in
the pan-adapter area. To change the value of a menu parameter, rotate
MTUNE/MULTI (large knob).To exit the menu, push Fagain.
BAND SELECTION
The TX-500 covers the 160-6 m amateur bands. Characteristics of each band are
summarized below.
Best DXRang (Mhz)Band (m)
160
80
60
40
30
20
1.8-2.0
3.5-4.0
~5.3-5.4
7.0-7.3
10.0-10.15
14.0-14.35
Best DXRang (Mhz)Band (m)
17
15
12
10
6
18.068-18.168
21.0-21.45
24.89-24.99
28.0-29.7
50-54
Basic Operations
5
MODE SELECTION
Each mode is described briefly below. Later sections cover each mode in detail. Tap
Done or more times to select USB (LSB), CW (CWR), DIG, AM or FM mode. Long
push selects alternate modes, such as CW reverse (CWR). Also, long push returns
normal mode.
• SSB: Single-Sideband modes are narrow-banded voice modes that conserves
space in crowded band segments. They’re the most popular modes overall, they
are: LSB (lower-sideband) usually used in 160, 80 and 40 meters, while other bands
use USB (upper-sideband).
• CW: Continuous Wave mode requires narrow bandwidth, providing a high signal-
to-noise ratio which is ideal for low-power (QRP) use. It’s also a popular mode for
DXing and contests. CWR Continuous Wave Reverse is the alternate mode, and
may reduce the level of interference (QRM).
• AM: Amplitude Modulation mode is characterised by good delity. It’s much less
power-efcient than SSB modes. You can easily nd AM amateur stations in 160,
80, 40 and 10 meters.
• FM: Frequency Modulation mode is most often used for local communications,
and can be found on 10 m and up.
• DIG: Digital Mode is usually used with a computer connected to the transceiver
to send/receive data. Although SSB modes can also be used for this purpose, the
TX-500’s audio-based data modes (E) optimise settings for data rather that voice.
VFOS A AND B
The TX-500 provides two VFOs. Use of VFO B is optional. Each VFO has independent
frequency, mode, and lter settings:
• VFO A normally controls both the receive and transmit frequency. Most contacts
occur between stations tuned to about the same frequency.
• VFO B can serve as a holding register for a second frequency of interest, then
swapped with VFO A as needed (see A<>B).
•
+ - Tuning rates: Tapping Kor Lselects VFO tuning rate LSB, USB, DIG (10Hz, 100Hz,
1kHz, 2.5kHz, 5kHz), CW, CWR (1Hz, 10Hz, 100Hz, 1kHz, 2.5kHz), AM, FM (100Hz,
500Hz, 1kHz, 2.5kHz, 5kHz). SSB stations often align on 0.5 or 1.0kHz boundaries.
• A->B To copy VFO A’s frequency to VFO B: Tap N>A->B. Tapping also copies
VFO A’s mode and lter settings to VFO B as well.
• B->A To copy VFO B’s frequency to VFO A: Tap N>B->A. Tapping also copies
VFO B’s mode and lter settings to VFO A as well.
• A<>B VFO A and B swap: Tap N>A<>B to exchange VFO frequencies, modes,
and all other settings.
6
RIT
Incremental Tuning, or receive incremental tuning, provides a means of adjusting the
receive frequency without affecting your transmit frequency. This control is sometimes
called a clarier since it can be used to tune in SSB voice signals. But RIT can also be
used in all modes, in the event that a station calls you slightly off-frequency. RIT and
XIT use the tuning rate (1/10/100/200/300 Hz), taping Kor L.
XIT
XIT or transmit incremental tuning, adjusts the transmit frequency without affecting the
receive frequency. RIT and XIT use the tuning rate (1/10/100/200/300 Hz), taping Kor L.
• To use RIT or XIT: First, tap GRIT (RX mode) or tap GXIT (TX mode).
This turns on the “+0” on the display. Then adjust the offset using RIT/XIT knob.
• To zero the RIT/XIT offset tap H.
JVFO LOCK/UNLOCK
When the mode is activated, the inscription appears in the upper line of the display
J (Lock), frequency tuning is not possible. To deactivate the mode, press the J
button again.
TRANSMIT SETTINGS
• Voice Modes (SSB, AM, FM): Choose a mode: Tap Dto select A/ B, F
or Gmode.
• MON, Monitor: Push N>MON in the bottom line for MON on. Hold PTT to set the
voice monitor level, rotate MAF GAIN knob. High MON settings may result in audio
clipping or distortion. Start with 3 to 5.
+
<< TONE MON >>
F
ADo not use the hand speaker-mic at the same time as monitor Ffunction
in voice modes (ABFG) — there is a risk of audio coupling with a
high noise distorting the real audio.
• Adjust mic gain level: Push METR and select MIC, rotating MTUNE/MULTI.
7
CMR VOX L VOX D METR
Menu Up Menu Down SubMenu
TX Metr MIC
While speaking into the mic, adjust F>09 > Gain > MIC (mic gain).
+
While speaking, adjust mic gain for maximum 5-7 bars on a scale. Mic gain for the
TX-500 mic is typically 3-7.
• CMR Speech compression: To use speech compression, tap N>CMR in the top
line. Adjust the level using the F>16 > CMR Level or long push N>CMR.
High CMR settings may result in distortion. Start with 1 to 3.
• POWER: Set the power level (10-100%): tap POWER in the top line and rotate the
knob MTUNE/MULTI. Do not use MIC gain to set power level. Set mic gain to a xed
level as described above.
•
VOX: Selects push-to-talk (PTT) or voice-operated (VOX) transmit (Gicon on).
VOX hold time is set with F>14 VOX > MIC (time, ms). F>13 VOX L
(VOX level) should be set to trigger at normal speech level, but not in response to
incidental noise. Start with low settings (80-90).
•
VOX Transmitter keying method: The VOX switch selects either VOX or PTT keying
for CW mode. Most operators use VOX, allowing the transmitter to be keyed imme-
diately whenever a hand key or keyer paddle is used. Tap N>VOX_D in top line
and rotate TUNE/MULTI or tap F>14 > VOX > CW (time ms).
• METR: You can switch the transmit bar graph from MIC, ALC, PWR, SWR, PWR
Num, SWR Num, by tapping N>METR in the top line. Rotate MTUNE/MULTI knob.
• CW modes (CW, CWR): To swith modes tap Dto select C(CW normal). In
some cases an interfering received signal can be eliminated by switching to D
(CW reverse) using long push D.
• CWPITH: Set sidetone pitch using CWPITCH. The ideal pitch for most operators
falls in the range of 600-700 Hz. The receiver’s passband will be centered at the
pitch you select. Tap N>CWPITCH and rotate TUNE/MULTI or F>02 > CW
Pitch (Hz). Set sidetone volume using AF GAIN in TX mode, FON.
8
RECEIVE SETTINGS
•
RF gain is normally left at (-0). Reducing RF gain may be useful in some strong-sig-
nal conditions.
• SQL: Squelch is used to mute the receiver until a signal appears. The control
adjusts the signal threshold required for squelch to “open,” unmuting the receiver.
• IF DSP: Virtual Intermediate Frequency: Species the Mode of the Receiver.
ENABLE: This is the operating mode, utilizing all DSP features of the radio. This
mode uses a virtual Intermediate Frequency, which is offset from the operating
frequency by a few kHz. This is similar to ‘homodyne’ technology.
DISABLE: When IF is disabled, the radio operates in simple Direct Digital Conversion
mode, and has soft reduced performances.
•
FILTER: DSP lter tuning functions (LF/HF) The (LF/HF) control is used to shape the
TX-500’s receive lter passband. In general, a narrow passband reduces interference
(QRM) and noise (QRN), while a wider passband improves delity. In voice modes,
CW and DIG modes long push Eselects low-cut (LF) and high-cut (HF) fre-
quency. Pushing E select number of lter (1-4)RX, (1-2)TX. These functions
remove low- or high-pitched interfering signals. Reducing the width or shifting
the passband may attenuate an interfering signal above or below the desired one.
• PRE/ATT: Preamp Land Attenuator Dturns on the RF preamp. It should
be used only when signals are very weak. Preamp gain can be set on a per-band
basis. Dturns on the 20-dB RF attenuator, which can protect the receiver from
strong interfering signals.
• NR: Noise reduction removes random background noise (hiss or static). It has a
characteristic “hollow” sound. Higher settings may attenuate weak signals. Tap
N>
NR
turns on noise reduction, holding N>
NR
and displays its setting, which
can be adjusted using the knob MTUNE/MULTI. Tap return to exit the setting display.
Tap N>NR again to turn noise reduction off.
• NB: Noise blanking Ccan eliminate repetitive noise such as that from power
lines, appliances, and vehicle ignitions systems. The NB setting is adjusted in the
same way as NR (see above).
• NF in SSB and AM modes, Bturns on auto-notch, which locates and sup-
presses one or more carriers automatically, Push N>NF to enable or disable
the Notch Filter.
• TONE (Transmission tone): The transceiver will transmit a single tone. Pressing
“Tone” N>TONE again puts the transceiver in RX mode. A long press of TONE
displays the selection mode NORMAL (1000 Hz) or DUAL (two tones of 1000 Hz and
2000 Hz). The transmission power is approximately 50%.
Basic Operations
9
Autres manuels pour Discovery TX-500
2
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Autres manuels Lab599 Émetteur-récepteur
