HOW TO USE
Set the TX/RX selector (12) to “T” for transmitting
and to “R” for receiving. The LED indicator (17)
should light up when in “T” mode. Speak about 10
cm from the microphone and adjust microphone
’
s
gain (11) to suit your voice and radio.
EXAMPLE OF MOUNTING
FIG. 2
FIX TO SUN VISOR
MIC.
TRANSCEIVER
CABLE
SWITCH BOX
If your radio has the feature, the up/down buttons
(9/10) should change frequency or channel. The ac-
tual operation depends on your rasdio design.
The CALL (LLAMADA) (13), VFO (14), MEMORY RE-
TURN(15) and PRIORITY FUNCTIONS (16) have simi-
lar functions as those on your radio (subject to your
radio
’
s design).
HOW TO MOUNT THE SWITCH BOS
FIG. 3
RUBBER
RUBBER
PLATE
ADJUSTING THE MICROPHONE GAIN
The gain control (11) is quite critical. Please, adjust it care-
fully as it is directly mounted on the circuit board. Get ano-
ther operator to listen to your radio or watch the ALC
reading in the case of SSB. Too much gain can cause dis-
tortion!
FIG.4
RF FEEDBACK
If you run high power, you could have problems with RF feedback. Make sure that the microphone
cable does not run near the antenna cable and make sure the VSWR is low. If any problem per-
sist, then try placing a ferrite ring at the point where the microphone cable enters the base of the
PTT box. In the worst case, also try a ferrite ring near the point where the microphone cable enters
your transceiver. Before carrying out these suggestions, do check that there is no RF feedback
with the normal transceiver microphone. If there is, then consult your dealer.
CONNECTIONS ACCORDING TO VERSION:
1. SW 2 (KEY CONTROL)
2. SW 1 (KEY CONTROL)
3, +9V
4. Mass
5. +MIC
6. PTT
WARNING:
FOR RIGHT PERFORMANCE OF THE HANDS-FREE KIT, THE RADIO
MUST BE COMPATIBLE WITH THE MICROPHONES MH-42B6JS AND CONFIGURED IN
THE RADIO
’
S MENU DEPENDING ON THE MODEL.
100% COMPATIBLE WITH: FT-100 / FT-7800 / FT-8800 / FT-8900
IT ONLY WORKS IN TX/RX (keys will not work) WITH: FT-1802 / FT-2800 AND
SERIES WITH THE MH-48B6JS MICROPHONE.
1. DWN
2. NC: No connection
3. MIC
4. GND (MIC)
5. STBY (PTT)
6. GND
7. DC 8V, 200mA max.
8. UP
COMPATIBLE WITH : ALL RADIOS WITH RJ-45 CONNECTOR
1. 8 V DC
2. Up/down Frequency
3. HM-90/98 control input
4. PTT
5. Microphone mass
6. Microphone input
7. Mass
8. No connection
COMPATIBLE WITH: ALL RADIOS WITH RJ-45 CONNECTOR
1. Common / - Mic mass.
2. + MIC.
3. TX
4. RX
COMPATIBLE WITH:
ALAN555, ATRON 507, AUDIOLINE 340/341/345, COBRA 18LTD, COBRA 18ULTRA,
COBRA 19/DX-LTD/GTL/LTD/ULTRA, COBRA 21GTL/LTD/CLASSIC/XLR, COBRA
25GLT/LTD/CLASSIC GOLD/WX/CLASSIC/PLUS, COBRA 26, COBRA
29/LTD/CLASSIC/GOLD/WX/PLUS/XLR, SUPER STAR 3900
1. +MIC.
2. RX
3. TX
4. UP/DOWN
5. Common / -MIC mass
6. N/C
COMPATIBLE WITH:
ALAN 48 PLUS MULTI, ALAN 48 EXCEL, ALAN 78 PLUS, ALBRECHT AE
4100/4180/5100/5150/5180/6080/8000, MAXON MX1000/2000, MAYCOM EM27, PRESIDENT
TAYLOR CLASSIC, ETC.
Y
AESU
KENWOOD
ICOM
4 PIN
6 PIN
