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FLEXIBLE MICROPHONE FOR MOBILE RADIOS
AV-1KM
TOP
BOTTOM
Wind-shield (foam)
Flexible microphone
Mounting hardware
Mic. cord with mic. plug
Mic. input cord w/jack
Rubber band for mounting of
switch box to gear-shift
Rubber plate
Switch box
UP Switch
DOWN Switch
Output adjust volume
TX/RX selector switch
“CALL” Key
*Depending on version
“VFO” Key
*Depensing on version
“MR”Key
*Depending on version
“PF”Key
*Depending on version
TX Indicator LED
Mic. output jack
8 Pin Plug (73A, K, Y, I)
8 Pin connect (24A, K, Y, I)
HOW TO MOUNT AND INSTALL THE AV-1KM
Fasten the doose neck boom (3) under the car sun viso by using the car’s existing screw or bolt.
We recommend the position to the right of the driver. Attach the wind-shield (1) to reduce the
noise.
The PTT box (8) is attached to the gear change with a rubber band (6). Observe the way the band
is formed into two fastenings.
Connect the microphone cord (4) to jack (5). Then, connect the approppiate microphone for using
your radio from the PTT box to your transceiver (It can happen that you have to tilt lightly the jack
forwards before pulling).
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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 actual operation depends on your rasdio design.
The CALL (LLAMADA) (13), VFO (14), MEMORY RETURN(15) and PRIORITY FUNCTIONS (16) have similar 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 carefully as it is directly mounted on the circuit board. Get another operator to listen to your radio or watch the ALC
reading in the case of SSB. Too much gain can cause distortion!
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 persist, 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. Output +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.
YAESU
KENWOOD
ICOM
4 PIN
6 PIN
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FLEXIBLE MICROPHONE FOR MOBILE RADIOS
FEATURES:
Microphone mounts on the sun visor for tidy installation
PTT mounts on the gear change lever
DC power is taken from the microphone socket of your radio
Additional up/down functions are available on PTT box
Hands-free operation with latching PTT
Adjustable microphone gain control
Quick change leads for different radio models
SPECIFICATIOS:
Flexible goose neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 mm (L) x 8 (Dia)
Mic cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3m
CONTROL SECTION:
Output cord....................................................................................................................... 1.5m
Dimensions............................................................................... 54 (Al) x 22 (A) x 69 (Dia)mm
CAUTION:
The microphone mounts under thet bulkhead bolt of the sun visor. Please, make sure it is
firmly attached and the cable is safely routed. Please, also make sure that the microphone is
angled so it does not interfere with your forward vision.
YAESU
KENWOOD
ICOM4 PIN
6 PIN
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. Output +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.
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