Radio Wiring Information
LEGACY PRODUCT NOTICE:
Our BayPac modem series (BP-1, BP-2, BP-2M and BP-96A) is no longer supported
beyond the information found below and on other related pages of our website.
This is due to the fact that these modems have not been compatible with any
version of Windows released in the last ~20 years, and have been replaced by
much more capable hardware (SignaLink USB).
NOTE: This page contains radio wiring information
for our BayPac series modems. This information can also be used with the RTX-12
telemetry modem since it has the same radio interface (cable and HT jumper) as
the BayPac. Note that this information does NOT apply to any
of our other products (RTX-12OEM, RTX-24, etc.).
CAUTION
CAUTION CAUTION CAUTION
This wiring information should only be used as a general
guide! Tigertronics has not verified the correctness of all of these
entries. Many have been submitted by customers who may have made an
error. Double check this information against your radio's manual before
doing the actual installation.
Remember that it's possible to DAMAGE YOUR RADIO or BayPac by incorrectly
installing it!
Before you attempt to operate packet with your HT, be sure to
see the Using Handheld Radios
section of our BayPac Troubleshooting Page for some important tips.
They could save you considerable time and frustration!
IMPORTANT:
There is really no "standardized" approach for connecting the PTT line to handhelds. The following
information applies to most (but not all) models by the manufacturers mentioned. Please note that with the shunt installed, you
are using the BayPac's "internal" keying resistor.
There seems to be a total lack of standardization for pin-outs on mobile
and base station mic connectors. There is even a lack of consistency
within the same manufactures models in some cases.
Many newer radios have a pin on the mic connector called "audio out". If
you use this pin to drive the BayPac, be sure it is "high level" (speaker)
audio. Some radios provide only low level (100 mv typ.) audio output. This
level is not nearly enough for the BayPac to receive properly. If this is the
case with your radio, you should use the audio from the external speaker plug
(or rewire the mic connector for high level audio). The simplest way to check
the audio level is to connect a speaker to it. If it is loud like the
internal speaker, it is "high level" and will drive the BayPac properly.
A few of the older radios (particularly old HF radios) have high voltage on
the PTT line and/or draw heavy PTT current. If you think yours could be
one of these, you may need to key the PTT with a small relay to avoid burning
up the PTT keying transistor in the BayPac. This is a very rare case, but if
you suspect that it could be a problem, you might want to consult our tech
support staff before proceeding with the installation.
ALINCO - Most Alinco handhelds have a 2.5mm STEREO plug for the mic and a 3.5mm STEREO plug for the speaker. YOU MUST use stereo plugs, even though you are not using the extra connections. Note that the "ring" of the mic connector is +5 volts (don't connect to anything).
Single Plug Types (2.5mm stereo): DJ-120
Wires: Blk - Sleeve
Red - No Connection
Grn - Tip
Yel - Ring
Shunt: Installed
Two Plug Types (2.5mm & 3.5mm stereo)
Wires: Blk - Body of speaker plug
Red - No Connection
Grn - Tip of speaker plug
Yel - Tip of mic plug
Shunt: Installed
ICOM - PTT is normally activated by grounding the mic input through a
resistor. The internal resistor in the BayPac should work just fine.
CAUTION:
Check your radio manual before you wire-up your HT. Most ICOM
handhelds use mono plugs, but some require stereo plugs. The IC-281 for
example, requires that both plugs be stereo.
One Plug Types (2.5mm stereo)
Wires: Blk - Sleeve
Red - No Connection
Grn - Tip
Yel - Ring
Shunt: Installed
Two Plug Types (See the warning above about the use of mono
and stereo plugs)
Wires: Blk - Body of speaker plug
Red - No Connection
Grn - Tip of speaker plug
Yel - Tip of mic plug
Shunt: Installed
KENWOOD - (TH22AT, etc.) Most Kenwood HTs do not require a resistor for the PTT. You
should connect the PTT line (red) to the "sleeve" of the mic connector.
You would expect this to be ground - but it isn't! Note that the mic
connector is a "stereo" plug. DO NOT connect anything to the "TIP" of the
connector since it is connected to +5 volt power. The mic connection
(yellow) should connect to the "ring" contact on the plug (not "sleeve"
or "tip").
Wires: Blk - Body of speaker plug
Red - Sleeve of mic connector
Grn - Tip of speaker plug
Yel - Ring of mic connector
Shunt: Do not install
RADIO SHACK - (HTX-202, HTX-404) Wired the same as ICOM. This radio does
not receive as well as some others on packet. The problem is that the
radio's audio frequency response rolls off too soon and distorts the high
tone. If you have trouble receiving other stations and you've gone
through all of the troubleshooting steps (Use a Boot-Disk, etc.), then
you might want to swap out the radio to see if the receive problem goes
away. If you have to use this radio on packet, then use the best antenna
that you can, and make sure that the Battery Save feature is turned off.
STANDARD - (C-178A) Wired the same as ICOM.
YAESU - (FT-470, VX-1R, FT-50) PTT is normally activated by grounding the mic
input through a resistor. The internal resistor in the BayPac should
work just fine.
Wires: Blk - Body of speaker plug (usually 3.5mm)
Red - No Connection
Grn - Tip of speaker plug
Yel - Tip of mic plug (usually 2.5mm)
Shunt: Installed
NOTE: For the VX-1R and FT-50, the mic and speaker connectors mentioned above
must be plugged into Yaesu's CT-44 adapter (available from Yaesu or your
dealer). If you do not have this adapter, you can NOT use a regular
3-conductor stereo plug - it will NOT work!
Base / Mobile Radios
ALINCO
8 Pin Connector
Models: ALR-22HT, ALD-24T, ALR-22T, ALR-72T, DR-110T, DR-112T, DR-150,
DR-430T, DR-510T, DR-570T, DR-590T, DR-592T, DR-599T, DR-600T,
DX-70T
Wires: Blk - Pins #7 & #8 (Gnd)
Red - Pin #2 (PTT)
Grn - Pin #6 (External speaker plug on some models)
Yel - Pin #1 (Mic)
AZDEN
8 Pin Connector
Models: PCS 5000, PCS 6000, PCS 7000
Wires: Blk - Pin #2 (Gnd)
Red - Pin #7 (PTT)
Grn - External speaker plug
Yel - Pin #1 (Mic)
12 Pin Connector
Models: PCS 2000
Wires: Blk - Pins #2 & #11 (Gnd)
Red - Pin #9 (PTT)
Grn - External speaker plug
Yel - Pin #12 (Mic)
ICOM
4 Pin Connector
Models: IC-202, IC-215, IC-22S, IC-245, IC-280, IC-402, IC-502
Wires: Blk - Pin #4 (Gnd)
Red - Pin #2 (PTT)
Grn - External speaker plug
Yel - Pin #1 (Mic)
8 Pin Connector
Models: IC-1201, IC-1271, IC-1275, IC-228, IC-229, IC-22U, IC-2400,
IC-25,
IC-2500, IC-255, IC-260, IC-27, IC-271, IC-28, IC-290,
IC-3200, IC-3210,
IC-3220, IC-37A, IC-38A, IC-375, IC-45,
IC-47, IC-471, IC-475, IC-48,
IC-490, IC-505, IC-551, IC-560,
IC-575, IC-707, IC-720, IC-725, IC-726,
IC-728, IC-729,
IC-730, IC-735, IC-737, IC-740, IC-745, IC-751, IC-761,
IC-765, IC-781, IC-901
Wires: Blk - Pin #6,#7 (Gnd)
Red - Pin #5 (PTT)
Grn - External speaker plug (Pin #8 on some models)
Yel - Pin #1 (Mic)
RJ-45 Connector
Models: IC-706, IC-706 MK-II, IC-2000
Wires: Blk - Pin #7 (Gnd)
Red - Pin #4 (PTT)
Grn - Pin #3 (RX Audio)
Yel - Pin #6 (Mic)
NOTE: On some radios Pin #3 is a low level audio output (100-300mv)
and will NOT work properly with the BayPac. On these radios you'll
need to use the external speaker output.
KENWOOD
Data Port
Models: TM-V733A, TM-451, TM-251
Wires: Blk - Pin #2
Red - Pin #3
Grn - External Speaker
Yel - Pin #1
4 Pin Connector
Models: TR-2200, TR-2300, TR-7400, TS-120, TS-130, TS-490, TS-520,
TS-530
Wires: Blk - Pins #3 & #4 (Gnd)
Red - Pin #2 (PTT)
Grn - External speaker plug
Yel - Pin #1 (Mic)
5 Pin Connector
Models:
Wires: Blk - Pins #4 & #5
Red - Pin #2 (PTT)
Grn - External speaker plug
Yel - Pin #1 (Mic)
6 Pin Connector
Models: TR-7730, TR-7750, TR-7800, TR-7930, TR-7950, TR-9000,
TR-9130, TR-9500
Wires: Blk - Pin #6 (Gnd)
Red - Pin #2 (PTT)
Grn - External speaker plug
Yel - Pin #1 (Mic)
8 Pin Connector
Models: TM-201, TM-221, TM-231, TM-241, TM-2530,
TM-2550, TM-2570,
TM-321, TM-331, TM-3530, TM-401, TM-421, TM-441, TM-531,
TM-541, TM-621, TM-631, TR-3200, TR-50, TR-751, TR-851,
TS-140,
TS-430, TS-440, TS-450, TS-670, TS-680, TS-690,
TS-701, TS-711,
TS-780, TS-790, TS-811, TS-850, TS-930,
TS-940, TS-950, TW-4000,
TW-4100
Wires: Blk - Pin #8 (Gnd)
Red - Pin #2 (PTT)
Grn - External speaker plug
Yel - Pin #1 (Mic)
MFJ
5-Pin DIN
Models: MFJ-8621
Wires: Blk - Pin #2 (Gnd)
Red - Pin #3 (PTT)
Grn - Pin #4 (AFSK Out)
Yel - Pin #1 (AFSK In)
NOTE: The MFJ-8621 must be configured specifically for 1200 baud
operation (see the MFJ-8621 manual). Also, because the radio provides
an un-squelched output, the software that you use must have "Software
DCD". To enable Software DCD in the BayCom program, use the command
"MODE 0 1200C".
RADIO SHACK
RJ-45 Connector
Models: HTX-212, HTX-242
Wires: Blk - Pin #2 (Gnd)
Red - Pin #6 (PTT)
Grn - External Speaker
Yel - Pin #5 (Mic)
YAESU
Data Port
Models: FT-3000, FT-8100, FT-8500
Wires: Blk - Pin #2 (Gnd)
Red - Pin #3 (PTT)
Grn - External Speaker
Yel - Pin #1 (Mic)
4 Pin Connector
Models:
Wires: Blk - Pin #1 (Gnd)
Red - Pin #3 (PTT)
Grn - External speaker plug
Yel - Pin #2 (Mic)
8 Pin Connector
Models: FT-840, FT-990, FT-2200
Wires: Blk - Pin #7 (Gnd)
Red - Pin #6 (PTT)
Grn - Pin #4 (External speaker plug on some models)
Yel - Pin #8 (Mic)
Models: FT-2400, FT-2500
Wires: Blk - Pin #5 (Gnd)
Red - Pin #3 (PTT)
Grn - Pin #2 (External speaker plug on some models)
Yel - Pin #4 (Mic)
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