Question about Icom IC M504 Black Submersible PLUS Marine VHF with Class D DSC ()

1 Answer

I have an icom marine radio m505 (nearest model) which I bought over two years ago. The channels were very quiet including channel 16 so I tested it with local coast guard. I can transmit but cannot receive. The problem would appear to be with faulty squelch control which is blocking receipt. Any solutions , if repair is required where is the nearest agent Kind regards Paul Dobbyn Dublin Ireland

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  • Expert
  • 320 Answers

First of all check if your antenna cable is in good shape.
Check if there are no shorts in the connectors between the center lead and the screen tress.
Also check if the center lead is soldered into his connector pin on each connector on the cable.
Set squelsh just out of the noise zone.

Posted on Sep 25, 2017

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Handheld Marine Radio

This applies to all battery powered radios. Take out the battery and measure the voltage to see if it is indeed charged. If it's not, then the fault is the charger or the battery or both. If the battery voltage shows that it is fully charged, then clean the terminals on the battery and on the radio with a pencil eraser to remove any corrosion. If still no joy, then look up in your user's manual on how to do a reset. If you don't have a manual, get on the ICOM website and download one.

Good luck.

Posted on Nov 16, 2008

  • 64 Answers

SOURCE: radio turns on , channels change, but no sound or

It sounds like your vhf speaker has failed. I recommend taking your radio to a repair shop and replacing the speaker...this should solve your problem.

Posted on Jun 24, 2010

  • 2 Answers

SOURCE: I have an ICOM-504 . I can transmit but I can not

Hello,

I had the same problem and traced it to a bad connection between flex cables and boards.It seems the SQL signal from the Rx board is not reaching the processor on the front panel. Check all connections (reseat all cables) and try again.

servstan

Posted on Aug 19, 2010

reyjoshua07
  • 1157 Answers

SOURCE: Icom M710 Transceiver dosen't transmit.

Hi mesquaukee,

Are you trying to connect the SCS PTC-IIpro to an Icom M710 (or M700pro) marine transceiver? If you do kindly refer on the information below:

The audio connections are the same as the PTC-II/IIe, the radio-control connection is specific to the IIpro.

Audio connections:
PTC-IIpro Audio Icom M710 ACC(1)
(8-pin SCS DIN) (8-pin Icom DIN)
---------------- -----------------
(Tx audio) Pin 1----(vio)-----Pin 4 (Mod)
(Rx audio) Pin 4----(grn)-----Pin 5 (AF out)
(PTT) Pin 3----(yel)-----Pin 3 (PTT in)
(Gnd) Pin 2----(wht)-----Pin 2 (ground)
(+12V) Pin 5----(blu)-----Pin 7 (12V out- see note)
Shell---(shield)---Shell
Notes:
1. The colors shown above are for the pigtail cable supplied with the PTC-IIpro. Check the colors with an ohmmeter, errors are possible.
2. The German-style DIN connector has a different physical pin geometry, and is not interchaneable with the US-style DIN connector used by Icom. Label the cable ends to avoid any confusion over which end goes where.
3. The PTC-IIpro has provision for an alternate 12V input on its HF audio connector. This provides a convenient way to connect power to the modem, but if the cable is particularly long then this could be a source of RF interference. Consider a separate power connection for long cables.

Remote Control:
Remote frequency-control is optional, but highly recommended when a PTC-IIpro modem is used with an Icom M710/M700pro transceiver. There are two options for connecting remote control to the radio, the recommended connection is to use the M710's 9-pin "Remote" connector (supported from Airmail ver 3.0.857 onwards). As an alternative, the 1/8" mini-phone "Clone" jack can be used, see "option 2" below.
PTC-IIpro "Control" ICOM 710 "Remote"
(13-pin DIN) (DB-9P 9-pin male)
----------- --------------
Pin 3 (yellow) -------- NMI+ 5
Pin 8 (red) ----------- NMO+ 7
Pin 13 (orange) ---+--- NMI- 6 (see note)
+--- GND 9
Shell ----(shield)----- Shell
Note: Add a jumper between pin 6 and 9 on the 9-pin connector, so that the (orange) ground wire connects to both pins. Also make sure that unused wires are carefully insulated, short-circuits can damage the radio or modem.

Radio Settings:
In order to use the NMEA interface, it must first be selected using the front-panel "Set Mode" functions (turn power on while holding down the "Func" and "1" buttons-- or "Ent" and "1" for the 700 pro). Select the "REMT-IF" (remote interface) setting and change it "d-Sub" (or "RS-232" on some models). Also check that the "REMT-ID" setting matches Airmail's "AIcom Addr" setting).
AirMail Options Settings:
Modem (TNC) connection:
Modem type: PTC-IIpro
Comm port: COM1 or as appropriate
Baud rate: 38400 or 57600
Show link messages: no check
Ignore CTS: no check
Audio Tones:
Center Frequency: 1500
Check "USB"
Check "Marine (FSK dial=center)"
Amplitudes: as appropriate, start with 130/170
Radio connection:
Check "Direct using PTC-II control port"
RS-232: Checked (this is important!)
Radio type: "Icom-M710" (select appropriate model)
Baud: 4800
Icom Addr (hex): 01 for M710, 02 for M700pro, or 03 for M710RT (must match radio's REMT-ID setting)
Dial offset: 00
Note: Entering the radio modes with the "Modes" button is no longer required.

Hope it helps.

Thank you for using Fixya.

Posted on Apr 14, 2011

Ironfist109
  • 3018 Answers

SOURCE: I had a ICOM IC-M505

  • Icom's are a nightmare when programming MMIS frequencies into it.
  • Here is the manual http://www.icom-france.com/files/not-IC-M505-angl.pdf
  • For starters you want to reference page 7
  • Then go to page 15 - 53 (chapter 6) for the programming / transmitting / receiving procedure.

  • This is not a simple procedure. It will take some fooling around with and lots of time.. Every HAM has to master their radio. I urge you to read that section of the manual and follow it step by step and don't get over frustrated at it. It's gonna take some time for you to get the hang of this part of your radio.

  • Hope this helps and thank you for using FixYa.

Regards, Tony

Posted on Aug 09, 2011

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