Top 20 Icom IC-M505 - VHF/DSC Marine Transciever Questions & Answers


DUALWATCH/

Description
Dualwatch monitors Channel on another channel;
Tri-watch monitors Channel 16 call channel while receiving another is convenient for monitoring operating on another channel.
DUALWATCH/TRI-WATCH SIMULATION
Call channel
Dualwatch
Tri-watch

If a signal is received on Channel 16, Dualwatch/Tri-watch
pauses on Channel 16 until the signal disappears.

If a signal is received on the call channel during
Tri-watch,
Tri-watch becomes Dualwatch until the signal disappears.

To transmit on the selected channel during Dualwatch/Triwatch,
push and hold
[PTT]
.

Operation
q
Select Dualwatch or Tri-watch in Set mode. (p. w
Rotate [CHANNEL] to select the desired operating e
Push [DIAL•DUAL/GRP] for 1 sec. to start Dualwatch or
Tri-watch.
•"DDDU
UUA
AAL
LL
1
116
66" appears during Dualwatch; "
T
TTR
RRI
II
1
116
66" appears during
Tri-watch.

A
beep tone sounds when a signal is received on r
To cancel Dualwatch/Tri-watch, push
[DIAL•
DUAL/GRP]
again.
[Example]:
Operating Tri-watch on INT
Channel 25
Tri-watch
starts. Signal is received on call channel.
25W25W
INTINT
DUPDUP
TAGTAG
TRITRI
1616
3434°
34.506N34.506N
123123°
23.236W23.236W
UTCUTC
1212:00:00
TELEPHONETELEPHONE
BUSYBUSY
25W25W
INTINT
CALLCALL
DUPDUP
TAGTAG
TRITRI
1616
3434°
34.506N34.506N
123123°
23.236W23.236W
UTCUTC
1212:00:00
INTLINTL
Tri-watch resumes after the
Signal received on Channel
signal disappears.
16 takes priority.
25W25W
INTINT
DUPDUP
TAGTAG
TRITRI
1616
3434°
34.506N34.506N
123123°
23.236W23.236W
UTCUTC
1212:00:00
TELEPHONETELEPHONE
BUSYBUSY
25W25W
INTINT
DUPDUP
TAGTAG
TRITRI
1616
3434°
34.506N34.506N
123123°
23.236W23.236W
UTCUTC
1212:00:00
TELEPHONETELEPHONE
More user manuals on
ManualsBase.com
If not understand mail me sadiqm357@yahoo.com

Icom IC-M505 -... | 64 views | 0 helpful votes


turn the squelch down? the RF gain down too
do you have an attenuator turned on ?

Icom IC-M505 -... | 275 views | 0 helpful votes


You need to be a very good technical person with electronics to work on these. The issue is most likely a PLL board issue. You need to be able to troubleshoot to the component level. The service manual appears to be https://www.manualslib.com/manual/738448/Icom-Ic-706mkiig.html

Icom Radio... | 38 views | 0 helpful votes


Contact iCOM directly to inquire.

Icom Radio... | 76 views | 1 helpful votes


it is available on web sight..download it.

Icom Radio... | 68 views | 0 helpful votes


Contact Icom directly to inquire.

Icom Radio... | 46 views | 0 helpful votes


Sure sounds like a "low volts" reboot due to high current draw.
Are you measuring voltage at the radio itself, after any connector, fuse or circuit breaker? The voltage (at the set) should be slightly different between low and medium power tx. Use a good meter to confirm this. Is the power supply able to supply the current required at high tx power? Is a current limiter operating? A lead-acid battery in parallel with the PSU might be needed at high power.
At high power setting the radio will probably reset faster than a low power input voltage can be measured with a normal meter, so an oscilloscope might be needed to see the power input voltage as it happens (might be very brief).
Could RF be getting back into the power supply? Does it happen on both bands? Is the SWR good? Is the earth good? How long and how thick are the power wires? Is there any filter on the power supply wires (close to the radio)? If it's new there will be a warranty if it's a fault in the unit. Good luck :)

Icom Radio... | 42 views | 0 helpful votes


YOU CAN NOT THAT IS ONLY DONE BY SERVICE PROVIDERS

Icom Radio... | 46 views | 0 helpful votes


Que es el error? Aye un numero? Diga mas acerca de este problema.

Icom Radio... | 49 views | 0 helpful votes


I am certainly not an expert on such things but from your description it seems like a modulation issue as the carrier is reaching the repeater.

Lack of modulation could be a microphone problem or a matter of the audio gain needing to be adjusted or it could be a modulation amplifier fault.

I notice the radio has a very comprehensive battery of tools and facilities. Among these is a scope and I am guessing the scope is there as an aid to adjusting and checking the modulation envelope.

I suggest some light reading and experimentation...
Good luck!

Icom Radio... | 79 views | 0 helpful votes


you don't unless you know dealer codes which only they know

Icom Radio... | 159 views | 0 helpful votes


If you can do a master reset, then the radio should be able to be programmed. Unfortunately, it is possible to BRICK a radio by doing something wrong when in the process of loading info into it from a computer. Bricking a radio basically means that the radio is useless. You may have to send it to ICOM and see if they can get it operational.

I don't recommend that anyone updates the firmware in anything unless there is a real need for it. The chances of making the item completely useless when doing this is real. There are a lot of bricked radios on EBAY or being used as door stops because of this.

Icom Radio... | 109 views | 0 helpful votes

Not finding what you are looking for?
Icom IC-M505 - VHF/DSC Marine Transciever Logo

2 questions posted

Ask a Question

Usually answered in minutes!

Top Icom Radio Communications Experts

Perry Mellott
Perry Mellott

Level 2 Expert

147 Answers

Robert McClure

Level 2 Expert

161 Answers

Vincent G
Vincent G

Level 3 Expert

2361 Answers

Are you an Icom Radio Communication Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Icom Radio Communications

  • Icom Radio Communications

Most Popular Question

icom ic m505 refuses scan in setup

  • Radio Communications
Loading...