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Go Back   SailNet Community > On Board > Gear & Maintenance > Icom M710
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Thread: Icom M710 Reply to Thread
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Topic Review (Newest First)
12-13-2007 11:46 PM
Melrna When you do figure it out, please post the solution so we can all learn.
The problems of others can be learning tools for others sailors.
12-13-2007 03:25 PM
k1vsk
Quote:
Originally Posted by Sanctuary54 View Post
As to the reply on not transmitting... Actually we did contact another boater after one of Chris Parkers Broadcast and they said they were reading us like we were standing in the room.

Why would transmitting cause more problems?

Right now we are going to replace all the copper ground with he new copper wire that looks like a ladder??? and replace all the connections to see if this helps.

If it were the antenna, tuner or connections thereto, you would have a bigger problem when transmitting than recieving which makes me believe it is in the receiver. Transmitters of this type are somewhat protected from a badly mismatched antenna or worse and they will cut back power output to compensate for a problem - as you were heard well, it makes it sound as though it is on the receive side. Again, I'm not that familiar with the 710 but on all other radios, the RF gain should be full open.
12-13-2007 01:44 PM
Melrna I hate to state the obvious but it might be the receiver itself. I would take the receiver out and trying connecting to the boat next to you to see if it works. Also make sure the tuner is mounted near the backstay as close as possible.
12-13-2007 11:51 AM
Sanctuary54
Icom 710

As to the RF Gain... we actually have a function in which we can change the gain. Is this what you ae speaking of? We have tried several gain levels and found that around 7 or 8 (high) is te best. I know I keep speaking of Chris Parker, but this seems to be the only channel we are able to hear. We can't et Cruisheimes, BBC, etc.
12-13-2007 11:47 AM
Sanctuary54
Icom M710

As to the reply on not transmitting... Actually we did contact another boater after one of Chris Parkers Broadcast and they said they were reading us like we were standing in the room.

Why would transmitting cause more problems?

Right now we are going to replace all the copper ground with he new copper wire that looks like a ladder??? and replace all the connections to see if this helps.
12-12-2007 10:59 PM
k1vsk Carry & Carl
The 710 has an Rf gain control but I forgot where - it may be on the back panel or an imbeded function. Has that been inadvertently changed?
You might try by-passing the tuner if the above doesn't help to ensure that it is not mistuned which could also attenuate the receiver.
12-12-2007 07:59 PM
camaraderie Can you bypass the antenna tuner and just go straight to the radio?
Otherwise I am stumped. The guy with probably the most ham/ssb knowledge around here is Btrayfors...suggest you PM him to look at this thread and provide thoughts.
12-12-2007 06:56 PM
thekeip I think what bothers me a bit is that a good receiver -even a mediocre one, doesn't need all that much in the way of an antenna to receive something. I read into your post that you're having a general all-band problem. For sure though, your troubles will multiply if you try to transmit with a defective antenna system
I'll try to psysch this out as best I can...but others here are way more conversant than I.
Howard Keiper
12-12-2007 04:39 PM
Sanctuary54
Icom M710

Thanks for all the replys guys... We recently cut the coax and re-instaled it to the back-stay. We also mounted several spacers to keep it off the insulated part. We also placed a copper foil on the ground on the tuner (Icom 1-20) and placed it in the water. No change. Also, if we take the ground wire off the back of the radio...there is no change. We can hear Chris Parker at 6:30 on 4045 but no other boats. Yet, the boat beside us heas everyone???

Carrie & Carl
Sanctuary
12-11-2007 07:19 PM
thekeip Which reminds me....I think one of the first things I'd do is to rig some kind of jumper from the 710's rf connector (coax) directly to the antenna without going to or through the tuner...you never mentioned the tuner...why's that??
Howard
Berkeley
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