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bobbylockes 04-01-2013 06:58 AM

ssb m710 disney voice
 
Hi,

I acquired two secondhand icom m710s recently and 2 antenna tuners 130 and 130E to go with it. one for my old boat which I'm trying to sell and one for a new boat..

I've got a problem with one of the m710s. It appears to be an older model as there is no alarm button and the modes possible are usb/lsb/am/f2k etc

The newer one has an alarm buttom and modes j3e/h3e/lsb etc ( but no am or usb).

j3e = usb

I've set them up on land to test them. I tuned the antenna tuners , set the frequency to 12000 Khz and 12100 Khz to transmit and receive (and vice versa), the mode is usb on the old one and j3e on the new one and it all worked, but for one thing...

when the older model (on usb mode) receives my transmission from the newer model (j3e mode) it makes my voice sound like donald duck or as if I'm speaking after inhaling helium. Digitzed and electronic as it were, as if from an 1980's sci-fi movie. However, when the newer one receives transmission from the older one there is no problem whatsover. crystal clear.

I've played around with the grounding of both radios (grounding to anything metal) but to no avail. I can't find anything on the internet regarding this problem, hence my post.

Does anyone know what is causing the helium/digitized/disney reception and how to fix it?

btw on am mode, the older one has no problem producing a normal sound when picking up commercial stations.

many thanks for any advice and help.

thanks!

Bobby

SVAuspicious 04-01-2013 08:10 AM

Re: ssb m710 disney voice
 
I'd repeat your test with a simplex frequency.

Do both radios sound okay when receiving USB nets like Cruiseheimers or Pacific Seafarers?

From your description so far I suspect one radio needs to be calibrated, but redo the test on simplex and check known good SSB signals before leaping to conclusions.

svHyLyte 04-01-2013 10:13 AM

Re: ssb m710 disney voice
 
Quote:

Originally Posted by bobbylockes (Post 1010579)
Hi,

I acquired two secondhand icom m710s recently and 2 antenna tuners 130 and 130E to go with it. one for my old boat which I'm trying to sell and one for a new boat..

I've got a problem with one of the m710s. It appears to be an older model as there is no alarm button and the modes possible are usb/lsb/am/f2k etc

The newer one has an alarm buttom and modes j3e/h3e/lsb etc ( but no am or usb).

j3e = usb

I've set them up on land to test them. I tuned the antenna tuners , set the frequency to 12000 Khz and 12100 Khz to transmit and receive (and vice versa), the mode is usb on the old one and j3e on the new one and it all worked, but for one thing...

when the older model (on usb mode) receives my transmission from the newer model (j3e mode) it makes my voice sound like donald duck or as if I'm speaking after inhaling helium. Digitzed and electronic as it were, as if from an 1980's sci-fi movie. However, when the newer one receives transmission from the older one there is no problem whatsover. crystal clear.

I've played around with the grounding of both radios (grounding to anything metal) but to no avail. I can't find anything on the internet regarding this problem, hence my post.

Does anyone know what is causing the helium/digitized/disney reception and how to fix it?

btw on am mode, the older one has no problem producing a normal sound when picking up commercial stations.

many thanks for any advice and help.

thanks!

Bobby

On the lower right-hand corner of the face plate below the key-pad is a dial identified as "Clarity", adjusting this upward or downward adjusts the frequency slightly changing the pitch of sound one hears when receiving. In your case the Clarity dial needs be turned to the left somewhat to dial down the voice somewhat. Evidently you did not get the operator's manual, eh? That can be down-loaded from ICOM's site.

bobbylockes 04-01-2013 05:37 PM

Re: ssb m710 disney voice
 
clARIFY dial was the issue. many thanks!!

any ideas how I can practice my ssb skills (or lack of them). I cant seen to find a channel that has any sailor chit chat.

I installed it as proof of concept on my boat today and did something ad could send but nothing was understandable.

aa3jy 04-01-2013 06:02 PM

Re: ssb m710 disney voice
 
Quote:

Originally Posted by bobbylockes (Post 1010807)
clARIFY dial was the issue. many thanks!!

any ideas how I can practice my ssb skills (or lack of them). I cant seen to find a channel that has any sailor chit chat.

I installed it as proof of concept on my boat today and did something ad could send but nothing was understandable.

Try 14.300 USB...always someone there. Maritime Mobile Net should be heard mostly after 12 in the afternoon depending on conditions. Yes it's an Amateur radio frequency but it's a very active net and should give you some experience for you to listen to gain experience.

SVAuspicious 04-01-2013 07:07 PM

Re: ssb m710 disney voice
 
Try 8152 if you don't have a ham license. The Cruiseheimers Net starts at 0830 US ET.

svHyLyte 04-02-2013 09:10 AM

Re: ssb m710 disney voice
 
Quote:

Originally Posted by bobbylockes (Post 1010807)
clARIFY dial was the issue. many thanks!!

any ideas how I can practice my ssb skills (or lack of them). I cant seen to find a channel that has any sailor chit chat.

I installed it as proof of concept on my boat today and did something ad could send but nothing was understandable.

Before you start booming out on the air waves, you will need a ship station license and a radio operators license. Both of these can be obtained on line without too much difficulty although as usual, government web sites leave a bit to be desired in the usability department so you will have to be patient. Start by going to the FCC Web site and drill down from there. (In your ship station license applicatiuon, list all of the transmitting equipment that you have aboard or are likely to have aboard--VHF, SSB, EPIRB, Radar, AIS Transponder et al, so you are covered as an when you obtain the various gear).

Once properly licensed, you can confirm the function of your radio by contacting WLO on one of its frequencies depending upon time of day, range and propagation. (Note that transmitting and receiving in a marina can sometimes be difficult because of all of the inference.)

Based upon your prior posts, it would be wise for you to pick up a copy of "SSB for Idi-Yots" which takes some of the mystery out of high frequency radio operation--which is decidedly different than VHF. Once you've established that you are transmitting and connecting well via WLO, you can participate in one or more of the SSB Nets save the Southbound Net for which one (now) must pre-register and be underway at sea or "Herb" will ignore you unless you're in an emergency situation. In any/every case, transmissions should be short, clear and too the point as air-time is a "Party Line" that only one talker can use at a time tho' all may hear. For more on the subject, a list of nets and the like, google Dockside Radio"

FWIW...


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