![]() |
|
Tuning SSB on Kaito/Degen 1103
Help!
I cannot seem to properly tune SSB on my 1103 (it is a Degen from China). I have the sparse manual that comes with it, but following its instructions (tune to channel in AM, then hit SSB button and use the Fine Tuning knob) does not accomplish much. In fact, when I turn on SSB, there is very little coming out of the receiver at all (no noise, no signal, no nothing). I know that I must be missing something simple. I have been listening in the 80/75-meter band (3500 to 4000 kHz) and I can tune in some "Donald Duck"-like voices, but switching to SSB and fiddling with the Fine Tuning knob seems useless. Any help is greatly appreciated! Thanks, matt |
Tuning SSB on Kaito/Degen 1103
"mcnowinski" wrote in message
ups.com... Help! I cannot seem to properly tune SSB on my 1103 (it is a Degen from China). I have the sparse manual that comes with it, but following its instructions (tune to channel in AM, then hit SSB button and use the Fine Tuning knob) does not accomplish much. In fact, when I turn on SSB, there is very little coming out of the receiver at all (no noise, no signal, no nothing). I know that I must be missing something simple. I have been listening in the 80/75-meter band (3500 to 4000 kHz) and I can tune in some "Donald Duck"-like voices, but switching to SSB and fiddling with the Fine Tuning knob seems useless. Any help is greatly appreciated! Thanks, matt "Fine" tuning means exactly that. SSB on a portable is a delicate issue. The fine tuning knob must be moved almost microscopically... I'm not kidding, I'm talking fractions of a millimeter. It takes real practice. I have to brace my hand on the radio body and use my thumb to imperceptibly move the knob. Find your "Donald Duck" voice station(s), switch to SSB, and practice moving the knob *minutely*. I can't emphasize that enough. It's almost like not moving the knob at all. Depending on your location try some of the AFRTS stations (all are USB). You need a good approximation of the center point for the tuning knob. If the station is a whole number frequency, enter that frequency, switch on SSB and fine tune. (see above). If the AFRTS station is something like 12133.5, enter 12133, switch to SSB and move the knob "up" from the center position. (You can use 12134, switch to SSB, then tune "down".) Go to http://www.primetimeshortwave. com for English schedules showing AFRTS. Never has it been more true that "Practice makes perfect", than for SSB on a portable. |
Tuning SSB on Kaito/Degen 1103
Matt,
Set the BFO control on the right side to the middle point. Thats about 2.5 tweaks from either end. Then when in the ssb mode tune in Donald Duck unitl you get the best sound then fine tune with BFO knob. It takes a safecracker's touch, but soon you won't have to think about it. If you know when & where a particular net tunes up then you can just hop on the frequency directly and fine tune bfo. Up here in New England, Spirit net meets on 3905ish weeknights around 9pm I think. 73 NEO mcnowinski wrote: Help! I cannot seem to properly tune SSB on my 1103 (it is a Degen from China). I have the sparse manual that comes with it, but following its instructions (tune to channel in AM, then hit SSB button and use the Fine Tuning knob) does not accomplish much. In fact, when I turn on SSB, there is very little coming out of the receiver at all (no noise, no signal, no nothing). I know that I must be missing something simple. I have been listening in the 80/75-meter band (3500 to 4000 kHz) and I can tune in some "Donald Duck"-like voices, but switching to SSB and fiddling with the Fine Tuning knob seems useless. Any help is greatly appreciated! Thanks, matt |
Tuning SSB on Kaito/Degen 1103
"Sanjaya" put an extra space where it shouldn't be and typed... Go to http://www.primetimeshortwave. com for English schedules showing AFRTS. Never has it been more true that "Practice makes perfect", than for SSB on a portable. This link is right http://www.primetimeshortwave.com |
Tuning SSB on Kaito/Degen 1103
On 1 Aug 2006 10:15:20 -0700, "mcnowinski"
wrote: Help! I cannot seem to properly tune SSB on my 1103 (it is a Degen from China). I have the sparse manual that comes with it, but following its instructions (tune to channel in AM, then hit SSB button and use the Fine Tuning knob) does not accomplish much. In fact, when I turn on SSB, there is very little coming out of the receiver at all (no noise, no signal, no nothing). I know that I must be missing something simple. I have been listening in the 80/75-meter band (3500 to 4000 kHz) and I can tune in some "Donald Duck"-like voices, but switching to SSB and fiddling with the Fine Tuning knob seems useless. Any help is greatly appreciated! Not much you can do. The one advantage a synchronous AM detector has is that it can be phase locked to whatever is left of the carrier. Without being able to do that, some amount of phase distortion in the output of the product detectable is unavoicable unless you go the Indepedent/quadrature modulated route. There is simply no way to recover the phase relationships, so some the donald duck sound is a fact of life with SSB reception. Thanks, matt |
Tuning SSB on Kaito/Degen 1103
In article ,
matt weber wrote: I have been listening in the 80/75-meter band (3500 to 4000 kHz) and I can tune in some "Donald Duck"-like voices, but switching to SSB and fiddling with the Fine Tuning knob seems useless. Any help is greatly appreciated! Not much you can do. The one advantage a synchronous AM detector has is that it can be phase locked to whatever is left of the carrier. Without being able to do that, some amount of phase distortion in the output of the product detectable is unavoicable unless you go the Indepedent/quadrature modulated route. There is simply no way to recover the phase relationships, so some the donald duck sound is a fact of life with SSB reception. Unless the 1103 is defective, chances are the OP is just inexperienced. It takes practice and patience to fine tune SSB signals on a small radio like this. I have an 1102, and there is definitely a learning curve involved. Once you learn it, however, the 1102 is surprisingly capable. Mike |
Tuning SSB on Kaito/Degen 1103
Thanks for all of the suggestions, I will give it another try.
Is it normal for me not to hear anything in SSB until I hit near the "sweet" spot with the BFO control? Thanks again! matt Mike wrote: In article , matt weber wrote: I have been listening in the 80/75-meter band (3500 to 4000 kHz) and I can tune in some "Donald Duck"-like voices, but switching to SSB and fiddling with the Fine Tuning knob seems useless. Any help is greatly appreciated! Not much you can do. The one advantage a synchronous AM detector has is that it can be phase locked to whatever is left of the carrier. Without being able to do that, some amount of phase distortion in the output of the product detectable is unavoicable unless you go the Indepedent/quadrature modulated route. There is simply no way to recover the phase relationships, so some the donald duck sound is a fact of life with SSB reception. Unless the 1103 is defective, chances are the OP is just inexperienced. It takes practice and patience to fine tune SSB signals on a small radio like this. I have an 1102, and there is definitely a learning curve involved. Once you learn it, however, the 1102 is surprisingly capable. Mike |
Tuning SSB on Kaito/Degen 1103
In article .com,
"mcnowinski" wrote: Thanks for all of the suggestions, I will give it another try. Is it normal for me not to hear anything in SSB until I hit near the "sweet" spot with the BFO control? Yes. I normally crank up the volume once I go into SSB mode, so it's easier to fine tune. As you adjust the knob, you hear the Donald Duck voice, and then it suddenly sounds normal. Mike |
Tuning SSB on Kaito/Degen 1103
Hi Matt, all, from Ken in the UK,
Matt, the best way to resolve SSB signals is to listen in the SSB mode, ie, with the ssb switch on and the fine control set to the centre of it's travel. Remember, you must tune very slowly in one KHz steps, no good tuning fast, you will resolve nothing. Once you hear a strong ( to start with ) SSB signal then use the fine control to resolve the speech best to suit your hears and the signal is understandable. If you find you can't tune the signal in by means of the fine control then just adjust the frequency by one KHz one way or the other and try once again to resolve the audio. One final point, make sure you are listening on a band that uses SSB solely ( or a mixture of AM and SSB ). The best band to start with is the 'Eighty Meter' band early in the evening. If none of the above work then I'm afraid you may have a problem with your radio.....sorry. I do hope the above helps, cheers, Ken, G4KIR. "mcnowinski" wrote in message oups.com... Thanks for all of the suggestions, I will give it another try. Is it normal for me not to hear anything in SSB until I hit near the "sweet" spot with the BFO control? NO. Thanks again! matt |
Tuning SSB on Kaito/Degen 1103
Had to click my tv remote to see what day and date this is.I am going to
the Goodwill store in about three hours.I am going to ask Pam to look at my big tittys and tell me what size I am. cuhulin |
All times are GMT +1. The time now is 07:09 AM. |
|
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com