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Title: Yaesu FT 890.....AM OK------SSB NOT Post by: KL7OF on January 30, 2015, 09:16:56 AM There is a Yaesu FT 890 here at W1LYD.....It works on AM but when I push the SSB button, Nada...I'm hoping this is a problem someone has dealt with before and there is a fix for it...any suggestions? I'm not experienced working on bamboo radios, but this seems like a nice rig ...worth giving it some attention...Thanks...Steve
Title: Re: Yaesu FT 890.....AM OK------SSB NOT Post by: N2DTS on January 30, 2015, 11:17:34 AM Seems good to me, someone already did a good mod.
Title: Re: Yaesu FT 890.....AM OK------SSB NOT Post by: KL7OF on January 30, 2015, 11:30:04 AM Well, upon further investigation today, It now only has TX output on FM...AM is RX only It had AM output yesterday...SSB nothing...CW nothing.....I found a manual, So far it has provided no inspiration other than maybe to get the hood up and look for some bad ribbon connector etc....
Title: Re: Yaesu FT 890.....AM OK------SSB NOT Post by: N8ETQ on January 30, 2015, 02:28:54 PM They are hard to work on but it should be pretty easy to diagnose. Sounds to me like Mixer troubles. Remember the thing will use different IF frequencies and stages and conversion schemes depending on Mode. If I had this issue I would use another Rice box and ensure I could hear all the diff. oscillators, for all the diff mixers. Could just be a bad rock. Your manual should tell what mixers and LO's are used per Mode. Flaky rocks are classic indicator of "Variable" symptoms. Those rigs are hitting that age now. GL /Dan Title: Re: Yaesu FT 890.....AM OK------SSB NOT Post by: KL7OF on January 30, 2015, 06:03:42 PM Thanks Dan......
Title: Re: Yaesu FT 890.....AM OK------SSB NOT Post by: N2DTS on January 30, 2015, 07:51:40 PM Sure its not dirty switch contacts or something simple like that?
Title: Re: Yaesu FT 890.....AM OK------SSB NOT Post by: w4bfs on January 31, 2015, 02:18:52 PM Seems good to me, someone already did a good mod. you old rascal Title: Re: Yaesu FT 890.....AM OK------SSB NOT Post by: W2VW on January 31, 2015, 06:59:22 PM The unnatural breathing pattern used on sideband to keep the watt meter swinging and keep others from doubling can cause health problems. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Listen to those without eyesight on ssb. They always sound much more natural. |