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Hello Gang, Maybe I misunderstood the question but The came from the factory to able to just receive in GEN mode. Yaesu and others had ways to get the 980 to transmit on GEN. I bought a FT-980 that

Yes, I will use an oscilloscope to view the frequency. The current is high even without microphone, but only in USB. Thanks. Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la

Jose, Fred has a good point.? It would be good to know what your rig is putting out in GEN mode.? You were saying it was drawing a significant current.? If it were generating a real USB signal,

Are you thinking on autooscilations)? Thanks, good hint. Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525 Santa Cruz - Bolivia

Put a dummy load and a frequency counter on the antenna connector. Key the rig. Is RF being generated? If so, at what frequency? 73 - Fred, N8YX

Thanks, Roger,? I will check it. Battery on radio are new for a moment. Is only with USB at any band. (The current rise up to 10 A without any modulation on microphone. In LSB all is ok). Jose Dr.

Hi Jose, A good idea by Wald to check for GEN TX mods. There is a Gen folder in the Files section with some RF board pictures and info. I was looking for items to add to the Files section and found

Hi, Wald, very thanks for reply. This radio is not new, it is a gift of a friend.? Maybe one circuit is defectived. Very thanks. Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y

Hello Jose, I checked this scenario on my FT-980 and it is not doing that.? I tried to key up on 14.005 and 14.5 MHz. No Ic current in any mode, on any freq. Have you had this radio since new?? If

Yes, I have already read on this topic. Aninterface for RS232 binary with +12 and -12 V is missing. I amthinking of incorporating the MAX232 that internally has the generation of thenegative source

Hi Dave, Like you I have two FT-980's. I had forgotten about the FT newsletter also covering the FT-980. I opened up my CDROM FT Newsletter and started looking at it again. It brings back fond

Roger, Glad to meet the co-owner of the FT-980 list at .io. I bought my first FT-980 in 1983. At 76 I have some difficulties working on my rigs. I have two FT-980's now and copied the pages from

Hi Jose, I can’t see how your circuit can work. Looking at the RS-232 side pin 2 (RWD). Where is the RS-232 side – 12 VDC source for logic One? Where is the RS-232 side + 12 VDC source for logic

But what is the differences between FIF-232 and mine? All these interfaces works with transistors in two regimens: cut and saturation, because the logic binary works with them. I use optos to separate

I used the FIF-232 years ago to get on PSK31. Look at EBAY as there are sellers who are selling interface cables for the FT-980. My FT-980's (I still have 2) but I have an SDR transceiver that does

[email protected] Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525 Santa Cruz - Bolivia

Hi, friends, I have noted in my FT980, in GEN mode, at any frenquency when I active TX in USB the current in the final state (METER I), rise uo to 10 A, even without audio in microphone and DRIVE and

Very thanks Roger... have a nice day. Jose Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525 Santa Cruz - Bolivia

I uploaded the FIF-232C schematic to the Files section.

Hi Jose, It seems like a lot of work to save less than $40. Search FIF-232 on eBay. 73 Roger VE7LB