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 transmitted on GEN and I used that on 60 meters.? I had the separte channels? in memories so all I had to do was turn on the rig and hit a memory button.? Worked great until others got 60 meter (5 mhz) and could use other modes and frequencies.? Cheating on power was obvious as I heard stations on m7 80 meter half loop but several stations always got better signals than I did.? I worked 21 DXCC entities plus 41 states including KH6 and KL7.
73 dave K4JRB
? ? ?
_._,_._,_
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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 Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
El jueves, 4 de junio de 2020 04:28:53 p.?m. GMT-4, Wald N4PL via groups.io <n4pl@...> escribió:
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, the current should be zero (actually, the idle current, with no mic audio).?
It would be great if you could connect a spectrum analyzer or a frequency counter after the dummy load.? Yes, this could be self-oscillations.
Let us know of your progress.
73, Wald N4PL
On Thursday, June 4, 2020, 12:02:21 PM EDT, jose carlos leon via groups.io <josecarlosleon48@...> wrote:
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
El jueves, 4 de junio de 2020 11:36:08 a.?m. GMT-4, Fred_N8YX <n8yx@...> escribió:
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
|
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, the current should be zero (actually, the idle current, with no mic audio).?
It would be great if you could connect a spectrum analyzer or a frequency counter after the dummy load.? Yes, this could be self-oscillations.
Let us know of your progress.
73, Wald N4PL
On Thursday, June 4, 2020, 12:02:21 PM EDT, jose carlos leon via groups.io <josecarlosleon48@...> wrote:
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
El jueves, 4 de junio de 2020 11:36:08 a.?m. GMT-4, Fred_N8YX <n8yx@...> escribió:
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
|
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
El jueves, 4 de junio de 2020 11:36:08 a.?m. GMT-4, Fred_N8YX <n8yx@...> escribió:
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
|
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. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
El miércoles, 3 de junio de 2020 02:50:46 p.?m. GMT-4, Roger VE7LB <roger_ve7lb@...> escribió:
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 an item about FT-980 batteries. Take a look at "FT-980 Batteries".
I would try starting the FT-980 with no batteries to see if the default program clears the problem. Then put fresh batteries in.
73
Roger VE7LB
|
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 an item about FT-980 batteries. Take a look at "FT-980 Batteries".
I would try starting the FT-980 with no batteries to see if the default program clears the problem. Then put fresh batteries in.
73
Roger VE7LB
|
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 la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
El martes, 2 de junio de 2020 03:29:13 p.?m. GMT-4, Wald N4PL via groups.io <n4pl@...> escribió:
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 not, then you could have a CB mod for GEN TX.? They did that to get on 11m USB back in the days.
73, Wald N4PL
On Friday, May 29, 2020, 11:27:32 PM EDT, jose carlos leon via groups.io <josecarlosleon48@...> wrote:
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 MONI en minimun. In LSB the current is zero, normal.
Any hint to this anomaly?
Tnx.... CP6CL - JOSE
Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
|
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 not, then you could have a CB mod for GEN TX.? They did that to get on 11m USB back in the days.
73, Wald N4PL
On Friday, May 29, 2020, 11:27:32 PM EDT, jose carlos leon via groups.io <josecarlosleon48@...> wrote:
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 MONI en minimun. In LSB the current is zero, normal.
Any hint to this anomaly?
Tnx.... CP6CL - JOSE
Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
|
Yes, I have already read on this topic. An
interface for RS232 binary with +12 and -12 V is missing. I am
thinking of incorporating the MAX232 that internally has the generation of the
negative source from the positive one.
?Thanks for these arguments.
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 Zero? ? Look at the FIF-232 diagram. The power supply outputs +12 VDC and – 12 VDC. The actual RS-232 specification lists voltages between -5 and -15 for the negative and +5 and +15 for the positive. ? 73 Roger VE7LB group co-owner
Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
El lunes, 1 de junio de 2020 02:40:43 p.?m. GMT-4, Roger VE7LB <roger_ve7lb@...> escribió:
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 memories of waiting for the FT newsletter and the Yellow Sheets every month. You can read about what I was doing back then on page 8327. For some reason page 8313 is missing from my pdf copy.
Are your FT-980 pages in pdf format? If so please upload them to the Files section as we can use all the tips we can get.
73
Roger VE7LB group co-owner
|
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 memories of waiting for the FT newsletter and the Yellow Sheets every month. You can read about what I was doing back then on page 8327. For some reason page 8313 is missing from my pdf copy.
Are your FT-980 pages in pdf format? If so please upload them to the Files section as we can use all the tips we can get.
73
Roger VE7LB group co-owner
|
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 the old Fox Tango newsletter with tips and fixes.? I sent out 10 copies.? I am about 35 miles East of Carol the owner of the Fox Tango web page.
TNX es 73? Dave K4JRB
-----Original Message-----
From: Roger VE7LB
Sent: May 30, 2020 8:39 PM
To: [email protected]
Subject: Re: [Yaesu-FT-980] CAT Interface
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 Zero? ? Look at the FIF-232 diagram. The power supply outputs +12 VDC and – 12 VDC. The actual RS-232 specification lists voltages between -5 and -15 for the negative and +5 and +15 for the positive. ? 73 Roger VE7LB group co-owner ? ? ? 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 the grounds and the transitors inside work in cut and saturations too. Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia El sábado, 30 de mayo de 2020 10:12:30 a.?m. GMT-4, Dave Thompson <thompson@...> escribió: 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 not even need an interface for digital.? Good luck with your interface for the FT-980. ? -----Original Message-----
From: "jose carlos leon via groups.io"
Sent: May 29, 2020 6:09 PM
To: [email protected]
Subject: [Yaesu-FT-980] CAT Interface
Hi, guys,
I am interesting in build an CAT Interface to my FT980.
Have you any circuit details?? Tnx Jose? (CP6CL)
|
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 Zero? ? Look at the FIF-232 diagram. The power supply outputs +12 VDC and – 12 VDC. The actual RS-232 specification lists voltages between -5 and -15 for the negative and +5 and +15 for the positive. ? 73 Roger VE7LB group co-owner ? ?
toggle quoted message
Show quoted text
From: [email protected] < [email protected]> On Behalf Of jose carlos leon via groups.io Sent: Saturday, May 30, 2020 3:37 PM To: [email protected]Subject: Re: [Yaesu-FT-980] CAT Interface ? 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 the grounds and the transitors inside work in cut and saturations too. Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia El sábado, 30 de mayo de 2020 10:12:30 a.?m. GMT-4, Dave Thompson <thompson@...> escribió: 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 not even need an interface for digital.? Good luck with your interface for the FT-980. ? -----Original Message-----
From: "jose carlos leon via groups.io"
Sent: May 29, 2020 6:09 PM
To: [email protected]
Subject: [Yaesu-FT-980] CAT Interface
Hi, guys,
I am interesting in build an CAT Interface to my FT980.
Have you any circuit details?? Tnx Jose? (CP6CL)
|
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 the grounds and the transitors inside work in cut and saturations too.
Look my interface:
Thanks for reply.?
Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
El sábado, 30 de mayo de 2020 10:12:30 a.?m. GMT-4, Dave Thompson <thompson@...> escribió:
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 not even need an interface for digital.? Good luck with your interface for the FT-980.
73 Dave K4JRB.
-----Original Message-----
From: "jose carlos leon via groups.io"
Sent: May 29, 2020 6:09 PM
To: [email protected]
Subject: [Yaesu-FT-980] CAT Interface
Hi, guys,
I am interesting in build an CAT Interface to my FT980.
Have you any circuit details?? Tnx Jose? (CP6CL)
|
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 not even need an interface for digital.? Good luck with your interface for the FT-980.
73 Dave K4JRB.
-----Original Message-----
From: "jose carlos leon via groups.io"
Sent: May 29, 2020 6:09 PM
To: [email protected]
Subject: [Yaesu-FT-980] CAT Interface
Hi, guys,
I am interesting in build an CAT Interface to my FT980.
Have you any circuit details?? Tnx Jose? (CP6CL)
|
Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
El viernes, 29 de mayo de 2020 10:08:33 p.?m. GMT-4, jose carlos leon <josecarlosleon48@...> escribió:
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
El viernes, 29 de mayo de 2020 07:35:42 p.?m. GMT-4, Roger VE7LB <roger_ve7lb@...> escribió:
I uploaded the FIF-232C schematic to the Files section.
|
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 MONI en minimun. In LSB the current is zero, normal.
Any hint to this anomaly?
Tnx.... CP6CL - JOSE
Dr. José Carlos León Ortega UDI- Universidad para el Desarrollo y la Innovación Tel. (591 3) 3422525
Santa Cruz - Bolivia
|
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
El viernes, 29 de mayo de 2020 07:35:42 p.?m. GMT-4, Roger VE7LB <roger_ve7lb@...> escribió:
I uploaded the FIF-232C schematic to the Files section.
|
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
|
N4PL
