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Michel Feldheim
Michel Feldheim
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I have an old Graupner 35Mhz transmitter and receiver which I would like to get running again. Bought batteries and connected power and a servo to the receiver but nothing happens when I use the sendertransmitter. Both have the same frequency quartz.

Do you have any tips on how to verify that both the transmitter and the receiver are functional or how to debug? I have a basic oscilloscope and a multimeter at hands. Both batteries are loaded and connected properly, I think. When I connect the servo to the receiver I sometimes get a tiny movement of the servo as I am plugging it in.

Any helpful input would be highly appreciated

I have an old Graupner 35Mhz transmitter and receiver which I would like to get running again. Bought batteries and connected power and a servo to the receiver but nothing happens when I use the sender. Both have the same frequency quartz.

Do you have any tips on how to verify that both the transmitter and the receiver are functional or how to debug? I have a basic oscilloscope and a multimeter at hands. Both batteries are loaded and connected properly, I think. When I connect the servo to the receiver I sometimes get a tiny movement of the servo as I am plugging it in.

Any helpful input would be highly appreciated

I have an old Graupner 35Mhz transmitter and receiver which I would like to get running again. Bought batteries and connected power and a servo to the receiver but nothing happens when I use the transmitter. Both have the same frequency quartz.

Do you have any tips on how to verify that both the transmitter and the receiver are functional or how to debug? I have a basic oscilloscope and a multimeter at hands. Both batteries are loaded and connected properly, I think. When I connect the servo to the receiver I sometimes get a tiny movement of the servo as I am plugging it in.

Any helpful input would be highly appreciated

changed 'sender' to 'transmitter'
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edit approved May 11, 2020 at 13:06
Schome1
edit approved May 11, 2020 at 13:06
Schome1
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I have an old Graupner 35Mhz sendertransmitter and receiver which I would like to get running again. Bought batteries and connected power and a servo to the receiver but nothing happens when I use the sender. Both have the same frequency quartz.

Do you have any tips on how to verify that both the sendertransmitter and the receiver are functional or how to debug? I have a basic oscilloscope and a multimeter at hands. Both batteries are loaded and connected properly, I think. And whenWhen I connect the servo to the receiver I sometimes get a tiny movement of the servo as I am plugging it in.

Any helpful input would be highly appreciated

I have an old Graupner 35Mhz sender and receiver which I would like to get running again. Bought batteries and connected power and a servo to the receiver but nothing happens when I use the sender. Both have the same frequency quartz.

Do you have any tips on how to verify that both the sender and the receiver are functional or how to debug? I have a basic oscilloscope and a multimeter at hands. Both batteries are loaded and connected properly I think. And when I connect the servo to the receiver I sometimes get a tiny movement of the servo as I am plugging it in.

Any helpful input would be highly appreciated

I have an old Graupner 35Mhz transmitter and receiver which I would like to get running again. Bought batteries and connected power and a servo to the receiver but nothing happens when I use the sender. Both have the same frequency quartz.

Do you have any tips on how to verify that both the transmitter and the receiver are functional or how to debug? I have a basic oscilloscope and a multimeter at hands. Both batteries are loaded and connected properly, I think. When I connect the servo to the receiver I sometimes get a tiny movement of the servo as I am plugging it in.

Any helpful input would be highly appreciated

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Michel Feldheim
Michel Feldheim
  • 141
  • 5

Analog Graupner MC-12 with R-700 receiver

I have an old Graupner 35Mhz sender and receiver which I would like to get running again. Bought batteries and connected power and a servo to the receiver but nothing happens when I use the sender. Both have the same frequency quartz.

Do you have any tips on how to verify that both the sender and the receiver are functional or how to debug? I have a basic oscilloscope and a multimeter at hands. Both batteries are loaded and connected properly I think. And when I connect the servo to the receiver I sometimes get a tiny movement of the servo as I am plugging it in.

Any helpful input would be highly appreciated