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Ralph Blach April 11th 04 09:05 PM

ft1880R problem
 
I have a Yeasu ft8100r dual band 2m /440 rig. I am having problems on
the 2 meter side of the rig. When I depress the ptt I rig hangs in
transmit. This does not happen on 440. Does anybody know why this
might be happening.

Thanks

Chip

Robert Grizzard April 11th 04 10:43 PM

Ralph Blach wrote:


I have a Yeasu ft8100r dual band 2m /440 rig. I am having problems on
the 2 meter side of the rig. When I depress the ptt I rig hangs in
transmit. This does not happen on 440. Does anybody know why this
might be happening.


Sounds like you might have a little RF getting back into the keying
circuit, possibly as a result of an antenna failure of some type. Can
you duplicate the problem transmitting into a dummy load?

--
To design the perfect anti-Unix, write an operating system that thinks
it knows what you're doing better than you do. And then adds injury to
insult by getting it wrong.
- esr

Robert Grizzard April 11th 04 10:43 PM

Ralph Blach wrote:


I have a Yeasu ft8100r dual band 2m /440 rig. I am having problems on
the 2 meter side of the rig. When I depress the ptt I rig hangs in
transmit. This does not happen on 440. Does anybody know why this
might be happening.


Sounds like you might have a little RF getting back into the keying
circuit, possibly as a result of an antenna failure of some type. Can
you duplicate the problem transmitting into a dummy load?

--
To design the perfect anti-Unix, write an operating system that thinks
it knows what you're doing better than you do. And then adds injury to
insult by getting it wrong.
- esr

Robert Grizzard April 11th 04 10:43 PM

Ralph Blach wrote:


I have a Yeasu ft8100r dual band 2m /440 rig. I am having problems on
the 2 meter side of the rig. When I depress the ptt I rig hangs in
transmit. This does not happen on 440. Does anybody know why this
might be happening.


Another possibility that just occurred to me is the existence of a "one
touch" PTT arrangement, where the mike needs two discrete presses of the
PTT to switch into transmit then back out. What happens if you release
the PTT then depress and release it again?

--
To design the perfect anti-Unix, write an operating system that thinks
it knows what you're doing better than you do. And then adds injury to
insult by getting it wrong.
- esr


Robert Grizzard April 11th 04 10:43 PM

Ralph Blach wrote:


I have a Yeasu ft8100r dual band 2m /440 rig. I am having problems on
the 2 meter side of the rig. When I depress the ptt I rig hangs in
transmit. This does not happen on 440. Does anybody know why this
might be happening.


Another possibility that just occurred to me is the existence of a "one
touch" PTT arrangement, where the mike needs two discrete presses of the
PTT to switch into transmit then back out. What happens if you release
the PTT then depress and release it again?

--
To design the perfect anti-Unix, write an operating system that thinks
it knows what you're doing better than you do. And then adds injury to
insult by getting it wrong.
- esr


Ralph Blach April 12th 04 01:26 AM

Well it as definately RF getting into the rig. I put the antenna on top
of my car and the rig worked perfectly. Now, Since I plan to use this
rig close to the antenna, how do I keep the rf out the rig?

I guess I will have to put in a steel tool box and keep the head outside
of the rig.

Any other Ideas.

Chip


Ralph Blach wrote:
I have a Yeasu ft8100r dual band 2m /440 rig. I am having problems on
the 2 meter side of the rig. When I depress the ptt I rig hangs in
transmit. This does not happen on 440. Does anybody know why this
might be happening.

Thanks

Chip


Ralph Blach April 12th 04 01:26 AM

Well it as definately RF getting into the rig. I put the antenna on top
of my car and the rig worked perfectly. Now, Since I plan to use this
rig close to the antenna, how do I keep the rf out the rig?

I guess I will have to put in a steel tool box and keep the head outside
of the rig.

Any other Ideas.

Chip


Ralph Blach wrote:
I have a Yeasu ft8100r dual band 2m /440 rig. I am having problems on
the 2 meter side of the rig. When I depress the ptt I rig hangs in
transmit. This does not happen on 440. Does anybody know why this
might be happening.

Thanks

Chip


Robert Grizzard April 12th 04 01:59 AM

Ralph Blach wrote:


Well it as definately RF getting into the rig. I put the antenna on top
of my car and the rig worked perfectly. Now, Since I plan to use this
rig close to the antenna, how do I keep the rf out the rig?


I guess I will have to put in a steel tool box and keep the head outside
of the rig.


Any other Ideas.


How well does it behave at its lowest power setting in your preferred
layout?

Can you reliably hit the repeater at that power?

Have you tried clipping ferrite beads to the power leads, any external
speaker leads, any control head/main body leads, and the mike cable?

--
To design the perfect anti-Unix, write an operating system that thinks
it knows what you're doing better than you do. And then adds injury to
insult by getting it wrong.
- esr


Robert Grizzard April 12th 04 01:59 AM

Ralph Blach wrote:


Well it as definately RF getting into the rig. I put the antenna on top
of my car and the rig worked perfectly. Now, Since I plan to use this
rig close to the antenna, how do I keep the rf out the rig?


I guess I will have to put in a steel tool box and keep the head outside
of the rig.


Any other Ideas.


How well does it behave at its lowest power setting in your preferred
layout?

Can you reliably hit the repeater at that power?

Have you tried clipping ferrite beads to the power leads, any external
speaker leads, any control head/main body leads, and the mike cable?

--
To design the perfect anti-Unix, write an operating system that thinks
it knows what you're doing better than you do. And then adds injury to
insult by getting it wrong.
- esr


Ralph Blach April 12th 04 02:44 AM

Thats not the problem. Most of the time I operating in
Red Cross Shelters and the Radio and antenna are going to be in close
proximity. Last year, I was at a shelter during a hurricane and the
antenna had to be indoors. In theses situations, I need High power to
get throught the walls of the shelters.

Any Ideas.

Chip



Robert Grizzard wrote:
Ralph Blach wrote:



Well it as definately RF getting into the rig. I put the antenna on top
of my car and the rig worked perfectly. Now, Since I plan to use this
rig close to the antenna, how do I keep the rf out the rig?



I guess I will have to put in a steel tool box and keep the head outside
of the rig.



Any other Ideas.



How well does it behave at its lowest power setting in your preferred
layout?

Can you reliably hit the repeater at that power?

Have you tried clipping ferrite beads to the power leads, any external
speaker leads, any control head/main body leads, and the mike cable?



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