Dosy Tc-4001-P

[Decoder]

Does any body know the frequency range of this meter. And does anybody have a schematic for this unit as you can't check modulation it just can't be set. I'm open to ideas. I'm just trying to get it go for my friend he just needs it for a reference. Thank You in advance.

 

[BBB]

I would assume their test equipment should be good throughout the HF bands up to 30 MHz.

http://www.dosy.com/pdf/tc4001p.pdf

 

[9C1Driver]

The modulation readings from any Dosey are pretty much worthless, looks pretty when that needle swings but that's it.

 

[Road Squawker]

The modulation readings from any Dosey are pretty much worthless....

... Say it ain't so......................

 

[Tallman]

Watts and peak watts are pretty close to fictional.

 

[BBB]

Some more information on Dosy Meter issues here:

http://www.worldwidedx.com/threads/problem-with-a-dosy-meter.21401/page-2

Video review of meter here with some inside pics:

 

[Steve_Buckeye]

I heard t can be tweaked to read anything.......

 

[Jllm]

Does any body know the frequency range of this meter. And does anybody have a schematic for this unit as you can't check modulation it just can't be set. I'm open to ideas. I'm just trying to get it go for my friend he just needs it for a reference. Thank You in advance.

25-30 mhz

 

[Jllm]

I heard t can be tweaked to read anything.......

No

 

[Xracerx13]

I have a schematic for the 4002 pretty much the same thing.

 

[FlyBoy50]

Some more information on Dosy Meter issues here:

http://www.worldwidedx.com/threads/problem-with-a-dosy-meter.21401/page-2

Video review of meter here with some inside pics:

I have 3 different Dosy meters and have never burnt up a radio using them but I consider them Home Owner Grade equipment. I had my first one calibrated to a Bird meter at a local radio repair shop and set the other 2 to match the first. But then again I never figured on going into business with them. Just my humble opinion !

 

[FlyBoy50]

I have a schematic for the 4002 pretty much the same thing.

This one was my first Dosy and it occupies my bench most of the time.

 

[Steve_Buckeye]

I like the Dosy, I leave it on-line. It's a good reference incase anything goes wrong with the antenna or cables outside the house. Anytime I make a change to the station I check it with the Bird Meter first before transmitting.