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10ot151
New member
Username: 10ot151

Post Number: 1
Registered: 9-2008
Posted on Thursday, September 18, 2008 - 2:14 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

hi all, some friend gave me a used magnum 257 because the radio no TX( i can hear me in other radio but the output is just 1 watt)and the RX is okey, the radio has the blue face and use the ERF2030 finals and Driver, my question is How can i Test The mosfet and how is the ajustment for the driver ?
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10ot151
New member
Username: 10ot151

Post Number: 2
Registered: 9-2008
Posted on Monday, September 29, 2008 - 7:25 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

anyone?
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Tech808
Moderator
Username: Tech808

Post Number: 16133
Registered: 8-2002


Posted on Monday, September 29, 2008 - 8:46 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

First do a GOOGLE search for:
Transmitter Alignment Magnum 257

If you cannot align it to factory specs it should show you where the problem is.

Without having the radio on the bench it could be a single or multiple problem's.

If the radio is still under Warranty from the previous owner Magnum should repair it.

If it is not under warranty I would personally still send it to Magnum for repair.


You can contact Sam Lewis / Owner of MAGNUM/RF Limited direct at: You will need to call/contact San Lewis at:
1-877-624-6869

or you can e-mail him direct with any Warranty or Repair question's at:

saml@rflimited

Sorry but there are just too many things that could be wrong to try and guess what the problem could be.

Hope this help's,
Lon~Tech808
CEF#0808/HAM#001/CVC#0002

Tech808@copperelectronics.com

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