[TenTec] OT: Holiday SDR Project

[Carl Moreschi]

I have been studying the merits of the DXE RTR verses the MFJ-1708 some 
more.  I now conclude that the DXE unit offers no more protection than 
the MFJ unit for this use.  The DXE unit has a limiter but the limiter 
would not be across the receive input of the panadapter radio.

Also both units will not protect anything if the amp key line is not 
connected.

The best solution is to modify the transceiver for an aux receiver 
output.  Most tentec radios can be easily modified for that.

If you can't modify the transceiver, the next best option is to use the 
MFJ-1708 with two mods to it.  Add a wire from the transceiver SO-239 to 
the antenna SO-239 as previously stated.  Also add two back to back 
diodes across the receive SO-239 and ground to act as a limiter in case 
there is a failure of some type.  For diodes, Radio Shack 276-1661 
should be fine.

Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com

On 11/9/2014 5:58 PM, Carl Moreschi wrote:
> I agree the DX Engineering RTR looks like a safer solution.
>
> Carl Moreschi N4PY
> 58 Hogwood Rd
> Louisburg, NC 27549
> www.n4py.com
>
> On 11/9/2014 1:44 PM, George Fritkin via TenTec wrote:
>> DX Engineering RTR
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