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AW: LF: 630m OP8

To: <[email protected]>
Subject: AW: LF: 630m OP8
From: "Joe" <[email protected]>
Date: Thu, 21 May 2015 10:33:24 +0200
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]cal> <[email protected]om> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
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Thread-index: AdCTIrWuX2HrQFpdT9Oo5Yt/vnUJRgAdUcnw
Hi Joe, MF

the last nights I have been testing various antennas and receivers on MF.

1. ELAD FDM DUO with RF systems DX-1-------only local OP8 decodes
2. ELAD FDM DUO with Wellbrook ALA-100HG-----only local OP8 decodes     
3. SDR-IQ with Wellbrook

03:22    477 VO1NA Op8 -29 dB
|---------------------------------------------------------------------------
--------------------------- ------- ------- | Fade: 3%
03:11    477 VO1NA Op8 -25 dB
|---------------------------------------------------------------------------
--------------------------------------------| Fade: 0% 
03:01    477 VO1NA Op8 -26 dB
|---------------------------------------------------------------------------
--------------------------------------------| Fade: 0%
02:50    477 VO1NA Op8 -26 dB
|---------------------------------------------------------------------------
--------------------------------------------| Fade: 0%
02:40    477 VO1NA Op8 -29 dB   |--- -  ---------------------------------- -
---------------------------------------------------------------------------|
Fade: 4%
01:47    477 VO1NA Op8 -33 dB
|---------------------------------------------- - -  --- ------------------
----- --------  ---   ----------------------| Fade: 10%
01:37    477 VO1NA Op8 -33 dB
|------------------------------------------------------------------ --------
----- ---- ---- -  - --------  ------------| Fade: 8%
01:26    477 VO1NA Op8 -34 dB   |-- ----------- ------  -  ---------- ------
-------------- -----  -----------------------------------------------------|
Fade: 9%
01:16    477 VO1NA Op8 -32 dB
|-------------------------------------------------------------------
----------- -- -- -------------------    -  ---  --| Fade: 10%
01:05    477 VO1NA Op8 -30 dB
|---------------------------------------------------------------------------
------------------------- --- -      -- ----| Fade: 8%
00:55    477 VO1NA Op8 -28 dB   |------------------------------------
-----------------------------------------------
-----------------------------| Fade: 6%
00:44    477 VO1NA Op8 -30 dB   | - - - --- -------- -------------------
----------------------------------------------------------------------------
---| Fade: 6%

The ELAD can´t handle the Wellbrook loop, it is allways clipping (ADC
overload) even with a 10dB attenuator in front.

73 Joe
DF2JP




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