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Copying AO-40, but not sure why

Here's the setup:  Drake 2880 with crystal mod 8.8125,
removed the two IF coils and that's all.

Output the Drake into a Hamtronics CA145-28 converter.

Output the Hamtronics converter into my ICOM 756 PRO.
Listened for signal at 27.0318 Mhz...never heard a thing.

Decided to tune around the 28 Mhz band to see if I could hear
anything...Viola!! at 28. 39905 I hear this buzzing sound.
Put my Radio Shack wireless headset on and went outside
where I had the Bob Meyers Bar-b-cue grill leaning against
a chair and pointing to where I thought AO-40 was.   I picked
it up and moved it around and the signal went up and down
and was strongest where AO-40 should be.  Was this AO-40
are some RADAR signal somewhere?

Back into the house I brought up WECPSK version 1.1a.
Double Viola!!! The program began to copy...I've added
a bit of what I got below...I still have to go through and see
if I have any valid CRC blocks, but at this stage, I'm amazed
at what I got with my kludged setup.

Big question is, why am I received the signals at 28.38723?
This was the final frequency I was receiving on before LOS.

The Hamtronics CA145-28 was peaked around 145 MHz, and
while I was receiving AO-40 I peaked the RF and multiplier
coils for maximum signal strength, around S-9 on the 756
PRO...the spectrum scope sure helps in finding a signal.

I would appreciate any comments on why I'm receiving at
around 28.380-28.399MHz.

tnx, de Bill, N4DH

----------------------------------------------------------------------------------------------------------------------------------
Here is a bit of what I copied.

NOT REGISTRED WPSKDEC 1.1d - AMSAT-FRANCE

## AO-40 IHU-1 Telemetry Display - OE1KIB, OE1VKW, F1HDD, XTOPHE ##
A  HI, THIS IS AMSAT OSCAR-40       2001-04-20  15:20:04  #00DD
+----------------------------------.--------------.------------+
|      All beacons will be OFF from MA = 3 to MA = 80          |
+--------------------------------------------------------------+
________________________ Orbit data ____________________________
AMSAT day 08510  Time 15:20:04.36 UTC  Orbit No 00216  Phase 245
________________________ Status ________________________________
RX: U(-2.2dB) L1(0.6dB)
TX: S2(0x6bW MB)
Beacons: GB(PSK;) MB(EB source; S2/Ku)
Ant/Pre-amps: V-Rx=hi V-Tx=om U-Rx=hi U-Tx=om L-hi+preamp
Experiments: IHU-2
Main battery on; Memory soft error count: 3
________________________ Temperatures [°C] _____________________
  SolPan1  -22.3  SolPan2  -17.6  SolPan3  -17.6  SolPan4  -18.3
  SolPan5  -17.6  SolPan6  -20.9
  BCR1       8.7  BCR2      17.3  BCR3      14.7
  MainBatB2 35.1  MainBatB4 97.7  MainBatB6-22.3
  AuxBatB1  39.0  AuxBatB5  19.9
  V-TX      16.6  U-Excit   13.3  U-Amp     20.6  S1-TX     10.0
  S2-TX     13.3  X-TX      86.5  X-TX TWT  88.5
  U&V-RX     6.7  L1-RX      8.7  L2-RX     14.0  S1-HF RX  14.0
  S2-C RX   14.7  IHU        4.1  SEU        2.8  EPU       18.6
  HP1+X-Y   20.6  HP2+X+Y   17.9  HP2+X-Y   17.9  HP2-X     97.7
  HP3+X     12.7  HP3-X     13.3  HP4+X+Y    9.4
  NH3 B2    37.1  MMH B3    16.0  N2O4-X-Y  97.7  N2O4+X+Y  14.7
  He Tank   97.7
  Top       97.7  Bottom    97.7  Back      97.7  Side2Pan  -0.5
  Side4Pan  -2.5  S ant      1.5
________________________ Voltages [V] __________________________
  Main-Bat  27.9  Aux-Bat   24.4
  BCR1-In   19.8  BCR2-In   23.3    BCR3-In   23.2
  28V Bus   27.6  10V-C1BCR2  10.5  10V-C2BCR3  10.6
________________________ Currents [mA] _________________________
  SP1-BCR1 16427  SP4-BCR2 16427  SP2-BCR3 16427
  SP6-BCR1 16427  SP5-BCR2 16427  SP3-BCR3 16427
  10V-C1BCR2  2025  10V-C2BCR3  2038  28V-SSEU 0x9b
  28V-Bat   1014  28VU1EPU    -1  28VU2Bus  2807
  28VU3-S    558  28V-BCR   3443
  28VS-PA/M 4601  10VS-PA/M 0xa5  X-Helix      3 K-Tx      0x8c
________________________ Sun/Earth Sensors _____________________
Sensor mode: spin
  SS1 PLL: locked  SS2 count: 242  SpinRate[rpm]   0.9
  SS Z-25    -4°  SS Y-25    -4°  SS Up-X     0°  SS Up-Y     0°
  SS Z-45    -6°  SS Y-45    -6°  SS Dwn-X   85°  SS Dwn-Y   58°
###### AO-40 IHU-1 Telemetry Display --- End of A/E Block ######

  CRC NOT VALID 2d6 instead 18c5
  NOT REGISTRED WPSKDEC 1.1d - AMSAT-FRANCE

M  QST de AO-40  2001 Apr 15. Best estimate of attitude Alat=14;Alon as per 
table.  Your telemetry, good or"...  .E@..pi.tÉ.  DÊxÐe@ .an...aj.x oÊ 
.pÆ  v.b.e.B..tH @P.Ê... "b.."@.o.@ti.p  JÏu".a.À. ..x.m.HtÙ ...e. b|. Fehd 
...@.b.tt.lg...M.Df.j.Æ...p.$N.rÈ biJ@A.eÐ p TeF B`.n@¼ T.¼@A.f. .@.fp@.l.. 
ø Rö.....h. .Åp Blfd  4Q0 @122 ¼ .1U @Q15@| 210 @1.8 | R19  101 | 222  94 | 
225   .   R1a  240 . 214  112 | .17  R05 | 220 @98@ p R20  Aa |@4RV@ 
84   412  1Q7 L R1.  1Q0@¼@4Q8 @R`5 p@RT1  :.  | .24  89 | .27 @8R@
  CRC NOT VALID e5f8 instead 9a2b  

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