RE: LF: FW: EME / 500/-1 0- 2.5 Watts per stream

[Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>]

Graham,

 

I guess that in theory the 500Hz version should be better (FM with a better modulation index ?)

But only if noise is uniform.

 

What about a simultanious session ROS-EME / JT4C ? Both have about the same bandwith.

 

73, Rik  ON7YD

 

---

Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Graham [g8fzk@g8fzk.fsnet.co.uk]
Verzonden: maandag 3 mei 2010 15:02
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: FW: EME / 500/-1 0- 2.5 Watts per stream

Thanks  Rik

 

Well  that  was not  supposed to  happen .. hihi .. Jose had expected the  500/1 to  give the  best  copy ..... 

 

73 - G ..

From: Rik Strobbe

Sent: Monday, May 03, 2010 8:17 AM

To: rsgb_lf_group@blacksheep.org

Subject: LF: FW: EME / 500/-1 0- 2.5 Watts per stream

Graham,

 

this is what I copied last night, but due to some oddity of the refelcter the message did not come through:

 

---

Van: Rik Strobbe
Verzonden: zondag 2 mei 2010 23:56
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: RE: EME / 500/-1 0- 2.5 Watts per stream

Graham,

 

500Hz:

RX1: <21:18 UTC> <9,3 Hz> XG0NBD@HOTL>:78.W(:2:Y>9O5CMG44 <CANCEL> <-30 dB>

RX1: <21:23 UTC> <9,3 Hz> <G0NBD@HOTMAO\.CKM> 1234567890:) <STOP> <-31 dB>

RX1: <21:28 UTC> <9,8 Hz> <G0NBD@HEX2\>Q>COAD$,R2-F678:3B8#S)(H TZHV8+YJBP7_(B"B%/@YNAJI=$VF,+ZUT1_BN <CANCEL> <-35 dB>

RX1: <21:37 UTC> <9,8 Hz> <G0NBD@HOTMAIN"3$Z!234569SPAJ7%^_6+ <CANCEL> <-38 dB>

RX1: <21:42 UTC> <9,3 Hz> <EX>BEPHM<>%P27B*//C(?NJ>(M3U:[NWH <STOP> <-35 dB>

RX1: <21:47 UTC> <9,3 Hz> <G0NBH@HOM:_7Y/>N5ZH2347C4>\$7?MYX-V <CANCEL> <-37 dB>

RX1: <21:52 UTC> <9,3 Hz> <G0NBD@HOTMAJ"QO<6VP& 34560:) /FVD#TN HZ?]<(T_V#U4T5AZ <CANCEL> <-32 dB>

 

EME:

RX1: <21:18 UTC> <13,2 Hz> <G0NBD@HOTMAIL.COM> 1234567890:) <STOP> <-25 dB>

RX1: <21:23 UTC> <12,7 Hz> <G0NBD@HOTMAIL.COM> 1234567890:) <STOP> <-22 dB>

RX1: <21:28 UTC> <12,7 Hz> <G0NBD@HOTMAIL.COM> 1234567890:) <STOP> <-29 dB>

RX1: <21:33 UTC> <12,7 Hz> <G0NBD@HOTMAIL.COM> 2 C?5< H92")G>] <CANCEL> <-35 dB>

RX1: <21:37 UTC> <12,7 Hz> <G0NBD@HOTMAIL.COM> 1234567890:) <STOP> <-29 dB>

RX1: <21:42 UTC> <12,7 Hz> <G0NBD@HOTMAIL.COM2>I>Q&?Y^GW^A8P& <STOP> <-33 dB>

RX1: <21:47 UTC> <12,7 Hz> <G0NBD@HOTMAIL.COM> 1234567890:) <STOP> <-29 dB>

RX1: <21:51 UTC> <12,7 Hz> <G0NBD@HOTMAIL.COM> 1234567890:) 10W <CANCEL> <-31 dB>

 

My vote goes to EME mode ;-)

 

73, Rik  ON7YD - OR7T

 

---

Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Graham [g8fzk@g8fzk.fsnet.co.uk]
Verzonden: zondag 2 mei 2010 23:48
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: LF: EME / 500/-1 0- 2.5 Watts per stream

Will reduce to  approx 2.5 Watt's  per  stream at 2300  local

 

Tnx  for  reports G ..

 

 

From: Graham

Sent: Sunday, May 02, 2010 10:24 PM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: EME / 500/-1 0- 10 Watts per stream

Reduced to  10  watts  per  steam  22-30  hrs local

 

Tnx - G .

 

 

From: Graham

Sent: Sunday, May 02, 2010 10:13 PM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: EME / 500/-1 0- 25 Watts per stream

Reduced to  25  watts  per stream , added 1234567890 to the text

Tnx  for  reports

 

G .

From: Graham

Sent: Sunday, May 02, 2010 9:40 PM

To: rsgb_lf_group@blacksheep.org

Subject: LF: EME / 500/-1 0- 40 Watts per stream

As of  21-15  local time power  set ..40  watts  per  data  stream  (may be  too  much ?)

 

NB : Pls  run  x2 session's  of ros   for  comparative  test

 

Will  run till  round  midnight

 

Thanks  for the  reports  via  the  email  system  and the  ref

 

73 - G

From: Graham

Sent: Sunday, May 02, 2010 8:28 PM

To: rsgb_lf_group@blacksheep.org

Subject: LF: ROS EME / 500/-1 0- Reduced power

I am reducing power to  1 watt  Ae feed  to  allow  Gary  to  do  some low level  checks

will  qro  later

 

G ..

From: Graham

Sent: Sunday, May 02, 2010 7:10 PM

To: rsgb_lf_group@blacksheep.org

Subject: LF: ROS EME / 500/-1 Bit speed 502.00 KHz

Dual mode  ROS Beacon running , check  for  activity >> http://www.wireless.org.uk/grab/

 

ROS    EME

 

ROS    500 Hz / 1 Bit  speed

Dial  set  502.000 KHz USB

 

Dual reception by  running  two  sessions  of  ROS . , set  eme  and  HF  500 rx  1  bit  speed

select the  minimum  AFC  range

 

The  HF  500/1 bit  should  out  perform the  eme  mode

Software  download >>  http://rosmodem.wordpress.com/

Reports  welcome via  ref  or the  auto  email  mode

 

Note  - Due to  low af  drive  level - NO RX -

 

Tnx - G .