I've heard nothing the last hour.

W8EH

On 4/16/2010 1:20 PM, Mark L. Hammond wrote:

Just copied somebody on CW!

N8MH

Also hearing them. Be certain, if you can, to try different polarity. It does make a difference.

Alan WA4SCA

-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Sebastian Sent: Friday, April 16, 2010 12:46 PM To: Mark L.Hammond Cc: AMSAT BB Subject: [amsat-bb] Re: Arecibo

I can hear very faint CW from them.

I'm surprised as I have just a single yagi, and apparently their amp isn't working.

73 de W4AS

On Apr 16, 2010, at 1:20 PM, Mark L. Hammond wrote:

Just copied somebody on CW!

N8MH

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Sorry, -13 dB. Kind of distracted with getting my dish set up.

73, Ed - KL7UW

At 10:38 AM 4/16/2010, Edward Cole wrote:

Alan,

Are you saying try a different CP? If you are linear it should not matter what orientation you chose (that is assuming Arecibo is CP). I am not ready with the dish so I quickly tried with my M2 11-element yagi (fixed on horizon) into 0.5 dB GasFet Preamp (Moon was 14-deg elevation). Nothing heard on their published freq. of 432.045. Now I see they were on 432.040 (didn't tune that far down). If they were running 20w instead of 400w that is -23 dB on their signal which will make it hard for small yagis to copy (even CW with narrow filters).

Back to work on the dish. My 436CP42 is out of commission due to apparently burning out the pots in my B5400 az-el rotator (long story).

73, Ed - KL7UW

At 09:50 AM 4/16/2010, Alan P. Biddle wrote:

...

Also hearing them. Be certain, if you can, to try different polarity. It does make a difference.

Alan WA4SCA

-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Sebastian Sent: Friday, April 16, 2010 12:46 PM To: Mark L.Hammond Cc: AMSAT BB Subject: [amsat-bb] Re: Arecibo

I can hear very faint CW from them.

I'm surprised as I have just a single yagi, and apparently their amp isn't working.

73 de W4AS

On Apr 16, 2010, at 1:20 PM, Mark L. Hammond wrote:

...

Just copied somebody on CW!

N8MH

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73, Ed - KL7UW, WD2XSH/45

BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010 DUBUS Magazine USA Rep dubususa@hotmail.com ======================================

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73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010 DUBUS Magazine USA Rep dubususa@hotmail.com ======================================

Luc and All,

I was able to copy the CW signal "fair" at times (when my local pulse noise was down) today around 1840 utc with just a Cushcraft 432-20T (my 1970's antenna) using a SSB 7000 and a TS-2000x with both preamps on. I was talking to a local EME operator on 220mhz (WD4JHD) and would tell him when I heard the signal. He would confirm my reception each time. I will say it was not good enough to work a contact.

I was just amazed that I could hear them at all with my "flea" antenna. It's only 4 ft long and was running axial feed to both driven elements. I was elevated between 67 to 70 plus degrees at the time. I never could hear the other station, but did hear KP4AO give someone a 559 report. I hope they run digital mode Sunday to see if I can decode it.

73 all, Rick WA4NVM

On a 24elem linear yagi+preamp signal here is very very weak could be one or two dits from them. Just hope they can get their linear back i will try JT65B

"-"

Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE

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...

Luc and All,

I was able to copy the CW signal "fair" at times (when my local pulse noise was down) today around 1840 utc with just a Cushcraft 432-20T

73 all, Rick WA4NVM

Hi Rick, WA4NVM

As far I remember the 432-20T should be a 10 + 10 elements crossed yagi. Do you remember if your antenna is connected for RHCP or LHCP ?

Since Arecibo transmit a RHCP toward the moon and the moon reflects back a LHCP wave if you was able to copy the CW signal then your antenna should be LHCP.

Please let us know if possible.

Tanks

73" de

i8CVS Domenico

You are correct about the antenna. It is a 10 + 10 element crossed yagi. At the time I put it back up a few years ago, I didn't know what the FM birds were using, RH or LH. So, I took the delay line off and hooked up both driven elements to the phasing harness "Y" in what Cushcraft called "axial radiation".

I would think this would give me the "best and worst" of everything. It would make my uplink power and downlink receive "half" of what they could be if they were phased correctly. Since I don't have any way to switch polarity, I use it this way on all the birds. I'm still very surprised I heard anything on this setup.

73,

Rick WA4NVM