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CX2SA > SATDIG 19.01.14 21:02l 301 Lines 9083 Bytes #999 (0) @ WW
BID : AMSATBB921
Read: GUEST
Subj: AMSAT-BB-digest V9 21
Path: IZ3LSV<IK2XDE<DB0RES<DB0ANF<CX2SA
Sent: 140119/2002Z @:CX2SA.SAL.URY.SA #:2717 [Salto] FBB7.00e $:AMSATBB921
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: 145 MHz signal blocking 435 MHz downlink (Andrew Glasbrenner)
2. Re: 145 MHz signal blocking 435 MHz downlink (Jim Jerzycke)
3. Fwd: rotors (Jerry Ehlers)
4. Fwd: rotors (Jerry Ehlers)
5. Re: 145 MHz signal blocking 435 MHz downlink (Jim Jerzycke)
----------------------------------------------------------------------
Message: 1
Date: Sun, 19 Jan 2014 14:07:25 -0500 (GMT-05:00)
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: Gabriel - EA6VQ <ea6vq@xxxxxx.xxx>, AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
Message-ID:
<100771.1390158446304.JavaMail.root@xxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
>From the old AMSAT website...maybe I'll move it to the new one today:
http://www.amsat.org/amsat-new/articles/Mode-J/
73, Drew KO4MA
-----Original Message-----
>From: Gabriel - EA6VQ <ea6vq@xxxxxx.xxx>
>Sent: Jan 19, 2014 1:56 PM
>To: AMSAT-BB@xxxxx.xxx
>Subject: [amsat-bb] 145 MHz signal blocking 435 MHz downlink
>
>Hi all,
>
>I have a coupling problem in my station when trying to work FO-29. My 2m
>signal is completely blocking the 435 MHz downlink, and so I can't hear my
>signal off the satellite. I guess it must be something related to the
>distance between the two yagis. (I use the terrestrial horizontal yagis you
>can see at http://www.dxmaps.com/jm19hn.html ). With mode-B satellites there
>is no problem. I have tried it with two different 435 receivers, and it's
>exactly the same.
>
>Anyone has had this problem o have an idea of the possible reason? And what
>is more important, of some way to solve it?
>
>Thanks for any possible help.
>
>73. Gabriel - EA6VQ
>_________________________________________________________
>Web-Site: HTTP://www.dxmaps.com
>VQLog 3.1 (build 78): HTTP://www.vqlog.com
>_________________________________________________________
>
>
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Sun, 19 Jan 2014 19:09:25 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
Message-ID: <52DC22E5.9010906@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Buy a diplexer, and connect it as shown in the linked article:
http://www.amsat.org/amsat-new/articles/Mode-J/
I also tilt both of my Yagis so they're 45* to the boom, which makes
them 90* to each other.
Yes, I lose some signal on terrestrial use, but ti helped cut the
coupling, and desense, down quite a bit.
73, Jim KQ6EA
On 01/19/2014 06:56 PM, Gabriel - EA6VQ wrote:
> Hi all,
>
> I have a coupling problem in my station when trying to work FO-29. My 2m
> signal is completely blocking the 435 MHz downlink, and so I can't hear my
> signal off the satellite. I guess it must be something related to the
> distance between the two yagis. (I use the terrestrial horizontal yagis you
> can see at http://www.dxmaps.com/jm19hn.html ). With mode-B satellites there
> is no problem. I have tried it with two different 435 receivers, and it's
> exactly the same.
>
> Anyone has had this problem o have an idea of the possible reason? And what
> is more important, of some way to solve it?
>
> Thanks for any possible help.
>
> 73. Gabriel - EA6VQ
> _________________________________________________________
> Web-Site: HTTP://www.dxmaps.com
> VQLog 3.1 (build 78): HTTP://www.vqlog.com
> _________________________________________________________
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 3
Date: Sun, 19 Jan 2014 13:23:24 -0600
From: Jerry Ehlers <w0sat2@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Fwd: rotors
Message-ID:
<CAKcwWq-8FOQEiSt8MnRCFFUedpCKEN7Y_nAz_gJG-7drrhpbqQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
---------- Forwarded message ----------
From: Jerry Ehlers <w0sat2@xxxxx.xxx>
Date: Sun, Jan 19, 2014 at 10:43 AM
Subject: Fwd: rotors
To: amsat-bb@xxxxx.xxx
---------- Forwarded message ----------
From: Jerry Ehlers <w0sat2@xxxxx.xxx>
Date: Sat, Jan 18, 2014 at 5:33 PM
Subject: rotors
To: amsat-bb@xxxxx.xxx
I have a good working 5400B control box and the azimuth and elevation
rotors
that need repairs all for $250.00 payment US postal money order
plus shipping in lower 48 only.
Jerry w0sat
------------------------------
Message: 4
Date: Sun, 19 Jan 2014 13:38:11 -0600
From: Jerry Ehlers <w0sat2@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Fwd: rotors
Message-ID:
<CAKcwWq9DcocBPtkAs7wqx5jjXXx5O6_c_+jzPLnLSu+NzNUd0A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
---------- Forwarded message ----------
From: Jerry Ehlers <w0sat2@xxxxx.xxx>
Date: Sun, Jan 19, 2014 at 1:23 PM
Subject: Fwd: rotors
To: amsat-bb@xxxxx.xxx
---------- Forwarded message ----------
From: Jerry Ehlers <w0sat2@xxxxx.xxx>
Date: Sun, Jan 19, 2014 at 10:43 AM
Subject: Fwd: rotors
To: amsat-bb@xxxxx.xxx
---------- Forwarded message ----------
From: Jerry Ehlers <w0sat2@xxxxx.xxx>
Date: Sat, Jan 18, 2014 at 5:33 PM
Subject: rotors
To: amsat-bb@xxxxx.xxx
I have a good working 5400B control box and the azimuth and elevation
rotors
that need repairs all for $250.00 payment US postal money order
plus shipping in lower 48 only.
Jerry w0sat
------------------------------
Message: 5
Date: Sun, 19 Jan 2014 19:41:19 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
To: w4tas <w4tas@xxx.xxx>, "'AMSAT Mailing List'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
Message-ID: <52DC2A5F.8040700@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Yep, been using one of those for years!
I have a Sinclair Labs unit that provides 100dB rejection outside of the
2 Meter band.
Jim KQ6EA
On 01/19/2014 07:32 PM, w4tas wrote:
> I would also suggest a low pass filter on the two meter transmitter.
> A diplexer will work well for this also.
> This will reduce the third harmonic which is causing your problem.
>
> Good luck,
>
>
>
>
> -----Original Message----- From: Jim Jerzycke
> Sent: Sunday, January 19, 2014 2:09 PM
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
>
> Buy a diplexer, and connect it as shown in the linked article:
>
>
> http://www.amsat.org/amsat-new/articles/Mode-J/
>
> I also tilt both of my Yagis so they're 45* to the boom, which makes
> them 90* to each other.
>
> Yes, I lose some signal on terrestrial use, but ti helped cut the
> coupling, and desense, down quite a bit.
>
> 73, Jim KQ6EA
>
> On 01/19/2014 06:56 PM, Gabriel - EA6VQ wrote:
>> Hi all,
>>
>> I have a coupling problem in my station when trying to work FO-29.
>> My 2m
>> signal is completely blocking the 435 MHz downlink, and so I can't
>> hear my
>> signal off the satellite. I guess it must be something related to the
>> distance between the two yagis. (I use the terrestrial horizontal
>> yagis you
>> can see at http://www.dxmaps.com/jm19hn.html ). With mode-B
>> satellites there
>> is no problem. I have tried it with two different 435 receivers, and
>> it's
>> exactly the same.
>>
>> Anyone has had this problem o have an idea of the possible reason?
>> And what
>> is more important, of some way to solve it?
>>
>> Thanks for any possible help.
>>
>> 73. Gabriel - EA6VQ
>> _________________________________________________________
>> Web-Site: HTTP://www.dxmaps.com
>> VQLog 3.1 (build 78): HTTP://www.vqlog.com
>> _________________________________________________________
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
>> program!
>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 9, Issue 21
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