Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
Mike Miller KA5SMA
On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller mmiller@nctc.com wrote:
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite real, and there is no fix I know of. I find that the birdie is so bad that even if I use a different receiver on UHF, I pick up the birdie on it as well! So it is a worse radio regarding satellite work than the ICOM if you care to work these birds. However, if you consider the fact that a fine HF radio is thrown in at no extra cost, that there is continuously adjustable filtering also at no cost, you might prefer that trade-off. I'm reasonably pleased with mine.
However, if money were no issue, I would get the ICOM for satellite work and a different HF radio with even better characteristics.
HTH,
73, Bruce VE9QRP
Oh boy, and here I just bought a used dual band mobile on the cheap (no transmit) to take care of the birdy problem.
Do you have any idea why the birdy would show up on a different radio? Could it be a matter of a lack of shielding? It just doesn't make any sense to me why a different rig would get that interference on receive, and even when using a different antenna.
Others have suggested using a preamp on 440, and turning off the 2000's internal preamp and lowering the rf gain, therefore using the preamp to get rid of most of the birdy.
But I guess I'll find out for sure when my other rig gets here.
73 de W4AS Sebastian
On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller mmiller@nctc.com wrote:
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite real, and there is no fix I know of. I find that the birdie is so bad that even if I use a different receiver on UHF, I pick up the birdie on it as well! So it is a worse radio regarding satellite work than the ICOM if you care to work these birds. However, if you consider the fact that a fine HF radio is thrown in at no extra cost, that there is continuously adjustable filtering also at no cost, you might prefer that trade-off. I'm reasonably pleased with mine.
However, if money were no issue, I would get the ICOM for satellite work and a different HF radio with even better characteristics.
HTH,
73, Bruce VE9QRP _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
Pardon my ignorance, but what the heck is a "birdy problem"?
The TS2000 generates an internal signal (a "birdie") on the downlink of SO-50 and AO-27. This signal overwhelms the satellite signal in most cases, making it difficult if no impossible to use on those two very popular satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
Pardon my ignorance, but what the heck is a "birdy problem"?
-- Terry Dillard, KI4YZI www.ki4yzi.com "Veritas Vos Liberabit"
On 7/24/08, Sebastian w4as@bellsouth.net wrote:
Oh boy, and here I just bought a used dual band mobile on the cheap (no transmit) to take care of the birdy problem.
Do you have any idea why the birdy would show up on a different radio? Could it be a matter of a lack of shielding? It just doesn't make any sense to me why a different rig would get that interference on receive, and even when using a different antenna.
Others have suggested using a preamp on 440, and turning off the 2000's internal preamp and lowering the rf gain, therefore using the preamp to get rid of most of the birdy.
But I guess I'll find out for sure when my other rig gets here.
73 de W4AS Sebastian
On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller mmiller@nctc.com wrote:
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite real, and there is no fix I know of. I find that the birdie is so bad that even if I use a different receiver on UHF, I pick up the birdie on it as well! So it is a worse radio regarding satellite work than the ICOM if you care to work these birds. However, if you consider the fact that a fine HF radio is thrown in at no extra cost, that there is continuously adjustable filtering also at no cost, you might prefer that trade-off. I'm reasonably pleased with mine.
However, if money were no issue, I would get the ICOM for satellite work and a different HF radio with even better characteristics.
HTH,
73, Bruce VE9QRP
Sent via AMSAT-BB@amsat.org. 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
My 847 has a number of birdies in the satellite band. I use a magic notch to silence them. It is not the perfect solution but it works.
73's << John
On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner glasbrenner@mindspring.com wrote:
The TS2000 generates an internal signal (a "birdie") on the downlink of SO-50 and AO-27. This signal overwhelms the satellite signal in most cases, making it difficult if no impossible to use on those two very popular satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
Pardon my ignorance, but what the heck is a "birdy problem"?
-- Terry Dillard, KI4YZI www.ki4yzi.com "Veritas Vos Liberabit"
On 7/24/08, Sebastian w4as@bellsouth.net wrote:
Oh boy, and here I just bought a used dual band mobile on the cheap (no transmit) to take care of the birdy problem.
Do you have any idea why the birdy would show up on a different radio? Could it be a matter of a lack of shielding? It just doesn't make any sense to me why a different rig would get that interference on receive, and even when using a different antenna.
Others have suggested using a preamp on 440, and turning off the 2000's internal preamp and lowering the rf gain, therefore using the preamp to get rid of most of the birdy.
But I guess I'll find out for sure when my other rig gets here.
73 de W4AS Sebastian
On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller mmiller@nctc.com wrote:
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite real, and there is no fix I know of. I find that the birdie is so bad that even if I use a different receiver on UHF, I pick up the birdie on it as well! So it is a worse radio regarding satellite work than the ICOM if you care to work these birds. However, if you consider the fact that a fine HF radio is thrown in at no extra cost, that there is continuously adjustable filtering also at no cost, you might prefer that trade-off. I'm reasonably pleased with mine.
However, if money were no issue, I would get the ICOM for satellite work and a different HF radio with even better characteristics.
HTH,
73, Bruce VE9QRP
Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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
Hi All,
My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70 cm and 23 cm and this is why I like it very much.
Tanks very much the OM that sold it to me as used to buy a new TS-2000X and his "birdies" !
73" de
i8CVS Domenico
----- Original Message ----- From: "John Price" n4qwf1@gmail.com To: "Andrew Glasbrenner" glasbrenner@mindspring.com; amsat-bb@amsat.org Sent: Friday, July 25, 2008 4:54 PM Subject: [amsat-bb] Re: VHF UHF Rig
My 847 has a number of birdies in the satellite band. I use a magic notch to silence them. It is not the perfect solution but it works.
73's << John
On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner glasbrenner@mindspring.com wrote:
The TS2000 generates an internal signal (a "birdie") on the downlink of SO-50 and AO-27. This signal overwhelms the satellite signal in most
cases,
making it difficult if no impossible to use on those two very popular satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
Pardon my ignorance, but what the heck is a "birdy problem"?
-- Terry Dillard, KI4YZI www.ki4yzi.com "Veritas Vos Liberabit"
On 7/24/08, Sebastian w4as@bellsouth.net wrote:
Oh boy, and here I just bought a used dual band mobile on the cheap (no transmit) to take care of the birdy problem.
Do you have any idea why the birdy would show up on a different radio? Could it be a matter of a lack of shielding? It just doesn't make any sense to me why a different rig would get that interference on receive, and even when using a different antenna.
Others have suggested using a preamp on 440, and turning off the 2000's internal preamp and lowering the rf gain, therefore using the preamp to get rid of most of the birdy.
But I guess I'll find out for sure when my other rig gets here.
73 de W4AS Sebastian
On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller mmiller@nctc.com wrote:
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite
real,
and there is no fix I know of. I find that the birdie is so bad that even if I use a different receiver on UHF, I pick up the birdie on
it
as well! So it is a worse radio regarding satellite work than the
ICOM
if you care to work these birds. However, if you consider the fact that a fine HF radio is thrown in at no extra cost, that there is continuously adjustable filtering also at no cost, you might prefer that trade-off. I'm reasonably pleased with mine.
However, if money were no issue, I would get the ICOM for satellite work and a different HF radio with even better characteristics.
HTH,
73, Bruce VE9QRP
Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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
-- N4QWF Amateur Radio Operator AO-7,AO-27,SO-50,AO-51,VO-52,ISS Internet N4QWF@AMSAT.ORG Echolink nodes #110903 -L #388463 Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il
From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming - "WOW, What a ride!" _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
Hi everyone,
Is there a radio that is small and lightweight that I could interface to a computer easily to receive and transmit packets to AO-51? I need one that I would not have to tinker with by hand; I want to use the radio (and the AO-51 pacsat) as the primary means to communicate with an ocean-deployed robot. Obviously my hand would not be there to correct for doppler, etc.
-andrew
On Fri, Jul 25, 2008 at 12:55 PM, i8cvs domenico.i8cvs@tin.it wrote:
Hi All,
My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70 cm and 23 cm and this is why I like it very much.
Tanks very much the OM that sold it to me as used to buy a new TS-2000X and his "birdies" !
73" de
i8CVS Domenico
----- Original Message ----- From: "John Price" n4qwf1@gmail.com To: "Andrew Glasbrenner" glasbrenner@mindspring.com; amsat-bb@amsat.org Sent: Friday, July 25, 2008 4:54 PM Subject: [amsat-bb] Re: VHF UHF Rig
My 847 has a number of birdies in the satellite band. I use a magic notch to silence them. It is not the perfect solution but it works.
73's << John
On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner glasbrenner@mindspring.com wrote:
The TS2000 generates an internal signal (a "birdie") on the downlink of SO-50 and AO-27. This signal overwhelms the satellite signal in most
cases,
making it difficult if no impossible to use on those two very popular satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
Pardon my ignorance, but what the heck is a "birdy problem"?
-- Terry Dillard, KI4YZI www.ki4yzi.com "Veritas Vos Liberabit"
On 7/24/08, Sebastian w4as@bellsouth.net wrote:
Oh boy, and here I just bought a used dual band mobile on the cheap (no transmit) to take care of the birdy problem.
Do you have any idea why the birdy would show up on a different radio? Could it be a matter of a lack of shielding? It just doesn't make any sense to me why a different rig would get that interference on receive, and even when using a different antenna.
Others have suggested using a preamp on 440, and turning off the 2000's internal preamp and lowering the rf gain, therefore using the preamp to get rid of most of the birdy.
But I guess I'll find out for sure when my other rig gets here.
73 de W4AS Sebastian
On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller mmiller@nctc.com wrote: > Thinking about selling 847.....Which rig is best for > satellite..work.? > > ICOM 910 H > Kenwood 2000 > > opinions ....your 2 cents
I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite
real,
and there is no fix I know of. I find that the birdie is so bad that even if I use a different receiver on UHF, I pick up the birdie on
it
as well! So it is a worse radio regarding satellite work than the
ICOM
if you care to work these birds. However, if you consider the fact that a fine HF radio is thrown in at no extra cost, that there is continuously adjustable filtering also at no cost, you might prefer that trade-off. I'm reasonably pleased with mine.
However, if money were no issue, I would get the ICOM for satellite work and a different HF radio with even better characteristics.
HTH,
73, Bruce VE9QRP
Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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
-- N4QWF Amateur Radio Operator AO-7,AO-27,SO-50,AO-51,VO-52,ISS Internet N4QWF@AMSAT.ORG Echolink nodes #110903 -L #388463 Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il
From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming - "WOW, What a ride!" _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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
Is there a radio that is small and lightweight that I could interface to a computer easily to receive and transmit packets to AO-51? I want to use the radio (and the AO-51 pacsat) as the primary means to communicate with an ocean-deployed robot.
Use any of the APRS radios (D7, D70, D710). They all have 9600 baud TNC's built in... Operate in UI digipeat mode assuming your command/telemetry is sparse and infrequent and not high volume..
Bob, WB4APR
Obviously my hand would not
be there to correct for doppler, etc.
-andrew
On Fri, Jul 25, 2008 at 12:55 PM, i8cvs
domenico.i8cvs@tin.it wrote:
Hi All,
My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70
cm and 23 cm
and this is why I like it very much.
Tanks very much the OM that sold it to me as used to buy a
new TS-2000X
and his "birdies" !
73" de
i8CVS Domenico
----- Original Message ----- From: "John Price" n4qwf1@gmail.com To: "Andrew Glasbrenner" glasbrenner@mindspring.com;
Sent: Friday, July 25, 2008 4:54 PM Subject: [amsat-bb] Re: VHF UHF Rig
My 847 has a number of birdies in the satellite band. I use
a magic
notch to silence them. It is not the perfect solution but it works.
73's << John
On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner glasbrenner@mindspring.com wrote:
The TS2000 generates an internal signal (a "birdie") on
the downlink of
SO-50 and AO-27. This signal overwhelms the satellite
signal in most
cases,
making it difficult if no impossible to use on those two
very popular
satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
Pardon my ignorance, but what the heck is a "birdy
problem"?
-- Terry Dillard, KI4YZI www.ki4yzi.com "Veritas Vos Liberabit"
On 7/24/08, Sebastian w4as@bellsouth.net wrote:
Oh boy, and here I just bought a used dual band mobile
on the cheap
(no transmit) to take care of the birdy problem.
Do you have any idea why the birdy would show up on a
different
radio? Could it be a matter of a lack of shielding?
It just doesn't
make any sense to me why a different rig would get
that interference
on receive, and even when using a different antenna.
Others have suggested using a preamp on 440, and
turning off the
2000's internal preamp and lowering the rf gain,
therefore using the
preamp to get rid of most of the birdy.
But I guess I'll find out for sure when my other rig
gets here.
73 de W4AS Sebastian
On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
> On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller
> wrote: >> Thinking about selling 847.....Which rig is best for >> satellite..work.? >> >> ICOM 910 H >> Kenwood 2000 >> >> opinions ....your 2 cents > > I own a TS-2000. The birdie problem on SO-50 and
AO-27 is quite
real,
> and there is no fix I know of. I find that the
birdie is so bad that
> even if I use a different receiver on UHF, I pick up
the birdie on
it
> as well! So it is a worse radio regarding satellite
work than the
ICOM
> if you care to work these birds. However, if you
consider the fact
> that a fine HF radio is thrown in at no extra cost,
that there is
> continuously adjustable filtering also at no cost,
you might prefer
> that trade-off. I'm reasonably pleased with mine. > > However, if money were no issue, I would get the
ICOM for satellite
> work and a different HF radio with even better
characteristics.
> > HTH, > > 73, Bruce > VE9QRP
Sent via AMSAT-BB@amsat.org. Opinions expressed are
those of the
author.
Not an AMSAT-NA member? Join now to support the amateur
satellite
program!
Subscription settings:
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Sent via AMSAT-BB@amsat.org. Opinions expressed are
those of the author.
Not an AMSAT-NA member? Join now to support the amateur
satellite
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Subscription settings:
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-- N4QWF Amateur Radio Operator AO-7,AO-27,SO-50,AO-51,VO-52,ISS Internet N4QWF@AMSAT.ORG Echolink nodes #110903 -L #388463 Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il
From the Foothills of the Blueridge
*Life should not be a journey to the grave with the
intention of
arriving safely in a pretty and well preserved body, but
rather to
skid in broadside, thoroughly used up, totally worn out,
and loudly
proclaiming - "WOW, What a ride!" _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. Opinions expressed are those
of the author.
Not an AMSAT-NA member? Join now to support the amateur
satellite program!
Subscription settings:
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Hi Bob,
Thanks for the info. I actually own a Kenwood TH-D7. Is that what you're referring to? I was under the impression that the TNC on the TH-D7 is permanently crippled and I couldn't use it to effectively communicate in both directions to a pacsat.
-andrew
On Fri, Jul 25, 2008 at 5:55 PM, Robert Bruninga bruninga@usna.edu wrote:
Is there a radio that is small and lightweight that I could interface to a computer easily to receive and transmit packets to AO-51? I want to use the radio (and the AO-51 pacsat) as the primary means to communicate with an ocean-deployed robot.
Use any of the APRS radios (D7, D70, D710). They all have 9600 baud TNC's built in... Operate in UI digipeat mode assuming your command/telemetry is sparse and infrequent and not high volume..
Bob, WB4APR
Obviously my hand would not
be there to correct for doppler, etc.
-andrew
On Fri, Jul 25, 2008 at 12:55 PM, i8cvs
domenico.i8cvs@tin.it wrote:
Hi All,
My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70
cm and 23 cm
and this is why I like it very much.
Tanks very much the OM that sold it to me as used to buy a
new TS-2000X
and his "birdies" !
73" de
i8CVS Domenico
----- Original Message ----- From: "John Price" n4qwf1@gmail.com To: "Andrew Glasbrenner" glasbrenner@mindspring.com;
Sent: Friday, July 25, 2008 4:54 PM Subject: [amsat-bb] Re: VHF UHF Rig
My 847 has a number of birdies in the satellite band. I use
a magic
notch to silence them. It is not the perfect solution but it works.
73's << John
On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner glasbrenner@mindspring.com wrote:
The TS2000 generates an internal signal (a "birdie") on
the downlink of
SO-50 and AO-27. This signal overwhelms the satellite
signal in most
cases,
making it difficult if no impossible to use on those two
very popular
satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
Pardon my ignorance, but what the heck is a "birdy
problem"?
-- Terry Dillard, KI4YZI www.ki4yzi.com "Veritas Vos Liberabit"
On 7/24/08, Sebastian w4as@bellsouth.net wrote: > > Oh boy, and here I just bought a used dual band mobile
on the cheap
> (no transmit) to take care of the birdy problem. > > Do you have any idea why the birdy would show up on a
different
> radio? Could it be a matter of a lack of shielding?
It just doesn't
> make any sense to me why a different rig would get
that interference
> on receive, and even when using a different antenna. > > Others have suggested using a preamp on 440, and
turning off the
> 2000's internal preamp and lowering the rf gain,
therefore using the
> preamp to get rid of most of the birdy. > > But I guess I'll find out for sure when my other rig
gets here.
> > 73 de W4AS > Sebastian > > On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote: > > > On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller
> > wrote: > >> Thinking about selling 847.....Which rig is best for > >> satellite..work.? > >> > >> ICOM 910 H > >> Kenwood 2000 > >> > >> opinions ....your 2 cents > > > > I own a TS-2000. The birdie problem on SO-50 and
AO-27 is quite
real,
> > and there is no fix I know of. I find that the
birdie is so bad that
> > even if I use a different receiver on UHF, I pick up
the birdie on
it
> > as well! So it is a worse radio regarding satellite
work than the
ICOM
> > if you care to work these birds. However, if you
consider the fact
> > that a fine HF radio is thrown in at no extra cost,
that there is
> > continuously adjustable filtering also at no cost,
you might prefer
> > that trade-off. I'm reasonably pleased with mine. > > > > However, if money were no issue, I would get the
ICOM for satellite
> > work and a different HF radio with even better
characteristics.
> > > > HTH, > > > > 73, Bruce > > VE9QRP > _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. Opinions expressed are
those of the author.
Not an AMSAT-NA member? Join now to support the amateur
satellite
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Subscription settings:
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-- N4QWF Amateur Radio Operator AO-7,AO-27,SO-50,AO-51,VO-52,ISS Internet N4QWF@AMSAT.ORG Echolink nodes #110903 -L #388463 Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il
From the Foothills of the Blueridge
*Life should not be a journey to the grave with the
intention of
arriving safely in a pretty and well preserved body, but
rather to
skid in broadside, thoroughly used up, totally worn out,
and loudly
proclaiming - "WOW, What a ride!" _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those
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Thanks for the info. I actually own a Kenwood TH-D7. Is that what you're referring to? I was under the impression that the TNC on the TH-D7 is permanently crippled and I couldn't use it to effectively communicate in both directions to a pacsat.
Its all in the Details.....
The TH-D7 TNC works perfectly well... For what it was designed to do... That is APRS, or other UI packets. The only thing it has problems with is CONNECTED mode, handing lots of data, at high throughput, in KISS mode at 9600 baud. IE, using it for classical PACSAT mode.
But on the other hand, you can use it to digipeat through the PACSAT all the time with no problems whatsoever. This is APRS mode, single packet at a time, digipeat using UI packets at 9600 baud. Which, by the way, are more efficient in the task you are proposing anyway...
Good luck. Bob, WB4APR
-andrew
On Fri, Jul 25, 2008 at 5:55 PM, Robert Bruninga bruninga@usna.edu wrote:
Is there a radio that is small and lightweight that I could interface to a computer easily to receive and transmit packets to AO-51? I want to use the radio (and the AO-51 pacsat) as the primary means to communicate with an ocean-deployed robot.
Use any of the APRS radios (D7, D70, D710). They all have
9600
baud TNC's built in... Operate in UI digipeat mode assuming
your
command/telemetry is sparse and infrequent and not high
volume..
Bob, WB4APR
Obviously my hand would not
be there to correct for doppler, etc.
-andrew
On Fri, Jul 25, 2008 at 12:55 PM, i8cvs
domenico.i8cvs@tin.it wrote:
Hi All,
My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70
cm and 23 cm
and this is why I like it very much.
Tanks very much the OM that sold it to me as used to buy
a
new TS-2000X
and his "birdies" !
73" de
i8CVS Domenico
----- Original Message ----- From: "John Price" n4qwf1@gmail.com To: "Andrew Glasbrenner" glasbrenner@mindspring.com;
Sent: Friday, July 25, 2008 4:54 PM Subject: [amsat-bb] Re: VHF UHF Rig
My 847 has a number of birdies in the satellite band. I
use
a magic
notch to silence them. It is not the perfect solution but it works.
73's << John
On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner glasbrenner@mindspring.com wrote:
The TS2000 generates an internal signal (a "birdie")
on
the downlink of
SO-50 and AO-27. This signal overwhelms the satellite
signal in most
cases,
making it difficult if no impossible to use on those
two
very popular
satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
> Pardon my ignorance, but what the heck is a "birdy
problem"?
> > -- > Terry Dillard, KI4YZI > www.ki4yzi.com > "Veritas Vos Liberabit" > > > On 7/24/08, Sebastian w4as@bellsouth.net wrote: >> >> Oh boy, and here I just bought a used dual band
mobile
on the cheap
>> (no transmit) to take care of the birdy problem. >> >> Do you have any idea why the birdy would show up on
a
different
>> radio? Could it be a matter of a lack of shielding?
It just doesn't
>> make any sense to me why a different rig would get
that interference
>> on receive, and even when using a different antenna. >> >> Others have suggested using a preamp on 440, and
turning off the
>> 2000's internal preamp and lowering the rf gain,
therefore using the
>> preamp to get rid of most of the birdy. >> >> But I guess I'll find out for sure when my other rig
gets here.
>> >> 73 de W4AS >> Sebastian >> >> On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote: >> >> > On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller
>> > wrote: >> >> Thinking about selling 847.....Which rig is best
for
>> >> satellite..work.? >> >> >> >> ICOM 910 H >> >> Kenwood 2000 >> >> >> >> opinions ....your 2 cents >> > >> > I own a TS-2000. The birdie problem on SO-50 and
AO-27 is quite
real,
>> > and there is no fix I know of. I find that the
birdie is so bad that
>> > even if I use a different receiver on UHF, I pick
up
the birdie on
it
>> > as well! So it is a worse radio regarding
satellite
work than the
ICOM
>> > if you care to work these birds. However, if you
consider the fact
>> > that a fine HF radio is thrown in at no extra
cost,
that there is
>> > continuously adjustable filtering also at no cost,
you might prefer
>> > that trade-off. I'm reasonably pleased with mine. >> > >> > However, if money were no issue, I would get the
ICOM for satellite
>> > work and a different HF radio with even better
characteristics.
>> > >> > HTH, >> > >> > 73, Bruce >> > VE9QRP >> > _______________________________________________ > Sent via AMSAT-BB@amsat.org. Opinions expressed are
those of the
author.
> Not an AMSAT-NA member? Join now to support the
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-- N4QWF Amateur Radio Operator AO-7,AO-27,SO-50,AO-51,VO-52,ISS Internet N4QWF@AMSAT.ORG Echolink nodes #110903 -L #388463 Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il
From the Foothills of the Blueridge
*Life should not be a journey to the grave with the
intention of
arriving safely in a pretty and well preserved body, but
rather to
skid in broadside, thoroughly used up, totally worn out,
and loudly
proclaiming - "WOW, What a ride!" _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are
those
of the author.
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Does this "ocean-deployed robot" have it's own amateur radio license to allow it to transmit to the satellite?
Andrew Harris wrote:
Hi everyone,
Is there a radio that is small and lightweight that I could interface to a computer easily to receive and transmit packets to AO-51? I need one that I would not have to tinker with by hand; I want to use the radio (and the AO-51 pacsat) as the primary means to communicate with an ocean-deployed robot. Obviously my hand would not be there to correct for doppler, etc.
-andrew
On Fri, Jul 25, 2008 at 11:32 AM, Andrew Glasbrenner glasbrenner@mindspring.com wrote:
The TS2000 generates an internal signal (a "birdie") on the downlink of SO-50 and AO-27. This signal overwhelms the satellite signal in most cases, making it difficult if no impossible to use on those two very popular satellites.
73, Drew KO4MA
----- Original Message ----- From: "Terry Dillard" tdillard@gmail.com To: AMSAT-BB@amsat.org Sent: Friday, July 25, 2008 9:55 AM Subject: [amsat-bb] Re: VHF UHF Rig
Pardon my ignorance, but what the heck is a "birdy problem"?
-- Terry Dillard, KI4YZI www.ki4yzi.com "Veritas Vos Liberabit"
On 7/24/08, Sebastian w4as@bellsouth.net wrote:
Oh boy, and here I just bought a used dual band mobile on the cheap (no transmit) to take care of the birdy problem.
Do you have any idea why the birdy would show up on a different radio? Could it be a matter of a lack of shielding? It just doesn't make any sense to me why a different rig would get that interference on receive, and even when using a different antenna.
Others have suggested using a preamp on 440, and turning off the 2000's internal preamp and lowering the rf gain, therefore using the preamp to get rid of most of the birdy.
But I guess I'll find out for sure when my other rig gets here.
I should say that my receiving antennas, though outside, are very close to my transceiver, maybe 4m away through a wood-frame house. What I assume is happening is that the signal leaks out of the case of the TS-2000 and is picked up by the antenna itself. I do use a mast-mount preamp. I have tried including another preamp before the input to the rig and so forth, but because I think my problem is actually at the antenna and not merely in the rig, these solutions have not worked well.
I'm sure if I added another 30m between the rig and the antenna, the story would be quite different: then it would be more of an internal signal which could be swamped by preamps, etc. I'm also quite willing to believe that this problem varies from radio to radio.
All that said, I'm still reasonably happy with the TS-2000. I forgot to mention that it has built-in TNC for 1200 baud and 9600 baud packet radio (or satellites). There is only one serial port, so you have to either do computer-controlled doppler tuning or download packets to your computer, not both. When using the internal TNC for pacsats, I just ride the RIT control manually.
If anyone has some wisdom about tamping down the SO-50 birdie, I'm all ears.
On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller mmiller@nctc.com wrote:
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite real, and there is no fix I know of. I find that the birdie is so bad that even if I use a different receiver on UHF, I pick up the birdie on it as well! So it is a worse radio regarding satellite work than the ICOM if you care to work these birds. However, if you consider the fact that a fine HF radio is thrown in at no extra cost, that there is continuously adjustable filtering also at no cost, you might prefer that trade-off. I'm reasonably pleased with mine.
However, if money were no issue, I would get the ICOM for satellite work and a different HF radio with even better characteristics.
HTH,
73, Bruce VE9QRP
Sent via AMSAT-BB@amsat.org. 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
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I think the 847 is the best rig for satellite work! ;-) In fact, I just bought one...
Want to buy a FT-736r?
Dave
On Wed, Jul 23, 2008 at 9:31 PM, Mike Miller mmiller@nctc.com wrote:
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H Kenwood 2000
opinions ....your 2 cents
Mike Miller KA5SMA _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
participants (11)
-
Andrew Glasbrenner -
Andrew Harris -
Bruce Robertson -
Dave hartzell -
i8cvs -
John Price -
Mike Miller -
Nigel Gunn G8IFF/W8IFF -
Robert Bruninga -
Sebastian -
Terry Dillard