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Rafael Diniz
 

Hi everybody,

I bought two ubitx v6, and now I'm waiting them to arrive. One question
about wideband operation - if I bypass the SSB filter, could I get a
clean 15kHz wide operation?

Thanks,
Rafael PU2UIT
 

Rafael,

Bypassing the SSB filter would make the receiver be wideband,
but you would lose single signal reception.? You will hear signals on
both sides of?the BFO, not just one side as you do with the filter in place.

Try it, just tack a wire from one side of the filter to the other,
from header CW-1 pin 1 to header CW-2 pin 1 in the uBitx v6 schematic.
Could be educational.
Could even be useful, allowing one to quickly tune across the band when looking for signals.

Bypassing the SSB filter when transmitting would create an illegal wideband transmission
on the HF bands.

Jerry, KE7ER



On Wed, Nov 11, 2020 at 11:53 AM, "Rafael Diniz" <rafael@...> wrote:
Hi everybody,

I bought two ubitx v6, and now I'm waiting them to arrive. One question
about wideband operation - if I bypass the SSB filter, could I get a
clean 15kHz wide operation?

Thanks,
Rafael PU2UIT
 

Might work on FM (?) since FM Broadcast requires greater bandwidth. Have to get tricky in other ways too, though.

I had a Yaesu FT-100 and while it would receive in the FM broadcast band, the stations only came through with certain tones when the station's audio was in the passband of the receiver's filter. One of the reasons I traded it off.

Bob ¡ª KK5R

On Wednesday, November 11, 2020, 8:18:02 PM EST, Jerry Gaffke via groups.io <jgaffke@...> wrote:


Rafael,

Bypassing the SSB filter would make the receiver be wideband,
but you would lose single signal reception.? You will hear signals on
both sides of?the BFO, not just one side as you do with the filter in place.

Try it, just tack a wire from one side of the filter to the other,
from header CW-1 pin 1 to header CW-2 pin 1 in the uBitx v6 schematic.
Could be educational.
Could even be useful, allowing one to quickly tune across the band when looking for signals.

Bypassing the SSB filter when transmitting would create an illegal wideband transmission
on the HF bands.

Jerry, KE7ER



On Wed, Nov 11, 2020 at 11:53 AM, "Rafael Diniz" <rafael@...> wrote:
Hi everybody,

I bought two ubitx v6, and now I'm waiting them to arrive. One question
about wideband operation - if I bypass the SSB filter, could I get a
clean 15kHz wide operation?

Thanks,
Rafael PU2UIT
 

Thanks Jerry,

Concerning the tx, we are not working on HF ham bands. We'll use an
experimental license (if it works ok without the SSB filter), in order
to carry the HF wide-band experiment.

Rafael

On 11/11/20 10:17 PM, Jerry Gaffke via groups.io wrote:
Rafael,

Bypassing the SSB filter would make the receiver be wideband,
but you would lose single signal reception.? You will hear signals on
both sides of?the BFO, not just one side as you do with the filter in
place.

Try it, just tack a wire from one side of the filter to the other,
from header CW-1 pin 1 to header CW-2 pin 1 in the uBitx v6 schematic.
Could be educational.
Could even be useful, allowing one to quickly tune across the band
when looking for signals.

Bypassing the SSB filter when transmitting would create an illegal
wideband transmission
on the HF bands.

Jerry, KE7ER



On Wed, Nov 11, 2020 at 11:53 AM, "Rafael Diniz"
<rafael@...> wrote:

Hi everybody,

I bought two ubitx v6, and now I'm waiting them to arrive. One
question
about wideband operation - if I bypass the SSB filter, could I get a
clean 15kHz wide operation?

Thanks,
Rafael PU2UIT
Rafael Diniz
 

Thanks Jerry,

Concerning the tx, we are not working on ham bands. We'll use an
experimental license (if it works ok without the SSB filter), in order
to carry the wideband experiments.

Rafael

On 11/11/20 10:17 PM, Jerry Gaffke via groups.io wrote:
Rafael,

Bypassing the SSB filter would make the receiver be wideband,
but you would lose single signal reception.? You will hear signals on
both sides of?the BFO, not just one side as you do with the filter in
place.

Try it, just tack a wire from one side of the filter to the other,
from header CW-1 pin 1 to header CW-2 pin 1 in the uBitx v6 schematic.
Could be educational.
Could even be useful, allowing one to quickly tune across the band
when looking for signals.

Bypassing the SSB filter when transmitting would create an illegal
wideband transmission
on the HF bands.

Jerry, KE7ER



On Wed, Nov 11, 2020 at 11:53 AM, "Rafael Diniz"
<rafael@...> wrote:

Hi everybody,

I bought two ubitx v6, and now I'm waiting them to arrive. One
question
about wideband operation - if I bypass the SSB filter, could I get a
clean 15kHz wide operation?

Thanks,
Rafael PU2UIT
IW4AJR Loris
 

Hello Rafael,

what kind of "experimental license" do you have?
to work in the frequency bands assigned to the "Radio Amateur Service" (see the ITU assignments) it is "ESSENTIAL" to have a Radio Amateur license and, due to agreements made by IARU with almost all the National Institutions for Communications (see for example here in Italy with the Ministry of Infrastructure), the compliance with the subdivision by type of use (CW, SSB, Digital, etc.) and the respective maximum bandwidth allowed is a legal obligation!
I fervently hope that your experiments are not oriented to occupy the HF with telephone or other "private" digital communication networks, private communications are already "eating" us the UHF and the SHF to allow the allocation of digital networks of nature certainly not experimental.
I do not think that radio amateurs around the world ask for the impossible, but only to be left in peace to enjoy their QSO and their experiments, without being "victims" of commercial purposes that certainly do not care about " human right to happiness "!
Tell us what experiments you want to do!
Greetings IW4AJR Loris "HONOR ROLE" ARI (Italian Radio Association).
 

Loris,

He has stated that they are not in ham bands earlier.

Raj

At 21/11/2020, you wrote:
Hello Rafael,

what kind of "experimental license" do you have?
to work in the frequency bands assigned to the "Radio Amateur Service" (see the ITU assignments) it is "ESSENTIAL" to have a Radio Amateur license and, due to agreements made by IARU with almost all the National Institutions for Communications (see for example here in Italy with the Ministry of Infrastructure), the compliance with the subdivision by type of use (CW, SSB, Digital, etc.) and the respective maximum bandwidth allowed is a legal obligation!
I fervently hope that your experiments are not oriented to occupy the HF with telephone or other "private" digital communication networks, private communications are already "eating" us the UHF and the SHF to allow the allocation of digital networks of nature certainly not experimental.
I do not think that radio amateurs around the world ask for the impossible, but only to be left in peace to enjoy their QSO and their experiments, without being "victims" of commercial purposes that certainly do not care about " human right to happiness "!
Tell us what experiments you want to do!
Greetings IW4AJR Loris "HONOR ROLE" ARI (Italian Radio Association).
IW4AJR Loris
 

Hello Raj

It doesn't matter which bands he wants to experiment on, even in SHF they never experimented on 3.4 GHz ... but now we're losing the band all over the world! ... private interests go in the diametrically opposite direction to "man's individual happiness" as Kennedy said "gross domestic product can measure anything but not human happiness"!
that is why I would be curious to know what "experiments" our "friend" is conducting!
?
73 de IW4AJR Loris
 

Before uBitx GDP was a good proxy for happiness.


Il sab 21 nov 2020 12:44 PM IW4AJR Loris <lorisbollina@...> ha scritto:
Hello Raj

It doesn't matter which bands he wants to experiment on, even in SHF they never experimented on 3.4 GHz ... but now we're losing the band all over the world! ... private interests go in the diametrically opposite direction to "man's individual happiness" as Kennedy said "gross domestic product can measure anything but not human happiness"!
that is why I would be curious to know what "experiments" our "friend" is conducting!
?
73 de IW4AJR Loris

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