But some of us have filters.
Andy GD1MIP
|
What good would it do to have the board if the filters are no longer available ?
Rick KC8AON
|
Thanks all, I'll write an email and see what happens.
Andy GD1MIP
|
I have some blank boards.? I'd be willing to photograph one, provided someone can point to a way to get permission to copy it from the original designer.? I've no desire to get involved in a dispute over rights.
Vy73 -- Mike -- DL/KD5KC
Rhon Mountains
Strahlungen Germany
On Tue, Jun 18, 2019 at 7:13 AM -0600, "gd1mip@... [FT817]" <FT817@...> wrote:
Now that W4RT has ceased trading, has anyone tried to copy / replicate the PCB?
Or if you have an unused board would you be willing to make the appropriate images so one could be made?
Thanks Andy GD1MIP
------------------------------------
Posted by: gd1mip@...
------------------------------------
And for a great FAQ ( Frequently Asked Questions ) see http://groups.yahoo.com/group/FT817/database
Some really good technical info at: http://www.ka7oei.com/ft817pg.shtml .
Please note that your messages and files sent to this group may appear anywhere on the Internet or in print without notice or compensation.
------------------------------------
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|
There should definitely be a resolution of the board's copyright
before simply copying it.
According to QRZ.com, W4RT is a club call.? Start there...
Greg? KO6TH
'Eric van de Weyer' evdw@...
[FT817] wrote:
toggle quoted message
Show quoted text
?
Hi Andy,
?
I would suggest that, if W4RT
is not SK, then he should be approached and asked for
permission to replicate his board or, failing that his
family should be asked for the permission.
?
He may be willing to provide
the layout of the board to a successor to manufacture
which would simplify the process.
?
?
From: FT817@...
Sent: Tuesday, 18 June 2019 23:13
To: FT817@...
Subject: [FT817] W4RT Dual filter PCB
?
?
Now that W4RT has ceased trading, has anyone
tried to copy / replicate the PCB?
Or if you have an unused board would you be
willing to make the appropriate images so one
could be made?
Thanks Andy GD1MIP
|
Hi Andy, ? I would suggest that, if W4RT is not SK, then he should be approached and asked for permission to replicate his board or, failing that his family should be asked for the permission. ? He may be willing to provide the layout of the board to a successor to manufacture which would simplify the process. ? ?
toggle quoted message
Show quoted text
From: FT817@...
Sent: Tuesday, 18 June 2019 23:13
To: FT817@...
Subject: [FT817] W4RT Dual filter PCB? ? Now that W4RT has ceased trading, has anyone tried to copy / replicate the PCB?
Or if you have an unused board would you be willing to make the appropriate images so one could be made?
Thanks Andy GD1MIP
|
Now that W4RT has ceased trading, has anyone tried to copy / replicate the PCB?
Or if you have an unused board would you be willing to make the appropriate images so one could be made?
Thanks Andy GD1MIP
|
Hi all
I buy both Collins filters some years ago and I found on web that there is another way to have both Collins filters installed without any pcb.
I did this simple wire installation and it's working
73 mike i3mdu
|
P.S. Linear Technology and Texas Instruments for audio filter ICs as well. One can also homebrew multipole as many orders as needed as Chebyshev, Butterworth, etc. with op amps.
Joe
On Monday, June 17, 2019 Joseph Wonoski N1KHB <FT817@...> wrote:
?
Are we talking about IF or audio filters? Are Murata filters a candidate?? It seems to me that National Semiconductor made an IC audio filter left to the user for setting characteristics with passives.
Joe
N1khb
On Monday, June 17, 2019 rmckee1957 <FT817@...> wrote:
?
Been thinking of getting the Sotabeam filt for my 817, anyone here use one ?? How well does it work ?
Rick KC8AON
---In FT817@..., wrote : There is another filter option that doesn't get mentioned often:??
As I understand it, this is an AF not IF filter that is extremely
effective.? Like any other internal modification to your radio, you need
to be comfortable with a fine-tip soldering iron and be willing to void
your (mostly worthless) warranty.
For those in the US, DX Engineering resells almost all of the SotaBeams products.
Disclaimers:?
I have a business relationship with SotaBeams and can stand behind the
quality of their business.? I am not being compensated for this
comment.? I have not used this filter but would be seriously considering
it myself if I had a radio that needed a filter.? It might not work
with a FT-818 - I don't believe anyone has tested it yet.
jon N0WL
|
Are we talking about IF or audio filters? Are Murata filters a candidate?? It seems to me that National Semiconductor made an IC audio filter left to the user for setting characteristics with passives.
Joe
N1khb
On Monday, June 17, 2019 rmckee1957 <FT817@...> wrote:
?
Been thinking of getting the Sotabeam filt for my 817, anyone here use one ?? How well does it work ?
Rick KC8AON
---In FT817@..., wrote : There is another filter option that doesn't get mentioned often:??
As I understand it, this is an AF not IF filter that is extremely
effective.? Like any other internal modification to your radio, you need
to be comfortable with a fine-tip soldering iron and be willing to void
your (mostly worthless) warranty.
For those in the US, DX Engineering resells almost all of the SotaBeams products.
Disclaimers:?
I have a business relationship with SotaBeams and can stand behind the
quality of their business.? I am not being compensated for this
comment.? I have not used this filter but would be seriously considering
it myself if I had a radio that needed a filter.? It might not work
with a FT-818 - I don't believe anyone has tested it yet.
jon N0WL
|
I have an ND with the sotabeams filter, it is installed so a Collins filter can be run parallel with it and I find it very comparable to the Collins on CW. The slopes of the filters must be similar because to my ear they have almost the same sound.
Depending on your use case it may be a good option.
The Sotabeams is always in-line either using the wide or narrow setting. And since it is a dsp audio filter it is always in series with the stock ceramic filter on receive.
Ultimate rejection of closed space signals probably would still be a good case for the Collins filters but for just general use I think the sotabeams is very usable.
The only interest I have in any of the equipment is as an owner but I do have an 817nd on QRZ for sale with the sotabeams filter installed right now.
73 KV4TT- Mike
|
Hi all:
Another option as an audio DSP unit is the Funtronics ADSP filter:
It receives mixed reviews on eham.net, I have one, and must say that, on SSB, it works pretty well; on CW, it is finicky, but usable. Still no match for my TS590S, though!
Stephen KI9S
On Monday, June 17, 2019, 3:30:50 PM EDT, jonpoland@... [FT817] wrote:
?
There is another filter option that doesn't get mentioned often:?
?
As I understand it, this is an AF not IF filter that is extremely
effective.? Like any other internal modification to your radio, you need
to be comfortable with a fine-tip soldering iron and be willing to void
your (mostly worthless) warranty.
For those in the US, DX Engineering resells almost all of the SotaBeams products.
Disclaimers:?
I have a business relationship with SotaBeams and can stand behind the
quality of their business.? I am not being compensated for this
comment.? I have not used this filter but would be seriously considering
it myself if I had a radio that needed a filter.? It might not work
with a FT-818 - I don't believe anyone has tested it yet.
jon N0WL
|
Been thinking of getting the Sotabeam filt for my 817, anyone here use one ?? How well does it work ?
Rick KC8AON
---In FT817@..., <jonpoland@...> wrote : There is another filter option that doesn't get mentioned often:??
As I understand it, this is an AF not IF filter that is extremely
effective.? Like any other internal modification to your radio, you need
to be comfortable with a fine-tip soldering iron and be willing to void
your (mostly worthless) warranty.
For those in the US, DX Engineering resells almost all of the SotaBeams products.
Disclaimers:?
I have a business relationship with SotaBeams and can stand behind the
quality of their business.? I am not being compensated for this
comment.? I have not used this filter but would be seriously considering
it myself if I had a radio that needed a filter.? It might not work
with a FT-818 - I don't believe anyone has tested it yet.
jon N0WL
|
There is another filter option that doesn't get mentioned often:?
?
As I understand it, this is an AF not IF filter that is extremely
effective.? Like any other internal modification to your radio, you need
to be comfortable with a fine-tip soldering iron and be willing to void
your (mostly worthless) warranty.
For those in the US, DX Engineering resells almost all of the SotaBeams products.
Disclaimers:?
I have a business relationship with SotaBeams and can stand behind the
quality of their business.? I am not being compensated for this
comment.? I have not used this filter but would be seriously considering
it myself if I had a radio that needed a filter.? It might not work
with a FT-818 - I don't believe anyone has tested it yet.
jon N0WL
|
You're totally correct.? W4RT closed their doors over a year ago.? They sold off all the filter kits, then offered up the bare boards last.? I bought up a few for "FUTURE NEEDS".? AFAIKT, nothing more is available from W4RT.
I have installed the dual-filter kit in two FT-817NDs, and one ICOM IC-703+.? I luv em, and now my German nephew is begging me to a a bare board.? He did his first SOTA activation, and fell in love with the Collins SSB filter, but he also sees the need for the CW filter.? Like me, he wants both.
Vy73 -- Mike -- DL/KD5KC
Rhon Mountains
Strahlungen Germany
On Thu, Jun 13, 2019 at 6:04 PM -0600, "john bucsek pwyll99@... [FT817]" <FT817@...> wrote:
For the most part the filters are all made by Collins (and are no longer in production), so all the options go back to the same basic filter.? The various retailers mount the filter on a board suitable for your rig. For me, inrad has been a good source when I couldn't find a used filter on ebay. I dont think W4RT is still in business (correct me of I'm wrong) and they were the one who made the board that let you use 2 filters on the 817.
Hope that helped.
John - KE7WNB?
|
For the most part the filters are all made by Collins (and are no longer in production), so all the options go back to the same basic filter.? The various retailers mount the filter on a board suitable for your rig. For me, inrad has been a good source when I couldn't find a used filter on ebay. I dont think W4RT is still in business (correct me of I'm wrong) and they were the one who made the board that let you use 2 filters on the 817.
Hope that helped.
John - KE7WNB?
|
Brian,
I forgot to ask...Have you tried listening on the AM or FM broadcast band?? With an antenna connected you should hear those bands fairly well.? You have to enable the AM/FM dial in Menu item 04.
Al
WB9UVJ
|
Does anyone know if the kits, if they were available would work with the FT818? I¡¯ve found a couple on the secondary market¡
Thanks, Dan
--Daniel Holmes,?danielh@..."Laugh while you can, monkey boy!" --?Lord John Whorfin
toggle quoted message
Show quoted text
I disagree 1000%.? I too have thousands of contacts from many US states and several European countries, and some pretty good DX too.??
For "CASUAL" CW operation on good bands, I more often than not operate CW with the SSB filter.? On a contest weekend, yeah, CW filter.
The stock Murata SSB filter sucks.? Several dB of roll-off on both ends, and terrible skirts.? The Collins SSB filter has been proven to increase talk power on SSB by 3 dB with proper adjustment of the upper and lower carrier injection points and mic gain.
If you are primarily an SSB operator, the Collins SSB filter is very much worth the improvements gained.
If you enjoy both modes, a difficult decision.? Having both filters is the best, but the kit is no longer available.? If you don't care about SSB, then the choice is easy.
Vy73 -- Mike -- DL/KD5KC.
Rhone Mountains
Strahlungen, Germany.
Watch for me from HB9 and HB0 next week.? B-10 field day this weekend.
On Thu, Jun 13, 2019 at 8:15 AM -0600, "John Leonardelli ?ve3ips@...?[FT817]" ?<FT817@...>?wrote: The 500 hz cw filter is a mandatory addition to this radio... The SSB filter is a bit close to the stock filter waveshape to probably not bother.
Thousands of contacts and I still love this radio John VE3IPS Note: Privileged/Confidential information may be contained in this message and may be subject to legal privilege. Access to this e-mail by anyone other than the intended is unauthorized. If you are not the intended recipient (or responsible for delivery of the message to such person), you may not use, copy, distribute or deliver to anyone this message (or any part of its contents ) or take any action in reliance on it. In such case, you should destroy this message, and notify us immediately.?
On Wed, Jun 12, 2019 at 10:56 PM < FT817@...> wrote:
Messages?Tue Jun?11,?2019 8:53?pm (PDT) . Posted by:Brian,?
Do you have a narrow filter in this radio? It is possible that you have
selected the narrow (CW) filter for all bands. That filter is normally only
500HZ wide or less if it is not a Yaesu filter. With the filter in, you
will hear very little normal band noise. Also, if you remove the antenna
while listening, the background noise should go down considerably when you
remove the antenna. Please double check the menu squelch/RF gain setting to
be sure. Background noise should rise and fall while you rotate the front
panel SQL/RF knob.
Al Skierkiewicz
Wed Jun?12,?2019 10:44?am (PDT) . Posted by:This is a link to see where you will most likely find the digital modes on HF. ???Also I would like to mention that I have noticed compared to other radios (my 991A in particular), my 817nd does not have the receive that other larger radios have. I have confirmed this just changing antennas between radios using various bands and daytime and nighttime. Digital works pretty great, especially FT8. Regards; Joseph KD4RXP EN42aw Iowa <> Virus-free. <> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Tue, Jun 11, 2019 at 7:23 AM Brian Wood ?gremlinscastle@...?[FT817] < FT817@...> wrote: > > > Thanks so much for the advice and encouragement. The good news I have > spent so much time fooling around with settings etc. that I have learned a > lot about the radio. I may have heard the FT8 tones as I have slowly gone > up and down the bands. I have also heard some voice signals with the ATAS > antenna but they were very weak. My biggest worry is that there is > something wrong with the radio as I bought it on EBay. Hopefully I will be > able to figure this out when I get together with a local club for field day. > Brian KB1RBK > > > > On Jun 10, 2019, at 6:22 PM, ?m6ssb73@...?[FT817] < > ?FT817@...> wrote: > > > > Hi again Brian, SSB signals are a bit sparse at the moment so I don¡¯t even > bother as I¡¯m antenna limited, but digital modes are alive and well - try > listening for FT8 signals on 20 metres at 17.074mhz ( sounds like musical > tones) during the day or 7.074 MHz after dark, I worked stations on 10 and > 12 metres using a short non resonant dipole on top of my fence at the > weekend, even heard stations from Brazil, USA, and Middle East. > Just remember that height above ground is important for a wire antenna but > HF signals are not badly affected by location unless you live in a city or > have a lot of man made noise, I live about 1/4 mile from a Motorway > (Freeway) and the HV power transmission lines and have very little noise at > around S1 to S3. > Now VHF and UHF that¡¯s a different story, trees, buildings hills etc will > greatly effect your signals for these modes it¡¯s a case of the higher the > better, plus the antenna needs good gain and efficiency - a cheap whip on a > mag mount just won¡¯t cut it, keep trying and don¡¯t give up others on this > group have already given good advice and will continue to do so, oh and by > the way if you¡¯ve got a buddy with a working station why not get him to try > the 817 on his antenna, at least it will prove that the rig is ok. > 73 de Paul - 2E0YOB > > ?> <> Virus-free. <> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> And for a great FAQ ( Frequently Asked Questions ) see?
Some really good technical info at:??.
Please note that your messages and files sent to this group may appear anywhere on the Internet or in print without notice or compensation.?
|
I disagree 1000%.? I too have thousands of contacts from many US states and several European countries, and some pretty good DX too.?
For "CASUAL" CW operation on good bands, I more often than not operate CW with the SSB filter.? On a contest weekend, yeah, CW filter.
The stock Murata SSB filter sucks.? Several dB of roll-off on both ends, and terrible skirts.? The Collins SSB filter has been proven to increase talk power on SSB by 3 dB with proper adjustment of the upper and lower carrier injection points and mic gain.
If you are primarily an SSB operator, the Collins SSB filter is very much worth the improvements gained.
If you enjoy both modes, a difficult decision.? Having both filters is the best, but the kit is no longer available.? If you don't care about SSB, then the choice is easy.
Vy73 -- Mike -- DL/KD5KC.
Rhone Mountains
Strahlungen, Germany.
Watch for me from HB9 and HB0 next week.? B-10 field day this weekend.
On Thu, Jun 13, 2019 at 8:15 AM -0600, "John Leonardelli ve3ips@... [FT817]" <FT817@...> wrote:
The 500 hz cw filter is a mandatory addition to this radio.. The SSB filter is a bit close to the stock filter waveshape to probably not bother.
Thousands of contacts and I still love this radio John VE3IPS Note: Privileged/Confidential information may be contained in this message and may be subject to legal privilege. Access to this e-mail by anyone other than the intended is unauthorized. If you are not the intended recipient (or responsible for delivery of the message to such person), you may not use, copy, distribute or deliver to anyone this message (or any part of its contents ) or take any action in reliance on it. In such case, you should destroy this message, and notify us immediately.?
On Wed, Jun 12, 2019 at 10:56 PM < FT817@...> wrote:
Messages
Tue Jun?11,?2019 8:53?pm (PDT) . Posted by:
Brian,
Do you have a narrow filter in this radio? It is possible that you have
selected the narrow (CW) filter for all bands. That filter is normally only
500HZ wide or less if it is not a Yaesu filter. With the filter in, you
will hear very little normal band noise. Also, if you remove the antenna
while listening, the background noise should go down considerably when you
remove the antenna. Please double check the menu squelch/RF gain setting to
be sure. Background noise should rise and fall while you rotate the front
panel SQL/RF knob.
Al Skierkiewicz
Wed Jun?12,?2019 10:44?am (PDT) . Posted by:
This is a link to see where you will most likely find the digital modes on
HF. Also I would like to mention
that I have noticed compared to other radios (my 991A in particular), my
817nd does not have the receive that other larger radios have. I have
confirmed this just changing antennas between radios using various bands
and daytime and nighttime. Digital works pretty great, especially FT8.
Regards; Joseph KD4RXP EN42aw Iowa
<>
Virus-free.
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
On Tue, Jun 11, 2019 at 7:23 AM Brian Wood gremlinscastle@... [FT817]
< FT817@...> wrote:
>
>
> Thanks so much for the advice and encouragement. The good news I have
> spent so much time fooling around with settings etc. that I have learned a
> lot about the radio. I may have heard the FT8 tones as I have slowly gone
> up and down the bands. I have also heard some voice signals with the ATAS
> antenna but they were very weak. My biggest worry is that there is
> something wrong with the radio as I bought it on EBay. Hopefully I will be
> able to figure this out when I get together with a local club for field day.
> Brian KB1RBK
>
>
>
> On Jun 10, 2019, at 6:22 PM, m6ssb73@... [FT817] <
> FT817@...> wrote:
>
>
>
> Hi again Brian, SSB signals are a bit sparse at the moment so I don¡¯t even
> bother as I¡¯m antenna limited, but digital modes are alive and well - try
> listening for FT8 signals on 20 metres at 17.074mhz ( sounds like musical
> tones) during the day or 7.074 MHz after dark, I worked stations on 10 and
> 12 metres using a short non resonant dipole on top of my fence at the
> weekend, even heard stations from Brazil, USA, and Middle East.
> Just remember that height above ground is important for a wire antenna but
> HF signals are not badly affected by location unless you live in a city or
> have a lot of man made noise, I live about 1/4 mile from a Motorway
> (Freeway) and the HV power transmission lines and have very little noise at
> around S1 to S3.
> Now VHF and UHF that¡¯s a different story, trees, buildings hills etc will
> greatly effect your signals for these modes it¡¯s a case of the higher the
> better, plus the antenna needs good gain and efficiency - a cheap whip on a
> mag mount just won¡¯t cut it, keep trying and don¡¯t give up others on this
> group have already given good advice and will continue to do so, oh and by
> the way if you¡¯ve got a buddy with a working station why not get him to try
> the 817 on his antenna, at least it will prove that the rig is ok.
> 73 de Paul - 2E0YOB
>
>
>
<>
Virus-free.
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
And for a great FAQ ( Frequently Asked Questions ) see
Some really good technical info at: .
Please note that your messages and files sent to this group may appear anywhere on the Internet or in print without notice or compensation.
|
I disagree 1000%.? For casual CW, THE
Vy73 -- Mike -- KD5KC
Strahlungen Germany
On Thu, Jun 13, 2019 at 8:15 AM -0600, "John Leonardelli ve3ips@... [FT817]" <FT817@...> wrote:
The 500 hz cw filter is a mandatory addition to this radio.. The SSB filter is a bit close to the stock filter waveshape to probably not bother.
Thousands of contacts and I still love this radio John VE3IPS Note: Privileged/Confidential information may be contained in this message and may be subject to legal privilege. Access to this e-mail by anyone other than the intended is unauthorized. If you are not the intended recipient (or responsible for delivery of the message to such person), you may not use, copy, distribute or deliver to anyone this message (or any part of its contents ) or take any action in reliance on it. In such case, you should destroy this message, and notify us immediately.?
On Wed, Jun 12, 2019 at 10:56 PM < FT817@...> wrote:
Messages
Tue Jun?11,?2019 8:53?pm (PDT) . Posted by:
Brian,
Do you have a narrow filter in this radio? It is possible that you have
selected the narrow (CW) filter for all bands. That filter is normally only
500HZ wide or less if it is not a Yaesu filter. With the filter in, you
will hear very little normal band noise. Also, if you remove the antenna
while listening, the background noise should go down considerably when you
remove the antenna. Please double check the menu squelch/RF gain setting to
be sure. Background noise should rise and fall while you rotate the front
panel SQL/RF knob.
Al Skierkiewicz
Wed Jun?12,?2019 10:44?am (PDT) . Posted by:
This is a link to see where you will most likely find the digital modes on
HF. Also I would like to mention
that I have noticed compared to other radios (my 991A in particular), my
817nd does not have the receive that other larger radios have. I have
confirmed this just changing antennas between radios using various bands
and daytime and nighttime. Digital works pretty great, especially FT8.
Regards; Joseph KD4RXP EN42aw Iowa
<>
Virus-free.
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
On Tue, Jun 11, 2019 at 7:23 AM Brian Wood gremlinscastle@... [FT817]
< FT817@...> wrote:
>
>
> Thanks so much for the advice and encouragement. The good news I have
> spent so much time fooling around with settings etc. that I have learned a
> lot about the radio. I may have heard the FT8 tones as I have slowly gone
> up and down the bands. I have also heard some voice signals with the ATAS
> antenna but they were very weak. My biggest worry is that there is
> something wrong with the radio as I bought it on EBay. Hopefully I will be
> able to figure this out when I get together with a local club for field day.
> Brian KB1RBK
>
> Sent from my iPad
>
> On Jun 10, 2019, at 6:22 PM, m6ssb73@... [FT817] <
> FT817@...> wrote:
>
>
>
> Hi again Brian, SSB signals are a bit sparse at the moment so I don¡¯t even
> bother as I¡¯m antenna limited, but digital modes are alive and well - try
> listening for FT8 signals on 20 metres at 17.074mhz ( sounds like musical
> tones) during the day or 7.074 MHz after dark, I worked stations on 10 and
> 12 metres using a short non resonant dipole on top of my fence at the
> weekend, even heard stations from Brazil, USA, and Middle East.
> Just remember that height above ground is important for a wire antenna but
> HF signals are not badly affected by location unless you live in a city or
> have a lot of man made noise, I live about 1/4 mile from a Motorway
> (Freeway) and the HV power transmission lines and have very little noise at
> around S1 to S3.
> Now VHF and UHF that¡¯s a different story, trees, buildings hills etc will
> greatly effect your signals for these modes it¡¯s a case of the higher the
> better, plus the antenna needs good gain and efficiency - a cheap whip on a
> mag mount just won¡¯t cut it, keep trying and don¡¯t give up others on this
> group have already given good advice and will continue to do so, oh and by
> the way if you¡¯ve got a buddy with a working station why not get him to try
> the 817 on his antenna, at least it will prove that the rig is ok.
> 73 de Paul - 2E0YOB
>
>
>
<>
Virus-free.
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
And for a great FAQ ( Frequently Asked Questions ) see
Some really good technical info at: .
Please note that your messages and files sent to this group may appear anywhere on the Internet or in print without notice or compensation.
|
Andy GD1MIP
Al WB9UVJ