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Re: Binaural CW Filter?
Dave,
I may be proven wrong, but I don't think filters on two different frequencies will give the same effect.
SDR receivers are based on the 90 degrees out of phase signals derived from a quadrature
Dave,
I may be proven wrong, but I don't think filters on two different frequencies will give the same effect.
SDR receivers are based on the 90 degrees out of phase signals derived from a quadrature
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By
Don Wilhelm
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#12477
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Binaural CW Filter?
Some years ago Rick Campbell wrote an excellent article for QST describing a 'Binaural Receiver'
Some years ago Rick Campbell wrote an excellent article for QST describing a 'Binaural Receiver'
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By
david cripe <ai9e_qrp@...>
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#12476
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NEED Please
I need a set of FOUR 100k or higher 2 watt or larger leaded resistors.
Does anyone have some to spare?
Please respond direct.
Have a great day,
--... ...-- Dale - WC7S in Wy
"Actions speak louder
I need a set of FOUR 100k or higher 2 watt or larger leaded resistors.
Does anyone have some to spare?
Please respond direct.
Have a great day,
--... ...-- Dale - WC7S in Wy
"Actions speak louder
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By
Dale Putnam
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#12475
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RMRC cw net 14.0625 now 2200z
c u there
Have a great day,
--... ...-- Dale - WC7S in Wy
"Actions speak louder than words"
1856 - Abraham Lincoln
c u there
Have a great day,
--... ...-- Dale - WC7S in Wy
"Actions speak louder than words"
1856 - Abraham Lincoln
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By
Dale Putnam
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#12474
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Re: tomorrow evenings 40m nets
Ill be key side for all three. de Paul N0NBD
Sent from Outlook
Ill be key side for all three. de Paul N0NBD
Sent from Outlook
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By
Paul Smith
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#12473
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Re: tomorrow evenings 40m nets
Wayne, is that on 7122 tomorrow evening?
73 - Bob, K6KL
Wayne, is that on 7122 tomorrow evening?
73 - Bob, K6KL
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By
Bob Nelson
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#12472
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tomorrow evenings 40m nets
Good afternoon all,
Just a quick heads-up, I will call 2 nets tomorrow evening, one at 00:00z and another at 00:30z, just to see if conditions differ appreciably. also, if the connectors arrive in
Good afternoon all,
Just a quick heads-up, I will call 2 nets tomorrow evening, one at 00:00z and another at 00:30z, just to see if conditions differ appreciably. also, if the connectors arrive in
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By
Wayne Dillon
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#12471
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Wanted QRPometer
I would like to find a QRPometer for a good friend of mine. If anyone has one that is already built that you would sell please contact me at rolph981@.... If you have one that is in still in kit form
I would like to find a QRPometer for a good friend of mine. If anyone has one that is already built that you would sell please contact me at rolph981@.... If you have one that is in still in kit form
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By
bobby rolph
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#12470
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Re: Ground Clamp Question
Tim
They make copper plated or brass ground clamps
Just for this purpose.
Try Home Depot, or lowes?
If you have a electrical supply company close by
Go in and ask for ground clamps.
Under 10$
Hose
Tim
They make copper plated or brass ground clamps
Just for this purpose.
Try Home Depot, or lowes?
If you have a electrical supply company close by
Go in and ask for ground clamps.
Under 10$
Hose
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By
Johnny AC0BQ
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#12469
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Re: Ground Clamp Question
I think I will do this plus the stainless hose clamps as Don suggested.
I don't lay awake at night worrying about too many things!
The tower guy used anti-seize between the sections but just the
I think I will do this plus the stainless hose clamps as Don suggested.
I don't lay awake at night worrying about too many things!
The tower guy used anti-seize between the sections but just the
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By
Tim N9PUZ
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#12468
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Re: Ground Clamp Question
It may take the copper to galvanized months to cause damage, but the resistance of the connection will start to rise immediately. Cut a small piece of stainless and place it between the copper and
It may take the copper to galvanized months to cause damage, but the resistance of the connection will start to rise immediately. Cut a small piece of stainless and place it between the copper and
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By
Ken Talbott
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#12467
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Re: Ground Clamp Question
You should be able to pick up a tube/bottle of Noalox by Ideal at Home
Depot or other home improvement store. It's a greasy compound made for
clamping aluminum and copper. I do think it will also do
You should be able to pick up a tube/bottle of Noalox by Ideal at Home
Depot or other home improvement store. It's a greasy compound made for
clamping aluminum and copper. I do think it will also do
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By
Nate Bargmann
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#12465
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Re: Ground Clamp Question
Tim,
I have bought stainless steel hose clamps from Home Depot, Lowes, hardware stores, and automotive supply places. Look around locally.
Some do not have SS adjustment screws, but many have SS
Tim,
I have bought stainless steel hose clamps from Home Depot, Lowes, hardware stores, and automotive supply places. Look around locally.
Some do not have SS adjustment screws, but many have SS
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By
Don Wilhelm
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#12466
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Ground Clamp Question
So, I'm wanting to add an additional HF antenna here. Id like to go part way up my tower and run an end fed wire from a Unun to a tree. I'm thinking of mounting the unun on a tower leg and attaching
So, I'm wanting to add an additional HF antenna here. Id like to go part way up my tower and run an end fed wire from a Unun to a tree. I'm thinking of mounting the unun on a tower leg and attaching
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By
Tim N9PUZ
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#12464
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Re: where to low cost 60m band crystals and other stuff
You might try Dennis G6YBC at Kanga UK. Dennis has a wide selection of 60m crystals. http://www.kanga-products.co.uk/ Unfortunately the Kanga website is not fully up and running just yet. I'm sure an
You might try Dennis G6YBC at Kanga UK. Dennis has a wide selection of 60m crystals. http://www.kanga-products.co.uk/ Unfortunately the Kanga website is not fully up and running just yet. I'm sure an
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By
Colin Evans
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#12463
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Re: where to low cost 60m band crystals and other stuff
Try Rich at ESS on the web?
Johnny AC0BQ
--
QRP....."More smiles per Watt"
72
JOHNNY AC0BQ ..
Try Rich at ESS on the web?
Johnny AC0BQ
--
QRP....."More smiles per Watt"
72
JOHNNY AC0BQ ..
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By
Johnny AC0BQ
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#12462
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Re: where to low cost 60m band crystals and other stuff
G-QRP has been selling some 60m channel crystals recently. Expanded Spectrum Systems has 18.096.
73
Greg
________________________________________
Sent: Monday, October 31, 2016 11:16 AM
To:
G-QRP has been selling some 60m channel crystals recently. Expanded Spectrum Systems has 18.096.
73
Greg
________________________________________
Sent: Monday, October 31, 2016 11:16 AM
To:
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By
Greg W
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#12461
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where to low cost 60m band crystals and other stuff
Hi all
<short version>
I was wondering if anybody knows of a place to order crystals for 17m and 60m preferrably near the qrpme prices.
I recently finished 0 to 25W transmitter vxo based and included
Hi all
<short version>
I was wondering if anybody knows of a place to order crystals for 17m and 60m preferrably near the qrpme prices.
I recently finished 0 to 25W transmitter vxo based and included
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By
Fernan Bolando
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#12460
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Re: Good Morning Lil Ol World!
2 BAD TRACES FROM THE I.C. TO VOL KNOB AND TO A RESISTOR.IM STILL BAFFLED.
2 BAD TRACES FROM THE I.C. TO VOL KNOB AND TO A RESISTOR.IM STILL BAFFLED.
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By
. <firebird1957@...>
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#12459
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Re: Good Morning Lil Ol World!
Please hang in there as help can be found. Bad traces? You will have to be a bit more specific for knowledgable folk to help. Lets pause to not add do any damage while this is sorted out.
Curt
Please hang in there as help can be found. Bad traces? You will have to be a bit more specific for knowledgable folk to help. Lets pause to not add do any damage while this is sorted out.
Curt
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By
Curt
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#12458
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