40 meter wire antennas

notes:

Co-linear/Phased

http://www.w6kan.com/k3mrg2.html

http://iacantennas.com/docs/Double-Bazooka-Phased-Array.pdf

http://www.sage-american.com/SK/cebik/a10/scv/bc40ab.html

http://ac0c.com/attachments/40m_parasitic_to_phased.pdf

https://www.google.com/search?q=40+meter+phased+dipoles&biw=1257&bih=658&tbm=isch&imgil=rGEgDAl-KBysDM%253A%253BVUcAu-I7Qdz3GM%253Bhttps%25253A%25252F%25252Fwww.qrz.com%25252Fdb%25252FN4JTE&source=iu&pf=m&fir=rGEgDAl-KBysDM%253A%252CVUcAu-I7Qdz3GM%252C_&dpr=2&usg=__WbOZHa3k5CGZMaXOPLJqyh9Hbl8%3D&ved=0CE4QyjdqFQoTCJ_Bw5uX2cYCFfAg2wodRDwMww&ei=Ez-kVd_rBPDB7AbE-LCYDA#imgrc=o5hQonjWNGW-iM%3A&usg=__WbOZHa3k5CGZMaXOPLJqyh9Hbl8%3D

Moxon

http://www.iw5edi.com/wp-content/uploads/2013/06/40-Meter-Mini-MOXON-Beam-Antenna.pdf

http://www.moxonantennaproject.com/IK0GDH/IK0GDH.htm

http://www.moxonantennaproject.com/w1zymoxon.htm

http://www.optibeam.info/index.php?article_id=85&clang=1

Quad/loop

http://n4jte.blogspot.com/2006/10/2-element-40-meter-reversable-quad.html

http://www.hamuniverse.com/na4lquagibeam.html

https://www.google.com/search?q=40+meter+quad&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwj3hvGkro3NAhUF6x4KHVOyBLkQsAQIKQ&biw=1217&bih=628#imgrc=5Tm4dnnwCVss5M%3A

http://www.seed-solutions.com/gregordy/Amateur%20Radio/Experimentation/40%20Meter%20Delta%20Loop%20Array.htm

Yagi/dipole

https://www.dxengineering.com/parts/csh-d4

http://www.jkantennas.com/jk403.html

http://www.rssl.lk/40-meters-3-element-wire-yagi-by-ve3vn/

http://amfone.net/Amforum/index.php?topic=19385.0

http://lists.contesting.com/_towertalk/1997-12/msg00178.html

http://ve3vn.blogspot.it/2014/05/40-meters-3-element-wire-yagi.html

http://ve3vn.blogspot.it/2014/12/40-meters-4-element-wire-yagi.html

http://lists.contesting.com/_towertalk/1998-05/msg00610.html

http://egpreston.com/40mbeam.txt

http://www.dxzone.com/catalog/Antennas/40M/40_meter_Yagi_Antennas/

(3-6-9) http://radio.n0gw.net/radio05.pdf

Other

http://n4jte.blogspot.com/

http://www.greenbookee.org/horizontal-40-meter-array/

SDR Panadpter, logger, and skimmer

With a TenTec Eagle transceiver, Managed by N4PY software.

n4py-diagram

http://www.n4py.com/

N4PY acts as router, distributing CAT commands to other applications.

The applications are connected using virtual serial port bridge pairs. For each of the applications, N4PY emulates a K3 transceiver on one side of the bridge.

  • Panadapter: NAP3
  • Logger: N1MM
  • CW Skimmer

The CW keyer is a K1EL Winkeyer USB controlled solely by the N1MM logger.

The routing of IQ signals from LP-PAN2 SDR is done through a MOTU 828 mk3 interface, simply to be able to split the signal so that both NAP3 and CW Skimmer can use it.

CW Skimmer gets the IQ signal directly from the MOTU. NAP3 doesn’t not recognize multiple ports on soundcards. So one end of the split from the MOTU is sent through another audio interface (Focusrite 2I2). NAP3 uses the 2I2 as an input device.

LP-PAN frequency adjustments

Notes on configuration for correct zero-beating.

When setting the Eagle BW or PBT, the IF will shift in frequency, so the numbers below assume a centered PBT and a BW of 700.

The sidetone pitch is 523 Hz.

Settings may also depend on which roofing filters are installed in the Eagle.

NAP3 settings

Set the global offset to -8200. Leave everything else at 0.

CW Skimmer settings
  • CW pitch: 523
  • Audio IF: -7520
  • Sample rate: 96 kHz
  • Hardware: SoftRock-IF

This post is about ham radio.

Soundjack

Low latency open-source VOIP system for music

By Alexander Carot

http://www.soundjack.eu/

Screen Shot 2016-04-07 at 2.41.33 AM

I have run Soundjack as a one-way system for sending audio from a shortwave radio over the internet. It has worked well with Windows 7 and Mac OS 10.x. The Windows version requires an ASIO audio interface.