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July 2017 - Satellititis Continues

The next page in the evolving satellite antenna system has been written.  

Rev 3.0   moved the sorry homebuilt arrays built over the past few months into my attic, where it is hot, but dry, out of the jurisdiction of any building codes, and where the antennas are only 15 coaxial feet away from a room with the FT-847.  Lots of great ideas borrowed directly from N0JY's web page, and some from him as well.  At about 30 feet, both antennas do a decent job on distant repeaters and FM and SSB simplex as well.

The xyl has noted some vibration in the ceiling, work on that continues :)  But it works almost as well, if not as well, as outside, except perhaps after a day of driving rain.

 

Rev. 0      March 2017 6 and 8 element WA5VJB Cheap Yagis for 2 meters and 70 cms.

Rev 1.0   April 12, 2017 the 20 element homebrew circularly polarized 435 mhz antenna was finished - what a difference on the FO29 downlink.  Rev 1.0 was good enough to wrap up VUCC via LOTW in about 3 months.

 

Rev 2.0    June 3, 2017 finally built the 8 element circularly polarized 2 meter antenna from a couple junker Cushcraft fm antennas and some M Squared dimensions, noticeable improvement on receive and transmit. Still operating only outside though....,

 

 

2017 Update - The Year of the Homebrew Station

After, well, 47 years of this, I decided I wasn't a real radio guy if I didn't operate a completely homebrew station at least part of the time.

To that end, I built the W7ZOI Progressive Receiver on the right hand side of the station below, and if I've worked you this year, there is a good chance I was listening to you on it.

The lower unit is the 80 meter receiver with a dreamy retro Eddystone 898 dial and 250 hertz, 2.1 kilohertz and 5 kilohertz filters at 9 mhz.  Thanks very much to David, a real amateur and gentleman in GM, that fixed me up with that very hard to find dial drive. 

The top rack holds a general coverage receiving converter using a 10 year old Norcal DDS for the first mixer oscillator, a homebrew continuous tuning preselector, 2N5109 post amp, and W7ZOI mixer, and the rack also includes a 7 watt audio amp and VU meter for room shattering volume from the headphone-only ZOI.  Internal converters for 40 through 17 are under construction, but the DDS front end got me on the air much faster.

The box to the right of the W7 wattmeter is a 6 watt out VXO controlled 20 meter cw rig I first built in the 80's but didn't make work right until this year.  Age and treachery over youth and skill and all that. 

So as of Ground Hog Day 2017 I'm on all homebrew with 6 watts on 20 cw.  A hexfet amp for that rig, and a 75 watt all-band novice-style 1625 final amp cw rig are in the works.  By summer I hope to be QRV with close to 100 homebrew watts and the W7ZOI receiver on 80, 40, 30, 20 and 17. 

2016 and before......

 

  

This is why I hate winter.................despite getting 4th place in an ARRL photo contest for this shot.  The T6 had been up two weeks before catching a 3 inch ice coating.  A little sun fixed it, and I have nothing but the highest regard for Tennadyne antennas. 

But I moved in 2007, and have moved on to a more neighborhood-friendly recycled DX Engineering hex beam mounted on an old, old Wilson tubular tower installed inside a two story garage, with about 15 feet of spinning mast sticking out through the garage roof.  An odd sight.  And  I do miss the T6.  But it's great having a rotator on the ground, inside the garage, especially in winter.

Also licensed as ZF2SC since 2000, and operated December 2012 as J6/KA9P. 

Cards for all operations received direct get a direct reply, bureau cards are answered within about a month after receipt from the bureau, and all ops are currently logged in LOTW.  If you think you QSL'd and did not receive a response, please email me at ka9p@aol.com and I can check.

Interests are vacuum tube equipment, early solid state amateur and commercial/military receivers from Collins, Drake and Watkins Johnson, and diversity reception, made a whole lot easier by the recent acquisition of a gently used K3.

I'm sometimes on using a restored R1155  Lancaster bomber receiver I pieced together from boot sale junkers dragged back from UK work trips, and am beginning work on the R1155's mate T1154 tranmitter.

Operations during this part of the sunspot cycle primarily are 80/40/20/17 CW, and HF Pack style operations, typically cw, with a KX1 or KX3, and Buddipole beams or verticals.

Active since 1969 as WN9BCR and WB9BCR from Crestwood, Illinois.

Member ARRL, RSGB, AMSAT, SKCC 14095, FISTS 17568, CWOPS 1698, and QRPARCI 16155.

 

8281958 Last modified: 2017-08-19 15:52:24, 8748 bytes

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