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Usually use homebrew rig, built for 30 meters. Rx is a direct conversion phasing rig designed by Rick Campbell, KK7B, and modified by me to work on 30M. Tx and VFO that drives both the Rx and Tx in transcieve mode is my own concoction. The keyer is an AccuKeyer, from an ancient QST article that's been modified to fix some perceived glitches in the original design. Now, the on air mistakes are mostly due to my own incompetence. The amp I use for this band is a homebrewed motorola design (AN-762) that uses a pair of MRF 421's.

My favorite way to operate is to go camping and use a full size dipole hung in pine trees at about 100 feet in the Chattahoochee National forest about 75 miles north of my QTH. I get them at that altitude using a spud gun I built from a QST article. When operating from the home QTH the antenna is a hamstick dipole (30M) at about 20 or 30 feet hung on an MFJ fibre glass pole stuck out the back door. Seems to work with 200watts about as well as 9 watts at 100 feet in the forest ! I've added an MFJ power supply.. tweaked up the voltage to get 200 W on 30 M.

Other rigs... Yaesu FT DX 1200 and Kenwood TS-820S, RadShak HTX-100 10M rig, Heath HW-2036 2M rig, and some 2m handy talkies.  Several hamstick antennas, and several dipoles.

Recently bought a Honda 1KW generator. Nice 'n quiet. Runs forever on a fart. Should have done that a long time ago. Beats toting 2 X115 amphour batts to the forest ! I now get 200W out instead of 160W and get to operate the TS 820 again. When I operate 30 meters, using the homebrew rig, I can hear the CW modulate the engine noise !

Several have asked for a pix of my homebrew station to be posted on QRZ. Well here it is. Including the "preacher" filters I occaisionally have to use when camping in the Chattahoochee National Forest. (I get a lot of AM preacher broadcasts up there that get into my direct conversion Rx.  --Don't know if they are legal or bootleggers... but anyway my filters get rid of them.) The filters are the ugly brown/copper colored boxes that go inline with the RX. I have one for 100 khz bandwidth and another for 200 khz bandwidth. They can be connected in series if need be.. (extremely effective against preachers). The preamp in the grey box to the right, is needed to overcome the losses sometimes... particularly if I have to use both filters in series.

By the way... the spice box on top encloses a 25khz marker generator... Had to use it until I finally got the frequency counter display... but still use it to adjust the phasing and amplitude of the phasing type direct conversion RX.

73's if you have managed to read this far.

Roger

6584204 Last modified: 2015-07-22 15:18:31, 2763 bytes

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QRZ Logbook Summary for - KO5Q
Latest Contacts for KO5Q at QRZ.com
dedateband mode grid Country op
KJ4QFV 2014-09-29 40m CW EM95qe United States JOSEPH M DUCAR
PY4EP 2014-09-20 15m CW GG78gk Brazil PHILEMON MOREIRA RAMOS - " PHIL "
KB9GFX 2014-07-03 30m CW EN64al United States Dennis J Knutson
KT4NN 2014-04-01 40m CW EM90bc United States PETER SORENSEN
PY4TW 2014-03-22 15m CW GH93oi Brazil JO�O RICARDO BERGAMINI
YO9CEB 2014-03-08 30m CW KN24sp Romania Niculae Ion
W8TY 2014-02-24 30m CW EN70vs United States Jon E Solomon
AF4K 2014-02-15 30m CW EL98is United States BRIAN J CARLING
N8ZYA 2014-02-13 30m CW EM98ei United States John W Smithson, Jr
N4NBM 2014-01-04 30m CW EL98iq United States Alan T Best
KD8QBF 2014-01-04 30m CW EN72qr United States Daniel H Cameron
NZ4D 2013-12-22 30m CW FM15gn United States Michael A Kelly
W5CYF 2013-12-21 40m CW EM22jf United States John
KD0FLD 2013-11-10 10m SSB DN70pk United States Terry L Tilton
IZ1XBB 2013-10-20 30m CW JN44kv Italy Pier Paolo Liuzzo

Book Totals: 106 qso's   95 confirmed Get a free logbook at QRZ.COM


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