Tag Archives: home made

Home made QRO 25 kW Linear Amplifier

Posted on 27 June, 2011 by admin

Big boys – Big Power. The 3CX15000A7 amplifier 3-23 MHz. 25 kW SSB output. Photo: w8ji LINK

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My home made project

Posted on 31 May, 2011 by admin

Seems that problem solved with second CAT for FT857d YAESU. See previous post. I’ve build a new CAT Interface for MixW and WIN-TEST (WT) applications. Everything working OK

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Russian Home Made transceiver – UW3DI

Posted on 11 May, 2011 by admin

Photo by UA3H Photo: Modified Russian home brew FULL QSK UW3DI-III HF Transceiver. The legendary and very famous HF transceiver was designed in the Soviet Union by Radio Amateur – Yuri Kudryavtsev (UW3DI) in 1968. The transceiver has been build … Continue reading →

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MKARS80 QRP 80m Transceiver kit

Posted on 10 March, 2011 by admin

The MAKRS80 is a QRP transceiver designed for use for use on the 80M band, the circuit was developed from the BITX20 designed by Ashhar Farhan. Although simple in design perceived performance is as good as a commercial transceiver. Main … Continue reading →

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Henry 2K-4 RF Amplifier QSK Modification

Posted on 9 March, 2011 by admin

by NE7X … To resolve this QSK problem I decided to replace the slower mechanical T/R relay in the Henry 2K-4 with high speed Gigavac model GH1-HAM (datasheet) 5KW RF 6ms 12VDC SPDT vacuum relays. Not only will this resolve … Continue reading →

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DH8BQA’s Single-Button-Voice-Keyer PIC Project

Posted on 8 March, 2011 by admin

# PCB size 75 x 49 mm up to our analog sequencer boards. # The entire control needs to be done by a small PIC 12F629/675, to save space on the board (the 12F series has only 8 pins, but … Continue reading →

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Home made Tx from 4L1G

Posted on 1 January, 2011 by admin

Source: QRZ.ru Forum

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Trident Pneumatic Tennis Ball Launcher for wire antennas

Posted on 28 December, 2010 by admin

WD6CMU wrote: Field Day 2003 was the testing ground for the third generation tennis ball launcher, dubbed “Trident”. Two legs and the apex of a 400′ vee beam were hoisted with three shots, a fourth shot was used to pull … Continue reading →

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