Bitx40 ssb transceiver manual pdf

My enclosure design for the bitx40 reorients the volume and tuning knobs toward the sides of the radio, making their operation much more naturaland pleasant. The icom ic7100 is an affordable allmode hfvhfuhf mobile transceiver with a very high cool factor. There are raduino sketches created by others such as allard, pe1nwl, which add new features to the bitx40 just load them into the arduino nano on the raduino board. Assembly manual 6 february 2008 the bitx20 idea originated with a transceiver designed by ashar farhan vu3icq that was intended to be easy to build from surplus and salvage components. Although its not retro, it does have an unconventional appearance and should fit in quite naturally with all the other homebrewed solutions featured on soldersmoke. It is a synthesized rig based upon the arduino nano microcontroller. It was well packaged in a nice plastic box and wrapped in cardboard packaging.

Hams can homebrew the qrp tcvr by using ordinary electronic components. I want to operate cw with the bitx40 and rit would be helpful. What is a bitx a 6 watt ssb transceiver for 20m designed by farhan vu2ese an international discussion group with approximately 2000 active members homebrewed qrp transceiver s for several bands kitbuilt qrp transceivers for several bands and configurations fun to build, and fun to operate, qrp ssb singleband transceiver. The panel is available from qrp labs as a blank panel.

Manual gain control allows you to control the noise floor of the receiver and i personally find it very useful when searching for weak signals or. That transceiver has been built and used by many hams worldwide with great success. Vu2ese of bitx20 fame has just introduced the bitx40. What is a bitx bitx history the discussion group bitx. The raduino addition makes the bitx40 one nice radio, modified and updated, it is awesome. Values of r126 collector load of q12, the mic amplifier transistor and r 123 emitter swamping resistor are thus recalculated and are replaced with a resistance of 4k7 for r126 in place of its original value of 1k and r123 is replaced with a value of 10 ohms in place of 100 ohms. Here are some photos of my build of the bitx40 transceiver rear panel antenna, mic wired for kenwoodalinco, speaker, power. First homebrew contact on my scratch built bitx20 ssb. You may want to follow the steps below to hook it up. The bitx40 board is a two board, 40 meter ssb transceiver module kit with digital control.

Now it has a big brother that adds more bands, more power, better performance, more features, and is still incredibly affordable. Contribute to amuntersbitx40 development by creating an account on github. Some of the semiconductors supplied did not match the manual and i had to look up which one was the equivalent. Noa as ne x tgen we a ther satellites things radio.

Any common 2 ampere, 12 linear volts, power supply will provide enough juice for this transceiver. A compact 10 watts, easy to build, general coverage ssb cw transceiver for. Bitx ssb and transceiver pacific antenna qrp, ham radio, technology, history. Without any hardware modifications the sketch provides the standard basic lsb functionality. On september 10, 2017 september 27, 2017 by ve7bbg. Last year i assembled a bitx40 qrp transceiver from a kit and it turned out well. Mount the bnc connector on the transceiver box with the ground lug. The bitx20a by hendricks qrp kits is a pcb realization.

The bitx40 board is single circuit board 40 meter ssb transceiver module. These bitx40 pages are mostly for archival purpose. I was pleased and very surprised with how quickly it arrived all the way from india. Dsp at the if level is the cornerstone of this impressive new multibander. When i clicked on the download, i received a message that the link was no longer on the server. View and download motorola hf ssb owners manual online. Inside an evening, you can be onair with this digital ssb transceiver, chatting with the local gang or chasing dx across. Somewhere in the time period 20032004 an ingenious ham from india, ashar farhan vu2ese, came up with a revolutionary concept. The transceiver operates on cw and ssb from 3 to 30 mhz. I wanted to download the schematic thats mentioned on farhans bitx40 page. The main boards are built and tested by the manufacturer in india and the end user only has to mount the boards in a case and wire the power, controls, and antenna connections. Its a monoband 40m ssb transceiver capable of 7 watts output. Ashhar farhan this is a general coverage transceiver build on the bitx platform. This diagram is all you need to know to hook you your bitx40.

Si5351 datasheet, si5351 pdf, si5351 data sheet, si5351 manual, si5351 pdf. Reviewing the bitx40 7 mhz 7 watt transceiver module available from modifications at. The latest built up bitx from hf signals looked like a bargain too good to pass up. Bitx 40m ssb transceiver raduino version ve7bbg qrp. Three variable frequencies are generated by the si5351 dds chip, providing mixer and bfo inputs for doubleconversion on both receive and transmit. The bitx40 kit comes with a completed circuit board for the radio and the digital vfo, the raduino. Jerry ke7er notes that the schematics on the website for the bitx40 are final but not necessarily correct. Bitx40 modifications to help improve this hf transceiver. A more complex example is the bidirectional ssb transceiver. At the last club meeting i went to a new ham had a bitx 40m ssb kit and said he was in over his head and asked that someone else complete it. At the hamfest india 2014 conducted on 7th and 8th november 2014 at hyderbad, a pcb of bitx40 transceiver was distributed free as a part of the welcome kit. Hfi 2014 bitx40 design everything you want to know.

This will make troubleshooting easier as any problems will be confined to one small section. Inside an evening, you can be onair with this ssb transceiver module, chatting with the local gang or chasing dx. I ordered it on the 3rd of january and it arrived on the 18th january to australia, not. He then goes on to talk about some of the variances and essential hacks. Describe your experience with the bitx40 hfsignals kit 40m ssb transciever and tell us why you give it the rating you did required. Describing and testing a bitx40 7 mhz ssb transceiver that largely copies the famous design by ashhar farhan vu2ese. Bitx, the qrp hf general coverage transceiver you can build. I have it working but i just have some doubts, id imagine the arduino etc should turn on and off with the volume knob switch but currently the screen turns on as soon as its plugged in, is it safe to. A pll vfocontroller for a multiband ssbcw transceiver, targeting arduino. The radio itself is controlled by an arduino microcontroller using a. I received my bitx40 about a month ago and am planning on making it a winter project. Discussion in homebrew and kit projects started by n4aab, jul 16. If you dont already have an enclosure, this will be the most expensive additional part. The availability of cheap sdr hardware created a flourishing ecosystem for sdr software, but a lot of the hardware driving the revolution was still cheap.

The commradio ctx10 blends high performance, internal sdr technology, high efficiency circuit design, compact size and simple operation. Youll need some soldering equipment, an enclosure for the bitx40, and some basic tools we love a good multitool. There are two pdf files in the files section of groups. To align the bitx40, youll need a quality multimeter with an accurate ammeter. I purchased my bitx40 early in november 2016 before the digi vfo was. The idea was a simple design for a low cost easy to build ssb transceiver. The bitx team should be so proud to have produced such an increadible and extremely cheap radio kit. Bitx40 40m ssb transceiver module kit bitx40 40m ssb transceiver module kit by hf signals when was the last time you used a radio you had built. It is an open source design made into a kit by hfsignals.

I am very happy that they gave me that advice and i would agree that the bitx is not a good first. The bitx40 circuit boards use installed connectors for all wiring. Low cost bitx40 7 mhz ssb transceiver module youtube. Learn how transceiver work using the bitx40 ve3ips. The success of these innovative radios left many asking for a transceiver of similar size and capability. Reviewing the bitx40 7 mhz 7 watt transceiver module available from modifications at n6qws bitx page. Im out portable on a hot afternoon, make several contacts and answering.

At only usd 59, you get a built up bitx 40m metre transceiver with an si5351a frequency synthesiser for tuning. A switch between r15 and r16 will act like a 20 db attenuator. As it is now, i have the receiver working but deaf as a post with the bandpass filter in circuit. New schematic and mods bitx3b3c bitx ssb qrp tcvr for. Everything is provided in the kit to make a fully functioning transceiver a speaker or headphones must be sourced separately. Describe your experience with the hendricks bitx20a ssb transceiver kit and tell us why you give it the rating you did required. The board can be broken into sections and then built and tested one section at a time.

One is receive signal path, the other is transmit signal path. Rf power is hf 100 watts, 50 mhz 100 watts, 144 mhz 50 watts and 430 mhz 35 watts. When was the last time you used a radio you had built. Manual straight key as well as automatic keyer operation is possible via the touch sensors. The bitx40 is a variant of ashar farhans vu2ese original bitx20 design. I was given good advice from both bill and pete from the soldersmoke podcast to start out with a direct conversion receiver then go with the bitx20 as a first ssb rig.