Single Band Ssb Transceiver
Many thanks to Pete (WB9FLW) who writes:Don’t know if you have seen this or not. VU2ESE of BITX20 Fame has just introduced the BITX40.This is a fully assembled and tested SSB Transceiver for $45 including shipping from India!Wow! I may have to purchase one of these and try it out.I’m currently teaching a HamRadio 101 course to a group of 13 year olds. One of them recently asked how much it would cost to get a basic HF radio kit with SSB mode. HF rigs–even basic ones–tend to be quite expensive if they include SSB.Here are details: BITX40Work the world on 40 metersWhen was the last time you used a radio you had built?
Marine Single SideBand (SSB) SingleSide Band (SSB) Radios at Discount Prices. All SSB radios come with a 30 day guarantee against defects.
- Transmitter 10 watts of low distortion SSB provides you with enough juice to have thousands of contacts on all HF bands. Chase DX on CW, ragchew on PSK31 or work the nets on SSB. Any common 3 ampere 12 linear volts supply or a set of eight AA batteries will provide enough power for this transceiver.
- Home › Products. Sort by Youkits CW-40 single band 40 meter CW Morse Code transceiver assembled. Youkits CW-40 single band 40 meter CW Morse Code transceiver assembled. $129.00 Youkits DP-1 QRP Digital Power & SWR meter. $159.00 Youkits EK1C 3 band CW transceiver fully assembled and tested. Youkits TJ5A HF 20W SSB CW.
The BITX40 board is single circuit board 40 meter SSB transceiver module. Inside an evening, you can be on-air with this SSB transceiver module, chatting with the local gang or chasing DX. Plug in the earphones, the included electret mic, tuning and volume controls and you are on air!
Included are high quality connectors, all the needed sockets and jacks, tuning and volume controls, mounting hardware, etc. TechnicalsThe BITX40 is a very clean, crisp and quite receiver. The front-end has a triple tuned circuit that cuts out-of-band signals from getting inside, a diode ring mixer front-end with a very low phase noise, all analog oscillator makes this a crisp receiver that doesn’t overload easily.
The all analog signal path to your ear makes provides outstanding signal clarity that is to be heard to be believed.7 watts of SSB provides you with enough juice to have thousands of contacts on 40 meters, daily rag chew and occasional DX chasing. Any common 2 ampere 12 linear volts supply will provide enough juice for this transceiver. Or you could simply run it from a battery!
HackableThe BITX40 will inspire you to experiment. Modify it, mount it, tweak it, change it.The PCB uses all analog large sized SMD components that are laid out on an easy to understand manner on a double sided board with broad tracks.
This can be your main module around which you can start experimenting. There are jump-points from where you can add more modules like the DDS, more bands, better audio amplifier, etc. Imagination is your limit. You can separately increase the power amplifier’s supply voltage to 25 volts to be more than 20 watts of power: You will have to add a better heat sink. The mods are on the way!The board can be installed inside any box that you like.
Handheld Ssb Transceiver
Make your own station rigs, man-packs, trail radios or mount it in a cigar box and leave it on your bedside table. The tuning capacitor has been replaced by a varactor tuning so you can place the tuning knob anywhere as it only carries a DC voltage.
Watch the instructions video. Box ContentsWe have tried to include connector/hardware you might possibly need to build a full radio. However, we also had to balance the shipping weight to keep the overall cost down.
↓. J BerryI hear your concern, but it’s misplaced in this particular project.
Actually this is a kit that the end user builds, but the toroids and some pre-assembly are done by a women’s collective in India. If anything by purchasing a uBitx you’re supporting a group of women in a co-op who are doing this to earn money. I say this is MUCH better than simply buying cheap goods from a Chinese factory! This keeps their jobs within India instead of simply outsourcing them to China where those wound toroids are likely even cheaper. ↓. Post authorI think the unique thing about the BITX40, though is that it is an SSB transceiver. There are some modestly priced CW transceiver kits out there, but none with SSB.
One you might check out is the CW only QRP Pixie: They range in price from $4-6 US shipped!It’s true that with a miserable solar cycle, SSB QRP is more of a challenge, but it’s still worth it.Yesterday, I did a National Parks on the Air activation with my KX2 QRP in SSB mode on the Blue Ridge Parkway. In 30 minutes, I worked 26 stations in California, Washington, Montana, New Mexico, Texas, Kansas, Nebraska, Mississippi, Rhode Island, Vermont, New York, Florida, Spain, Belgium and a guy 6 miles away in North Carolina. 🙂I believe QRP is still worth it!
↓. Michael BlackNo.A pure audio tone into the microphone jack will result in CW, if the transmitter has sufficient carrier and opposite sideband suppression. Some rigs did it in the past, like the Collins KWM-2, though I gather it used too high a tone, causing other problems.So long as it’s a pure single tone, the SSB transmitter just translates it up to RF, so it’s the same as a CW signal generated any other way. But since it’s an audio tone, the output signal will be offset from the suppressed carrier frequency by that audio tone’s frequency.But if you just feed the tone through a microphone, whatever else the microphone picks up will be transmitted.
So people speaking, the tv in the other room, a noisy fan, bumping the operating desk, all of that will go out, generating an AM signal, but with one sideband suppressed.Michael.
Our new mini HF Mono Band QRP transceiver to any one amateur band from 1 to 30 MHz. ( SSB / CW / JT65 / PSK / BPSK / FSQ & Old Digi mode)The transceiver is built on the scheme with a single superheterodyne frequency conversion and four Crystal quartz filter.The device is controlled by a microcontroller. The frequency synthesizer used as a local oscillator on-chip SI5351The transceiver is designed to operate in the lower (LSB) / upper (USB) sideband as a phone (ssb) and CW.
It is possible to work in digital modes.Brief specifications:Power supply in the 10-14 (13.8 Nominal)Current consumption in receive mode with an average volume of 100 mA600-800 mA in transmission mode (mean 700)Receiver sensitivity better than 0.4 MicrovoltsTransmitter Output Power 3 W nominal. (Max 4 W)Low-pass amplifier Output Power 0.7 WIntermediate Frequency 6 MHzBand crystal filter bandwidth 2.9 kHz at -6dBSwitchable LP filter ( 400-2900 Hz) with a fairly steep slope.Carrier suppression more than 50dBSuppression of non-operating side, more than 45 dBThe output power of the transceiver can vary from 1-10 Mhz 2,5 - 4 Watts, 14-30 Mhz 1,5 - 3 Watts, but not worseFunctional:LSB / USBCW / SSB / DIGITwo AGC mode (Fast / Low)Signal strength indicator (S-Meter)Vertical / semi-automatic keyerTurn on / off key for CW transmissionEnable / disable the transmission of AF signal at the input. For digital modes (DIGI-VOX)The offset frequency for CWSelf-control for CWLock encoderIndication of low voltageAdditionally:.
Volume control. Encoder. Built-in speakerIncludes power cord length of 60 cm.
1,3mm x 3,5mm DC PlugTransceiver size 103x30x75 mm.Assembling and sending the transceiver is performed within 28 days.