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Custom multicolor backlit FSTN LCD for HF QRP transceiver project
In order to fulfill all the requirements to show different modes and parameters we decided to make our own liquid crystal display. It is designed and built on the well proved – FSTN technology with...
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Crystal filter 9MHz 2.7kHz
One of the most important modules in the home made HF transceiver project is the crystal filter. It is made of individual quartz crystals with matched parameters – Fser. (+/- 15Hz), Lm and Q factor...
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Block interconnection diagram
My homebrew HF transceiver consist of the following printed circuit boards: Front Panel assembly – plastic front panel, control knobs, FSTN display and keyboards, control board Mother board – fits all...
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LOW PASS FILTER BLOCK 3.5-30MHz
This board consist of the following modules: 5 chebyshev type low pass filters to cover all bands High voltage (210V) scheme Antenna RX/TX switching SWR directional coupler and measurement of Vfwd/Vref...
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MOSFET LINEAR POWER AMPLIFIER 50 WATTS
Final 50W amplifier is designed using 4pcs. QFET N-MOS FAIRCHILD FQP13N10 transistor. The module consist of three stages: predriver with MITSUBISHI RD00HVS1, driver in push-pull configuration...
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FACE PANEL MOLD PLASTICS OR ALUMINUM MACHINED
To bring more professional and stylish appearance we decided to design custom front panel especially for this project. Next question was: Injection plastic mold or machined aluminum First, we made one...
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Custom made control knobs
Three types control knobs are used in this project: MAIN dial knob – for VFO frequency tune ENCODER knobs – various functions DUAL CONCENTRIC knobs – AF/RF gain control
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BAND PASS FILTERS
Six band pass filters were built to cover 10-80m bands on RX. Schematic utilizes Skywork solutions AS169 PHEMT GaAs SPDT switches, used in modern wirelless equipments. In order to perform individually...
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MIC amplifier, DSB, CW modulator unit – SSBGEN
In order to form DSB/CW modulation on TX, a SSBGEN board is used. It consists of the following parts: Microphone preamplifier and TX audio amplifier – TL082 Switched input: LINE IN or MIC (MUX 4053)...
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IF/AF unit
This unit includes the following: intermediate frequency IF amplification – MC1350 optional crystal filter RX product detector – SA612 AF preamplifier – LM837 RX MUTE and sidetone input circuitry AF...
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CQ WW 2017 with my all new QRP transceiver
CQ WW DX contest 2017 participation. First QSO’s with my new transceiver Rgo One. Here are the results: Band QSOs Pts ZN Cty Pt/Q 3.5 235 265 8 44 1.1 7...
View ArticleRgo ONE internal iambic memory keyer
Rgo ONE HF transceiver has built in CW iambic memory keyer. 1. Speed 5 – 45 WPM 2. Keying mode – Curtis A; CMOS B (Accu keyer;CMOS keyer but with 30% more tolerance) 3. 4 memory locations with 128...
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RGO ONE on Dayton Hamvention 2018
RGO ONE homemade transceiver will be presented during this year HAM convention in Xenia, OH (18-20 may 2018). We welcome everybody to visit our booth #8014. Congrats for friends from AMECO who will...
View ArticleRGO ONE day one at hamvention 2018, Xenia OH
After the successful presentation start of RGO one we made some contacts on 40/20 meters. Here is a short video of a special event station for the hamvention – W8BI
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First 10 RGO ONE transceivers available soon
Thanks to all who wrote me with questions, interest, expectations and positive “WOW” feedbacks. This urged us to move fast forward and start production of the first ten ready-to-use units. We plan to...
View ArticleRGO ONE in LZ DX contest
Search and pounce in LZ DX contest with RGO ONE. Testing new features – DTR/RTS keying from N1MM contest logger; Testing temperature management with new FAN cradle.
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Building first lot of 10 RGO’s
We recently received first ten sets of printed circuit boards for RGO ONE HF transceiver. So till today we managed to populate some of the boards. Rgo one consist of 20 pcb’s … so a lot of work lies...
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Go Go Go … RGO ONE
Today we made continuity and DC test of the front panel assembly consisting of: CPU board LCD&switch board All tests passed OK and tomorrow face panel’s CPU will be flashed for the first time
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RGO ONE building process
By now all printed circuit boards are ready and populated. We have also some boards – completely tested and aligned: 1. IF/AF board 2. RF MIXER board 3. LO/tones board. 4. Front panel assembly – CPU,...
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LO /local oscillator/ BFO tones board
Here is some pictures of LO board – ready and shielded Copper straps are added in order to improve ground on the board
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