PE1CMO (@Pe1Cmo) profile picture

PE1CMO

@Pe1Cmo

PE1CMO electronic engineer

 netherlands
Joined January 2019
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  • Followers487
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nice to work Ivory coast, my DXCC 154 at the QO100
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The LNB is mounted on a 22mm copper tube and equipped with a quick coupling. This set can be mounted on a Poty feed. Also at the picture a new converter. With this set, 10489.5 is converted to 432.5 MHz. Price converter € 200.00, LNB € 17.50 (without tube) info@HFPrints.com
Image from PE1CMO (@Pe1Cmo)
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Today I receive 20 LNB's for the QO100, but a standard LNB is not stable enough. I change the LNB for an external 25MHz reference from the converter. This LNB is modified for the QO100 narrowband (SSB)
Image from PE1CMO (@Pe1Cmo)
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The first series QO100 upconverters is ready for shipping to France, Azores and South Afrika. 10pc and the most of them sold. over 10 days we start a new batch upconverters. Now the QO100 down converters in production.
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I have made a block diagram in which you can see the possibilities for the PE1CMO QO100 products. The reception down converter will be built up in the coming days. Later, beginning 2023, there will be a 28 to 432 MHz upconverter. info rene.pe1cmo@gmail.com
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New generation QO100 products. 3 years ago we built many transverters, a good design but expensive. Now we make a cheap up-converter with 12 Watts out for the QO100, price 325 euro incl heatsink. Production is starting. The new down converter comming soon. (box 115x 65 x 32mm)
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PE1CMO retweeted
PA5X (@PA5X_HAM) profile picture
PA5X@PA5X_HAM25 Nov 2022
As special surprise, we activated #QO100 #satellite using the DX pedition set from #PA3FYM, #PE1CMO, #PA2V . Will be active and try to work you all during coming days! Grid LH46cr #5R8DXpedition #iota #5R8PA #5R8CG #5R8WP #5R8MM #5R8WG #hamradio #hamr #NosyBe #Madagascar #PA5X
Image from PA5X (@PA5X_HAM)
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BG0BGZ in NN03VV …The new grid。45cm Disc 20WPA Pluto+SDRConsole
Image from BG0AUB (@ZhaoFen37759626)
Image from BG0AUB (@ZhaoFen37759626)
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Last months Rene @Pe1Cmo, Peter #PA2V , and me prepared together with Bo OZ1DJJ / OX3LX 'a secret mission': Activate OX (Greenland) through #QO100. Yesterday Bo already made a test contact, but today the party starts! A new DXCC and new continent! 🥳🍾🥂👏 Now wkd WAC! @amsatdl
Image from Remco den Besten (@remcodenbesten)
Image from Remco den Besten (@remcodenbesten)
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A41ZZ at 4 square locators at the same time: (left up is A41ZZ rest is pile up...)
Image from PE1CMO (@Pe1Cmo)
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2 grid squares in one QSO
Image from PE1CMO (@Pe1Cmo)
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A41ZZ portable: good dx and Pile up
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Yesterday I started with 3 new transverters for the QO100. One of them, 432 to 2400 MHz TX and the RX to 144 Mhz for full duplex (split). The transverter is locked at a GPSDO, so he works also when there is a interruption at the beacon. r.stevens@hfprints.com
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I built also 70cm converters to 28MHz with a 1ppm TCXO. last week a friend of me asked a GPS locked converter, it is for digital modes and EME. So yesterday I built 4 converters for him with a GPS reference. Filtering is by SAW filters 430 - 439 MHz.
Image from PE1CMO (@Pe1Cmo)
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Maybe this weekend at QO100. (If the weather is good.)
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After months of preparation, whatsapping & emailing this morning at 0757 UTC Rene @pe1cmo and me made the first ever QSO through #qo100 from The Netherlands with Farid #YC1HVZ from Bandung (Indonesia, OI33UD) !! 🙏😅🍾🥂👏
Image from Remco den Besten (@remcodenbesten)
Image from Remco den Besten (@remcodenbesten)
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In 2018 (before clearance) I had intense discussions on fora about 'how' to operate via '#qo100'. As there's no Doppler, I consider(ed) the pass band like a normal amateur band - provided you are 'on frequency'. For my views on working 'split' I was almost banned from Earth😇
Image from Remco den Besten (@remcodenbesten)
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Today I finished 5 new transverters with the DX mode. (simplex at 432 MHz). It is a changed design, better efficiency, so a smaller heatsink and 100 euro cheaper. The transverter contains a RX converter, 25MHz reference, and 12 Watt TX upconverter. PE1CMO info@hfprints.com
Image from PE1CMO (@Pe1Cmo)
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A German mode (duplex 432MHz TX and 144 MHz RX) is also possible for the same price. (700 euro incl LNB)
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QO100 amplifier. For my new transverter I designed a new amplifier with about 50 mWatts in for 12.5 Watts SSB out. Enough for the QO100. Over 2 weeks I will redesign the board for sales, complete soldered and tested will cost 65 euros. r.stevens@hfprints.com
Image from PE1CMO (@Pe1Cmo)
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For cooling, there is a copper foil under the transistor and two screws naar the transistor. For this power enough, but a small strip over te transistor is possible. Power voltage 28 to 30V by 1.1 Amps
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