Category Archives: MyShack

My Radio Shack: Transceivers, Microphones, Audio Gear, Antennas and other stuff

Un nou pilon, Partea 1

Montarea pilonului pentru antena de radioamator

Odata cu lucrarile de termoizolatie a blocului de locuinte din cartierul Tineretului (Bucuresti) in care locuiesc, am fost nevoit sa mut sistemul de antene pe pilonul fostei antene colective. Impreuna cu Vlad – YO3IHG si Mihai – YO3-9013BU ne-am pus pe treaba, am dat jos colectiva, am inlaturat antenele vechi pentru TVR1, TVR2 si Bulgari dupa careĀ  ne-am pus pe cosmeticizarea pilonului. Am scos rugina cu o perie de sarma dupa care i-am aplicat un strat serios de grund.

Un impediment a fost coinciderea lucrarilor noastre cu cele ale muncitorilor care inlaturau pietrisul de pe acoperisul blocului. Moment numai bun pentru a ne pudra cu praf (a se vedea si entuziasmul de pe fata mea :)) ).

Astazi urmeaza vopsirea acestuia in alb iar maine cel mai probabil instalarea antenelor de emisie-receptie pentru radioamatori la locul binemeritat.

Motorola GM300 – Ultima achizitie pentru shack

Chiar daca nu ma consider un impatimit al ultrascurtelor, simteam oarecum lipsa unui transceiver VHF in shack-ul meu. Cum nu doream o investitie prea mare in acest domeniu, ocazia s-a ivit odata cu scoaterea la vanzare a unei superbe statii Motorola GM 300 de catre Vlad YO3IHG. Cele 16 canale programate in banda de 2m, 25W putere la emisie, rezistenta recunoscuta la intermodulatii a transceiverelor Motorola (lucru important pentru o statie fixa in ultrascurte localizata in Bucuresti) precum si pretul promotionalĀ  m-a convis s-o cumpar.

In ciuda faptului ca este conectata la o antena lambda/4 amplasata in balconul meu de la etajul 6, Motorola GM300 are o receptie fantastica. Rar am intalnit statii din Bucuresti pe care nu am reusit sa le receptionez. In comparatie cu Alinco DR135 unde optimist spun ca 80% din semnalele ce se auzeau in difuzor erau intermodulatii in special provocate de statiile de taxi, pe Motorola GM300 cel putin pana acum n-am auzit deloc acest fenomen.

Impresionant este ca in special seara cu cei 25W si antena din balcon deschid destul de bine repetorul de pe Cozia iar Babele si Omu, merg fara probleme mai tot timpul zilei

Tind sa cred ca va sta destul de mult timp acest transceiver la mine in shack.

Continue reading Motorola GM300 – Ultima achizitie pentru shack

YO3IBW’s Shack, 05 september 2010

Some recent pictures of my radio shack. You can see the old Kenwood TS850s, the audio Behringer rack that contains Behringer Feedback Destroyer DSP1224p, Behringer Dynamics Processor MDX 1600, Behringer Virtualizer PRO DSP2024p, Behringer B1 Studio Condenser microphone with DIY pop filter, Behringer Xenyx 802 mixer used as a preamp and my Proxel power supply.

Pics from my Shack, today 15.01.2010

This is how my shack looks today 15.01.2010. Well, you can see a Kenwood TS850s, some audio equipment like the Behringer Xenyx 802 mixer as a mike pramp, the Behringer B1 studio condenser mike with a DIY pop filter, the parametric equalizer DSP1124p, dynamic processor is Behringer MDX1600, a Proxel switching power supply some speakers, my desktop PC, my laptop PC and a lot of mess on my desk.

73 and al the best!

Remote Antenna Switch, Outdoor Unit – Part 1

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Today I’ve worked on my future Remote Antenna Switch. Here you can see some pictures of the outdoor unit … All the device will be installed in a weather sealed plastic box. It is not finished yet so stay tuned.

Sorry for the quality of the photos, the camera was my mobile phone. šŸ™‚
If you want more info on this kind of project, you can check this this and this. Continue reading Remote Antenna Switch, Outdoor Unit – Part 1

Pop Filter mounted on the Behringer B1 Studio Mike

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After adjusting the levels on the Behringer Ultramizer Pro I have notice another problem. On the audio, when I was using the words containing letter “P” “F” some pops apear. The solution on this problem was to mount a Pop Filter. Unfortunately on the local audio store, this device costs around 20 Euros plus taxes so clearly it was too expensive. Searching the Internet I have found several tutorials on how to buildĀ  a DIY pop filter. Look at the images above how my creation looks. I want toĀ  mention that all the materials doesn’t cost more then 3 Euro.

ro: Dupa ce am terminat de setat compresorulĀ  multiband Behringer Ultramizer PRO o noua problema si-a facut aparitia. Rostind in preajma microfonului cuvinte ce contin literele “P” si “F” suflul de aer genera un zgomot destul de urat sesizabil sub forma unui pocnet (pop). Puteti verifica si voi acest fenomen pozitionand palma in fata gurii la aproximativ 3 cm si rostind cuvinte ce contin cele doua litere (sugerez: Para, Par, Pendula, Pensula… lol ah? ). Ā  Probabil ca ati observat ca in studiourile profesionale, in fata microfonului exista filtru textil creat expre pentru a opri acest fenomen. Solutia “industriala” costa undeva la 20 euro plus TVA motiv pentru care am decis sa construiesc in regim DIY ( Do it Yourself) un asemenea filtru folosind un gherghef utilizat in broderii iar ca material textil am ales o pereche de ciorapi de dama. Suna amuzant stiu, dar va asigur ca am rezolvat problema pop-urilor cu nici mai mult nici mai putin de 3 Euro.

Cables behind my Behringer Audio Equipment

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In the image above you can see some of my XLR-XLR audio Cordial CMK222 Cable with ferrite on them to avoid any RFI that could cause trouble on the Behringer Audio Equipment.

If you want to experiment with some professional audio gear on you’re ham radio shack don’t forget to use as short as possible good audio cables with a serious shielding, use the balanced XLR connector if it’s possible, use two ferrite on each end of the cable, keep the audio cables as far as possible from the antenna and power supply cables, a good grounding is always welcome in the shack … and many other advices that you can find on the net.

YO3IBW/233SD116 Radio Shack 20.10.2009

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Some of the equipment where changed some of them are still the-same. In the movie above you can see my precious Kenwood TS850s AT, the Behringer B1 studio mike, Behringer’s Shark DSP110 (noise-gate and mike preamp), Behringer Feedback Destroyer Pro DSP1124p (12 band parametric eq), Behringer Ultramizer Pro DSP1424p … and other stuff…
I know that you probably believe that I’m into eSSB but actually I’m transmitting on the 2.7Khz filter. The difference with those audio equipment is that on the ~50hz – 2.9Khz bandwidth the modulation is sounding great, much better then the MC43 default mike.

73!