Mai mult din curiozitate dar si pentru a afla cu exactitate ce filtre detine dotarea standard a transceiverului Kenwood TS 850s AT pe care-l detin m-am apucat de facut “sapaturi” folosind vasta sursa de informatie pe care ne-o ofera Internetul.
Din cautare in cautare am dat peste “Kenwood TS 850s Service Manual and Notes” versiunea PDF, thanks God ca mai sunt unii care digitalizeaza asemenea documente si le pun la dispozitie si altor interesati (a se vedea si proiectul Restitutio initiat de SRR).
Rasfoind manualul am dat exact peste informatia pe care o cautam. La pagina 12 se dau caracteristicile filtrelor ce se gasesc in dotarea standard a rig-ului (click pe imaginea de mai sus pentru versiunea intr-o rezolutie mai mare).
Voi spicui din acele tabele sectiunea ce m-a interesat, adica Pass Bandwidth, Nominal center frequency precum si tipul filtrului (XF- Cristal , CF – Filtru Ceramic).
Continue reading Kenwood TS 850s si largimea de banda
Listen the recording above to see if you can feel any differences between the default Kenwood hand mike (MC43) and the Behringer audio gear. The recording was made using the headphones jack and the moni function on the Kenwood TS850s plugged into the line-in input of my computer sound-card. What do you think? Should we use some audio processing or not?
Listen closely and after that give a vote and tell me what do you think is the best audio from your point of view.
PS: Use a good pair of headphones or a good loudspeaker.
Continue reading Should we use some audio processing or not?
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!
Another Kenwood TS-850s board (PLL Unit) with brand new electrolytic capacitors. Overall 96 capacitors replaced until now, TS-850s got 113 so there are 17 old ones that has to be changed on 2 more boards left, one is the output power unit and the second is the digital board.
Another Kenwood TS-850s board (RF Unit) with brand new electrolytic capacitors.
Yesterday, after 5 hours of work, I manage to replace over 40 electrolytic capacitors on one of the IF Unit boards and on the power distribution board. Below you can see some pictures from the first step of a complete electrolytic capacitor replace on the Kenwood TS-850s and above a happy Kenwood meal. 😀
Today I’ve made some carrier set point adjustments on my Kenwood TS850s so that I’ll have the-same audio tone on LSB and USB according to my voice.
1. First of all, open the little hatch on the top of the radio (on the place where DRU-2 unit and filter dip switch are located. Click on the image above for hi-res version).
2. Plug the original Kenwood microphone ( I use the MC43 hand mike). Locate VR501 (LSB) , VR502 (USB), VR503 (Balance Audio Tone).
3. Set the frequency on 14.200 Khz.
4. Turn the radio OFF and after that turn it ON while pressing also the F.Lock button.
5. A menu will be displayed. While rotating the M.CH/VFO.CH knob make sure that menu 00 (zero zero) is displayed.
6. Use a pair of headphones with the transceiver and push the Moni button while adjusting the Moni knob for the right volume without getting mike feedback, hi.
Continue reading Kenwood TS-850s Carrier set point adjustments
Warning, I’m gonna show you some nasty pictures of my Kenwood TS850s.
Continue reading Kenwood TS850s inside Part Two
Nice transceivers, only … more than 10 years between them. 😀
This is how my radio shack looks, today 19.04.2009. On the audio, I’m using a Audio-Technica PRO31 dynamic mike, after that a Behringer Xenyx 802 mixer used as a microphone preamp and some basic eq on the signal. The next equipment in the audio chain is a Behringer MiniFBQ800 9 band graphic equalizer, the signal goes in to a Behringer MiniCOM800 modeling compressor. Between the Kenwood TS850s transceiver and the audio gear I’m using a small RF, Ground Loop filter and audio attenuator. The schematic of this DIY box can be seen here.
73’s from YO3IBW/233SD116 name Dan. Cheers!
Am adaugat la lista de “scule” un nou modelator de modulatie de tip Behringer Xenyx 802. Mixer folosit momentan ca egalizor de microfon dar cu viitoare utilizari si in alte combinatii.
Efectele sunt clar vizibile. Ca solutie de preamplificator (cu posibilitate de Phantom – 48v pentru microfoanele condensator) + o corectie grosiera Basi/ Medii/Inalte, combinatia este un best buy.
Mai jos puteti vedea un “Sound bite” inregistrat de 233SD115 Aurel prin intermediul unui microfon de calculator si un Yaesu Ft450.
Continue reading Behringer Xenyx 802 Mixer
Ce tare venea baliza din 11.253 khz pe sarmele mele noaptea asta (23.02.2009)….
en: Receiver Kenwood TS850s, Dipol Antenna for 11m band, Frequency 11253Khz USB, Weather station Beacon in HF. This is the second recording with a stronger signal.
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