Yaesu FT-817 - Скачать руководство пользователя страница 15 | Manualshive

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Pagina 15

KB2LJJ Radio Mods Database and Manuals

03/05/2008 08.24.31

http://www.kb2ljj.com/data/yaesu/ft-817.htm

Andreas
DL6EAT

HF Clipper für Einbau in das Handmikrofon des Yaesu FT-817

Author: Joachim Münch DF4ZS

Joachim Münch DF4ZS - 7 Dezember 2001

Vorweg, für Schäden die durch den Umbau verursacht werden übernehme ich keine Haftung. Bei mir
und einigen OM´s funktioniert der HF-Clipper bestens und bringt so an die 10 dB. Der Einbau in das
Mikrofongehäuse erfolgt durch Austausch der dynamischen Mikrofonkapsel. Richtet man sich nach der

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Содержание FT-817 -

Страница 1: ...the bank buying alkaline cells and give you portable batt power Two words of caution As with all mods the warranty is affected do so at your own risk By during this mod you have now disabled the prot...

Страница 2: ...ut of the connector It will then pull out This way you can push it back later and no one will ever know Extended TX for FT 817 1 Remove the front panel 2 Look down on the back of front panel with the...

Страница 3: ...tabs holding the front panel to the chassis and slightly move the front panel forward 7 Disconnect the ribbon cable that connects the chassis and the front panel 8 Remove the jumper at location on Fro...

Страница 4: ...hand jumper IDs to 6 9 J4006 J4009 that should be shorted in order to open the transmit range of this rig My radio was a type BY3 purchased in Singapore Feb 2002 When I opened it up jumper five J4005...

Страница 5: ...rs 3 4 and 5 solder bridged and the rest are OPEN My question referring to the original post Is do I unsolder 3 and 4 also along with 5 and solder 6 thru 9 Or do I need to leave 3 and 4 as they are no...

Страница 6: ...hrt irgendwo unterbrechen und die Enden isolieren damit ein Accu erkannt wird Wer wegen der Garantie eine reversible nderung vorzieht kann im Stecker den entsprechenden Pin mit etwas Geschick und eine...

Страница 7: ...gibt sich die oben beschriebene Variante Vorsicht beim L ten etwas Erfahrung sollte man schon haben um keine unerw nschten Kurzschl sse zu produzieren Ganz wichtig Nach dem Zusamenbau mu unbedingt der...

Страница 8: ...MHz 115 37 50M L3 RF Power L3 50MHz 64 38 50M L2 RF Power L2 50MHz 23 39 50M L1 RF Power L1 50MHz 1 40 VHF HI RF Power HI 144MHz 140 41 VHF L3 RF Power L3 144MHz 93 42 VHF L2 RF Power L2 144MHz 28 43...

Страница 9: ...B is not reaching the 5W mark even when the CW tone and in FM the rig runs on specified power I walked through the circuit diagram and found the reason The capacitor C1113 on the main board is too sma...

Страница 10: ...nd good luck Andreas DL6EAT Subject FT817 ALC mod 1uF to 47uF C1113 Hi I looked into the ALC mod you posted for the FT817 You changed a 1uF cap to 470uF I entered the circuit into a simulator and got...

Страница 11: ...ou I thought a short release time would raise the average power It works so I must be missing something In the schematic below V1 simulates a 500mS pulse coming from the Forward detector The ALC drive...

Страница 12: ...mall electret microphone is inside But after opening the mic the reason was easealy located The necessary DC voltage comes to the microphone via a small resistor The value of this resistor is by far t...

Страница 13: ...often high signal strenths are present the RX sounds like the AGC is switched completely off If using with small signal amplitudes it sounds much better This seems to be a general problem of the FT81...

Страница 14: ...he SMD parts are very small In my case I had no SMD C available and I didn t want to use Tantal C s therefor I connected the 10uF via cable to the upper side of the main board It s not looking nice bu...

Страница 15: ...des Yaesu FT 817 Author Joachim M nch DF4ZS Joachim M nch DF4ZS 7 Dezember 2001 Vorweg f r Sch den die durch den Umbau verursacht werden bernehme ich keine Haftung Bei mir und einigen OM s funktionie...

Страница 16: ...rofongeh use legt man f r die folgende Anleitung so dass die Kabel ffnung zum eigenem K rper zeigt Die PTT Taste ist nun auf der rechten Seite Das Clippermodul legt man mit der L tseite nach unten ber...

Страница 17: ...Pagina 17 KB2LJJ Radio Mods Database and Manuals 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm Zweitonsignal ungeclippt stark geclippt Eintonsignal...

Страница 18: ...tte ich bereits einen Mini Clipper konstruiert der von OM s die diesen durchweg ungeschirmt in Handmikrofone eingebaut haben gut beurteilt wurde Bis 100 Watt sind Probleme mit HF Einstrahlung nicht be...

Страница 19: ...and be in a comfortable operating position so using this paddle meant attaching it to some kind of base and operating on the desk top in the conventional manner The FT 817 has the option of keying the...

Страница 20: ...a 20 KB2LJJ Radio Mods Database and Manuals 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm Attached Detached Yaesu FT 817 CW Filter Installation Author Dave Fifield AD6A By Dave Fifield...

Страница 21: ...e the full size version 1 Removing the top cover is simple first take off the shoulder strap brackets 4 screws and then remove the 5 screws in the top cover and it pops right off don t undo the two sc...

Страница 22: ...03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm 3 Here s the filter correctly oriented ready to be put in Note that the 3 pin connector is on the LHS and the 4 pin connector on the RHS...

Страница 23: ...You re almost done You will probably panic at this time as I did because as you switch through the modes from USB LSB CW CWR etc the rig seems to be stuck in SSB filter mode There s one more thing yo...

Страница 24: ...ttom end of 40m sounds REAL NICE Folks if you are going to do CW seriously with the FT 817 you will simply HAVE to get the YF 122C filter option It s a must have IMO This modification can also be foun...

Страница 25: ...ls 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm I went searching for other mod space there s some between the front panel assembly and the diecast chassis and some more between the CW...

Страница 26: ...hold the front edges of the top and bottom panels in place If you take it apart please be VERY careful not to damage the front panel connector ribbon or connectors they look fairly delicate Lastly you...

Страница 27: ...isassemble the transceiver remove the front panel whilst taking care to carefully disconnect the cable between the front panel and the body of the radio Remove the rubber band on the VFO knob and remo...

Страница 28: ...l For example this makes it possible to expand the Tx coverage of a European FT817 so it will work if travelling to the USA but to retain the correct Euro repeater shifts It should also take away some...

Страница 29: ...a 29 KB2LJJ Radio Mods Database and Manuals 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm Et enkelt front l ft til FT 817 Author LA9MGA Av LA9MGA Helge Karlsen Bilder LA2PIA Petter S r...

Страница 30: ...r jeg vil benytte skulder reima L fteanordningen skyves helt opp i sporet til reima n r den ikke er i bruk og den er dermed nesten helt skjult Hvis du benytter m lene p tegningen vil dette gi et l ft...

Страница 31: ...Pagina 31 KB2LJJ Radio Mods Database and Manuals 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm Front l ftet i bruk N r du drar plastproppen opp er det meste gjemt bort...

Страница 32: ...ft 817 htm Dette er plastdelene FT 817 Mod 2 Collins Filter CW AND SSB Author Lutz W4 DH7LK Risk You will loose the warranty Fun You will have a fantastic rig with a 2 4 Khz Collins filter in SSB tra...

Страница 33: ...nced OM to help you 1 See page 74 of the Operating Manual and follow steps 1 and 2 2 Remove the PCB MAIN UNIT watch on the battery connector and the 3 pin connector in the middle of the board Remember...

Страница 34: ...Pagina 34 KB2LJJ Radio Mods Database and Manuals 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm Original SSB Ceramic Filter removed Position of SSB filter...

Страница 35: ...Pagina 35 KB2LJJ Radio Mods Database and Manuals 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm SSB filter wired CW filter wired...

Страница 36: ...aster This procedure here will increase power to 10 watts on HF bands only but ensures that the DC Over current protection will reduce power into abnormal loads that the SWR detector cannot detect SWR...

Страница 37: ...se changed settings hold the F button for two seconds when finished User comment Subject blown finals and 10 W modification Hi OM This topic is very hot in the world wide FT817 discussion groups I thi...

Страница 38: ...ck 73 Johnny Siu VR2XMC Yaesu FT 817 CAT interface Author Edwin PE1PWF Dit interface is bedoeld om een Yaesu FT 817 te besturen via de PC Het kan worden gebruikt om modes frequenties of geheugenkanale...

Страница 39: ...interface is een BMP bestand helaas gaat printen dan wat onhandig maar met bijvoorbeeld Irfanview kun je het afdrukformaat mooi verschalen Ik gebruik versie 3 17 en als ik het plaatje afdruk op 1 05x...

Страница 40: ...ng some SMD Unfortunately I had to use a bitmap file for the layout you have to scale this to a PCB size of 69 42 5 mm I use IrfanView version 3 17 for printing my PCB layout scaled x 1 05 gives me th...

Страница 41: ...Pagina 41 KB2LJJ Radio Mods Database and Manuals 03 05 2008 08 24 31 http www kb2ljj com data yaesu ft 817 htm...

Страница 42: ...my story Recently I found that my 817 occasionally did not put out any power on 440 transmit when using a duck on the front BNC Further examination showed that when set to low power and the antenna wa...

Страница 43: ...remely portable HF through UHF all mode transceiver capable of operation on all amateur bands from 160 meters through 70 cm excluding unfortunately 222 MHz It is also considered to be a QRP transceive...

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