AG6JU WEB SITE  ( IPv6 )

IPv6 only web site--  http://ag6ju-01.dynv6.net:5950/ham-radio-ag6ju/

IPv4 web site intermittent.

E-MAIL:

ag6ju-email-address.jpg   pls, place ur call sign in subject line, so it help me discern your e-mail as good e-mail.

webcam

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No QSL card made yet. But gladly accept UR QSL card, except via Bureau. ( not ARRL member )   Hobbies -- Electronics, Ham Radio.   52 years old as 2019  Has been Ham Since 1983.

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I work as contract engineer for small companies do not need full time engineer, or companies who need temporary/part time worker.  mostly  RF design below 1000 MHz, PCB layout, firmware programming with C. experience with designing to pass FCC parts 15, 95, 97 devices.  Rate is around $25 / hr.

Detail of Projects I have done.

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YAESU  FT-450D  HF RADIO 100 WTS  AND KENT ENGINEER STRAIGHT KEY.

    

 

 

 

I used to have 300 watts MFJ tuner, but it arched inside, when try to tune 1.8 MHz , 3.5 MHz band with 100 watts RF power with much shorter than 1/4 wave length wire.

MFJ-962D ( higher power version )  seems to work well with any length of wire at 100 watts RF level in any Band.

I also noticed wire diameter does not have to be very large, I used 22 or 24 AWG.

I think it is important to feed End Fed Wire with Current Balun, and Feed point to be close as possible as Good ground such as water pipe.   

Advantage of End Fed Wire is easy hide.      

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CW Straight Key Memory Device

 

Video Demo of memory straight key CW

Technical Information ( schematic, firmware, others )

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Technican Class Exam Question Pool expire 2022 June 30 ,  Questions with only Correct Answers.

Vtech  CS-6309 handset unit re-register to different base unit.

Morse Code Program download ( DOS program. best to run with DOSBOX )   DOSBOX website, install one for Windows --> http://www.dosbox.com/download.php?main=1

Ionogram Data ( Vertical  HF radar of ionosphere )

Radio Mobile ( Free Radio Coverage simulation )

811 Tube pictures damaged    zip_file

Ameritron-AL-811--1995---internal-pictures   zip_file

baofeng--UV3R--pictures   zip_file

baofeng--UV-5R--pictures   zip_file

icom_ic2at_picture-inside   zip_file

TECSUN-PL-660-shortwave-radio-receiver   zip_file

TEN-TEC--OMNI-V---562--picture-inside   zip_file

wouxun--KG-UV3D---144MHz--222MHz--dual-band-HT---pictures   zip_file

yaesu--FT-1500-internal-picture    zip_file

Yaesu--FT-450D-pictures    zip_file

200wts-dummy-load-1.pdf

BNC-connector-wrench--home-made.pdf

GRECOM-PSR-300--battery-slow-charging-mods.pdf

GRE-PSR-300-earphone-jack-to-speaker-jack--increase-audio-output-level.pdf

MFJ-962D-added-ball-bearing-to-inductor-shaft.pdf

Radio-Shack-DX-398-Sangean-ATS-909--FM-broadcast-frequency-expansion.pdf

TEN TEC OMNI-V   mods to power adjustable to below 5 watts.pdf

ten-tec-omni-v--audio-pop-noise-mods-2011-09-30.pdf

TEN-TEC-OMNI-V--CW-RX-W-NOISE-BLANKER-ON-AND-OFF.mp4

TEN-TEC--OMNI-V--CW-RX-w-remark.mp4

TEN-TEC-OMNI-V--replaced-Relay-output-with-MOSFET.pdf

TEN-TEC--OMNI-V--work-down-to-9V-mod.pdf

Yaesu_FT-2800M--loose-knob-dial-FIX.pdf

yaesu-ft-2800m--adding--external-fan.pdf

YAESU-FT-2800M--INTERNAL-PACKET-APRS-CONNECTION-MOD-w-mic-mute-2014-07-11-1.pdf

yaesu--FT-450D--20dB--ATT--disable--below-1700kHz--change.pdf

6kHz wide FM ( can be used for HF ? )

Radio Simple Control

Bandwidth Efficiency of ( Morse Code / CW )  and ( Voice / SSB ).

GENIE-series-2-garage-door-opener-control-schematic.html

Wildlife Radio Direction Finding

samsung-washer--WF306LAW--XAA   Repair

Good you tube Video on how to correct skidding car on ice.

CB or HF antenna mount using Attachable TOW HOOK came with car.

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Suction Mount for Temporary use.  Since, it does NOT have good ground, must be used with Half Wave Antenna. Half Wave design antenna, such as MFJ-1412 does not require good ground plane. 

      

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Sheep came to front yard,  sheep herder were moving sheep from one field to another.

 

 

more sheep

 

 

snow

 

 

 

 

Time on this Picture is correct,  it is 12:34 AM 

lightening lit up entire field.

 

 

 

Another lighting lit field picture  at 2:19 AM

 

 

 

 

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2019-05-15


 

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