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Jerry Karlovich
Добавлен 3 сен 2007
Yaesu FT-2000 Preamp #1 repair de KD5OM
Replace the first preamp (IPO) transistor of my FT-2000.
Earlier models of the Yaesu FT-2000 were plagued with the receiver
pre-amps being easily blown by a strong incoming signal. In my case
I suspect mine was blown because I use an amplifier. Mine is a FL-2100.
Earlier models of the Yaesu FT-2000 were plagued with the receiver
pre-amps being easily blown by a strong incoming signal. In my case
I suspect mine was blown because I use an amplifier. Mine is a FL-2100.
Просмотров: 4 706
Видео
Hamcom 2011 - Texas' Biggest Hamfest!
Просмотров 86613 лет назад
Many of the sights I've seen and people I've met at Ham Com 2011 & the Lone Star DX Association DX Dinner. Plano Texas
A Short HAMCOM 2010 Video - Texas' Largest Hamfest!
Просмотров 98614 лет назад
HAMCOM is Texas' Largest HAMFEST held every June in Plano Texas. This is just a four and a half minute short of over two hours of film I need to finish editing into a video less than ten minutes. Please subscribe to my You Tube channel by clicking that little yellow button. 73 de Jerry KD5OM e s e
Field Day 2010
Просмотров 1,4 тыс.14 лет назад
KD5OM visits a couple of ARRL Field Days sites in North Texas.
W3FF builds a portable VHF Yagi Antenna at HAMCOM 2010
Просмотров 45 тыс.14 лет назад
W3FF, Budd Drummond, shows us a prototype VHF 2 and 6 meter Yagi Antenna he has been working on. HAMCOM 2010.
HamCom 2009
Просмотров 50214 лет назад
HamCom 2009 - Texas' Biggest Hamfest held in June of each year. Go to www.hamcom.org for complete information.
KD5OM's Backyard Tower Installation.
Просмотров 43 тыс.14 лет назад
KD5OM's backyard tower installation of the U.S. Tower MA-40.
DOT the Mime
Просмотров 20214 лет назад
I met Dot the Mime at the Dallas Farmers Market on a Sunday morning. She was so nice to give me a moment of her time and somebody to actually shoot a video of.
Interfacing the Tenna Dipper to the Digital Dial
Просмотров 1 тыс.14 лет назад
Interfacing the Tenna Dipper to the Digital Dial
Jerry, how is that ham 4 held up there? Is there a plate of some kind or a mount? Thank you
Sorry for just now responding to your question. That is actually a Yaesu G-800 DXA Rotator. As long as I keep the masts very short, there is no problem. The MA-40 has a square plate welded at the top of the mast. The holes were not perfectly aligned and I had to do a little widening, reaming out, of two of the holes to get the rotator to match. Just a MM or two. I've cranked it over dozens of times with no ill effect.
Is it the same one for SUB RX???
👏👏👏👏👏👏👏👏👏👏
Hey Jerry, not sure if you monitor these comments. Recently I purchased a FT-2000. I couldn't pass it up for 700 bucks and I liked the idea of two receivers since I mainly chase DX on CW and work split. After (of course) my purchase, I was reading up on the AC0C filter which seems to improve the rig greatly. As you likely know, they're not sold any more but I did find a 2000 with one installed, however it's a unit manufactured in 2007. Mine was manufactured June of 2010. I had considered purchasing the one from 2007 that has that filter I want, but I'm a little spooked about all this preamp bit now. Any suggestions?
I keep track of several other You Tubers so when you left a post, my little bell went off. I wish I had the AC0C filter, however, unless you are operating in an area of many other transmitters, you might never notice a difference. It's probably a must in a Field Day environment. If you're the only transmitter in miles, probably don't need it. I keep hoping to come across one also. If I see two, I'll let you know. My FT2K was one of the first manufactured. I have a Ham neighbor about a mile away running high power and I can hear him. He's one of those SSB operators using one of those speech processors and he drives it very hard. He makes life difficult. I haven't had this since the 1970s when I had renegade CBers down the street. Maybe a good roofing filter might help. The problem with the first preamp is when you are running an external power amplifier. I have the FL-2100 and they say if the TR relay isn't timed just perfectly, you can zap the preamp. I think that's what happen to me. The two pin diodes back to back works and so far no more problems. Some perfectionist Hams claim it would create inter-mod but I don't detect any. Unless you're running an amp, I wouldn't worry about it. If you are going to run an external linear amp, then maybe on a rainy day, you can install the diodes. Good price on the FT2K, however, I dread the day I want to sell mine. I purchased mine back in 2007 for over $2K.
So, people, are, nuts, about antennas?
I purchased a 3-section tubular tower (Manufacturer unknown) that I am guessing is over 50ft when fully extended. I have replaced the lay over winch with a worm gear model (can raise lower with a big drill) and will do the same with the extender winch. My question to you is, what is that collar called that fits around the tubular portion that the lay-over winch connects to? My pipe is 4-1/2" diameter and have not had luck in finding one. Thanks, W5LF
I need no gym membership. I just work out cranking that thing up and down. ;)
I have now fitted 2X4148 diodes back to back from the RX input to ground internally. I use a Linear very often for DX and have never experienced any problems with the FT2K at all.
I've been considering the MA40 off and on for almost 10-years. The cost of this rig is deceiving when you first look at the various parts. I figure by the time you purchase the MARB base and two section mast, and other parts your 3k. I have some limitations so I would definitely hire a contractor so there's another 3-4k for materials and labor.
Yeah, My wife said, "All that expense to talk to people you don't know. Why don't you just call them on the phone?"
@@kd5oldman HI HI 🤦♂️
@@kd5oldman are you sure that wasn't my wife you were talking to that made that statement.
thunderstorm position LOL love it. Drooling over that setup nice deal wish I had one. Maybe one day :) thanks for sharing your video. :)
For such windy area, you should have stepped up to the heavier model.
This is Texas. The southern end of Tornado Alley. A heavier model to withstand 80 MPH straight line winds or 120 MPH EF1 does not exist. Tnx es 73 de KD5OM
Вот антенна . super antenne
always great to see Budd in action. I had a great chat with him at Pacificon and was lucky to work him on the air with my HBP and hope to work him with my CBP. I love the tent pole idea...going to try that
great except for the loud idiotic music
+Fred Suero Tnx Fred. I selected that music knowing you would approve.
wow. very nice idea... ingenious.
thanks for the video..
Great
Further comment. Problem seems to be the Receive aerial input when using a linear amp. This especially if a seperate Receive antenna is connected. When using AE1 then AE2 is grounded and vice versa. The Receive antenna is NOT grounded in either case. Check the schematic for yourself. Solution.... Get a PL259 plug and solder 2X4148 diodes back to back in the plug. Then fit the plug to the receive aerial input socket. If a seperate Receive antanna is being used then fit the diodes from TP25 to nearest grounded can. Input signal voltage cannot now go over about 0.6 Volts. I cannot see how the official Yaesu hardware mods can help at all. I would not bother with them. Hope this is of help.
OK, I have checked the schematic and the back to back diode mod looks to be quite OK. Someone mentioned IMD but the only effect I believe is no effect or maybe an unmeasurable improvement . Has anyone heard from Yaesu with regard to a Yaesu official mod to these transceivers for this problem. I personally have had no trouble at all and consider the FT 2000 an excellent transceiver. The best that I have ever had. If I ever use a Linear amp then I will install this mod immediately B4 use.
I have not looked at the ft 2000 circuit but some years ago a friend had a comms receiver that the rf transistor went 3 times in for no apparent reason. I soldered in 2 back to back fast diodes from the rf line to ground before the transistor and no further trouble. (limits the input to 0.6 volt.) 4148 diodes would do. Would this be the answer?. Good chance I bet. 73
simple & effective
Do you sell these? Where can I buy one online?
How much was the antenna including installation?
Mucho denero!
averages $1,565.00 for tower not counting antennas. Then whatever cost of cement in your area cost. Not that much really cheaper than most regular towers.
2023 price MA 40 tower $2400 plus shipping & tax Hinged base $1000 plus shipping & tax Raising fixture $800 Concrete foundation $1000 ? Extra hardware and stuff; coax etc $1500 Antenna Steppir $3500 - $6500 Rotator $1200 Total $11K Plus Pleasure received : $Priceless Alternative: wire dipole in trees - $100
Does anybody still use 4 meters?
i like this video . a have cuestion where in location hamcom 2012 . thanks
6 meter is the new 3 meter
very nice! i live in plano and am just now getting into ham radio and will be testing soon for technicians. I was wondering what i would do about an antenna. thanks for posting!
You use the right tool for what ever job you're trying to do. depends on what ever type of operating you intend to do. I have many Ham friends here in Plano with an antenna in the attic.
good work from 9h1xe
What is the name/part number for the balun that is used on the driven element? I want me one.
Very simple, easy to pack away...Great demo Budd, keep them coming...KK4FKS, 73
Nice video. Saw myself in the back ground @ 3:11. 73, Randy, w5kcm
Good Stuff! ...Peanut
Good video OM.