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eHam Forums / Boat Anchors / RE: KWM2 Exciter tuning - strange behavior - Help!
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on: April 17, 2013, 04:28:14 AM
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I learned that lesson a while ago, wait until you can't get the loading right after trying and trying. You go about troubleshooting and can't find anything. The last thing you would think of is spraying the band switch because it's so simple. Once that's cleaned-----You're up and running again. Amazing these radios.
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eHam Forums / Boat Anchors / RE: Want a Collins station-
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on: August 25, 2012, 09:08:19 AM
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Indeed W9EVT has some serious gear but it isn't just looks. I can tell you from personal experience when he's on the Sunday Collins net he SLAMS into New Jersey like no other. If you've ever monitored Air Force 1 on the air it's signal is also different than most aircraft radios I've monitored. It has a loud and clear intensity like no other. George's signal comes in here the same way.
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eHam Forums / Boat Anchors / RE: Aphex 230 Noisey...
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on: August 23, 2012, 11:48:13 AM
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I had the same problem with my Aphex Big Bottom. I cured a bunch of issues using the W2IHY iBox. You didn't state what type of output the speaker goes into if anything at all. I had my radio(s) output(s) going to a speaker switch box, doing this caused all sorts of RF issues and when I added the Big Bottom then I had hum. My radio has a floating ground which meant I had to isolate it from everything. The output from your rack equipment is way too hot to go directly in to your radio and has to be reduced or you wont get the ALC down an acceptable level. Here's how I solved my issue at this link. As the previous posted stated you also need to check that the inputs are correct for the application. Good luck, let us know what you came up with. I fought RF on my Ten Ten Jupiter for 10 years until I read this article and now GONE! http://www.nu9n.com/tx.html
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eHam Forums / Boat Anchors / RE: Want a Collins station-
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on: July 28, 2012, 10:23:32 AM
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Thank you K8AXW I have now even added muffin fans to the Collins gear and amp and everything stays much cooler. It's still a work on progress. BTW to the original poster, I would also reccomend using a variac and meter to constantly monitor your voltages going to your rigs. I'm pretty close to my power station and my voltage ranges from 125V to 127V and it's constantly changing by the hour. I run my recievers (75S-3B and R-388) on 110V or less down to about 105V. When I'm transmnitting, I boost it back up to 115V for good transmitter output.
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eHam Forums / Boat Anchors / RE: Want a Collins station-
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on: July 27, 2012, 06:51:03 PM
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I can appreciate the OP position. I had no intention of getting into that vintage stuff. I had a Ten Tec Jupiter, Kenwood TS-450 and 2 Icom 706MKIIG's. Then I had a SK's widow dump a clean 75S-3B (RE) and 32S-3 (WE) into my lap who's husband was a doctor. She told me to get it out of here or it goes in the trash. I didn't want it. I took it home put it under my desk for about 5 years and never gave it much thought. Then one day I got the urge to see what this stuff was I got after reading about the way people were raving over this Collins equipment. I went to activate it and realized I had no clue how to transmit on this thing it was way too complicated for me. I had only been a ham since 1998. All the stuff I had aquired since was fairly simple to operate. I would up sending the Collins gear to Peter Wittenberg to bring it back to life. I also had a gentleman drive 2 hours to show me the proper way to operate it and give some serious instructions (KE2LZ). After I got comfortable with the gear I RARELY listen to my solid state gear. The sound that comes out of that Collins is just unreal. If you get one, they tell you you don't need the station console but that speaker just made that thing pop!. Yes the pricing is insane for everything connected with the vintage Collins gear but who cares. I had a close ham friend ask me why I have that Collins gear, my response to him was because I can. Get it and enjoy but don't be so quick to sell your Field, you'll need it too. The Collins gear is not for band hoping and it's not that easy to work split but the smell and glow can't be beat. BTW during all of this, a friend calls me and tells me his neighbor is throwing away an old radio in the garage and did I want it, I'm thinking do I need more junk only to cart it away on my time. I reluctantly agreed and he brings over a Collins R-388 reciever. Have a look at my station on QRZ. Yes All of the bulbs are led's. Good luck
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eHam Forums / Boat Anchors / RE: Best receiver sound
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on: February 07, 2012, 04:24:05 AM
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I own a Ten Tec Jupiter with 2 Ten Tec speakers and a Collins S-Line (32S-3/75S-3B). The Jupiter has great audio but the Collins with the 312-B4 console-speaker beats the Jupiter. I can't quiet the Jupiter down using the RF gain like I can with the Collins. I love both but the Collins has a bit of an edge. Many folks are of the opinion you don't need the console on the Collins, this is true for standard operation but if you want the sound Collins intended, get either the 312-B4 or 312B-3 speaker. That's my 2 MHz worth.
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eHam Forums / Elmers / RE: Crystal Frequency Assistance
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on: December 30, 2011, 07:21:49 PM
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Another follow-up.
We newer ham radio guys really need to tip our hats to the older hams from the 50's and 60's and before. These guys had to really work to get on the air in many more ways than we can imagine today. I got my tech plus around 1999 and my general around 2000. I have always had fairly easy radios to tune up to get them on the air, just push a button with a decent antenna. I had joined MARS and learned that my dipole wasn't good enough and had to improve it to be heard. I learned about resonance much better because I was now going out of the ham bands. I was fortunate to be given a Collins S Line and it was at that point I clearly knew I had an awful lot to learn because getting it on the air was a learning experience. I read the manuals over and over and still couldn't get a clear understanding what it was all about. I had to have a fine gentleman to come to my shack teach me what I was missing. I still find myself going back to the manuals and studying something I'm not sure about. I will submit I still have a way to go but I have a better understanding of radio. Do not neglect the information of what can be learned from the older ARRL Handbooks, it's all right there. I have a few that were given to me over the years but mistakenly thought we had moved past that old stuff. I always knew it's better to learn something after you work to get the answer instead of just getting by. I glad I posted that initial question and wasn't given a quick response because I did work out the answer but backwards to get the correct answer using unknown values.
Thank you all and let this be a learning experience for all of us.
This is exactly what I believe N3WAK was talking about
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eHam Forums / Elmers / RE: Crystal Frequency Assistance
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on: December 30, 2011, 06:54:51 PM
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Thank you all for your time. According to the manual: If the desired band is 14.4 mc to 14.6 mc, 14.4 +3.155 divided by 2 equals 8.7775 mc. this is if the lower edge of the frequency is greater than 11.80 mc.
Therefore: 3.5 +3.155 =6.655. because the base frequency is below 11.80.
Heres an oddball crystal: 14.955 x 2 equals 29.91 - 3.155 equals 26.75/base frequency
Well you guys made me bring back the algebra from way back when but I got it. It's really because I was too embarassed to look too stupid and lazy.
Thank you
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