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eHam Forums / Elmers / RE: What is this interferrance?
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on: Today at 08:55:43 PM
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That doesn`t sound like power line noise,since you don`t hear buzzing ac noise. Are you hearing it on 10/12 even when the bands are dead? This would indicate a close signal.
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eHam Forums / Elmers / RE: Downspout Antenna
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on: May 17, 2013, 09:50:21 PM
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Well, the others have posted about some of the challenges you may have, but what I would try is just run a twin lead out to the downspout. Connect one side of the line to the one downspout and then the other to the other one. I have no idea if it will work, but that's the fun part of the hobby... trial and error.
Some of the MFJ Tuners have a twin lead or a single wire post on the back of the tuner, so you would just hook that up to there. Or you can get a balun like the LDG RBA-1:1 that can convert the coax to the twin lead.
I've been thinking of playing around with a downspout antenna as well and have also thought of using it like a dipole. One on the front of the house and one on the rear. I have everything I need to try it, just need to find the time to do it.
I would try that myself,with an excellent tuner. Or run some very light gauge wire out to one of the palm trees. |
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eHam Forums / Elmers / RE: NEW from Yaesu: FTdx-1200 [160-6 meters @ 100w]
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on: May 17, 2013, 08:33:35 PM
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Nice looking rig though a few things to note. Does it have direct frequency input?(without external keypad) The tuning rate of 1/5/10hz,is there a coarse 100hz or 1 khz step? Third order imd of -31db. Why doesn`t Yaesu include the mini din plug for linear use? The filters seem good but for the price why not get the `3000?
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eHam Forums / Elmers / RE: RST confusion..inexperienced needs Elmer...
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on: May 15, 2013, 03:18:45 PM
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Chirp,though less common today can exist in any modern rig. All it takes is a little or a lot,of rf getting into your rig or power supply. In the old days chirp came from an unstable vfo,or power supply. Chirp is by far the most common form of bad tone. Bad retification is mostly unheard of today,though certainly possible if your power supply filter caps are that bad. Chirp sounds like "Blah bit blah bit,blah blah bi blah." Bad retification sounds even more garbled,very harsh sounding,like listening to an am radio while driving under high voltage lines.(sort of) Normal frequency drift is not considered a tone problem. Some old rigs had all three problems.
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eHam Forums / Mobile Ham / RE: HT That recieves SSB & CW
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on: May 14, 2013, 09:22:16 PM
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I have a TH-F6 Kenwwod ht myself. They do work great for ssb/cw reception provided you connect a few feet of wire to it. You won`t hear any hf with the built in ferrite rod ant. You`ll need an sma to so-239 adapter,then put the wire into the end of that. Also make sure your menu is set to the external antenna selection. They are great ht`s,with low receive current. I`ve had mine several years,still using the original battery pack.
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eHam Forums / Misc / RE: WARNING: Lithium Polymer Batteries fire
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on: May 07, 2013, 07:47:22 AM
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Here`s another reason to "read the manual." Canon,and other camera makers have warned the public about buying off brand replacement batteries. Many are cheap,counterfeit batteries that can and will leak or explode when charged. Whenever buying a replacement battery pack,make sure it is the brand name and it comes with a warrenty. The brand name batteries aren`t expensive anyway.
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eHam Forums / Elmers / RE: How much white noise is too much white noise?
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on: May 06, 2013, 06:56:30 AM
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I`d also try running the `718 from an extension cord to another circuit. Years ago I had a loud buzzing ac type noise in my shack. It turned out the outlet for that room was simply damaged from so many plugging in/unplugging over the years. Replaced the outlet and noise was gone. Wish everything was that simple. Do you have a computer on that circuit?
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eHam Forums / Misc / RE: WARNING: Lithium Polymer Batteries fire
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on: May 02, 2013, 08:45:49 AM
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My camera uses Lithiun Ion batteries and they work great. One thing to remember is if you ever put a replacement pack in your pocket,make sure nothing can short the terminals out. Loose change,a pen,etc. They make covers for them but nobody uses them.
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eHam Forums / Mobile Ham / RE: 75m hamstick
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on: April 30, 2013, 10:14:18 AM
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Probably the same reason 1.5 inch long 2meter antennas arn't flying off the shelves.
I`ve always been curious why they make those. Unless you`re standing right below the repeater tower...Hamsticks work well,I`ve got a few. True,the bandwidth on 80/75 is about 10-15 khz wide. |
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eHam Forums / Misc / RE: Reviews
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on: April 28, 2013, 10:32:09 AM
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I hate to rant,but my biggest complaint is when I hear,"Too many menues." This is 2013 folks,and unless you own a Drake TR4 or Kenwood TS-520,830S,etc. you will have menues. They are not difficult,just read the manual. Most menu items are set and forget anyway. Since I use power ouput menu selection frequently,I simply leave it on that menu number so when I go into the menu it`s right there. The other one that annoys me is,"You will need the software cd to program it." What`s so difficult about putting 10 repeater frequencies into memory? Unless you`re dealing with 100 memories,that`s different.
All new rigs have menus but some of them are more dependent for routine operations than others. There is no escaping it. Yaesu and Icom tend to be more menu dependent than Kenwood in their class range. |
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eHam Forums / CW / RE: CW Filters
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on: April 28, 2013, 10:26:22 AM
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I use a 500hz filter in my FT-857D and I`ve found it`s just right for 95% of operating. If I was contesting or field day maybe a 300hz would be necessary. Or if you`ve got two strong stations next to you.
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eHam Forums / Misc / RE: Reviews
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on: April 28, 2013, 10:13:06 AM
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I hate to rant,but my biggest complaint is when I hear,"Too many menues." This is 2013 folks,and unless you own a Drake TR4 or Kenwood TS-520,830S,etc. you will have menues. They are not difficult,just read the manual. Most menu items are set and forget anyway. Since I use power ouput menu selection frequently,I simply leave it on that menu number so when I go into the menu it`s right there. The other one that annoys me is,"You will need the software cd to program it." What`s so difficult about putting 10 repeater frequencies into memory? Unless you`re dealing with 100 memories,that`s different.
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eHam Forums / Misc / RE: User Impression of the TS-570SG
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on: April 26, 2013, 07:54:02 AM
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The noise blanker is a little below average, the DSP NR1 for SSB doesn't do much at all- I would leave it off, the DSP NR2 for CW makes the background noise sound funny (like bubbling water) but it really does bring up signals out of the noise. Decent receiver overall, good ergonomics, you get both a CW memory keyer and can install a voice keyer option and run both from the front panel. In all honesty, I would take a Yaesu FT450 over it, though.
John AF5CC
I`ve had a TS-570SG for years also. I agree that the NR2 for cw is very effective,and signals do pop out of the noise. The digital receive filters are great,you can choose from many narrow choices. The weighted vfo knob is great,you can tune across the bands quickly. The main thing I didn`t like with this rig is the receive seems very noisey. Lots of white noise,even with no antenna. The "watery" dsp didn`t bother me. |
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