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eHam Forums / Mobile Ham / RE: Dual-Band antenna mount on full-size van?
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on: February 23, 2013, 04:49:53 AM
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But that is not possible without the services of a professional installer, and I live far away from such, out in the desert/mountains of west Texas.
So there is no mobile radio installer w/in miles? Or a Best Buy type store that does stereo installation? Even my local Verizon Wireless store does stereo installs... A hole in the roof is nothing. Yes, I have done it, it is not that big of a deal. Mike It is true. - Just about anybody can work out how to drill a hole in a roof. Doing it without boogering up the noise-abatement package I mentioned ( and provided images of ) takes a bit more finesse, though. I'm not interested in a "Bubba" installation. This is a nice clean van, and I intend to keep it that way. And, as I mentioned, there are no professional installers located near to this desert community. The nearest Best Buy etc. is located several hundred miles away. I thought about talking to the Ford dealer, who should be able to work with the noise abatement package but guess what? - The nearest Ford dealer is also located several hundred miles away. That's why I am looking for an alternative to drilling through the roof, even though doing so would IMHO give the best possible signal, and ( properly done ) look best, too. I do not trust mag-mounts with the 80 MPH speed limits in my area, so I am looking for the best alternative that I can order on the internet, and mount without drilling holes, etc.. 73 DE Charles, N5PVL |
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eHam Forums / Mobile Ham / RE: Dual-Band antenna mount on full-size van?
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on: February 22, 2013, 07:05:59 PM
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The van has a noise-abatement package... That is, insulation and plastic panels cover the roof and sides, along with a thick mat on the deck. Working through or around all of that in order to drill holes, route coax etc. would be a real pain. If I had my druthers, there would be two holes drilled in the center-line of roof, one for 1/4 wave VHF, the other for 5/8 wave UHF... But that is not possible without the services of a professional installer, and I live far away from such, out in the desert/mountains of west Texas. Being a late model Ford van, the mirrors are plastic affairs, useless for mounting antennas. At this point, I am considering mounting something not too tall on the roof gutters, maybe something like that. I have to be able to go under a railroad bridge that has 10' 5" clearance, and the van is 3/4 ton. Here's couple of pics: http://s239.beta.photobucket.com/user/arwatch/media/FV06.jpg.htmlhttp://s239.beta.photobucket.com/user/arwatch/media/FV04.jpg.html73 DE Charles, N5PVL |
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eHam Forums / Mobile Ham / Dual-Band antenna mount on full-size van?
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on: February 17, 2013, 08:40:05 AM
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Am looking for suggestions for mounting a dualband VHF/UHF antenna on my full-size Ford e-250 van.
The van has a noise abatement package which would make punching a hole for a roof-mount antenna mount problematical.
What would be the next best antenna/mount combination, and where would it go?
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eHam Forums / Digital / RE: FCC's limitation on 300 baud for HF, why not let us use MIL-STD 110A at 9600 bps
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on: September 02, 2012, 05:47:32 AM
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Since it appears to be missing, I will inject a note of common sense, here.
Higher baud rates are a non-starter on HF because they also entail wider signals.
Wider signals may be a good idea on commercial or military spectrum that is channelized and tightly regulated. - On amateur radio's shared spectrum though, less regulated so that experimentation may occur, wider signals have not been found to be suitable for long-term or regular use.
Occasional experiments with wider signals by well-informed, responsible amateurs are unlikely to generate spectrum pollution - just as widespread use of wider signals by large numbers of uninformed, irresponsible amateurs is absolutely certain to generate spectrum pollution. - This point regularly shoots over the heads of supposedly clever wide-signal and spread-spectrum devotees whose IQ's take a sudden nose-dive when it comes to the basics of responsible, thoughtful operation within shared spectrum.
Duh.
73 DE Charles, N5PVL
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eHam Forums / Digital / RE: SIGNAL SATURATION WITH FLDIGI
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on: September 02, 2012, 05:35:53 AM
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The notch filter, if you have one, can be steered around the passband. It's a portable black hole that will swallow up anything it is placed over.
You get to see the entire passband - minus the offending signal.
On my TS-450sat, the notch control is very sensitive and must be turned very slowly. If I am careful though, I can park that notch right on top of some splattery, overdriven signal or maybe a WinLink Lid, thereby mitigating the interference that I experience from these clowns.
Try it, it works for me.
73 DE Charles, N5PVL
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eHam Forums / Digital / RE: ECHOLINK
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on: September 25, 2011, 08:34:54 AM
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I've just started using ECHOLINK to make it into a repeater that I sometimes can't reach by ordinary methods and have also been bouncing around to other nodes trying to see how well it works. Looking at the computer interface I can see that it has a real "retro" look, as if it were designed in the 1990's. I was wondering if there are any any add-ons or if anyone else had any insight into this. I have the feeling that it could be a whole lot better than it is and I'm wondering if I'm not missing something.
It's not ham radio. 73 DE Charles, N5PVL |
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eHam Forums / Digital / RE: ARRL Bulletin on 17 PSK31
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on: September 25, 2011, 08:33:59 AM
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I agree that it would be better if the ARRL acted more like hams.
Maybe they should get some hams in there, that would help.
73 DE Charles, N5PVL
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eHam Forums / Digital / RE: Maybe you're a lid if...
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on: July 21, 2011, 05:54:36 AM
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I wonder if we can program our pcs to lid for us?
SCS corporation sells the PACTORIII boxes that transmit 2.4khz digital hash with no ability to listen for existing QSOs on the frequency before transmitting. Anybody who operates this equipment on the ham bands is, by definition, a lid. Just take it out of the box - hook it up - and you are set to be an instant lid. - And there's a bonus! The longer you operate this equipment - and the more QSO's you trash out - the BIGGER lid you will get to be! All of the really big lids use SCS equipment, and so should you - if you want to be a lid. It's easy! - ANY idiot can do it! 73 DE Charles, N5PVL |
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eHam Forums / Digital / RE: ROS Users: Beware!
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on: July 17, 2010, 07:12:04 PM
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"Not only is Mr. Ros a megalomaniac but he does not have much imagination."
Are you saying that he is an ARRL executive, or is this behavior on his part just a coincidence?
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eHam Forums / Digital / RE: AMPRNet IP address
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on: July 01, 2010, 03:45:56 PM
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It's pretty much a lost cause, now drifting along on the last dregs of inertia. Not many ever did care about it, and now it's down pretty close to zero. May amateur TCPIP rest in peace. My best advice is: Let it go. 73 DE Charles Brabham, N5PVL Prefer to use radio for your amateur radio communications? - Stop by at HamRadioNet.Org ! http://www.hamradionet.org |
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eHam Forums / Digital / RE: AX25 Packet over WIFI freqs?
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on: June 04, 2010, 02:32:42 PM
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AA4PB touched on one of the things I am wondering about. I was wondering how difficult it may be to separate the Radio and modem sections of a WIFI device, so that an alternative modem's modulation ( or even analog voice ) could be transmitted and received over the resulting low-power 2.4gh transceiver. What I specifically had in mind is the homebrew Slovenian 1MB Packet modem. 73 DE Charles Brabham, N5PVL Prefer to use radio for your amateur radio communications? - Stop by at HamRadioNet.Org ! http://www.hamradionet.org |
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eHam Forums / Digital / AX25 Packet over WIFI freqs?
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on: June 02, 2010, 03:28:17 PM
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I am curious as to whether anybody has any experience running high speed AX25 Packet over the ham WIFI frequencies, utilizing regular WIFI equipment. NO IP whatsoever, just AX25 Packet. Would this be difficult to set up for? I'm interested in trying it out, but don't want to re-invent the wheel. 73 DE Charles Brabham, N5PVL Prefer to use radio for your amateur radio communications? - Stop by at HamRadioNet.Org ! http://www.hamradionet.org |
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eHam Forums / Digital / RE: OLIVIA
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on: January 24, 2010, 04:58:30 PM
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fldigi seems to do a great job, and it's free. Just do a web search for "fldigi"
73 DE Charles, N5PVL
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