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Old 11-23-2007, 06:39 AM   #1
Richard Stouffer
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Default Question on Bumper Stickers

I want to have a sign on the back of my fiberglass motorhome that shows I'm monitoring 146.52. I only want it there when I'm actually monitoring the frequency.

Is there any type of material that will stay in place on fiberglass yet be removable like a magnetic sign. Of course I want to be able to put it on and take it off an infinite number of times.

Thanks
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Old 11-23-2007, 06:48 AM   #2
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IT seems at every hamfest there is a "cap and badge" vendor. These guys often make license plates as well. You could have a plate made that said 146.52 and attach that to your state issued license plate.

I'm thinking of doing this when my trailer gets here. Of course, when the trailer is on the road I will be on 146.52 so that would work for me.

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Old 11-23-2007, 09:15 AM   #3
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Well,,,, I use a 2nd radio to monitor 146.52 so I can use a fixed sign. However there are problems... I think the best option would be a LED sign, the sign would say "Monitoring" all the time and below it woudl be some LED digits, a 1 and a 4 (Fixed but switchable) and then an 7-segment 8, a dot and two more 7-segment 8's and optionally a (or another 7-segment 8)

That way you could turn it on/off as you wished. You could also do this with 146.52. Just lay it out using LED marker lights and dummy lights (Turn it on when on 52 and off otherwise (You use the dummy lights so that if it's off they see 888.88 and know it's off)
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Old 11-23-2007, 10:04 AM   #4
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OK, thanks.

I'm wondering if that would be kosher- having lights on the back of the unit other that brake, taillights, etc.
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Old 01-01-2008, 09:53 AM   #5
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I think the only requirement for lights on the rear of a vehicle is they can't be white.
I would avoind anything but red though.
velcro is a possibility, or suction cups on the window.
actually suction cups inside the rear window.If it falls off it doesnt go anywhere.
I suppose a sign that says TRY .52 would be meaningful to any ham..
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Old 01-01-2008, 01:38 PM   #6
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Here is my dilemma: I monitor the local repeater when I am in my home state. I monitor 146.52 when traveling but rarely call CQ. My friends expect me on the repeater and because simplex is limited to line-of-site this makes sense. So, I am going to put my call and monitor frequency on my bumper with magnets. Since I tow the Jeep with the MH I will have the current frequency displayed. Does this work for all of you?
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Old 01-02-2008, 07:38 AM   #7
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I think we need a changeable message sign, like they have on City Bus buses. This would be part-fixed part changeable

Mine, for example, would say:

WA8YXM
146.52 MHz

The numbers would be changable so I could put in 52.525 or 440.xx or whatever

Actually the best option is a 2nd radio, if you have a hand held, leave it on 146.52 (since anyone close enough to read the sign can hit the hand held no problem, even inside the ride)

Magnetic signs may or may not stick around.
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Old 01-03-2008, 01:18 PM   #8
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Default Some good ideas here.

I use a magnetic sign on the back bumper of my TT. But I really like the idea of a message sign that can be changed at will. Now to find one that is easy to mount and operate from a distance, your TV, and affordable. It also might be a good possibility for something custom made by oneself. Say your call and a switchable frequency readout. Its got to be something that looks right and not just thrown together. That would makes us look all a bit CB'ish.
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Old 01-04-2008, 07:23 AM   #9
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There are a couple of ways to do it, The KISS method involves a lot of wire so hit up your phone company for some multi-pair trunk cable or office cable You need at least 40 or 50 wires (25 pair) One pair is simply power and ground (you may need more than one ground or use a pair of heaver wires) This runs your call and provides ground. The others are wired up in 4-pair batches, (8 wires) one to each of a 7-segment display An 8 pole 11 throw switch at the operator position allows you to "Dial up" a frequency

Just lay out an 8-segment LED bar, Examples

Off52.525 is the Six meter calling frequency (the point is fixed)
146.52off for 2 mtrs

I'm not sure what the 440.xxx is


I also note that the last digit is either a 5 or off (so one wire is all you need) and the first is off, 1 or 4 so 2 wires works there, makes the switching easier too.

I suspect you figured out the 11th position on the switches, (off)

The high tech way is to send digital data down a wire pair, lots less copper, but lots more that can go wrong
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Old 07-04-2008, 02:08 PM   #10
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It's been some time now since the last post and wondering if anyone has figured out a way to display? Another idea might be to have a plate made similar to what Radio suggested and attach it up high on the ladder with either velcro or tie raps. Use (2) plates for (2) freqs. or (1) plate with both freqs.. I might try this and report back. Talking enroute would sure break up the trip a little.
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