Questions about crystal operated scanners.

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safetyobc

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I am fairly new to the scanning hobby, got into it a few years ago. I never owned a crystal programmed scanner. I see a lot of them on ebay going real cheap and was thinking of getting one just for my local PD/FD VHF-High freqs. Plus I think those vintage scanners look cool, check out one below. How do you get new crystals with the right freqs or can you program the crystals. Sorry if this is a dumb question, I have never dealt with crystals before.

Thanks for any help.
 

JMR3865

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crystals are hard to come by and are not programmable. Good luck, I wouldn't suggest it unless you can get the crystals
 

INDY72

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Two ways:

A: eBay, you can ask the sellers with those HUGE batches of crystals just what they have.
B: Ask on here in the wanted forums.. or in this forum specifically for various crystals!

And depending on the scanner you get.. they have two or thre way selectable switches inside for the crystals.. IE- UHF, VHF Hi, VHF Lo... This makes it simple. Remember.. there are NO crystals set for the newer narrow freqs such as 453.4125, and 155.6175... you will have to get the closest one to that freq.
 

safetyobc

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okay, thanks guys. I just like the looks of those old scanners. Maybe I'll step up a few years and get one that is programmable.
 

John_M

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Safteyobc, No programming of crystals. Each frequency you want to listen to will require a crystal "Oscillator" set at the frequency you want to listen to. When I used to buy crystals for a scanner I had about 25
years ago you could buy the crystals at $5.00 a pop. I don't know if you can get crystals any more.
 

JMR3865

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what crystals do you need, there is a place in florida that sells them. Maybe if you give us a list, we can help you out!
 

safetyobc

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Do the crystals just plung in and out? Or do you have to have some technical knowledge or equipment to change them?
 

Thunderbolt

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If you want high quality crystals, contact International Crystal Co. in Oklahoma City, OK, or Bomar Crystal in New Jersey. They will custom manufacturer any type of crystal that you desire. I am not sure if Radio Shack can order Bearcat scanner crystals anymore or not?

73's

Ron
 

John_M

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Safetyobc, Keep in mind there are eight channels in the radio you are looking at. Besides the cost of the scanner you have to buy the crystals which are around $7.00 apiece. That means the cost of the scanner + $56.00 and shipping costs. You can get a used Pro-95 for that money.
 

safetyobc

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JMedley_1 said:
Safetyobc, Keep in mind there are eight channels in the radio you are looking at. Besides the cost of the scanner you have to buy the crystals which are around $7.00 apiece. That means the cost of the scanner + $56.00 and shipping costs. You can get a used Pro-95 for that money.


That is true! I think I'll hold off. I was hoping it would be a fairly easy to get crystals and stuff. I'll probably pick up one of ther first generation programmables. Thanks guys for the info.
 

INDY72

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Heyy just get a PRO-83 if you have no need for trunking..... or grab a PRO-95, or even a 97.. then you get all the bells and whistles.... that tagging is very cool on the 95's etc.... Plus if there is ANY TRS's near you,.. you might really want that 95, or 97.. and your in Arkansas right... you may really want to save for a digiscanner seeing as how the State's system will upgrade........ And if your near the TX line... digital will be needed before too long to monitor TX DPS.... not to mention if your as close to the LA line as I think you are.... Remember the initial stages of LATIE are going to happen very soon! Soooo keep your ears open for an 700 MHz Digital capable trunker....
 

safetyobc

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Yep, already saving for the BCD396T, ASP is going digital as we speak. A couple of troops in N AR are already operating Digital now! Also, I do live near the LA line so I'll need the 700 band the 396 offers. I was just thinking that I could pick up a vintage scanner really cheap. But it seems it will cost more than I am willing to spend. I have a BC246T, which I love. I am just bored and looking for a new (old) toy to mess with.
 

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Voyager

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milf said:
Remember.. there are NO crystals set for the newer narrow freqs such as 453.4125, and 155.6175... you will have to get the closest one to that freq.

NOT TRUE :!:

I was at a hamfest yesterday (a great source of scanner crystals) and saw a few crystals for 453.6125 MHz. I would agree that SNFM frequencies such as 155.6175 MHz will be rare since those are rather new. Besides, unless you dedicate the scanner to all SNFM frequencies, you won't be able to compensate for the difference in audio levels (deviation). Another issue will be that you will likely receive interference on the VHF splinter channels from the adjacent channels.

Joe M.
 

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Actually {VB GRIN!} it wouldn't be all that bad an idea to pick up a good example of one of those `Olde Classics' while you can. I'd still plan on getting one of the new `programmable' scanners, too, if I were you. My reasoning is that as time passes getting both one that actually still works *and* getting the crystals will get progressively harder to do. Not only is `age' an `issue' but there is the `Roadshow Factor', so-called in reference to the PBS show "Antiques Roadshow" which basically is that as people start collecting something because it starts `coming up on the radar of collectors' both the availability starts dropping and the price starts climbing. (The corollary to this is... As the `interest increases and more are collected if it turns out that there are more out there than first suspected the price drops'. But, with the `age factor' being something that is a major factor with electronics and the components that make them up the corollary probably won't apply like it does for many other things.) Crystals will *definitely* go up in price especially if one is after *new* ones. Yeah, if one is willing to spend time searching through flea markets and hamswaps one *can* sometimes find great deals but, even then sometimes used crystals can bring near new prices if they are for `interesting' freqs. The real `call' that one has to make is, "Is this unit sufficently good condition-wise, are there enough still out there that I might be able to find another like or better than this, and will I be able to get another for this or a better price if I wait?" Luckily right now collecting old scanners is pretty much still in it's infancy and you've still got a fairly big window of opportunity to find an `interesting' example if you take and look around. Having said all that I'd still say that you'd best take and do a bit more serious looking around and keep on planning to get one of the new scanners. That one in the picture looks like it's had a pretty hard life and you most likley can find a better example if you look a bit. On top of that it is also better to actually be able to `fondle', so to speak, the unit rather than depend upon a picture and some faceless person online. Go to a few Flea Markets and HamSwaps instead and maybe after a while you might then consider online purchasing after you've gotten a bit more familiar with what's out there.

Just an `Olde Fart's' 2¢ worth and `rambling'! {VB GRIN!}
 

DaveH

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milf said:
Remember.. there are NO crystals set for the newer narrow freqs such as 453.4125, and 155.6175... you will have to get the closest one to that freq.

Milf, looks like you're a step behind. UHF frequencies on 12.5kHz steps have been around for a long time (they're sometimes called "splinter" frequencies). New UHF narrowband channels are on 6.25kHz steps e.g. 453.41875.

I used to order crystals from Jan Crystals in Ft. Myers FL and they were always good...still in business.

One caution, the old Bearcats used a 10.8MHz IF, which is different from the Radio Shack etc. ones of the day which used 10.7MHz. A crystal meant for one will come out on a different (read: wrong) frequency on the other.

Dave
 
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