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I am making a supposition about the new crystal frequency. These are all 12-band radios which use a 15.360 MHz crystal (X2). In the 6-band radios such as some Galaxy's and the Voyage VR-9000, the X2 reference is originally a 14.010 MHz. To move them up, the factory recommended crystal...

Yes! I'm very well aware of how CB radios and their cousins are manufactured. In fact, my friend just bought a Voyage VR-9000, which was poorly aligned for SSB at the factory. Rather than try to align it himself, he just returned it to the dealer for a direct swap. The new one works...

Looks like either VE3EJ or VA3CCO contest stations.

His web site is still up. SP-1 Speech Processor

Nu? You too? :wink:

OK, OK!! You guys have convinced me! Sheesh! Such sticklers for accuracy and precision! :rolleyes: (Actually, I hope I can actually get the extra 440 KHz bandwidth out of it. In fact, all I really need is the extra 45 odd KHz, but that extra 300 KHz is a bonus for receiving purposes.)

Actually, we will be checking to make sure the VCO voltage is within tolerance. I'm not sure that a trimmer is required for the X2 reference, as there is none to begin with. Besides, we can net the frequencies as required with the coils, according to the manual. Nothing that any competent...

OK - let's get our definitions right, and I think we're both on the same page! What you call a "peak-and-tune", I call a "general alignment according to the manual". As for dd18's claim, I would dispute that, as that would mean uncalibrated (off-frequency) clarifiers and carrier...

To be honest, my experience is with older radios that had higher Q (such as 23-channel jobs). A lot of those radio's circuits were "stagger-tuned" to allow wider bandwidth. I'm going to assume that today's radios have lower "Q" in their circuits which already allows for wider bandwidth. I...

Really? All I'm doing is shifting the range up by 440 KHz. I would be doing that by simply changing bands, and we don't align the radio when changing bands. I'll check it out anyway... RX sensitivity and TX power anyway... just to be sure! :wink:

This type of problem is quite common in "consumer-type" equipment. What happens is that some component will age and drift off it's setting. Might be a resistor in the balance circuit or even the balance pot. Saw it a lot of this with older amateur gear too. A very easy fix.

Good, professional and experienced techs are hard to find. The few that are out there take time and pride in their work. I am a profession technologist myself, with 37 years in the business, (mostly land-mobile radio, but have done my share of CB and amateur too). Neither I nor any other...

I have been contemplating modifying my radios wiith the EPT6900XX chassis (General Grant, Superstar SS158EDX, RCI 69FFC2 etc.,) to allow full coverage to 29.700 on 10M. This small modification will simply shift the entire range from the original 24.265MHz - 29.655MHz up to 24.705MHz -...

I collect classic engineering texts, and read that one about 15 years ago. A superb text. I would also recommend John Kraus' "Antennas", a classic.

:thumbup:

If purchasing a base station, I would recommend the RCI Ranger 2995DX. It will do anything you need for 10/11M. If you already have an amateur license, or are seriously contemplating one, an amateur HF radio would fill the bill.

Right you are! My memory was defective. They were very popular back in 1994.

For CB use, I'd build it to 23', measure SWR and then start adjusting as required.

Should not be a problem. Just build it as described. If you have an SWR analyzer, use it to adjust the antenna to 11M. If not, use your SWR meter to bring it down to the frequency you desire (which I assume is 27.205, the middle of the CB band?). Just remember the longer the radiator, the...

I thought the radio in my picture was black face??? :confused1: Agree! And you get the Technician pert of the 10M band, for when you get your ham ticket. For anything other than strictly the CB band, SSB is the way to go.