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Great minds think alike, but that still does not explain how I came up with that observation.

If you get a 320, remember to ALWAYS move the 'frequency range' switch clockwise. You can destroy the switch by going counterclockwise. There is a PRC-320 site on groups.io that will have lots of info and links to the manuals.

Mdmorgan redid the entire interior with foam. they did some other modifications also. Their thread is probably 6 to 10 years old.

The 219 series was listed down the page a little, between the 218 and 220 series. I did not check to see if they had links to the manuals, because I have no use for them. It's up to you to inquire at the site to see if they actually have the manuals.

Because that's what they are!

have you looked at > http://survivalebooks.blogspot.com/2009/12/us-army-technical-manuals-series-5-page_02.html

From the contract number, it's a 1970 build. Last five numbers of the 'identification number' is the serial number on the frame.

Are you going to bet your life on it? If not, run your own ground!

The knuckle heads did not realize the bilge pumps only run when the engine is running.

In plain english, what G744 said is the AS3900 and antenna will cover a very wide spectrum of frequencies without any modifications. The MX6707 base requires the frequency range to be manually (or electronically if you have the control cable with the proper switch on the other end) set to the...

Grinding on the end is likely to damage more than it fixes. It's not 'just' a piece of metal. If I remember correctly the antennas are more like an array of different lengths (electrically) and the transmit signal goes up the path of least resistance. That 'least resistance' may still be a...

I have not had an operational CB in over 30 years! You are correct about the AS-3900, it is 'supposed to be' close enough for military use in the entire spectrum they are using. Modern US military radios use frequency hopping extensively as a security measure.

I have not dealt with the AS-3900 base, BUT, you should be able to put an SWR meter inline between the radio and the base and see if it can be adjusted for the frequency you are using. SWR - Standing Wave Ratio see this site for more information >...

Looks pretty clean to me!

Tire pressure on paved surfaces should be 50 psi.

Years ago there were rallies east of Ocala on an annual basis. I think COVID killed them.