If the crystals are the old WW2 crystals that are about an inch
square, the frequency is determined as follows:

If the Channel is a 2 digit number, divide the marked frequency by 54
to obtain the fundamental frequency:

Channel 32
Marked Frequency 32.2 Mc
Fundamental Frequency 32.2/54 = 429.630 MHz

If the Channel is a 3 digit number, divide the marked frequency by 72
to obtain the fundamental frequency:

Chhannel 381
Marked Frequency 38.1 Mc
Fundamental Frequency 38.1/72 = 529.166 MHz

Hope this helps and 73,

Henry WA0GOZ

Don't you mean KHz??

Henry wrote:

If the crystals are the old WW2 crystals that are about an inch
square, the frequency is determined as follows:

If the Channel is a 2 digit number, divide the marked frequency by 54
to obtain the fundamental frequency:

Channel 32
Marked Frequency 32.2 Mc
Fundamental Frequency 32.2/54 = 429.630 MHz

If the Channel is a 3 digit number, divide the marked frequency by 72
to obtain the fundamental frequency:

Chhannel 381
Marked Frequency 38.1 Mc
Fundamental Frequency 38.1/72 = 529.166 MHz

Hope this helps and 73,

Henry WA0GOZ


--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P

"Henry" wrote in message
. ..
If the crystals are the old WW2 crystals that are about an inch square,
the frequency is determined as follows:

If the Channel is a 2 digit number, divide the marked frequency by 54 to
obtain the fundamental frequency:

Channel 32
Marked Frequency 32.2 Mc
Fundamental Frequency 32.2/54 = 429.630 MHz

If the Channel is a 3 digit number, divide the marked frequency by 72 to
obtain the fundamental frequency:

Chhannel 381
Marked Frequency 38.1 Mc
Fundamental Frequency 38.1/72 = 529.166 MHz

Hope this helps and 73,

Henry WA0GOZ

It would help more if you separated your MHz from KHz. Those are all WW2
tank transmitter frequencies and were for 54 X and 72 X multiplications so
that it could be FM'd. The Army must have loved old Armstrong, they always
used FM even when the well understood capture effect kept killing off their
guys. Same reason the Air Force still can't talk to the ground pounder
unless they stick an AF guy with an AM rig with them on the ground. Sigh

W4ZCB

On Wed, 08 Feb 2006 01:03:19 GMT, **THE-RFI-EMI-GUY**
wrote:

Don't you mean KHz??

Nope. He meant Kc. These are WWII rocks that were marked in Mc.

Ah the good old days when when we had kilomegacycles per second.



Henry wrote:

If the crystals are the old WW2 crystals that are about an inch
square, the frequency is determined as follows:

If the Channel is a 2 digit number, divide the marked frequency by 54
to obtain the fundamental frequency:

Channel 32
Marked Frequency 32.2 Mc
Fundamental Frequency 32.2/54 = 429.630 MHz

If the Channel is a 3 digit number, divide the marked frequency by 72
to obtain the fundamental frequency:

Chhannel 381
Marked Frequency 38.1 Mc
Fundamental Frequency 38.1/72 = 529.166 MHz

Hope this helps and 73,

Henry WA0GOZ

I whoopsed. The resulting fundamental frequency I quoted should have
been in KHz or Kc back in those days. 38.1/72 = 0.5291666 Mc or
529.1666 Kc. and 23.2/54 = 0.4296296. In the first example, my
dyslexia got me so the numbers are wrong. Sorry.

Henry


Henry wrote:

If the crystals are the old WW2 crystals that are about an inch square,
the frequency is determined as follows:

If the Channel is a 2 digit number, divide the marked frequency by 54 to
obtain the fundamental frequency:

Channel 32
Marked Frequency 32.2 Mc
Fundamental Frequency 32.2/54 = 429.630 MHz

If the Channel is a 3 digit number, divide the marked frequency by 72 to
obtain the fundamental frequency:

Chhannel 381
Marked Frequency 38.1 Mc
Fundamental Frequency 38.1/72 = 529.166 MHz

Hope this helps and 73,

Henry WA0GOZ

On Wed, 08 Feb 2006 01:31:50 GMT, "Harold E. Johnson"
wrote:

[snip]

Same reason the Air Force still can't talk to the ground pounder
unless they stick an AF guy with an AM rig with them on the ground. Sigh

Nah. We had a surplus outfit here in Tucson that cut up old Air Force
planes at DMAFB (The Boneyard).

I bought a Collins KWM-1 from them that came out of a B-47. They were
using SSB a long time ago. I wish I had kept that radio as it might
have been very widely traveled.

Some of those planes were "special"... RB-47s. They were overflying
the Soviet Union before the U2s were.

I used to be a member of the Association of Old Crows. For more on
that see: (http://www.55srwa.org/55_crowstory.html). The author, Col.
Bruce Bailey also discussed some of these missions (and mischief) in
his book, "We See All", a Pictorial History of the 55th Strategic
Reconnaissance Wing. I happen to have an inscribed copy (no. 1474 of
1500) of the book.

Bruce has a lot more tales at http://www.55srwa.org/55_fhr1.html

Caution: Do not read any of his stuff with liquid in your mouth. It
will wind up all over your monitor.

Same reason the Air Force still can't talk to the ground pounder
unless they stick an AF guy with an AM rig with them on the ground. Sigh

Nah. We had a surplus outfit here in Tucson that cut up old Air Force
planes at DMAFB (The Boneyard).

I bought a Collins KWM-1 from them that came out of a B-47. They were
using SSB a long time ago. I wish I had kept that radio as it might
have been very widely traveled.

Yes Wes, and SSB IS AM. If you were an Old Crow, you still are. By any
chance know Duke Knief?

Was out to Davis Monthan last year, all those single flight C-141's was
sickening. From the factory to the boneyard just to protect some
congressmans turf.

W4ZCB

On Wed, 08 Feb 2006 03:56:44 GMT, "Harold E. Johnson"
wrote:

Same reason the Air Force still can't talk to the ground pounder
unless they stick an AF guy with an AM rig with them on the ground. Sigh

Nah. We had a surplus outfit here in Tucson that cut up old Air Force
planes at DMAFB (The Boneyard).

I bought a Collins KWM-1 from them that came out of a B-47. They were
using SSB a long time ago. I wish I had kept that radio as it might
have been very widely traveled.

Yes Wes, and SSB IS AM.

Technically, yes; so is on-off keyed CW by that definition. I was
thinking of SCR-522s on two-meters. [g]

If you were an Old Crow, you still are. By any
chance know Duke Knief?

No, don't know him. I was an "industry" Crow. To my regret I was
never in the military although I would have been had a Navy recruiter
not lied to me about my enlistment. But I guess that's a redundancy.

Most of the AOC meetings were lunchtime affairs and I felt guilty
leaving work for hours to go out to D-M for them so I quit paying my
dues and participating.

We did have one memorable dinner meeting where I met Col. Hambleton,
who was the guest speaker and protagonist in the book and movie, "Bat
21."

Was out to Davis Monthan last year, all those single flight C-141's was
sickening. From the factory to the boneyard just to protect some
congressmans turf.

Just think of it as a jobs program for engineers.

On Wed, 08 Feb 2006 03:56:44 GMT, "Harold E. Johnson"
wrote:

Same reason the Air Force still can't talk to the ground pounder
unless they stick an AF guy with an AM rig with them on the ground. Sigh

Nah. We had a surplus outfit here in Tucson that cut up old Air Force
planes at DMAFB (The Boneyard).

I bought a Collins KWM-1 from them that came out of a B-47. They were
using SSB a long time ago. I wish I had kept that radio as it might
have been very widely traveled.

Yes Wes, and SSB IS AM.

Technically, yes; so is on-off keyed CW by that definition. I was
thinking of SCR-522s on two-meters. [g]

If you were an Old Crow, you still are. By any
chance know Duke Knief?

No, don't know him. I was an "industry" Crow. To my regret I was
never in the military although I would have been had a Navy recruiter
not lied to me about my enlistment. But I guess that's a redundancy.

Most of the AOC meetings were lunchtime affairs and I felt guilty
leaving work for hours to go out to D-M for them so I quit paying my
dues and participating.

We did have one memorable dinner meeting where I met Col. Hambleton,
who was the guest speaker and protagonist in the book and movie, "Bat
21."

Was out to Davis Monthan last year, all those single flight C-141's was
sickening. From the factory to the boneyard just to protect some
congressmans turf.

Just think of it as a jobs program for engineers.

"Henry" wrote in message
. ..
If the crystals are the old WW2 crystals that are about an inch
square, the frequency is determined as follows:

If the Channel is a 2 digit number, divide the marked frequency by 54
to obtain the fundamental frequency:

Channel 32
Marked Frequency 32.2 Mc
Fundamental Frequency 32.2/54 = 429.630 MHz

The new math??? Perhaps 596.296 Kc




If the Channel is a 3 digit number, divide the marked frequency by 72
to obtain the fundamental frequency:

Chhannel 381
Marked Frequency 38.1 Mc
Fundamental Frequency 38.1/72 = 529.166 MHz


Ditto, but Kc
73, Steve, K9DCI


Hope this helps and 73,

Henry WA0GOZ