[ARC5] RBA-1 - Field Change #3.

[Bill Cromwell]

Hi,

Ken made the same mistake I once did but he hit send and I noticed 
before I did that. On a mail list that covers VLF through 160 meters 
somebody made mention of a signal on 17 meters with an18xx frequency 
quoted, I overlooked where the decimal happened to be (18.xx) and was 
going to question but while I was reviewing just before hitting send I 
saw my error.

Yes there is a big difference between 500 Hz and 500 kHz. Ken might not 
have made that mistake if it was properly posted of 500 cps instead. No 
mistaking 500 cps for 500 kc <grin>

73,

Bill  KU8H


On 06/17/2015 12:34 PM, Mike Feher wrote:
> Yes, a mere "500 kHz" as you put it is a large change. However, 500 Hz is
> not, and, it is on the low band of the receiver's band selection. Even
> percentage of BW wise it is a nit. I have not looked at my RBA downstairs,
> but, I would not be surprised that it would already tune down 500 Hz below
> the 15 kHz bottom limit as it is, without CN-3. Remember, data rates at
> those frequencies were pretty slow due to the high Q at the transmitters, so
> modulation bandwidth did not take up much space. I really doubt that they
> were using 30 WPM down at 15 KHz. Just the rise and fall times of OOK at
> that rate would not be passed down there and all the characters would just
> blend together as they would be essentially integrated. 73 - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>