[Boatanchors] Spark Gap

[Howard Holden]

According to a 1992 historical article in QST, in 1924, when the 80 40 20 
and 5 meter bands were allocated to Amateurs, spark was prohibited on them. 
The Radio Act of 1927 further banned spark from all Amateur use.

Can't locate actual wording about the ban of spark on Amateur frequencies, 
but for commercial interests, no new spark installations were allowed after 
1930, and spark was generally prohibited after 1940. Certain exceptions were 
allowed on a non-interference basis. This according to Sterling's Radio 
Manual, 1928.

Guess you'd have to really peruse the 1924-1927 QSTs to see actual dates of 
effectivity for Amateurs.

Howie WB2AWQ

-----Original Message----- 
From: Geoff
Sent: Sunday, July 08, 2012 5:35 PM
To: Mark K3MSB ; List Boatanchors
Subject: Re: [Boatanchors] Spark Gap

The Radio Act of 1927 maybe for ham gear. Ive also heard 1924.

Some spark was still on merchant ships until around 1940.

Carl
KM1H


----- Original Message ----- 
From: "Mark K3MSB" <mark.k3msb at gmail.com>
To: "List Boatanchors" <boatanchors at mailman.qth.net>
Sent: Sunday, July 08, 2012 5:47 PM
Subject: [Boatanchors] Spark Gap


> When was spark transmission made illegal?   Lot of info on the web about
> spark gap,  but I can't find anything about the date it was made illegal.
>
> Thanks
>
> Mark K3MSB
> ______________________________________________________________
> Boatanchors mailing list
> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Boatanchors at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1424 / Virus Database: 2437/5118 - Release Date: 07/08/12
>
______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net

List Administrator: Duane Fischer, W8DBF
** For Assistance: dfischer at usol.com **


This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html