[ARC5] [External Sender] Re: AM BCB Frequencies
Bill Henderson
bill.henderson at ocdsb.ca
Tue Feb 15 15:30:33 EST 2022
yes, indeed - in the past I have serviced many with the 9/10 khz switch and
it's also present on my DX440 (ATS803)
- Bill H. / va3hwa
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02/15/22,
03:29:18 PM
On Tue, Feb 15, 2022 at 12:54 PM Christopher Bowne <aj1g at sbcglobal.net>
wrote:
> I believe the European AM BCB channel spacing is also nine kHz and most
> import vehicle radios can in setup mode select the channel increment of
> either nine or ten kHz
>
> Chris AJIG Stonington CT
>
> Sent from my iPhone
>
> On Feb 15, 2022, at 11:00, Dave Sublette <k4to.dave at gmail.com> wrote:
>
>
> I think they use 9 KHz in the Pacific and Far East.
>
> Dave, K4TO
>
> On Tue, Feb 15, 2022 at 10:57 AM K2GKK D C_Mac_ Macdonald <
> k2gkk at hotmail.com> wrote:
>
>> Do European BCB stations use 11 kHz separations?
>> I seem to remember that from my 4 years in Germany.
>>
>> 73 de Mac, K2GKK/5
>> Licensed 30 Nov 1953
>> Oklahoma City, OK
>> USAF (Retired) 61-81
>> FAA (Retired) 94-10
>>
>>
>> ------------------------------
>> *From:* arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> on
>> behalf of releazer at earthlink.net <releazer at earthlink.net>
>> *Sent:* Tuesday, February 15, 2022 07:13
>> *To:* arc5 at ix.netcom.com <arc5 at ix.netcom.com>; arc5 at mailman.qth.net <
>> arc5 at mailman.qth.net>
>> *Subject:* [ARC5] AM BCB Frequencies
>>
>> "In April 1925, the band was further expanded to 550-1500 khz, providing
>> 15 additional Class A frequencies. In June 1926, however, the Attorney
>> General issued an opinion that the Commerce Department, under the 1912 act,
>> had no power to regulate frequencies of stations, and a number of stations
>> moved to frequencies which they wished to use, regardless of interference
>> to other stations, even taking split channels (frequencies that were not
>> exact multiples of 10 khz). In 1927 the Congress enacted a new Radio Act,
>> creating the Federal Radio Commission, and gave it power to make frequency
>> assignments."
>>
>> So the 10 KHZ channel spacing was established Very Early, first by policy
>> and then by Law. Modern digital AM BCB receivers cannot even tune tighter
>> than 10 KHZ.
>>
>> Wayne
>> WB5WSV
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