ARLA/CLUSTER: ARRL vai novamente efectuar emissões em AM com o indicativo W1INF através de um emissor clássico, Gates BC-1T recuperado

[João Costa > CT1FBF]

 ARRL re-purposes AM broadcast transmitter for Ham Radio use

Thanks to a joint effort by ARRL and the Vintage Radio and Communications
Museum of Connecticut ( VRCMCT <https://www.vrcmct.org/>), a classic *Gates
BC-1T* AM broadcast transmitter will enjoy a second life on the Amateur
Radio bands for occasional use under *W1AW* or under the ARRL Headquarters
Operators Club call sign, *W1INF*.

Spearheaded by broadcast engineer Dan Thomas, NC1J, VRCMCT volunteers
restored the1-kW transmitter to operating condition, after obtaining it
from the National Capital Radio and Television Museum in Bowie, Maryland.
The VRCMCT will retain ownership of the transmitter, while the League
houses, and maintains it on loan. The transmitter will be located in the
ARRL Lab, and Assistant Lab Manager Bob Allison, WB1GCM, said the
transmitter could be on the air as W1AW during such operating events as the
AM Rally and the Heavy Metal Rally.

ARRL turned to AM guru and veteran broadcast engineer Tim “Timtron� Smith,
WA1HLR, of Skowhegan, Maine, to handle shifting the BC-1T from 1340 kHz to
the ham bands. Timtron not only has been an AM mainstay on 75 and 40 meters
over the years, he’s engineered all manner of AM, FM, and HF broadcast
transmitters in his extensive career. This combination of familiarity and
experience made him a logical choice to handle the conversion to amateur
use of the Gates BC-1T, which once transmitted country music from KPGE in
Page, Arizona.

While a shift from the higher end of the Standard Broadcast Band to 160
meters alone might seem rudimentary, various stipulations added a level of
complexity. First, the transmitter had to be modified as little as
possible, retaining original components. That ruled out completely
redesigning the circuitry. The 833 final amplifier tubes, better suited for
broadcast-band use, would be retained as would the inductance-heavy tuning
circuits. Another requirement — this one set by Smith — ambitiously called
for the transmitter to function on 75 as well as on 160 meters.

Read more here:
ARRL Repurposes AM Broadcast Transmitter for Ham Radio Use
<http://www.arrl.org/news/arrl-repurposes-am-broadcast-transmitter-for-ham-radio-use>
-------------- próxima parte ----------
Um anexo em HTML foi limpo...
URL: http://radio-amador.net/pipermail/cluster/attachments/20180309/92d347bb/attachment.html