ANDREWS DB-201 ANTENNA
Cutting chart at http://hamradiorepeater.info/web_site_repeater_014.htm. Simple to modifiy into ham bands.
Suggestions,Comments,Ideas
Cutting chart at http://hamradiorepeater.info/web_site_repeater_014.htm. Simple to modifiy into ham bands.
ARRL Responds to FCC’s Proposed Allocation for Medical in 70 cm Band:
Devices in ARRL General Counsel Chris Imlay, W3KD, on behalf of the ARRL, filed
comments on August 11 regarding a Notice of Proposed Rule Making (NPRM), ET
Docket 09-36, issued by the FCC in March 2009. Read more »
A New Ham’s Guide
How to Use Amateur (Ham Radio) Repeaters
Repeater Lookup
Repeater Terminology
autopatch — a device that interfaces a repeater to the telephone system to permit repeater users to make
telephone calls. Often just called a “patch.”
break — the word used to interrupt a conversation on a repeater only to indicate that there is an emergency.
carrier-operated relay (COR) — a device that causes the repeater to transmit in response to a received
signal.
channel — the pair of frequencies (input and output) used by a repeater.
closed repeater — a repeater whose access is limited to a select group (see open repeater).
control operator — the Amateur Radio operator who is designated to “control” the operation of the
repeater, as required by FCC regulations.
courtesy beep — an audible indication that a repeater user may go ahead and transmit.
coverage — the geographic area within which the repeater provides communications.
CTCSS — abbreviation for continuous tone-controlled squelch system, a series of subaudible tones that
some repeaters use to restrict access. (see closed repeater)
digipeater — a packet radio (digital) repeater.
DTMF — abbreviation for dual-tone multifrequency, the series of tones generated from a keypad
on a ham radio transceiver (or a regular telephone).
duplex or full duplex — a mode of communication in which a user transmits on one frequency
and receives on another frequency simultaneously (see half duplex).
duplexer — a device that allows the repeater transmitter and receiver to use the same antenna
simultaneously.
frequency coordinator — an individual or group responsible for assigning frequencies to new
repeaters without causing interference to existing repeaters.
full quieting — a received signal that contains no noise.
half duplex — a mode of communication in which a user transmits at one time and receives at
another time.
hand-held — a small, lightweight portable transceiver small enough to be carried easily; also
called HT (for Handie-Talkie, a Motorola trademark).
hang time — the short period following a transmission that allows others who want to access the
repeater a chance to do so; a courtesy beep sounds when the repeater is ready to accept another
transmission.
input frequency — the frequency of the repeater’s receiver (and your transceiver’s transmitter).
intermodulation distortion (IMD)— the unwanted mixing of two strong RF signals that causes
a signal to be transmitted on an unintended frequency.
key up — to turn on a repeater by transmitting on its input frequency.
machine — a repeater system.
magnetic mount or mag-mount — an antenna with a magnetic base that permits quick
installation and removal from a motor vehicle or other metal surface.
NiCd — a nickel-cadmium battery that may be recharged many times; often used to power
portable transceivers. Pronounced “NYE-cad.”
open repeater — a repeater whose access is not limited.
output frequency — the frequency of the repeater’s transmitter (and your transceiver’s
receiver).
over — a word used to indicate the end of a voice transmission.
Repeater Directory — an annual ARRL publication that lists repeaters in the US, Canada and
other areas.
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separation or split — the difference (in kHz) between a repeater’s transmitter and receiver
frequencies. Repeaters that use unusual separations, such as 1 MHz on 2 m, are sometimes said
to have “oddball splits.”
simplex — a mode of communication in which users transmit and receive on the same
frequency.
time-out — to cause the repeater or a repeater function to turn off because you have transmitted
for too long.
timer — a device that measures the length of each transmission and causes the repeater or a
repeater function to turn off after a transmission has exceeded a certain length.
tone pad — an array of 12 or 16 numbered keys that generate the standard telephone dual-tone
multifrequency (DTMF) dialing signals. Resembles a standard telephone keypad. (see
autopatch)
Schematics, layout and manual for ri-300e
http://www.hamradiorepeater.info/controller.htm
The XPRTM 8300 repeater is a continuous-duty unit that supports two simultaneous voice or data paths in digital TDMA mode. It mounts easily in wall or rack systems.
This repeater is part of the MOTOTRBO series, delivering increased capacity and spectrum efficiency, integrated data communications and enhanced voice communications through a complete solution.
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FR5000/FR6000 6.25 kHz Repeater
, in
addition to the IC‐F3161D, F5061D series radios. The “IDAS” system increases existing
12.5 kHz channel capability and offers easy migration from analog to digital. Read more »
Post suggestions and ideas for site:
BREAKING NEWS: NC HAMS WIN EXCLUSUION FROM MOBILE CELLPHONE BAN
North Carolina lawmakers are again considering a ban on cell phone use
while driving, but Amateur Radio operators in the state would be
specifically exempted, thanks to an amendment requested by Bob Conder
K4RLC, the ARRL State Government Liaison officer. Read more »