User Manual

OSMAC BaseOSMAC Base User Manual
Page 16
4.1.7 Voice Prompts
This mode selects whether beeps or voice prompts are used to confirm radio and phone operations with the
OSMAC BaseOSMAC Base.. The language of the voice prompts is determined by which firmware file has been loaded. If you
are interested in a language other than English, contact your distributor for availability.
4.1.8 Warmup Signal
If this mode is enabled, then a special "warmup" signal is transmitted for a brief period of time at the beginning
of each page. This is required for more reliable operation by some pagers.
4.1.9 Rings to Answer
The phone will be answered after the number of rings specified. Enter 0 to answer the phone immediately after
detection of a phone ring.
4.1.10 Transceiver Setup
The OSMAC BaseOSMAC Base either contains a two-way transceiver or works with an external transceiver. In either case, the
factory has programmed the correct Transmitter Type, Carrier Detect inversion, Transmit Data inversion, and
the TX Bandwidth. The user should not change these settings or improper operation will result.
4.1.11 TX/RX Switch Time
This parameter is used by the autopatch to determine the sampling time to listen for the mobile radio user when
transmitting the phone user's voice. If it is set too small, the mobile radio user will not be able to interrupt the
transmitter when in the autopatch mode. If it is set too large, then the transmitter's dropout time will be
excessive.
4.1.12 Transmit and Receive Frequencies
Enter the desired transmit or receive operating frequency using the number keys. The decimal point will
automatically be entered. Use the DEL key to delete any correct entries. Press the F1 or "-" key to accept the
new frequency.
4.1.13 Transmit and Receive Signaling
Carrier Squelch operation may be desirable if there are no other users on the channel and there is no
interference. In this mode, the two-way-radio users will be able to hear the paging signals transmitted by the
OSMAC BaseOSMAC Base. To enable this mode, press 1 to select (CARRIER ONLY). Press the "-" key to exit the menu.
If there are other users sharing the channel, if there is excessive interference, or if the two-way-radio users do
not want to hear the paging signals, then CTCSS operation should be used. In this mode, a low frequency tone
is transmitted along with the desired audio. The receiver will only be enabled if this tone is present at the
correct frequency.
To enable this mode, press 2 to select CTCSS, then use the arrow keys to select the desired tone frequency.
Press the "-" or F1 key to accept the frequency and exit the entry mode.
4.1.14 TX Data Delay
This parameter controls the delay between the time the transmitter is turned on and the start of the transmit
preamble for POCSAG pages. The delay is given in milliseconds.
4.1.15 Shift CPU Clock
In rare cases, the desired receive frequency may coincide with computer noise generated by the internal CPU.
This option enables the user to change the CPU's timing, which may shift the CPU's computer noise away from
the desired receive frequency.