569997

RadioShack PRO-90 - 300 Channel Manual

19
Zoom out
Zoom in
Previous page
1/64
Next page
19
UNDERSTANDING BANKS
Channel Storage Banks
To make it easier to identify and select the channels you
want to listen to, channels are divided into 10 banks of
30 channels each. Use each channel-storage bank to
group frequencies, such as the police department, fire
department, ambulance services, or aircraft (see “Guide
to the Action Bands” on Page 52). For example, the po-
lice department might use four frequencies, one for each
side of town. You could program the police frequencies
starting with Channel 1 (the first channel in bank 1) and
program the fire department frequencies starting with
Channel 31 (the first channel in bank 2).
Service Banks
The scanner is preprogrammed with the frequencies al-
located by police, fire/emergency, aircraft, marine, and
weather services. This is handy for quickly finding active
frequencies instead of searching through an entire band
(see “Scanning Service Banks” on Page 23).
UNDERSTANDING TRUNKING
In the past, groups that broadcast frequently, such as po-
lice departments, were restricted to transmitting on just a
few frequencies. This resulted in heavy traffic and often
required 2-way radio users to wait for a specific frequen-
cy to clear before transmitting.
Trunked systems allow more groups of 2-way radio users
to use fewer frequencies. Instead of selecting a specific
frequency to transmit on, a trunked system chooses one
of several frequencies when the 2-way radio user presses
PTT (push to talk). The system automatically transmits
the call on that frequency, and also sends a code that
identifies that 2-way radio user’s transmission on a data
channel.
This scanner lets you select the data channel frequency
that you want it to monitor, so you can hear both the call
and response transmissions for that 2-way radio user
and therefore follow the conversation. (You cannot listen
to the data channel itself).
20-520.fm Page 19 Wednesday, August 4, 1999 3:06 PM
… 19 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for RadioShack PRO-90 - 300 Channel at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of RadioShack PRO-90 - 300 Channel in the language / languages: English as an attachment in your email.

The manual is 1,06 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info