FCC ID: XYH-RDR2750V Digital Radio Base Station

Notes:

Complete User Manual at: RCACommunicationsSystems.com RDR2750 Digital Base Station Radio Communications Systems Whats Included:

Complete User Manual at: RCACommunicationsSystems.com QUICK START GUIDE RCA RDR2750 Base Station Overview www.rcacommunicationssystems.com products@rcacommunicationssystems.com

(877) 822-2915 Created in U.S.A. RCA and the RCA logo are trademarks used under license. For further information visit www.rca-brand.com. All other trademarks are the property of their respective owners. 2022 RCA Communications Systems. All rights reserved. P1 P2 CH+

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MENU OK BACK PTPT TT RDR2750 Base Station Radio ANB2750V/U Antenna PS2750 Power Supply MB2750KIT Mounting Bracket Screw Kit 1 2 Attaching / Removing the Antenna:

1. With the base station turned off, set the antenna in the antenna connector and turn clockwise to secure it. 2. To remove the antenna, turn the base station off and turn the antenna counterclockwise. P1 P2 CH+

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12 13 14 15 16 MENU OK BACK PTPT TT 3 4 5 6 7 1 2 LCD Display LED Indicators 3 Menu Button 4 Ok Button 5 6 Back Button Internal Microphone 7 8 9 10 11 12 Push-To-Talk Button 13 External Microphone Jack Internal Speaker 14 Power On / Off Switch P1 / P2 Buttons

(Programmable) Channel Up / Down Buttons Volume Up / Down Buttons Programming Cable Port 15 Power Supply Connector 16 Antenna Connector Note: The frequency band of your RDR2750 is marked on the radio label. If it is not visible, identify the frequency band according to the color code ring on the antenna:

red indicates UHF 400-

430 Mhz, orange indicates UHF 440-470 Mhz, purple indicates VHF 136-174 Mhz. Setting Up Your Base Station:

Connecting the Base Station to Power Outlet 1. Plug the adapters AC connector into the AC outlet socket. (see image A) 2. Plug the adapters DC connector into the DC socket on the back of the base station. (see image B) Image A Image B Turn On/Off the Base Station The base station can be turned On/Off by using the power switch. Note: There is no power up tone if the radio tones/alerts function is disabled. If your base station does not power up, check your connection to the power source. Make sure that power cord is properly attached. If your base station still does not power up, contact your RCA Communications Systems dealer. Adjusting the Volume Complete User Manual at: RCACommunicationsSystems.com All Alert Tones On/Off - Toggles all tones and alerts on or off Emergency On - Initiates an emergency alarm or call. Emergency Off - Cancels an emergency alarm or call. Nuisance Delete - Temporarily removes an unwanted channel, except for the Selected Channel, from the scan list. The Selected Channel refers to the users selected zone/channel combination from which scan is initiated. High/Low Transmit Power - Toggles transmit power level between high and low. Monitor On/Off - Monitors a selected channel for activity. One Touch Access - Directly initiates a predefined Private or Group Call, a Call Alert or a Quick Text message. Scan On/Off - Toggles scan on or off. Tight/Normal Squelch - Toggles squelch level between tight and normal squelch levels. Privacy On/Off - Toggles privacy (basic voice encryption) on or off. Lone Worker On/Off - Toggles Lone Worker feature On or Off, on per channel basis. Push-To-Talk (PTT) Button The PTT button on the side of the radio has two main functions:

Press and hold down PTT button to initiate and call and talk. Release the PTT button to listen. The microphone is activated when the PTT button is pressed. To increase the volume, press the ( VOL+ ) button. To decrease the volume, press the ( VOL-

button.

) If a call is in progress, the PTT button allows the radio to transmit to the other radios that are part of the call. Programmable Buttons Your RCA Communications Systems Dealer can program the programmable buttons as shortcuts to radio functions or preset channels/groups depending on the duration of a button press:

Short Press - Press and release quickly. Long Press - Press and hold for the programmed duration (between 1 seconds and 3.75 seconds). Note: If the Talk Permit Tone is enabled, wait until the short alert tone ends before talking. During a call, if the Channel Free Indication feature is enabled on your radio (programmed by your RCA Communications Systems Dealer), you will hear a short alert tone the moment the target radio

(the radio that is receiving your call) releases the PTT button, indicating the channel is free for you to respond. You will also hear the Channel Free Indication tone if your call is interrupted, for example when the radio receives an Emergency Call. The Programmable Functions are:

You can access various radio functions through one of the following ways: A short or long press of the relevant programmable buttons. All Alert Tones On/Off One Touch Access 4 One Touch Access 1 Or Emergency On Emergency Off One Touch Access 5 One Touch Access 2 1. To access the menu, press the MENU button. Press the appropriate P1 or P2 button to access the One Touch Access 6 One Touch Access 3 menu functions. Operational Status Indicators Your radio indicates its operational status through the following:

Display Icons Call Icons Sent Item Icons LED Indicator Audio Tones LED indicator LED Indication Blinking Red Solid Red Radio Status Radio is scanning, receiving an emergency transmission or has failed the self-test upon powering up. Radio is transmitting. Blinking Green Radio is powering up. Solid Green Radio is receiving or carrier is present/busy channel. Rapidly Blinking Green Radio is receiving a privacy-enabled call or data. Note: When the LED is solid green, it indicates the radio detects activity over the air. Due to the nature of the digital protocol, this activity may or may not affect the radios programmed channel. Audio Tones Complete User Manual at: RCACommunicationsSystems.com Display Icons The LCD display shows radio status, text entries, and menu entries. The following are icons that appear on the radios display. Received Signal Strength Indicator (RSSI) The number of bars displayed represents the radio signal strength and is only displayed while the radio is in receiving mode. Monitor Selected channel is being monitored. or Power Level Radio is set at Low power. Radio is set at High power. Tones Disable Radio tones are turned off. Scan Scan feature is enabled. Priority Scan Radio detects activity on channel/group designated as Priority 1

(if is blinking) or Priority 2 (if is steady) Unread Message The Radio has unread message(s) in the inbox. Inbox Full The radios Inbox is full. Emergency Radio is in Emergency mode. Encryption The Encryption feature is enabled. Talkaround Private Call The radio is currently configured for direct radio to radio communication. Indicates a Private Call in progress. In the Contacts list, it indicates a subscriber alias (name) or ID (number). Group Call / All Call Indicates a Group Call or All Call in progress. In the Contacts list, it indicates a group alias (name) or ID (number). Alert tones provide you with audible indications of the radios status or the radios response to data received. Sent Successfully The text message is sent successfully. Continuous Tone - A monotone sound. Sounds continuously until termination. Periodic Tone - Sounds periodically depending on the duration set by the radio. Send Failed The text message cannot be sent. Nuisance Delete Repeater/Talkaround Encryption On/Off High/Low Transmit Power Scan On/Off Lone Worker On/Off Monitor On/Off Tight/Normal Squelch 2. To select a function or enter a sub-menu, press the OK button. Repetitive Tone - A single tone that repeats itself until it is terminated by the user. In-Progress The text message to a group alias or ID is pending transmission. 3. To go back one menu level, or to return to the previous screen, press the BACK button. Note: Your radio automatically exits the menu after a period of inactivity and returns to your Home screen. Momentary Tone - Sounds only once for a short period of time defined by the radio. RF Exposure / Compliance Information FCC Compliance Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. ISED Compliance statement This device complies with ISED license-exempt RSS standard(s). Operation is subject to the following two conditions:

1. 2. this device may not cause interference, and this device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR dISED applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

1. 2. lappareil ne doit pas produire de brouillage, et lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den WARNING: Under ISED regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by ISED. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. The transmitter antenna gain shall not exceed 2.5 dBi. FRENCH: Conformment la rglementation dISED, le prsent metteur radio peut fonctionner avec une antenne dun type et dun gain maximal (ou infrieur) approuv pour lmetteur par ISED. Dans le but de rduire les risques de brouillage radiolectrique lintention des autres utilisateurs, il faut choisir le type dantenne et son gain de sorte que la puissance isotrope rayonne quivalente (p.i.r.e.) ne dpassepas lintensit ncessaire ltablissement dune communication satisfaisante. Please refer to the following websites for more information on what RF energy exposure is and how to control your exposure to assure compliance with established RF exposure limits. http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01904.html http://www.ic.gc.ca/eic/site/

ceb-bhst.nsf/eng/h_tt00080.html Important Safety Information Attention: This radio is restricted to Occupational use only. Before using the radio, read the RF Energy Exposures and Product Safety Guide for Land Mobile Two-Way Radios which contains important operating instructions for safe usage and RF energy awareness and control for Compliance with applicable standards and Regulations. www.RCACommunicationsSystems.com RF Energy Exposure Awareness and Control Information and Operational Instructions for Occupational Use NOTICE: This radio is intended for use in occupational/controlled conditions where users have full knowledge of their exposure and can exercise control over their exposure to meet the occupational limits in FCC and International standards. This radio device is NOT authorized for general population consumer use. EXPOSURE RF compliance et Lignes de contrle et Instructions oprationnelles Pour contrler votre exposition et assurer la conformit avec le milieu ambiant, il est toujours ncessaire de suivre les procdures suivies. Taliban:

On ne peut pas enlever le Label RF de ce dispositif. Lutilisateur doit utiliser le dispositif de rfrence pour les autres utilisateurs. Il ne faut pas utiliser cet appareil pour les besoins oprationnels. rcacommunicationssystems.com RF Exposure Compliance and Control Guidelines and Operating Instructions To control your exposure and ensure compliance with the occupational/controlled environment exposure limits always adhere to the following procedures. Guidelines:

Do not remove the RF Exposure Label from the device. User awareness instructions should accompany device when transferred to other users. Do not use this device if the operational requirements described herein are not met. Operating Instructions:

This equipment complies with FCC / ISED radiation exposure limits set forth for a controlled environment. This equipment should be installed and operated with minimum distance 25cm between the antenna and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the Push-To-Talk (PTT) button. To receive calls, release the PTT button. Transmitting 50% of the time, or less, is important because this radio generates measurable RF energy exposure only when transmitting (in terms of measuring for standards compliance). DO NOT hold the antenna when the radio is transmitting. DO NOT use any radio that has a damaged antenna. If a damaged antenna comes into contact with your skin, a minor burn can result. To ensure continued compliance with applicable RF exposure limits, use only RCA Communications Systems approved, supplied or replacement antennas, and accessories. For a list of RCA approved accessories please refer to your user manual or visit www. Description des oprations:

Lappareil est conforme aux limites dexposition aux rayonnements spcifies par la FCC/ ISED pour les environnements contrle. La distance entre le radiateur et le corps doit tre dau moins 25 cm lors de linstallation et du fonctionnement de lappareil. Cet metteur ne doit pas coexister ou fonctionner conjointement avec toute autre antenne ou metteur. La transmission ne dpasse pas 50% de la valeur nominale. Pour tlporter

(appel), appuyez sur le bouton Push To Talk (PTT). Pour recevoir un appel, libre le bouton du PTT. La rduction de 50 % du temps, ou moins, est importante, tant donn que cette radio a t expose la seule fois que la radioactivit de la radioactivit a t utilise en tant que mesure de conformit. NE TENEZ PAS lantenne entre vos doigts pendant que la radio met. NUTILISEZ PAS une radio portative, quelle quelle soit, dont lantenne est endommage. Si une antenne endommage entre en contact avec votre peau, il peut en rsulter une brlure lgre. Pour assurer la conformit continue avec les limites dexposition aux RF applicables, utilisez uniquement les antennes, et les accessoires de remplacement ou fournis et approuvs par RCA Communications Systems. Pour obtenir une liste des accessoires approuvs par Motorola Solutions, veuillez consulter votre manuel ou visitez le site www.rcacommunicationssystems.com. RCA and the RCA logo are trademarks used under license. For further information visit www.rca-brand.com. All other trademarks are the property of their respective owners. 2022 RCA Communications Systems. All rights reserved.

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RCA Communications Systems 555 W. Victoria Street Compton California United States Tel: 8778222915 Fax Number: 3175363718 Email: products@rcacommunicationssystems.com Attestation Letter Date: 08/18/2023 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 2.911(d)(5)(i) Filing FCC ID: XYH-RDR2750V RCA Communications Systems certifies that the equipment for which authorization is sought, is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature:

Ben Burns CEO CFR 47 2.911(d)(5)(i) Attestation Letter

RCA Communications Systems 555 W. Victoria Street Compton California United States Tel: 8778222915 Fax Number: 3175363718 Email: products@rcacommunicationssystems.com Attestation Letter Date: 08/18/2023 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 2.911(d)(5)(ii) Filing FCC ID: XYH-RDR2750V RCA Communications Systems certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Sincerely, Signature:

Ben Burns CEO CFR 47 2.911 (d)(5)(ii) Attestation Letter

RCA Communications Systems 555 W. Victoria Street Compton California United States Tel: 8778222915 Fax Number: 3175363718 Email: products@rcacommunicationssystems.com Attestation Letter Date: 2023-08-18 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 We, RCA Communications Systems Type of Equipment: Digital Radio Base Station Model number: RDR2750V FCC ID: XYH-RDR2750V The product, only support 136-174MHz, for the purpose of marketing, other frequencies has been shielded by software, the end user has no capability to activate it. The prototype supports 12.5KHz, 25kHz channel spacing, FCC only uses 12.5kHz, 25kHz is blocked by software, the end user has no capability to activate it. Sincerely Yours, Signature:

Ben Burns CEO

RCA Communications Systems 555 W. Victoria Street Compton California United States Tel: 8778222915 Fax Number: 3175363718 Email: products@rcacommunicationssystems.com Date: 2023-08-18 To:

FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Attestation statement regarding the Digital Portable Radio spectrum efficiency Type of Equipment: Digital Radio Base Station Model number: RDR2750V FCC ID: XYH-RDR2750V Dear Sir or Madam We, RCA Communications Systems declare that the time division multiple access

(TDMA) technology provides two paths in a 12.5 kHz channel bandwidth, thus meeting the one voice path per 6.25 kHz of spectrum requirement. This radio also provides data rate of 9600 bps in a 12.5 kHz channel, thus meeting the minimum data rate of 4800 bps in a 6.25 kHz channel. Please contact the undersigned if you have any questions or need any further information. Sincerely Yours, Signature:

Ben Burns CEO

RCA Communications Systems 555 W. Victoria Street Compton California United States Tel: 8778222915 Fax Number: 3175363718 Email: products@rcacommunicationssystems.com FCC Authorization Date: 2023-08-18 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern:

We, RCA Communications Systems, the undersigned, hereby authorizes China Certification ICT Co., Ltd (Dongguan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature:

Ben Burns CEO QA-FR-170-B 7/29/2014

RCA Communications Systems 555 W. Victoria Street Compton California United States Tel: 8778222915 Fax Number: 3175363718 Email: products@rcacommunicationssystems.com FCC Confidential Authorization Date: 2023-08-18 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: XYH-RDR2750V In accordance with Sections 0.457 and 0.459 of the Commissions Rules, RCA Communications Systems hereby requests long-term confidential treatment of information accompanying this application as outlined below:

Block Diagram Schematics Operation Description Part list/Tune up Procedure (for licensed device) As well as short-term confidential treatment of information accompanying this application for a period of 180 days after grant is issued as outlined below:

Internal Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature:

Ben Burns CEO

RCA Communications Systems 555 W. Victoria Street Compton California United States Tel: 8778222915 Fax Number: 3175363718 Email: products@rcacommunicationssystems.com Date: 2023-08-18 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Extended Frequencies Justification Dear Sir/Madam, The Radio with FCC ID: XYH-RDR2750V was designed to operate in the frequency bands 136-174MHz To aid equipment authorization in other countries which accept the United States FCC Grant for Certification, RCA Communications Systems is requesting that the FCC lists the frequencies 136-174MHz, under FCC Rule Part 90 on the FCC Grant. RCA Communications Systems attests that the radio will not be marketed to USA users with the frequency band which is not allowed by the rule part 90. Per the FCCs KDB634817 guidance, as an alternative to listing the exact frequencies, we acknowledge that its a violation of the FCC Rules if this device operates on unauthorized frequencies. Frequency Range (MHz) 136-150.8 150.8-152.855 152.855-154 154-156.2475 157.1875-157.45 157.45-161.575 161.775-161.9625 162.0375-173.2 173.2-173.4 173.4-174 FCC Rule Part For FEDERAL FCC Part 90 FCC Part 90 FCC Part 90 FCC Part 90 FCC Part 90 FCC Part 90 FCC Part 90 FCC Part 90 For FEDERAL Also, equipment programming is the responsibility of Authorized Service Personnel, the radio complies with 47 CFR Part 90.203(e), in that the operator cannot directly program the transmit frequencies using the normally accessible external controls. Sincerely Yours, Signature:

Ben Burns CEO

U.S. AGENT LETTER OF ATTESTATION Date: 2023-08-18 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 2.911(d)(7) Filing FCC ID: XYH-RDR2750V RCA Communications Systems certifies that, as of the date of the filing of the application, RCA Communications Systems is our designated U.S. agent for service of process for the above referenced FCC ID. RCA Communications Systems accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. RCA Communications Systems accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent and Applicant Information:

Name: RCA Communications Systems Address: 555 W. Victoria Street Compton California United States FRN: 0019356328 Tel.: 8778222915 Email: products@rcacommunicationssystems.com Signed by (printed name): Ben Burns Signature: