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CW21668-2-1WModel 1668-2-1W, Rule Part 90.203(j)(8)

Rothenbuhler Engineering Company Inc
Model 1668-2-1W, Rule Part 90.203(j)(8) - FCC ID CW21668-2-1W - Rothenbuhler Engineering Company Inc
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Application Details

Equipment Class
TNB - Licensed Non-Broadcast Station Transmitter
Date of Grant
Feb 05, 2002
Application Purpose
Original Equipment
Date of Application
Feb 05, 2002
Equipment Note
Model 1668-2-1W, Rule Part 90.203(j)(8)
Frequency Range
150.00000000 - 174.00000000
Company
Rothenbuhler Engineering Company Inc
Country
United States

Documents & Files

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Users Manual

Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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Operational Description

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Parts List/Tune Up Info

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Schematics

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Test Report

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Cover Letter(s)

FCC ID: CW21668-2-1W Exhibit A Cover Letter Exhibit B FCC ID Label & Location on Radio Exhibit C External Photos Exhibit D Internal Photos Exhibit E Operational Description Exhibit F Technical Report Exhibit G Schematics Exhibit H User Manual Exhibit I Output Power Exhibit J Frequency Stability Exhibit K Transient Frequency Response Exhibit L Spurious RF Conducted Emissions Exhibit M Spurious Radiated Emissions Exhibit N Occupied Bandwidth Exhibit O Tune-up Procedure

Cover Letter(s)

Exhibit A: Cover Letter FCC ID: CW21668-2-1W Northwest EMC TCB Compliance Opinion Revision 01/31/02 ROTH0003 Information about the Client Company Name: Rothenbuhler Engineering Company, Inc. Address: PO Box 708, 2191 Rhodes Road City, State, Zip: Sedro Woolley, WA, 98284-0708 Test Requested By: Herb Hainey Job Number: ROTH0003 Equipment Under Test (EUT) EUT Model Number or Product Name: Remote Control Blasting Machine FCC ID: CW21668-2-1W Opinion Transient Frequency Behavior Specification Requirements Method Requirements Description Comments/Deviations FCC CFR 2.1055 FCC CFR 90.213 Transient Frequency Behavior Opinion: The Equipment meets the intent specified by the requirements listed above. Discussion: The manufacturer has attested that no modifications were made to the frequency determining circuitry of the radio module used in this family of products. The FCC previously approved this radio module. Engineering data was submitted by Herb Hainey, P.E, to support that this product has not changed and is still in compliance. The final compliance decision was based upon the fact that the FCC has already accepted the data. The engineering data is on file and available upon request. Reference: Test data from previously submitted product FCC ID: CW21668-1 has been included in Exhibit K. Northwest EMC TCB Compliance Opinion Revision 01/31/02 ROTH0003 Frequency Stability vs. Temperature Specification Requirements Method Requirements Description Comments/Deviations FCC CFR 2.1055 90.213 Frequency Stability Opinion: The Equipment meets the intent specified by the requirements listed above. Discussion: The manufacturer has attested that no modifications were made to the frequency determining circuitry of the radio module used in this family of products. The FCC previously approved this radio module. Engineering data was submitted by Herb Hainey, P.E, to support that this product has not changed and is still in compliance. The final compliance decision was based upon the fact that the FCC has already accepted the data. The engineering data is on file and available upon request. Reference: Test data from previously submitted product FCC ID: CW21668-1 has been included in Exhibit J. Frequency Stability vs. Input Power Specification Requirements Method Requirements Description Comments/Deviations 90.214 90.214 Frequency Stability Opinion: The Equipment meets the intent specified by the requirements listed above. Discussion: The manufacturer has attested that no modifications were made to the frequency determining circuitry of the radio module used in this family of products. The FCC previously approved this radio module. Engineering data was submitted by Herb Hainey, P.E, to support that this product has not changed and is still in compliance. The final compliance decision was based upon the fact that the FCC has already accepted the data. The engineering data is on file and available upon request. Reference: Test data from previously submitted product FCC ID: CW21668-1 has been included in Exhibit J. Operational Description Clarification Opinion: The Equipment meets the intent specified by the requirements listed above. Discussion: The operational description included as Exhibit E of the application, describes the RF module as having transmitter output power of .1 to 5 W. The manufacturer has attested that the output power of the RF module is set at the factory and cannot be changed by the user. Reference: Exhibit E Northwest EMC TCB Compliance Opinion Revision 01/31/02 ROTH0003 90.203(j)(3) efficiency exemption Opinion: The Equipment meets has been exempted from specified by the requirements listed above. Discussion: In an email from George Tannahill the FCC has allowed this product because of its low duty cycle to be granted. Reference: E-mail included. -----Original Message----- From: Engage Technology [mailto:[email protected]] Sent: Monday, January 03, 2000 11:12 AM To: Tom Jacobson Subject: Fw: ? -Reply -Reply -----Original Message----- From: George Tannahill <[email protected]> To: [email protected] <[email protected]> Date: Wednesday, June 17, 1998 5:23 AM Subject: Re: ? -Reply -Reply >Mark, > >Pursuant to 90.203(j)(8) we will allow the intermitant operation >described to be exempted from the 90.203(j)(3) efficiency standard. > >Sincerely, > >George Tannahill > >>>> "MarkR" <[email protected]> 06/16/98 04:24pm >>> >George, > >The normal operation would have perhaps 50 command / response >transmissions, consisting of 100 mS bursts over the period of 10 >minutes or so. > >This might happen once or twice per day, for an overall transmission >duty cycle of 8% during use, or less than 0.01% over a day. > >Mark... >---------- >> From: George Tannahill <[email protected]> >> To: [email protected] >> Subject: ? -Reply >> Date: Tuesday, June 16, 1998 11:39 AM >> >> Dear Mr. Roberts, >> >> Regarding question one of your E-mail, please specify exactly what the >> "extremely low duty cycle" is. Regarding question two, per 90.203(j)(2), a 25 KHz bandwidth would >> not be permitted. >> Northwest EMC TCB Compliance Opinion Revision 01/31/02 ROTH0003 >> Sincerely, >> >> George Tannahill >> >> >>> "MarkR" <[email protected]> 06/09/9810:38am >>> >> George Tannahill FCC >> >> Dear George: >> >> I sent this message to you last week in the form of a 'Word' document, and >> as I've had no reply, I figured it may have been miss-delivered... >> >> Paul Slavens at Acme Testing, in Washington state suggested I contact you. >> >> I am an independent RF consultant, working with a customer on an updated >> radio product, which will operate under Part 90, Subpart D, Industrial >> Radio Services, in the VHF band (i.e. 150 - 174 MHz), using F1D emissions. >> The old product was type accepted in 1992, but the OEM radio boards >> are no longer available, so all new products will be made with a new radio >> board from a different manufacturer, which I understand means we need a >> new acceptance test. >> >> …

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External Photos

Exhibit C: External Photos FCC ID: CW21668-2-1W

ID Label/Location Info

Exhibit B: FCC ID Label & Location on Radio FCC ID: CW21668-2-1W

Internal Photos

Exhibit D: Internal Photos FCC ID: CW21668-2-1W

Operational Description

Exhibit E: Operational Description FCC ID: CW21668-2-1W 5A204B-NB VHF Transceiver Module Technical Manual - Version RE2 January 10,2000 This device complies with Part 15 of the FCC regulations. Operation is subject to the condition that this device does not cause harmful interference. Changes or modifications to this device that are not expressly approved by Rothenbuhler Engineering are prohibited and could void the user’s warranty and possibly his authority to operate this product. TABLE OF CONTENTS 1. PRODUCT OVERVIEW 3 2. THEORY OF OPERATION AND CIRCUIT DESCRIPTION 3 2.1.SYNTHESIZER3 2.2.R EFERENCE OSCILLATOR3 2.3.A NTENNA INPUT3 2.4.R ECEIVER3 2.5.T RANSMITTER3 3. RADIO I/O CONNECTIONS 3 4. ALIGNMENT 4 4.1.TEST SETUP4 4.2.T RANSMITTER4 4.3.FCC N OTICE4 1. Product Overview This manual covers the 5A204-NB VHF transceiver module. The module is a synthesized 0.1 to 5 watt transceiver, covering the frequency band of 150-174MHz. It is designed for data communication systems. 2. Theory of Operation and Circuit Description 2.1. Synthesizer In transmit mode, Q12, D6 and L24 form a voltage controlled oscillator. In receive mode, Q7, D7 and L26 form a voltage controlled oscillator. The output of the VCO is buffered by Q11, and fed into the input of a programmable divider/phase comparator, U3. U3 divides the RF from the VCO down to either 10KHz or 12.4KHz, and compares this divided down signal to a reference. The reference is derived by dividing down a 14.4MHz crystal reference oscillator. A separate modem board programs U3 with the appropriate data for each radio frequency. 2.2. Reference oscillator Y4 along with Q8 and associated circuitry form a high- stability 14.4MHz reference oscillator. D5 provides DC modulation capability. D4, RT2 and RT1 form a temperature compensation circuit, adjusting the voltage on D4 as the temperature varies. 2.3. Antenna Input The RF I/O is via the ANT1 connection. This is an OSX female connector. L3, L2, C6, C7, and C8 form a 174MHz low-pass filter. In receive mode, RF from the low-pass filter passes through L1 and into the receiver front end. In the transmit mode, the 7.5V is applied to L10, which biases on D2 and D3. When these diodes conduct, D1 passes the transmit signal out to the low-pass filter on the antenna. D3 shorts the transmit to ground at the receivers input, protecting the receiver’s LNA from damage. 2.4. Receiver In the receive mode, RF from the antenna enters the receiver’s front-end filter, comprised of L4, L5 and associated components. Q1 amplifies the RF 20dB. L6, L7, and L8 along with their associated components form a band-pass filter, tuned to the receiver’s frequency of operation. Q2 mixes the receiver’s RF from Q1 with a local oscillator signal from the PLL. The output of Q2 is tuned to 21.4MHz. Y1 and Y2 form a 4 pole crystal filter, provided the receiver with its selectivity. Q3 amplifies the 21.4MHz IF signal. The 21.4MHz signal is down-converted to 455kHz, and demodulated by U1. The RX output is an FM detected analog signal. 2.5. Transmitter The transmit modulation is applied to the VCO and to the reference crystal, providing flat FM modulation response from DC to 5kHz. The VCO’s output is amplified by Q11, Q10, Q4, Q5, and Q6, to a level of up to 5 watts of RF. The maximum power output is dependent upon the voltage applied to the B+ signal (pin 2 of the I/O connector) and power adjustment resistor R105. 3. Radio I/O Connections The interface to a radio transceiver circuit board is through a 14 pin single in-line connector. Table 1 lists the function of each pin. Pin #Function 1System ground 2B+ (usually 7.5V DC from the modem PCB) 3 +7.5V transmit, ±5%. 4 +5.0V receive, 0V transmit, ±5%.,. 5 +5.0V regulated input, ±5% 6Transmit modulation. 2.5V DC RX, 2.5V DC with 1.25V p-p (2.0 Khz deviation) data during transmit. 7Synthesizer lock detect. 8PLL enable signal. Latch enable signal for serial interface to PLL. 9PLL data signal. Data to PLL chip via three wire interface, pins 8,9, and 10. 10PLL clock signal. 11No connect 12RSSI output from radio. 13Receiver discriminator output from radio. 14No connect Table 1 4. Alignment This test procedure assumes that the transceiver module is part of a wireless modem and will be tested with a properly configured modem board. 4.1. Test Setup With both the modem PCB and the transceiver PCB must be removed from the enclosure to align them. Connect the two boards together with a ribbon cable, providing access to the adjustments on the transceiver board. Connect a 12.5V DC source to the DC input of the modem board (5 watt systems) or 7.2V DC (0.1 – 2.0 watt systems). Connect a service monitor to the RF I/O of the radio. 4.2. Transmitter Program the modem so that it is on the correct operating frequency or in the middle of the operating range. Refer to the proper technical manual for programming information. With the service monitor in the receive mode, key the transmitter. Adjust L25 (red) so that there is 4.0V DC on C97 (TP3). Adjust C91 to set the carrier on the center of the channel. At room temperature (20 deg C) the RF carrier should be set to 300 to 400 Hz above the desired channel frequency. Adjust C58, C60, C65 and C67 for maximum power output. Adjust the modem’s transmit deviation pot on the modem PCB for 2kHz deviation With the service monitor set to generate FM, modulate a carrier with a 1kHz tone and 2kHz deviation. Set the RF level to 1mV. Connect the SINAD meter to J1 pin 13. Program the modem so that the unit is on the correct operating frequency or in the middle of the operating frequency range. Adjust the RX VCO using L26 (Orange) so that there is 4.0V at C97 (TP3). Adjust L11 for a reading of 2.5VDC at pin 13 of J1. Adjust L4, L5, L6,L7,and L8 for best SINAD. Lower the RF generator’s source as the SINAD falls below 20dB, and readjust the inductors until the specified sensitivity is met. Typically, 12dB SINAD will be obtained around 0.7uV. 4.3. FCC Notice It is the responsibility of th…

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Parts List/Tune Up Info

Exhibit O: Tune-up Procedure FCC ID: CW21668-2-1W 5A204B-NB VHF Transceiver Module Technical Manual - Version RE2 January 10,2000 This device complies with Part 15 of the FCC regulations. Operation is subject to the condition that this device does not cause harmful interference. Changes or modifications to this device that are not expressly approved by Rothenbuhler Engineering are prohibited and could void the user’s warranty and possibly his authority to operate this product. TABLE OF CONTENTS 1. PRODUCT OVERVIEW 3 2. THEORY OF OPERATION AND CIRCUIT DESCRIPTION 3 2.1.SYNTHESIZER3 2.2.R EFERENCE OSCILLATOR3 2.3.A NTENNA INPUT3 2.4.R ECEIVER3 2.5.T RANSMITTER3 3. RADIO I/O CONNECTIONS 3 4. ALIGNMENT 4 4.1.TEST SETUP4 4.2.T RANSMITTER4 4.3.FCC N OTICE4 1. Product Overview This manual covers the 5A204-NB VHF transceiver module. The module is a synthesized 0.1 to 5 watt transceiver, covering the frequency band of 150-174MHz. It is designed for data communication systems. 2. Theory of Operation and Circuit Description 2.1. Synthesizer In transmit mode, Q12, D6 and L24 form a voltage controlled oscillator. In receive mode, Q7, D7 and L26 form a voltage controlled oscillator. The output of the VCO is buffered by Q11, and fed into the input of a programmable divider/phase comparator, U3. U3 divides the RF from the VCO down to either 10KHz or 12.4KHz, and compares this divided down signal to a reference. The reference is derived by dividing down a 14.4MHz crystal reference oscillator. A separate modem board programs U3 with the appropriate data for each radio frequency. 2.2. Reference oscillator Y4 along with Q8 and associated circuitry form a high- stability 14.4MHz reference oscillator. D5 provides DC modulation capability. D4, RT2 and RT1 form a temperature compensation circuit, adjusting the voltage on D4 as the temperature varies. 2.3. Antenna Input The RF I/O is via the ANT1 connection. This is an OSX female connector. L3, L2, C6, C7, and C8 form a 174MHz low-pass filter. In receive mode, RF from the low-pass filter passes through L1 and into the receiver front end. In the transmit mode, the 7.5V is applied to L10, which biases on D2 and D3. When these diodes conduct, D1 passes the transmit signal out to the low-pass filter on the antenna. D3 shorts the transmit to ground at the receivers input, protecting the receiver’s LNA from damage. 2.4. Receiver In the receive mode, RF from the antenna enters the receiver’s front-end filter, comprised of L4, L5 and associated components. Q1 amplifies the RF 20dB. L6, L7, and L8 along with their associated components form a band-pass filter, tuned to the receiver’s frequency of operation. Q2 mixes the receiver’s RF from Q1 with a local oscillator signal from the PLL. The output of Q2 is tuned to 21.4MHz. Y1 and Y2 form a 4 pole crystal filter, provided the receiver with its selectivity. Q3 amplifies the 21.4MHz IF signal. The 21.4MHz signal is down-converted to 455kHz, and demodulated by U1. The RX output is an FM detected analog signal. 2.5. Transmitter The transmit modulation is applied to the VCO and to the reference crystal, providing flat FM modulation response from DC to 5kHz. The VCO’s output is amplified by Q11, Q10, Q4, Q5, and Q6, to a level of up to 5 watts of RF. The maximum power output is dependent upon the voltage applied to the B+ signal (pin 2 of the I/O connector) and power adjustment resistor R105. 3. Radio I/O Connections The interface to a radio transceiver circuit board is through a 14 pin single in-line connector. Table 1 lists the function of each pin. Pin #Function 1System ground 2B+ (usually 7.5V DC from the modem PCB) 3 +7.5V transmit, ±5%. 4 +5.0V receive, 0V transmit, ±5%.,. 5 +5.0V regulated input, ±5% 6Transmit modulation. 2.5V DC RX, 2.5V DC with 1.25V p-p (2.0 Khz deviation) data during transmit. 7Synthesizer lock detect. 8PLL enable signal. Latch enable signal for serial interface to PLL. 9PLL data signal. Data to PLL chip via three wire interface, pins 8,9, and 10. 10PLL clock signal. 11No connect 12RSSI output from radio. 13Receiver discriminator output from radio. 14No connect Table 1 4. Alignment This test procedure assumes that the transceiver module is part of a wireless modem and will be tested with a properly configured modem board. 4.1. Test Setup With both the modem PCB and the transceiver PCB must be removed from the enclosure to align them. Connect the two boards together with a ribbon cable, providing access to the adjustments on the transceiver board. Connect a 12.5V DC source to the DC input of the modem board (5 watt systems) or 7.2V DC (0.1 – 2.0 watt systems). Connect a service monitor to the RF I/O of the radio. 4.2. Transmitter Program the modem so that it is on the correct operating frequency or in the middle of the operating range. Refer to the proper technical manual for programming information. With the service monitor in the receive mode, key the transmitter. Adjust L25 (red) so that there is 4.0V DC on C97 (TP3). Adjust C91 to set the carrier on the center of the channel. At room temperature (20 deg C) the RF carrier should be set to 300 to 400 Hz above the desired channel frequency. Adjust C58, C60, C65 and C67 for maximum power output. Adjust the modem’s transmit deviation pot on the modem PCB for 2kHz deviation With the service monitor set to generate FM, modulate a carrier with a 1kHz tone and 2kHz deviation. Set the RF level to 1mV. Connect the SINAD meter to J1 pin 13. Program the modem so that the unit is on the correct operating frequency or in the middle of the operating frequency range. Adjust the RX VCO using L26 (Orange) so that there is 4.0V at C97 (TP3). Adjust L11 for a reading of 2.5VDC at pin 13 of J1. Adjust L4, L5, L6,L7,and L8 for best SINAD. Lower the RF generator’s source as the SINAD falls below 20dB, and readjust the inductors until the specified sensitivity is met. Typically, 12dB SINAD will be obtained around 0.7uV. 4.3. FCC Notice It is the responsibility of the user…

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Schematics

Exhibit G: Schematics FCC ID: CW21668-2-1W

Test Report

Exhibit F: Technical Report FCC ID: CW21668-2-1W FCC ID: CW21668-2-1W 01/18/02 Page 1 of 16 Partial reproduction of this document is prohibited without prior written consent of Rothenbuhler Engineering Rothenbuhler Engineering, PO Box 708, 2191 Rhodes Rd.,Sedro Woolley, WA 98284 FCC Part 90 Subpart I Report of Measurements January 17, 2002 Device: Remote Firing Device (Remote) Model: 1668-2-1W Manufacturer: Rothenbuhler Engineering Address: PO Box 708 2191 Rhodes Road Sedro Woolley, Wa 98284 The data in this report was collected on 3/1/01,3/21/01,3/26/01,12/13/01,12/14/01, 1/08/02 and compiled by Herb Hainey, PE FCC ID: CW21668-2-1W 01/18/02 Page 2 of 16 General Information Manufacturer Rothenbuhler Engineering Inc. PO Box 708 2191 Rhodes Road Sedro Wooley WA 98284 Ph: 360 856-0836 Fax: 360 856-2183 E-mail: [email protected] Test Locations Acme Testing Inc. (an A2LA Accredited Testing Facility) 2002 Valley Highway PO Box 3 Acme WA 98220-0003 Test Sites 1 and 2 Ph: 888 226-3837 Fax: 360 595-2722 E-mail: [email protected] Test Personnel: Daniel B. Staton, Senior EMC Technician Rothenbuhler Engineering Inc. PO Box 708 2192 Rhodes Road Sedro Wooley, WA 98284 Ph: 360 856-0836 Fax: 360 856-2183 E-mail: [email protected] Test Personnel: Herb Hainey, PE FCC ID: CW21668-2-1W 01/18/02 Page 3 of 16 Table of Contents General Information ..............................................................................................2 Table of Contents..................................................................................................3 Test Results Summary..........................................................................................4 Description of Device ............................................................................................5 Related Submittals/Grants ....................................................................................5 RF Power Output ..................................................................................................6 Modulation Characteristics....................................................................................7 Necessary Bandwidth ...........................................................................................8 Occupied Bandwidth .............................................................................................9 Spurious Emissions at Antenna Terminals.........................................................10 Field Strength of Spurious Radiation ..................................................................11 Frequency Stability .............................................................................................13 Transient Frequency Behavior ............................................................................14 RF Exposure Compliance Requirements............................................................15 Test Equipment...................................................................................................16 FCC ID: CW21668-2-1W 01/18/02 Page 4 of 16 Test Results Summary Summary of Test Results Remote Firing Device Tranceiver (Remote), model 1668-2 FCC ID CW21668-2-1W Section Description Site Used Result 2.1046 RF Power Output Acme Pass 2.1047 Modulation Characteristics Roth. Eng. Pass 2.1049 Occupied Bandwidth Acme Pass 2.1051 Spurious Emissions at Antenna Terminals Acme Pass 2.1053 Field Strength of Spurious Radiation Acme Pass 2.1055 Frequency Stability Roth. Eng. Pass FCC ID: CW21668-2-1W 01/18/02 Page 5 of 16 Description of Device Device: Remote Firing Device (Remote) Model Number: 1668-2 Serial Number: 145 Address: 52278 Frequency: 161.000 Mhz Firmware: Ver 1.4 Radio Module: 25900032 Power: Internal 7.5 Volt Battery Peripherals: None Cables: None Related Submittals/Grants CW21649 CW21662-1 CW21662-2 CW21668-1 CW21668-2 FCC ID: CW21668-2-1W 01/18/02 Page 6 of 16 RF Power Output Test Requirement Sec. 2.1046 RF Power Output Test Technical Standard Sec. 90.205 Test Procedure Test Results Manufacturer’s Nominal RF output power rating = 1.0 Watts (30.0 dbm) Measured RF output power = 30.59 dBm (1.15 Watts) at 151.000 Mhz 28.83 dBm (760 mW) at 170.000 Mhz The 1668-2 uses a monopole whip antenna with a measured gain of 0.88 = -0.55db relative to an isotropic source. Therefor the Effective Radiated Power is: Frequency (MHz) Transmitter Output (W) Effective Radiated Power (W) With 0.88 gain antenna 151 1.15 1.01 170 0.76 0.67 Nominal 1.00 0.88 See file Output Power.pdf Transmitter Under Test RF Power Meter FCC ID: CW21668-2-1W 01/18/02 Page 7 of 16 Modulation Characteristics Test Requirement Sec. 2.1047(d) Modulation Characteristics The emission designator “F2D” was selected based upon guidelines in CFR 47 sec. 2.201. The modulating signal is generated by a MAX604 modem chip. The audio tones used are 1300 Hz and 2100 Hz sine waves. These tones modulate the transmitter at a 1200 baud rate. Test Procedure Measure Peak Deviation on Service Monitor Test Results Modulation Characteristics Modulation Tone Deviation 1300 Hz 1.96 Khz 2100 Hz 1.96 Khz 1200 Baud Data (using 1300Hz/2100 Hz tones) 2.18 Khz Note: Since the transmitter uses modem generated tones of 1300 Hz and 2100 Hz only (and will never use anything else), with levels set at the factory for 2 KHz nominal deviation, no frequency versus modulation curves have been generated. Transmitter Under Test Service Monitor FCC ID: CW21668-2-1W 01/18/02 Page 8 of 16 Necessary Bandwidth The required bandwidth for 1200 baud data using 1300 Hz/2100 Hz @2Khz Deviation is 9.56 Khz. The emission designator would be 9K56F2D Paragraph 2.202 does not list F2D modulation. A calculation is provided to justify the 9.56 Khz necessary bandwidth See file: Necessary Bandwidth.pdf for complete formula and calculation. FCC ID: CW21668-2-1W 01/18/02 Page 9 of 16 Occupied Bandwidth Test Requirement Sec. 2.1049 Occupied Bandwidth Test Technical Standard Sec. 90.210 Emission Masks – Emission mask “D” …

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Test Report

Exhibit I: Output Power FCC ID: CW21668-2-1W NORTHWEST2 EMC Rev BETA 01/30/01 EUT: Remote Model 1668-2-1WWork Order: ROTH0999 Serial Number: 151Date: 01/08/02 Customer: Rothenbuhler EngineeringTemperature: 73 F Attendees: Herb HaineyTested by: Greg KiemelHumidity: 38% RH Customer Ref. No.: N/APower: N/AJob Site: SU03 TEST SPECIFICATIONS Specification: 47 CFR 2.1046 & 90.205Year: Most CurrentMethod: TIA/EIA-603Year: 1993 SAMPLE CALCULATIONS COMMENTS EUT OPERATING MODES DEVIATIONS FROM TEST STANDARD REQUIREMENTS RESULTSAMPLITUDE Pass SIGNATURE Tested By: DESCRIPTION OF TEST EMISSIONS DATA SHEET Output Power - Low & High Channels None Power Meter HP Model E4418A, Serial No. US38261571, Cal Due 4/9/02 No modulation. CW mode. Manufacturer's specification or 3 W; whichever is less 170.0028.83 dBm (760 mW) Frequency (MHz) 151.00 Power (dBm) 30.59 dBm (1.15 W)

Test Report

Exhibit J: Frequency Stability FCC ID: CW21668-2-1W Frequency Stability The Frequency Stability data that was approved by the FCC during the certification of CW21668- 1 is being referenced for this application. DATE OF ISSUANCE: 21 JANUARY 2000REPORT NUMBER: 990332FCC ID: CW21668-1PAGE 21 OF 30 9. Frequency Stability 9.1 Test Requirement Sec. 2.1055 Measurements required: Frequency stability. (a) The frequency stability shall be measured with variation of ambient temperature as follows: (1) From -30 deg. to +50 deg. centigrade for all equipment except that specified in paragraphs (a) (2) and (3) of this section. (b) Frequency measurements shall be made at the extremes of the specified temperature range and at intervals of not more than 10 deg. centigrade through the range. A period of time sufficient to stabilize all of the components of the oscillator circuit at each temperature level shall be allowed prior to frequency measurement. The short term transient effects on the frequency of the transmitter due to keying (except for broadcast transmitters) and any heating element cycling normally occurring at each ambient temperature level also shall be shown. Only the portion or portions of the transmitter containing the frequency determining and stabilizing circuitry need be subjected to the temperature variation test. (d) The frequency stability shall be measured with variation of primary supply voltage as follows: (1) Vary primary supply voltage from 85 to 115 percent of the nominal value for other than hand carried battery equipment. (2) For hand carried, battery powered equipment, reduce primary supply voltage to the battery operating end point, which shall be specified by the manufacturer. (3) The supply voltage shall be measured at the input to the cable normally provided with the equipment, or at the power supply terminals if cables are not normally provided. Effects on frequency of transmitter keying (except for broadcast transmitters) and any heating element cycling at the nominal supply voltage and at each extreme also shall be shown. DATE OF ISSUANCE: 21 JANUARY 2000REPORT NUMBER: 990332FCC ID: CW21668-1PAGE 22 OF 30 9.2 Test Technical Standard Sec. 90.213 Frequency stability (a) Unless noted elsewhere, transmitters used in the services governed by this part must have a minimum frequency stability as specified in the following table. Minimum Frequency Stability [Parts per million (ppm)] ------------------------------------------------------------------------ Mobile stations ------------------- Fixed and Over 2 2 watts Frequency range (MHz) base watts or less stations output output power power ------------------------------------------------------------------------ 150-174 5,11 5 6 5 4,6 50 ------------------------------------------------------------------------ 4 Stations operating in the 154.45 to 154.49 MHz or the 173.2 to 173.4 MHz bands must have a frequency stability of 5 ppm. 5 In the 150-174 MHz band, fixed and base stations with a 12.5 kHz channel bandwidth must have a frequency stability of 2.5 ppm. Fixed and base stations with a 6.25 kHz channel bandwidth must have a frequency stability of 1.0 ppm. 6 In the 150-174 MHz band, mobile stations designed to operate with a 12.5 kHz channel bandwidth or designed to operate on a frequency specifically designated for itinerant use or designed for low-power operation of two watts or less, must have a frequency stability of 5.0 ppm. Mobile stations designed to operate with a 6.25 kHz channel bandwidth must have a frequency stability of 2.0 ppm. 11 Paging transmitters operating on paging-only frequencies must operate with frequency stability of 5 ppm in the 150-174 MHz band and 2.5 ppm in the 421-512 MHz band. 9.3 Test Procedure TIA/EIA-603:1993 Section 2.2.1 DATE OF ISSUANCE: 21 JANUARY 2000REPORT NUMBER: 990332FCC ID: CW21668-1PAGE 23 OF 30 9.4 Test equipment Communication Analyzer: IFR COM 120A, Serial Number 485002436 9.5 Test Results Test run at nominal battery voltage of 12.0Vdc on 152.87 MHz. Temperature in deg C, Error in ppm -30-20-100102030405060 -2.90.63.74.84.92.90.9-0.8-1.9-2.1 Test run at LOW battery voltage of 11.0 Vdc on 152.87 MHz, Temperature in deg. C, Error in ppm -30-20-100102030405060 -4.00.83.64.74.82.70.8-1.0-2.0-2.3

Test Report

Exhibit K: Transient Frequency Response FCC ID: CW21668-2-1W Transient Frequency Response The Transient Frequency Response data that was approved by the FCC during the certification of CW2166…

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Contact Information

Applicant

Neal Rothenbuhler
[email protected]360 856-0836Fax: 360 856-2183

Technical Contact

Rothenbuhler EngineeringHerb Hainey
[email protected]360-856-0836

2191 Rhodes Road · Sedro Woolley, Washington · United States

Non-Technical Contact

Northwest EMC, Inc.Vicki Albertson
[email protected]503-844-4066

Test Firm

Northwest EMC, Inc.Greg Kiemel
[email protected]503-844-4066Fax: 503-844-3826

Technical Specifications

#Rule PartsFrequency RangePower OutputEmissionTolerance
190.210150 MHz - 174 MHz1.15 W9K56F2D5.0000000000 ppm
Grant Notes
This transmitter is only approved for mobile operation and must satisfy the requirements of Sec. 2.1091. The only antennas approved for use with this transmitter are those documented in this filing.

Other Applications from Rothenbuhler Engineering Company Inc

Carriage Control Transmitter used to remotely control a carriage used in high-lead logging operations - FCC ID CW21100-5 - Rothenbuhler Engineering Company Inc
CW21100-5

Carriage Control Transmitter used to remotely control a carriage used in high-lead logging operations

Feb 12, 2015

Equipment Class

TNB - Licensed Non-Broadcast Station Transmitter
REMOTE FIRING DEVICE - FCC ID CW21673-1 - Rothenbuhler Engineering Company Inc
CW21673-1

REMOTE FIRING DEVICE

Feb 26, 2014

Equipment Class

TNB - Licensed Non-Broadcast Station Transmitter
VHF CONTROLLER (TRANSCEIVER) - FCC ID CW21669-20 - Rothenbuhler Engineering Company Inc
CW21669-20

VHF CONTROLLER (TRANSCEIVER)

Mar 06, 2007

Equipment Class

TNB - Licensed Non-Broadcast Station Transmitter
150-174MHz REMOTE FIRING TEST BOX (TRANSCEIVER) - FCC ID CW21669-23 - Rothenbuhler Engineering Company Inc
CW21669-23

150-174MHz REMOTE FIRING TEST BOX (TRANSCEIVER)

Mar 06, 2007

Equipment Class

TNB - Licensed Non-Broadcast Station Transmitter
VHF CONTROLLER TRANSCEIVER - FCC ID CW21669-21 - Rothenbuhler Engineering Company Inc
CW21669-21

VHF CONTROLLER TRANSCEIVER

Feb 20, 2007

Equipment Class

TNB - Licensed Non-Broadcast Station Transmitter