Yaesu FT-4XR
FM DUAL BAND TRANSCEIVER
- Range: 136-174, 400-480MHz
- Antenna Connector: SMA
- Power Source: 12.6 VDC Nominal, Battery Operated Exclusively
REPORT SUMMARY
Regulatory Standard | CFR Title 47 FCC Rule part 15B § 15.109, 15.111, & 15.121 | |
Test Procedures | FCC Part 15.31, 15.33, 15.35 ANSI C63.4 – 2014 |
|
Operational Modes | Stopped at the Lowest, middle, and highest frequency of tuning range. In addition scanning all frequencies of tuning range |
|
Low: | 136.0, 400 MHz | |
Test Frequencies | Middle: | 154.0, 440 MHz |
High: | 174.0, 480 MHz | |
Scan: | 136.0 – 174.0, 400-480 MHz | |
Setup | For radiated test the ant terminal was connected to 50ft non radiating load through a 50 Ω coaxial cable |
|
For conducted test the ant terminal was connected to a EMI receiver through 50 Ω coaxial cable |
RADIATED SPURIOUS EMISSIONS
Rule Part No.: FCC Part 15 Subpart B
Requirements: FCC Part 15.109(a) Radiated Emission Limit
FCC Part 15.109(f) Radiated Emission Limit
For a receiver which employs terminals for the connection of an
external receiving antenna, the receiver shall be tested to demonstrate
compliance with the provisions of this section with an antenna
connected to the antenna terminals unless the antenna conducted
power is measured as specified in §15.111(a).
FCC Part 15.33(b)(3) Frequency range of radiated measurements
FCC Part 15.35(a) Measurement detector functions and bandwidths
ANSI C63.4 Methods of Measurement of Radio-Noise Emissions from
Low-Voltage Electrical and Electronic Equipment 9 kHz to 40 GHz
- 6.2 Operating conditions
§ 6.3 Arrangement of EUT - 8.3.1 Exploratory radiated emissions measurements
§ 8.3.2 Final radiated emission measurements
The scanner receiver spurious emissions are to be measured when the
receiver is in the scanning mode and repeated when the scanning is
stopped, all while the antenna terminals are terminated into a non-
radiating 50 Ω load.
YAESU MUSEN CO., LTD.
During the Orlando Hamcation, Gary Pearce and I walked around and spoke to some of the vendors and booth-holders at the show. This is the presentation... Read more
Alpha 4510A QRP TO QRO. Our Wattmeters can measure from 200 milliwatts to 5 kilowatts, from 160 meters to 6 meters with no slugs! They displa... Read more
CZC AG01 QST de W1AW ARRL Bulletin 1 ARLB001 >From ARRL Headquarters Newington CT January 4, 2016 To all radio amateurs SB QST ARL ARLB001 ARLB001... Read more
US Navy 1944 Training Video for Hand sending of Morse Code Read more
Read Full Article – Morse code tips optical zoom feature for new Asus phone : Read more
Recent Posts
Orlando Hamcation Walk-n-Talk – Ham Radio 2.0
Alpha 4510A 3KW Wattmeter with 160M to 6M coverage
W1AW 2016 Winter Operating Schedule
US Navy 1944 Training Video for Hand sending of Morse Code
Morse code tips optical zoom feature for new Asus phone
A group of Portuguese amateur radio enthusiasts are spending their own vacation time trying to identify the location of a series of GPS buoy clusters... Read more
George and Tommy, from Amateur Logic review the IC-7610 with Ray Novak from Icom. During their review they discuss the radio’s key features and... Read more
DATE: June 06-07, 2020. STARTS 10.00 UTC SATURDAY – ENDS 09.59 UTC SUNDAY For amateur radio operators worldwide, social distancing is not an iss... Read more
Radio amateurs have succeeded in providing a complete, working ventilator system to University of Florida researchers who are in the process of applyi... Read more
Uniden SDS200 FCC PART 15B / RSS-135SCANNING RECEIVERCOMBO TEST REPORT Applicant UNIDEN AMERICA CORPORATION Address 3001 GATEWAY DRIVE SUITE 130 IRVIN... Read more
“After 5 years of operation of the antenna HexBeam I decided to remove the antenna from the chimney and put on a 10m mast in the garden. In the... Read more
Recent Posts
llegal GPS sea buoys on 10 meters Band ( 28 MHz )
IC-7610 Review with Amateur Logic and Icom’s Ray Novak
COVID-19 RADIO COMMUNICATION EVENT
Emergency Ventilator Designed and Constructed by Hams Going to FDA
Uniden SDS200
Arduino Antenna Rotator – DIY
Marcos Pontes Future Minister of Science and Technology, Lieutenant Colonel Marcos Pontes wants Brazil to join now. “The election is over, now w... Read more
Today we are checking out the NanoVNA-H4 analyzer. This little gem does a lot more than just SWR, so check out this video and other videos on YouTube... Read more
Operation in All Asian DX Contest (CW) All Asian DX Contest (CW) will be held according to the current rules. However, the Novel Coronal V... Read more
BaofengTech has released a model called the UV-5X3, which is a Triband HT, including the 220MHz band. Let’s take a look at this radio, see how t... Read more
ARRL continues to solicit paper logs of prominent DXpeditions or logs from stations and operators active from more rare locations from the 1950s throu... Read more
Recent Posts
Marcos Pontes PY0AEB – Future Minister of Science and Technology in Brazil
NanoVNA-H4 Network Analyzer, $86 Antenna Analyzer Review/Demo
The 62nd ALL ASIAN DX CONTEST – 2021
Unboxing and Testing the BaofengTech UV-5X3 Triband HT
ARRL Seeks Vintage DX Logs for Archive
Icom IC-T10 Rugged Dual Band HT This New VHF/UHF HT from Icom features a Very Rugged Design, 1500 mW of loud, clear speaker audio, 2400 mAH battery, I... Read more
Lido mounts are a great way to mount your radio in your mobile. Read more
Take your Ham Radio Portable with iPortable. A look at these really cool rack mount units for HF/VHF/UHF Ham Radio. Portable Pro2 Equipment Rack Syste... Read more
The Barrett 4075 high power HF Transmitter is a compact rack mounted communications solution developed for base station applications in large HF netwo... Read more
“Nestled deep in the Chequamegon-Nicolet National Forest in Northwest Wisconsin is the small town of Clam Lake. Clam Lake is best known for the... Read more
Looking at the Venus Technologies SW-3B QRP CW Transceiver for 20/30/40 meters. Dimensions: 104*71*25mm (excluding the protruding part such as kn... Read more
Recent Posts
Icom IC-T10 Rugged Dual Band HT @ HamVention
Lido Radio Mounts
iPortable Rack Systems | Ham Radio Rack Mounts
Barrett 4075 High Power HF Transmitter
The history of communicating with submarines underwater
Venus Technologies SW-3B QRP CW Transceiver Review