What is the difference between Yaesu FT 991 and ft991a? They also both possess a spectrum scope with an automatic scope control that's built right into the device. However, the only difference between these two devices is the real-time spectrum scope offered by the FT-991a. This allows you to view the location of the incoming signal on the band graphically.
Does Yaesu FT-991A have built in antenna tuner?
The built-in antenna tuner (for 160-6m) uses a LC switching network that features a 100 channel memory to reduce tuning time when changing frequency. The FT-991A comes standard with a ± 0.5 PPM high resolution DDS/PLL local oscillator to provide stability for demanding digital modes.
What is IPO in ham radio?
When you turn it on, that means that the preamp is off. In general, just leave IPO off on the high bands (that is, leave the preamp on). During a contest on the low bands, turn it on to prevent overload (that is, turn the preamp off). Come to think of it, maybe it stands for "I Prevent Overload".
Where is the Yaesu 991A made?
M0XRZ Ham Member QRZ Page
Is the radio the FT-991 by Yaesu of Japan, made in Japan like the FT - 847, or is it "Outsourced, to PRC "CHINA" ? "QUOTE" : - The most expensive thing in life is experience" .
Is the FT-991A an SDR radio?
The entire project is open source with schematics and the BOM provided over on the GitHub, and excellent documentation is available on the project's Wiki. FT991A Converted into an SDR. Turning FT-991A to a REAL SDR: Embedding a SDR Panadapter INSIDE the radio, no extra wires!
Related guide for What Is The Difference Between Yaesu FT 991 And Ft991a?
When was the Yaesu FT-991A released?
The new FT-991A will be avaliable October 2016.
What is C4FM digital?
C4FM is a digital modulation for walkie-talkies that hobbyists prefer. It also has a relatively mature history of use in professional digital walkie-talkie applications.
How do you set squelch and RF gain?
Some truckers turn the squelch on a CB radio all the way off, turn the RF gain on a CB radio all the way on, then dial back the RF gain control until almost all the noise disappears. That eliminates the choppy signals that a squelched radio produces, but it still allows the distant signals to come in.
Is Yaesu going out of business?
Like the Alinco above, Yaesu has announced that they are discontinuing production of the popular Yaesu FT-450D general coverage transceiver due to “parts issues.” It's worth noting the venerable Yaesu FT-DX1200 recently met the same fate. To be clear: parts obsolescence happens in the best of times.
What is a Panadapter?
A panadapter is device that allows you to visually see the RF spectrum and waterfall being received by the ham radio. The setup involves connecting the IF output of the radio to the RTL-SDR, and putting in some settings into HDSDR.
What is Omnirig?
Omni-Rig is a COM-component for controlling the transceiver (or receiver) using the CAT. It is distributed as Freeware. Description files for transceivers are external (not embedded in the body of the executable), so each user can create its own ini file describing the CAT commands for a new radio.
What is the difference between C4FM and fusion?
System Fusion is a digital communications mode for voice and data, including pictures. It utilizes a customized, yet open, C4FM FDMA standard. C4FM stands for Continuous Four Level Frequency Modulation, which is a special type of 4FSK, which is used in conjunction with FDMA - Frequency Division Multiple Access.
What is the difference between C4FM and DMR?
With C4FM, it's just like analog, wherein your transmission is routed at the server/link level, unlike DMR, wherein TalkGroup can be defined on each transmission. Basic information displayed. With C4FM, the only information displayed on the radio screen is the callsign and (with radios that support GPS) the distance.
Is C4FM a fusion?
C4FM – FDMA (Frequency Division Multiple Access)
System Fusion is Yaesu's implementation of Digital Amateur Radio, utilizing C4FM 4-level FSK Technology to transmit digital voice and data over the Amateur radio bands.
Where should my RF gain be set?
The lowest RF gain setting only lets you hear other truckers who are very close. The highest setting will let you hear transmissions from the furthest distance that your CB is capable of. Many experts recommend leaving the RF gain at its highest notch.
Why does my CB have so much squelch?
If you've ever used a CB radio before, you'll know the white-noise sound that comes from the speaker as soon as you turn the radio on. Since this static background noise is constantly changing, you need a way to filter it out. This is exactly why your CB radio has a Squelch Control!
Is alinco still in business?
Alinco, one of the few remaining and independent Japanese manufacturers, is no more. The company itself isn't bankrupt (it's not that bad yet), but development and production seems to be a Chinese affair now. Alinco's latest VHF/UHF models are made by…. AnyTone.
Is Yaesu Japanese?
Yaesu, founded as Yaesu Musen Co., Ltd. (八重洲無線株式会社, Yaesu Musen Kabushiki-gaisha) in 1959 by a Japanese radio amateur Sako Hasegawa with call sign JA1MP in the Tokyo neighborhood of Yaesu, is a Japanese brand of commercial and amateur radio equipment.
What is a ship to shore radio?
Marine VHF radio is a worldwide system of two way radio transceivers on ships and watercraft used for bidirectional voice communication from ship-to-ship, ship-to-shore (for example with harbormasters), and in certain circumstances ship-to-aircraft.
What is SDR Panadapter?
A panadapter is a device that connects to a standard hardware radio and allows you to visually see the RF signals on a waterfall. Since SDR's run on the PC, they naturally have the ability to display a panadapter screen, and most software like SDR#, HDSDR and SDR-Console already provide this.