http://systemfusion.yaesu.com/ft-991/
Showing posts with label Yaesu FT-991 Transceiver. Show all posts
Showing posts with label Yaesu FT-991 Transceiver. Show all posts
Yaesu FT-991 Two Tone Test
The following images depict the results of a two tone test I ran on
the repaired FT-991. The rear data port was used to inject the signal
from a PC running SpectrumLab. Tones where set to 1000Hz and 1575Hz respectively. The RF out of the Yaesu FT-991 was fed into the SM-220.
This image shows the transmitter flat topping, settings where 100W and ALC increased slightly to peak RF output (a few bars visible). The maximum output power achieved and observed on the external power meter was 90W (10% accuracy at full scale). Flat topping is a symptom of the PA being over-driven.
With reduced ALC, i.e. no visible ALC indication in fact one step
(click) below zero observable ALC and with the FT-991 set to 100W, the
following output was observed.
This image shows the transmitter flat topping, settings where 100W and ALC increased slightly to peak RF output (a few bars visible). The maximum output power achieved and observed on the external power meter was 90W (10% accuracy at full scale). Flat topping is a symptom of the PA being over-driven.
Yaesu FT-991 Programming the Memory Channels
Yaesu FT-991 - Programming the Memory Channels
Talks us through how to program and access the user memory channels of the Yaesu FT-991 transceiver.
Talks us through how to program and access the user memory channels of the Yaesu FT-991 transceiver.
Yaesu-FT-991 Memory Recall
[Yaesu-FT-991] Memory Recall
I'm sure I'm missing something in the manual. I have programmed some memories with no problem. When I try to recall a memory, I hit the MCH softkey and nothing happens when I turn the multi knob. I can see the list of memory channels, but I can't recall one. Otherwise, I'm really enjoying my new FT991.
When I have the normal Frequency and S-Meter up on the FT-991 TFT screen, I just hit the V/M button and the rig goes the the last memory channel I last used. Then just use the MULTI knob to scroll through the memory channels.
Press the M/V button to be in memory mode, MEM ## in upper left of touch screen. Touch the MCH touch key. Rotate the Multi knob and memories will scroll thru the frequency window, MEM # changing.
You cannot recall memories when screen shows the Grey memory list.
You cannot recall memories when screen shows the Grey memory list.
To recall memories you press the V/M button. To change from memory channel to memory channel, you press the MCH Icon on the screen, then rotate the MULTI knob.
USB Cable to the YAESU FT-991
When I plug in my USB Cable to the FT-991, the radio powers off
Cause/Symptom:
Radio powers off when USB cable is plugged in.
Solution:
Check your Power supply ground, The ring on the power supply ground post terminal may have come out or has gotten loose. It is getting ground from the USB connection which can cause radio failure.
Cause/Symptom:
Radio powers off when USB cable is plugged in.
Solution:
Check your Power supply ground, The ring on the power supply ground post terminal may have come out or has gotten loose. It is getting ground from the USB connection which can cause radio failure.
YAESU FT991 MARS modification
I did the MARS modification but the 6m, 2m & 70cm frequencies are not expanded
Cause/Symptom:
I did the MARS mod but the 6m, 2m & 70cm frequencies are not expanded.
Solution:
The MARS mod only opens the HF 160-10m bands.
Cause/Symptom:
I did the MARS mod but the 6m, 2m & 70cm frequencies are not expanded.
Solution:
The MARS mod only opens the HF 160-10m bands.
FT991 change the roofing filter
How do I change the roofing filter from 15kHz to 3kHz?
Cause/Symptom:
How do I change the roofing filter from 15kHz to 3kHz?
Solution:
The FT-991 roofing filter uses the 15 kHz filter on AM/FM/C4FM modes. All the other modes use the 3 KHz filter automatically. There is no manual selection possible.
Cause/Symptom:
How do I change the roofing filter from 15kHz to 3kHz?
Solution:
The FT-991 roofing filter uses the 15 kHz filter on AM/FM/C4FM modes. All the other modes use the 3 KHz filter automatically. There is no manual selection possible.
My FT-991 does not stop scanning
My FT-991 does not stop for 5 seconds when scanning
Cause/Symptom:
My FT-991 does not stop for 5 seconds when scanning
Solution:
The FT-991 does stop on the received signal when scanning, but you must first adjust the squelch to level 9.
There are 2 settings for scan, one is TIME and the other is PAUSE. If the radio is set for TIME, the FT-991 will stop on the received signal for 5 seconds and then resume scanning even if the signal is still present. If set for PAUSE, the FT-991 will stop and remain on the signal until it is no longer present.
Cause/Symptom:
My FT-991 does not stop for 5 seconds when scanning
Solution:
The FT-991 does stop on the received signal when scanning, but you must first adjust the squelch to level 9.
There are 2 settings for scan, one is TIME and the other is PAUSE. If the radio is set for TIME, the FT-991 will stop on the received signal for 5 seconds and then resume scanning even if the signal is still present. If set for PAUSE, the FT-991 will stop and remain on the signal until it is no longer present.
Setup Wires-x and YAESU FT-991 with HRI-200
Setup Wires-x and YAESU FT-991 with HRI-200
It is possible to connect to another node via RF but it will depend on your antenna, the other stations antenna, power out, distance, etc. Plus some nodes are not on the air 24/7.
The best way to use Wires-x is to buy another rig as a node rig, like the FTM-100d and a HRI-200, then connect to it using your FT-991 in wires-x mode, doing this you will be connected via the internet to the the Wires-x system and then you can connect to any active node anywhere. If you use C4FM rigs you can do this digital which gives you more functions and better audio.
The best way to use Wires-x is to buy another rig as a node rig, like the FTM-100d and a HRI-200, then connect to it using your FT-991 in wires-x mode, doing this you will be connected via the internet to the the Wires-x system and then you can connect to any active node anywhere. If you use C4FM rigs you can do this digital which gives you more functions and better audio.
Tech Video - FT-991 Digital Modes
Tech Video - FT-991 Digital Modes
http://www.youtube.com/watch?v=xPCwFNc3gyQ&sns=em
FT-991 Software Update and Version Identification
The latest versions are listed below with the release dates.
MAIN Software Version 02-02 (07/24/15)
DSP Software Version 01-04 (07/24/15)
TFT Software Version 02-01 (07/24/15)
*If you already have MAIN: Ver. 02-02, DSP: Ver. 01-04 and TFT: Ver. 02-01 software versions, it is not necessary to update the FT-991 again.
There are four different Software installations. Each one must be followed carefully. Installing the wrong type software may cause difficulties. Check your radio before installing software to be sure which updates are needed. Please read the FT-991 Firmware Upgrade Manual before proceeding.
If multiple software installations are required the MAIN software should be installed first, as it is the only one that requires a press and hold in the [F(M-LIST)] key while turning the radio back on. This resets the radio and locks in the new software.
Before installing new firmware, please verify your current version firmware with the following procedure:
MAIN Software Version 02-02 (07/24/15)
DSP Software Version 01-04 (07/24/15)
TFT Software Version 02-01 (07/24/15)
*If you already have MAIN: Ver. 02-02, DSP: Ver. 01-04 and TFT: Ver. 02-01 software versions, it is not necessary to update the FT-991 again.
There are four different Software installations. Each one must be followed carefully. Installing the wrong type software may cause difficulties. Check your radio before installing software to be sure which updates are needed. Please read the FT-991 Firmware Upgrade Manual before proceeding.
If multiple software installations are required the MAIN software should be installed first, as it is the only one that requires a press and hold in the [F(M-LIST)] key while turning the radio back on. This resets the radio and locks in the new software.
Before installing new firmware, please verify your current version firmware with the following procedure:
FT-991 Software Update and Version Identification
Yaesu FT-991 - SSB AM CW receiving around
Yaesu FT-991 - SSB AM CW receiving around
The new Yaesu FT-991 receiving in SSB, CW an AM, around on the band. AM reception is always done with a HF Yagi.
The new Yaesu FT-991 receiving in SSB, CW an AM, around on the band. AM reception is always done with a HF Yagi.
Yaesu FT-991 and Yaesu FTdx3000 side by side DNR test
Yaesu FT-991 and Yaesu FTdx3000 side by side DNR test
Test et comparaison du DNR entre le FT-991 et le FTdx3000
Test et comparaison du DNR entre le FT-991 et le FTdx3000
Yaesu FT-991 vs FTDX-5000MP - HF SSB Comparison
Both antennas are almost identical. Speaker on the FT-991 Transceiver is
the Yaesu MLS-200, the FTDX-5000MP is using its SM-5000 speakers. I
have tried to keep the width/DNR/IPO settings the same on both radios.
The FT-991 is brand new in the shack and because of the mixed reviews, I haven't even removed the plastic covers. So far, quite good. The lack of buttons means adjustment to DSP settings is more involved on the FT-991 compared with the FTDX-5000 and believe it or not, the internal ATU accepts a wider range of impedances on the '5000 too!
The FT-991 is brand new in the shack and because of the mixed reviews, I haven't even removed the plastic covers. So far, quite good. The lack of buttons means adjustment to DSP settings is more involved on the FT-991 compared with the FTDX-5000 and believe it or not, the internal ATU accepts a wider range of impedances on the '5000 too!
Yaesu FT-991
Yaesu's Newest Rig for 2015 FT-991
160 Meters through 70 Centimeters –
SSB/CW/FM/C4FM Digital/AM/RTTY/PSK
100 Watts
160 Meters through 70 Centimeters –
SSB/CW/FM/C4FM Digital/AM/RTTY/PSK
100 Watts
Promotion: Now through 12/31/15 - $100 mail-in rebate direct from Yaesu. USA & Canada Only.
DOWNLOAD HEREFT-991 100W HF/50 MHz, 50W VHF/UHF Compact Base Station Transceiver.
This New Generation All-Mode Transceiver is capable of operating SSB, CW, AM, FM, Packet and System Fusion C4FM Digital. The FT-991 is designed for the most competitive operating situations, with a suite of new features to enhance the experience. Whether you primarily operate at home, mobile or in the field, the FT-991 will provide outstanding fundamental performance plus give you easy access to the full range of exciting modes available on the ham bands today.
The FT-991 provides solid transmitter performance with up to 100 Watts on HF/50MHz and 50 Watts on 144/430 MHz. Recognizing an all-important Amateur Radio Golden Rule - “You cannot work them if you cannot hear them”– the FT 991 features a rugged state-of-the-art highly balanced receiver circuit configuration. The highspeed floating point DSP chip TMS320C6746 (3000 MIPS / 2250 MFLOPS) from Texas Instruments used in the receiver design guarantees excellent interference rejection with actual signals under real-world conditions, not only on HF but also in the VHF and UHF bands.
The 1st IF frequency is protected by selectable robust 3 kHz and 15 kHz roofing filters that effectively attenuate interfering signals. The triple conversion circuit structure allows highly flexible gain distribution at each stage. This proven receive design architecture enables elimination of unwanted signals through filters at each stage as well as optimized gain distribution.
DOWNLOAD HEREFT-991 100W HF/50 MHz, 50W VHF/UHF Compact Base Station Transceiver.
This New Generation All-Mode Transceiver is capable of operating SSB, CW, AM, FM, Packet and System Fusion C4FM Digital. The FT-991 is designed for the most competitive operating situations, with a suite of new features to enhance the experience. Whether you primarily operate at home, mobile or in the field, the FT-991 will provide outstanding fundamental performance plus give you easy access to the full range of exciting modes available on the ham bands today.
The FT-991 provides solid transmitter performance with up to 100 Watts on HF/50MHz and 50 Watts on 144/430 MHz. Recognizing an all-important Amateur Radio Golden Rule - “You cannot work them if you cannot hear them”– the FT 991 features a rugged state-of-the-art highly balanced receiver circuit configuration. The highspeed floating point DSP chip TMS320C6746 (3000 MIPS / 2250 MFLOPS) from Texas Instruments used in the receiver design guarantees excellent interference rejection with actual signals under real-world conditions, not only on HF but also in the VHF and UHF bands.
The 1st IF frequency is protected by selectable robust 3 kHz and 15 kHz roofing filters that effectively attenuate interfering signals. The triple conversion circuit structure allows highly flexible gain distribution at each stage. This proven receive design architecture enables elimination of unwanted signals through filters at each stage as well as optimized gain distribution.
Review of FT-991
As someone who OWNS the radio, I can say that overall Yaesu did a pretty good job on it, but missed a few features.
Yaesu-FT-991 : 5Mhz on the 991 MARS wideband mod
Yaesu-FT-991 : 5Mhz on the 991 MARS wideband mod
Frequency Expansion Information
This information is solely for use by licensed members of MARS (Military Affiliate Radio System) or CAP (Civil Air Patrol), and release to any other party is not authorized. Use of any Amateur Radio product outside of the Amateur band is at the users own risk, and no guarantee of compliance with specifications outside the Amateur bands is expressed or implied. The Limited Warranty does not cover damage caused by any attempt to modify an apparatus for out-of-Amateur-band operation, nor does the Limited Warranty cover damage to components that may result from out-of-Amateur- band use
Frequency Expansion Information
This information is solely for use by licensed members of MARS (Military Affiliate Radio System) or CAP (Civil Air Patrol), and release to any other party is not authorized. Use of any Amateur Radio product outside of the Amateur band is at the users own risk, and no guarantee of compliance with specifications outside the Amateur bands is expressed or implied. The Limited Warranty does not cover damage caused by any attempt to modify an apparatus for out-of-Amateur-band operation, nor does the Limited Warranty cover damage to components that may result from out-of-Amateur- band use
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