Showing posts with label Yaesu FT991 Adjusting the clock time. Show all posts
Showing posts with label Yaesu FT991 Adjusting the clock time. Show all posts

FT-991 versus TS-590

I have a TS-590 and now a new FT-991. I would appreciate any comments or discussion on reasons to keep the TS-590 or should I just go ahead and sell it. It seems that the FT-991 will do everything that my TS-590 did but I am always reading about how great the TS-590 are that I am concerned that after I sell it I will regret it.

I know that I should be able to compare the two rigs myself but I can't.

Any thoughts comments, pro and cons, etc. would be appreciated.

FT-991 Transceiver SWR meter on 2 and 440

My internal SWR meter is reading 1.5:1 on both 2m and 440
running 35 watts into a 50 OHM BIRD load connected DIRECTLY
to the VHF/UHF SO239 connector. Nothing wrong with this load!
Same thing with another BIRD 50 OHM load via a short coax cable.
SWR goes to zip when the power is reduced to 5-10 watts.
Using FM and RTTY modes to generate carrier.
160 thru 6 meter readings are fine.
Are the SWR meter readings valid on 2 and 440?
Royce - W3IF

FT-991 on ALC Interesting Observation

If you read the manual, the FT-991 wants you to adjust the microphone gain, so in SSB mode the ALC meter peaks about mid-scale… When I got my FT-991 a year ago, I removed the hand microphone within a 24 hour period after some on air testing, getting great reports with the hand mic but then I installed my spare MD-100 microphone.. Microphone gain still set at the default setting of 50 and did not look at the ALC meter setting the first days as I was focused on Power Out and SWR.... Set radio for 95 watts and away I went for the last 12 months… I think it was day 3 or 4 that I got to the part in the manual about setting ALC and Mic Gain, but it was very happy at a setting of 50 for the MD-100..

·        Today I was preparing to take my radio out to the back country to do some Astronomy work and some portable FT-991 work… So I pulled out the hand mike that was stored away a year ago and plugged it in..

·        I should mention that I never had HUM reports with theMD-100..


·        With all the talk about the ALC setting of late, I just happen to have the meter set to display ALC. Mic gain was STILL set to the factory default of 50…


·        When I transmitted into my dummy load I had a nice 95 watts but I than noticed that the ALC meter was peaking severely into the RED zone….


·        So I began to decrease the MIC gain, and to get the ALC to settle down into its sweet zone I had to reduce the MIC gain down to 13.. I checked all bands and everything was right on both ALC and power output…