27

It's a feature not a bug. When turned on, the weather alert function checks the local NOAA station for its alert tone every 5 seconds for half a second... doing so takes over the receiver. I'd turned it on, and forgotten I'd done so; and how that feature is implemented never registered in my mind. Turning it off solves my "problem." Thanks to ...


3

https://www.gpscentral.ca/manuals/Icom_IC-R8600_ENG_Manual.pdf Page 21 explains the difference between regular squelch and s-meter squelch on any Icom radio. Noise squelch The Noise Squelch allows the audio to be heard only while receiving a signal that includes less noise than a set level. Activates when the squelch level is set to between 30% and 50% in ...


2

To the best of my knowledge, both of your features are not implemented. You can choose either name or frequency in "channel mode" and assign a key to switch between channel and VFO mode.


2

Looks like it's just a fancy memory feature to let you quickly switch to a preset frequency and operating mode. https://www.k0pir.us/icom-band-stacking-register-and-memo-pad/ and https://www.manualslib.com/manual/965457/Icom-Ic-7600.html?page=38 . As the second URL mentions, it would be useful if you operate multiple modes in one band, so you can quickly ...


2

The green key appears to have the name "Func", even though I can't find that actually in any manual. You long press the green key, and then can trigger 0-9, and * and #. On my brand new 878, a long-press of the Menu key acts as the 'Function' button (not sure that's in the manual anywhere, either). The Green key (PF3) is assignable as all the other ...


1

I'm posting this answer —by someone else— below. I'm assuming that it's a good one. You CAN assign a button to switch between Name and Frequency. Menu/Settings/Radio Set/(choose key like PF3 Long Press)/Ch.Name — When pressed, it will alternate between Frequency and Name on the display. Per Thomas's comment, this required a firmware update to v. 1.21 to ...


1

FYI C4FM is not allowed below 29 Mhz. This is because it is a wide band modulation and uses more than the allowable bandwidth for HF band transmission. Straight FM is not allowed below 29 Mhz for the same reason.


1

I use my FT-891 with an MFJ 939Y auto tuner. When selecting TNR from the menus (I mapped the TNR function to one of the front panel A/B/C keys) holding TNR for over a second does drop the power to 5 watts carrier and the ATU does its thing. After the "ok" beep and green light on the tuner is on, the rig goes back to whatever mode and power setting ...


1

All answers above somewhat miss the point of the original question. Lowering the RF Gain does not magically improve the SNR of all signals, but it surely does for the medium and strong ones on SSB. Since a voice in SSB varies its instantaneous power a lot during transmission, if you set you RFG to max and put your AGC to fast, you'll notice strong noise in ...


1

My understanding of how RF gain works (or does in my own SDR design) is that RF/IF gain alters the gain BEFORE the AGC mechanism and the AF gain alters the gain AFTER the AGC. For a signal that is strong enough to activate the AGC, the AF gain sets the volume of the audio. With the AF gain set at a suitable level, lowering the RF/IF gain should reduce the ...


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