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Dim display or white light break through
Hi, I have had two units with a dim display and one where the there is white light break through on the right hand edge, is? a replacment display the cure? what else could cause this? what does the
By Andrew Lenton · #42843 ·
Re: No power up
Hi I fixed over 5 units with this exact same fault, if the relay still clicks this is a good sign, the R2011 4R7 is a 1 Watt device 2512 SM resistor, it is a shame it is on the under side of the
By Andrew Lenton · #42842 ·
Re: 2 meter sideband audio
Ok thank you Allison for that explanation. 73 John Denison KD5YOU
By John Denison · #42841 ·
Re: 2 meter sideband audio
Most modern radios frequency error increases (multiplies) with operating frequency.? So a 10Hz error at 14mhz is likely to be not noticed at 50mhz its about 25hz at at 144? near 100hz. The dial is
By ajparent1/kb1gmx · #42840 ·
Re: 2 meter sideband audio
Ok thanks for the replies. Next time I'll try to fine tune the signal. Audio seems to be fine on HF bands so this is probably just a 2 meter issue that can be easily solved with finer tuning. 73 John
By John Denison · #42839 ·
Re: 2 meter sideband audio
Several things... For SSB 10hz is fine enough but at 100HZ not at all good. I've used manpacks and older radios and 100hz does not cut it unless both radios (both yours and the otherguys)
By ajparent1/kb1gmx · #42838 ·
Re: 2 meter sideband audio
You need to put the RF tuning step at, or below, 100 Hz. That will give you finer control of the "too-high / too-low" sound. I'm not sure how frequency-stable the IC-7000 is, but you shouldn't
By Charles VA7CPC Cohen <va7cpc@...> · #42837 ·
2 meter sideband audio
Today we set up a portable station with a 2 meter Diamond horizontal Yagi, and we made one contact with another station on 144.200. While both of us were on 144.200 USB, the other station's audio
By John Denison · #42836 ·
Re: Overheating - urban legend
My thermal camera contradicts what it says... ? We'll talk about it in 10 years' time. My IC7000 will probably still be alive. Me, on the other hand... The radiators I saw on the sides of the
By Ludovic Ludo · #42835 ·
Re: Overheating - urban legend
Sorry I missed it. Thank you [email protected]> wrote:
By Bob · #42834 ·
Re: Overheating - urban legend
Bob, you must not have read what came before. See: /g/ic7000/message/42827 It takes a bit of soldering skill and some fine wire. -- Allison
By ajparent1/kb1gmx · #42833 ·
Re: Overheating - urban legend
Allison and all, I've been wondering if the thermistor can be moved to make contact with either the heat sink or one of the final transistors thinking it would get hotter sooner and turn the fan on
By Bob · #42832 ·
Re: Overheating - urban legend
Initial position of thermistor was? roughly center of the edge of the board. I moved it (extended leads) to the area to one side of the finals where it seemed to get the hottest. I've seen more than
By ajparent1/kb1gmx · #42831 ·
Re: Overheating - urban legend
Excellent work, Allison. ?Thank you for sharing. I’m much happier with things since doing one of the published fan control mods (so that fan is enabled at a lower temperature). Personally, I
By Steve G4ALG · #42830 ·
Re: Overheating - urban legend
Where was the thermistor located before you moved it? Bob W4JFA [email protected]> wrote:
By Bob · #42829 ·
Re: Overheating - urban legend
Allison Thanks for the data. I have been lucky with my unit, now going on 15 years of admittedly, light duty. Seems like there may be ? ficant unit to unit variability. Maybe different brands of
By Kurt Sweeny · #42828 ·
Re: Overheating - urban legend
Data... from new the IC7000 ran 14-18C hotter than ambient (20C).? The hot spots aligned with thermal pads. Testing with a ditter on CW at half power netted a 30C climb in the hottest areas.? The
By ajparent1/kb1gmx · #42827 ·
Re: Overheating - urban legend
Ludovic Data , what a great idea! 73 Kurt KD6LZV
By Kurt Sweeny · #42826 ·
Overheating - urban legend
The top cover of the IC7000 is a heat sink. There's a reason it has thermal pads. Take a thermal camera and you'll see that the heating isn't that great after all. The modification with the fan
By Ludovic Ludo · #42825 ·
Re: Battery not essential for operation
Hello, the backup battery in the DSP module only stores the time... No need to replace one, it works fine without it. I've been using the IC7000 like this for years. It should not be left in place
By Ludovic Ludo · #42824 ·