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[Elecraft_K3] K3 Broadcast Band Filtering.
Of course today we do not know all the basics we have learned for the amateur radio test. But maybe you remember that the audio bandwidth for an AM signal is limited to the half of the IF filter bandw
Of course today we do not know all the basics we have learned for the amateur radio test. But maybe you remember that the audio bandwidth for an AM signal is limited to the half of the IF filter bandw
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Peter Sidler - HB9PJT
· #21895
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Falling Behind
Thank you Fred and thanks to Mark and Rob for the info. 178 confirmed is very nice, congratulation. 73, Peter - HB9PJT
Thank you Fred and thanks to Mark and Rob for the info. 178 confirmed is very nice, congratulation. 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #16513
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Falling Behind
Hi Fred/N0AZZ You write: "...in tough conditions KX3 can "Not" match the K3 nor should it the numbers don't tell it all the story in the real world." Can you please explain why exactly the KX3 does no
Hi Fred/N0AZZ You write: "...in tough conditions KX3 can "Not" match the K3 nor should it the numbers don't tell it all the story in the real world." Can you please explain why exactly the KX3 does no
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Peter Sidler - HB9PJT
· #16505
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KX3: Digital down converter? What roofing filters? RX bandpass filters?
I just have seen the youtube. But still not clear to me if is is a digital down converter like the Perseus or an analog down converter like a Felx-3000. Also not clear what baseband roofing filter mea
I just have seen the youtube. But still not clear to me if is is a digital down converter like the Perseus or an analog down converter like a Felx-3000. Also not clear what baseband roofing filter mea
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Peter Sidler - HB9PJT
· #10786
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Something *really* new at Dayton from Elecraft
Thank you Lyle for the info. That is an incredible rig! Hope to see it in Friedrichshafen. What date is planed for shipping? 73, Peter - HB9PJT
Thank you Lyle for the info. That is an incredible rig! Hope to see it in Friedrichshafen. What date is planed for shipping? 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #10768
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Something *really* new at Dayton from Elecraft
Is a tuner and the batteries built in? 73, Peter - HB9PJT
Is a tuner and the batteries built in? 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #10761
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I F rejection
From the Radcom review: "IF rejection exceeded 100dB. Image rejection was 100dB at low frequencies, dropping to 70dB at higher frequencies." 73, Peter - HB9PJT
From the Radcom review: "IF rejection exceeded 100dB. Image rejection was 100dB at low frequencies, dropping to 70dB at higher frequencies." 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #8576
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Power cuts back
That only make sense when the internal antenna tuner is switched off. 73, Peter - HB9PJT
That only make sense when the internal antenna tuner is switched off. 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #8017
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Rig comparisons?
When the very average IC-781 with 73 or 78 dB IMD3 @ 2 kHz is so much better than other "high perforamce rigs" then I begin to think if Robs table http://www.sherweng.com/table.html is sorted by the c
When the very average IC-781 with 73 or 78 dB IMD3 @ 2 kHz is so much better than other "high perforamce rigs" then I begin to think if Robs table http://www.sherweng.com/table.html is sorted by the c
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Peter Sidler - HB9PJT
· #7801
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Elecraft K3 or KW TS 2000X
The TS-2000 is a very universal transceiver. No other rig does all that. And the TS-2000 does that all very good. Now it is 9 years old but there is no other product on the market to compare. We use t
The TS-2000 is a very universal transceiver. No other rig does all that. And the TS-2000 does that all very good. Now it is 9 years old but there is no other product on the market to compare. We use t
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Peter Sidler - HB9PJT
· #7642
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Commands to set the TX Equalizer?
I have tried that software. It works very well and does exactly what I was looking for. Many thanks. 73, Peter - HB9PJT
I have tried that software. It works very well and does exactly what I was looking for. Many thanks. 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #6360
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Commands to set the TX Equalizer?
Hello and many thanks for all the info. For sure it is possible the solve my point with alle that info. 73, Peter - HB9PJT
Hello and many thanks for all the info. For sure it is possible the solve my point with alle that info. 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #6359
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Commands to set the TX Equalizer?
Because of two different mic's in use I would like to load the TX equalizer setting of the K3 from the PC by serial port. But I cannot find any info about the commands. Can anybudy tell me where I can
Because of two different mic's in use I would like to load the TX equalizer setting of the K3 from the PC by serial port. But I cannot find any info about the commands. Can anybudy tell me where I can
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Peter Sidler - HB9PJT
· #6352
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General question about THD Distortion in ham rigs vs Stereo receivers
Peter Hart's Radcom Reviews show inband intermodulation product numbers since many years. Also the numbers for AGC attack and decay time and information to agc overshooting if a rig does it. All that
Peter Hart's Radcom Reviews show inband intermodulation product numbers since many years. Also the numbers for AGC attack and decay time and information to agc overshooting if a rig does it. All that
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Peter Sidler - HB9PJT
· #6159
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K3 Internal AT vs External Autotuner
Wayne, does the internal antenna tuner switch the memories without transmitting when changing the band? Does the tuner have separate memories for two antennas? Thank you for your information. 73, Pete
Wayne, does the internal antenna tuner switch the memories without transmitting when changing the band? Does the tuner have separate memories for two antennas? Thank you for your information. 73, Pete
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Peter Sidler - HB9PJT
· #4610
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Rob Sherwood tests Perseus
When playing arround with different radios I noticed two effects: 1) SDR radios do have a better S/N when the signal is only a few dB higher than MDS compared to analog radios. 2) When the antenna sig
When playing arround with different radios I noticed two effects: 1) SDR radios do have a better S/N when the signal is only a few dB higher than MDS compared to analog radios. 2) When the antenna sig
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Peter Sidler - HB9PJT
· #3916
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Rob Sherwood tests Perseus
This is wrong: "Although the Perseus can be made as sensitive as the K3 by adding the third party preamp, doing so will also degrade its IMD DR - typically at three times the preamp gain." This is tru
This is wrong: "Although the Perseus can be made as sensitive as the K3 by adding the third party preamp, doing so will also degrade its IMD DR - typically at three times the preamp gain." This is tru
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Peter Sidler - HB9PJT
· #3870
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Oscillator stability
Jerry, from the specs: 0.5 ppm at 25°C only, that kind of specification is not very common. But it is 1 ppm between -10°C and +50°C. 73, Peter - HB9PJT
Jerry, from the specs: 0.5 ppm at 25°C only, that kind of specification is not very common. But it is 1 ppm between -10°C and +50°C. 73, Peter - HB9PJT
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Peter Sidler - HB9PJT
· #3639
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Oscillator stability
Gene, usualy the ppm specs are for the specified temerature range and not per degree. That means that 5 ppm would represent a frequency range of +/- 70 Hz for example from -10° to +50°. The FT-950 is
Gene, usualy the ppm specs are for the specified temerature range and not per degree. That means that 5 ppm would represent a frequency range of +/- 70 Hz for example from -10° to +50°. The FT-950 is
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Peter Sidler - HB9PJT
· #3632
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K3 Audio on receive
There is one reason to cut off the lows. When the AGC loop is not well designed it is oscillating in at a low frequency. Then it is wise to cut lows. Otherwise you would hear the oscillating in the he
There is one reason to cut off the lows. When the AGC loop is not well designed it is oscillating in at a low frequency. Then it is wise to cut lows. Otherwise you would hear the oscillating in the he
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Peter Sidler - HB9PJT
· #2861
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