[Amps] Bandwidth tests

[Jan Erik Holm]

I just modulate the TX, i e speak into the microphone
for a minute or so.
Here you can see two examples of measurements, these
two radios was fully modulated with speech.
http://sk3w.shacknet.nu/sm2ekm/view_photo.php?set_albumName=SM2EKM-pictures&id=FT_1000D
http://sk3w.shacknet.nu/sm2ekm/view_photo.php?set_albumName=SM2EKM-pictures&id=KWM_2
We can see that the good old KWM-2 is quite a bit better then the FT-1000D,
in this respect I would say tecnology hasn´t moved forward.

This guy helps me sometimes.
http://sk3w.shacknet.nu/sm2ekm/view_photo.php?set_albumName=SM2EKM-pictures&id=P9290002

73 Jim SM2EKM
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Peter Chadwick wrote:
> Tom said:
> 
>>ALC testing requires a three-tone or pulsed two-tone or 
> 
> noise test at various pulse repetition rates. <
> 
> How about two very closely spaced tones - 10 or 20Hz apart? That should really exercise the ALC circuits - and the PSU effective output impedance.
> 73
> Peter G3RZP