Hi Andy,
Yes, I agree about the panadapter dynamic range.
I measure the output by simply looking at the RF with a monitor scope,
the Elecraft P3 with TX monitor. I only tested CW, where the first dit
overshoots by about 12 percent (voltage), then decays slowly, over some
tens of milliseconds. At normal CW speeds, the output is stable until a
pause in transmission. QSK and PTT modes behave exactly the same way. My
KPA1500 doesn't seem to mind on CW, but it could lead to some splatter
on SSB.
73,
Scott K9MA
On 6/26/2021 5:26 PM, hb9cvq@hispeed.ch wrote:
Scott, very interesting , I own one myself (FTDX101MP Dec 2019),
latest FW/SW May 2021.
All agreed….
*6. Panadapter lacks averaging mode option*
Moreover 50 dB (10 div.) of RX dynamic (scope) range is not enough
for very big and small signals in the spectrum, K3S/P3 Elecraft is better.
*10. Output power still overshoots about 25 percent at 30 W (latest
firmware)*
**
How was this tested? CW/SSB? TX Power Attenuator (50Ohm) and fast
oscilloscope?
I have seen less overshoot. Did you do any statistical sampling?
Tnx, Cu, vy 73 de Andy
HB9CVQ, DK2VQ, AK4IG
https://www.qrz.com/db/HB9CVQ <https://www.qrz.com/db/HB9CVQ>
*From:* main@cwops.groups.io <main@cwops.groups.io> *On Behalf Of *K9MA
*Sent:* Samstag, 26. Juni 2021 21:24
*To:* CQ Contest <cq-contest@contesting.com>
*Subject:* [cwops] FTdx-1101MP Impressions
I've only had the radio a week or so, but I'm disappointed in it in
many respects. Now, I'm a CW contester, and I'm fussy, so many others
will probably not mind what I see as shortcomings. On the other hand,
a lot of these issues would concern any serious CW contester. There's
no question that the basic performance of the radio, like receiver
dynamic range and transmitter IMD, is excellent.
Here's my list:
1. Very loud relays in QSK with separate rx antenna (much quieter with
common tx/rx antenna)
2. Lack of per band power setting memory
3. AGC allows too much audio variation, no setting (this is strictly a
personal preference)
4. Clarifier with ring control far too sensitive, even with 5 Hz steps
5. CW Sideband changes when changing bands (?)
6. Panadapter lacks averaging mode option
7. Fan cycles rapidly in rx mode (better to run continuously at low speed)
8. No electret microphone bias setting (wiring required)
9. Roofing filters do not automatically switch when bandwidth is changed
10. Output power still overshoots about 25 percent at 30 W (latest
firmware)
****************
All of these, except the microphone bias, could be fixed in firmware.
And the microphone bias is no big deal, as a resistor and capacitor on
the mike connector takes care of it. Some of the others, like the
clacking relays, I can probably fix temporarily with minor hardware
modifications.
It would be nice if Yaesu DID listen to it's customers, or even paid
attention to what one of its competitors has done.
73,
Scott K9MA
--
Scott K9MA
k9ma@sdellington.us <mailto:k9ma@sdellington.us>
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