Good Evening,
Twenty meters was fairly quiet with light QSB. Forty meters had
some fast flutter with a thunderstorm in the distance. Signals were not
as strong as last week. Low noise levels helped.
Both bands had a lot of activity. There were multiple contests.
You could work
Based on personal experience and observations with another ham radio
brand and company, it is most often the case that power overshoot is
likely to occur when the transceiver is operated at reduced power.
Namely to drive a power amplifier. In general, tube amplifiers are
more tolerant than
One should / must turn the radio off using the POWER button on the radio
BEFORE shutting off the power supply. Otherwise said, never turn off
the power supply with the radio on. Why? There is a PDI {Power Down
Immanent} circuit that saves the current data configuration in the power
down
I've said this for years, even with tube type amplifiers. One
exception, to which I'm aware, is the Johnson Thunderbolt which uses a
variable L along with variable C for the input components to the Pi L
network. Otherwise, the Pi network input circuit is using a fixed
value of L and a
Totally in agreement with Keith. I observe slow ramp up of power on
the 1st transmission after making a band change or power change.
But I add; when measuring power, be sure the dummy load is actually 50
ohms non-reactive. Just because it says so on the label, is it? I
have 4 different
Thanks to stations assisting with relays.
Generally weak signals today.
WM6P STEVE GA K3S net control
AE6JV BILL RI K3
KB9JNZ ERIC IL FTDX101
K8NU CARL OH FTDX101
KC4CJ JAMES FL IC7300
KB9AVO PAUL IN K4
W4DML DOUG TN K3
KE8CJM DAN OH IC7300
WY3T TIM FL K3S
KB3FBR JOE PA K2
WB0SOX WES MO IC746
W3SA
Thank you all for the suggestions and encouragement. I am optimistic that it is
now fixed. I believe it was one of the TMP coax plugs that had a faulty
connection. But by shot gunning fixes I cannot pinpoint that specifically.
Below is the long story:
Earlier I had replaced the wattmeter
That's almost right. You cannot use a VGA cable with the Y-BOX or any
Elecraft radio because they almost always short too many pins to ground.or
to each other.
A straight 15 pin M/F (non-VGA) extension would have worked OK to extend
the Elecraft ACC cable. I supply these with the Y-BOX. I can
I must point out that N6TV's Serial and Y boxes can be configured to use
VGA cable between K2/K3/K4 and Elecraft amps. He does the hard work, and
his support is fantastic.
73 Eric WD6DBM
On Fri, Sep 17, 2021, 7:23 AM Jack Brindle via Elecraft <
elecraft@mailman.qth.net> wrote:
> VGA cables are
Jerry ...
In either of the failures, were you controlling transceiver output through ALC
or, as it sounds, manually?
73,
Kent K9ZTV
> On Sep 18, 2021, at 8:48 PM, Jerry Kirshenbaum wrote:
>
> re: it'd pay to review the SPE
>
> In May 2021 I bought a SPE 1.5K-FA 2nd generator new from
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