Re: [Elecraft] K3/0-Mini, XV432, RemoteRig and more for Sale

2022-10-25 Thread Mike Lewis
Updated previous list and added other items, making room in the new shack.

For sale now:

DEMI 902/3 Xvtr, 10W 144 IF.  $275.
DEMI 1296 Xvtr, 3W, 144 IF. $275.
All Xvtrs above are modified to use a DigiLo PLL via a SMA but can be easily 
flipped back to the crystal if desired.  

Elecraft K3/0-Mini-F remote control head.  $700.

Adding These:
Tektronix 475A  Oscope - $200 

Make offer on these! - The heavy items I am not likely to ship.
TS-930S  HF rig, 100W
TS-700A  All mode 2M rig, 10W
2.5KW water cooled Bird dummy load
50uA Bird wattmeter in steel case (regular Bird 43 is 30uA and smaller meter 
face).  Maybe works with dummy load
60Mhz network analyzer, connects to PC
Sola Basic RF wattmeter - White metal case, clone of a Bird 43, uses same slugs.
Tektronix 1401 Spectrum analyzer Module.  12V operation, uses an oscope for 
display.


Mike
K7MDL  CN88sf

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Re: [Elecraft] KXAT2 vs. KXAT3 vs. T1

2022-10-25 Thread Brian Hunt
(edited message follows)

> On Oct 25, 2022, at 13:05, Brian Hunt  wrote:
> 
> I believe the schematics, which are downloadable, will show the component 
> values. They are typically a binary progression. I’ve never tabulated them 
> though. 
> 
> Brian, K0DTJ 
> 
>> On Oct 25, 2022, at 10:16, Walter Underwood  wrote:
>> 
>> The KX3 has extra range so that it covers 160 m and 6 m compared to the 
>> KX2, which is 80 to 10 m. The T1 is spec’ed to cover 160 to 6 m, so I’m not 
>> sure about the details of that.
>> 
>> The KX3 might have a wider matching range on just the HF bands. I’ve only 
>> had it fail to match once.
>> 
>> A few years ago, there was a discussion on this list that gave all the 
>> component values for all the ATUs. I’m not having any luck finding those 
>> posts right now.
>> 
>> wunder
>> K6WRU
>> Walter Underwood
>> CM87wj
>> http://observer.wunderwood.org/  (my blog)
>> 
 On Oct 25, 2022, at 9:51 AM, Julia Tuttle >>> > wrote:
>>> 
>>> Hi folks,
>>> 
>>> I was looking at Elecraft's antenna tuners, and I'm a little confused at
>>> their specs.
>>> 
>>> The T1 and KXAT2 are listed as having 7L7C networks, while the KX3 is
>>> listed as having an 8L8C network, but all three are listed as being able to
>>> match up to a 10:1 SWR.
>>> 
>>> Why doesn't the KXAT3 have a wider matching range from the extra inductor
>>> and capacitor?
>>> 
>>> Is the 10:1 spec conservative and in reality all three can exceed it but
>>> the KXAT3 will outperform the other two? Do the eighth inductor and
>>> capacitor on the KXAT3 provide *closer* matches instead of a *wider*
>>> matching range?
>>> 
>>> Thanks and 73,
>>> 
>>> Julie
>>> __
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>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft 
>>> 
>>> Help: http://mailman.qth.net/mmfaq.htm 
>>> Post: mailto:Elecraft@mailman.qth.net 
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>>> Please help support this email list: http://www.qsl.net/donate.html 
>>> 
>>> Message delivered to wun...@wunderwood.org  
>> 
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Re: [Elecraft] KXAT2 vs. KXAT3 vs. T1

2022-10-25 Thread Brian Hunt
I believe the schematics, which are downloadable, will show the component 
values. I’ve never tabulated them though. 

Brian, K0DTJ 

> On Oct 25, 2022, at 10:16, Walter Underwood  wrote:
> 
> The KX3 has extra range so that it covers 160 m and 6 m compared to the KX2, 
> which is 80 to 10 m. The T1 is spec’ed to cover 160 to 6 m, so I’m not sure 
> about the details of that.
> 
> The KX3 might have a wider matching range on just the HF bands. I’ve only had 
> it fail to match once.
> 
> A few years ago, there was a discussion on this list that gave all the 
> component values for all the ATUs. I’m not having any luck finding those 
> posts right now.
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/  (my blog)
> 
>> On Oct 25, 2022, at 9:51 AM, Julia Tuttle > > wrote:
>> 
>> Hi folks,
>> 
>> I was looking at Elecraft's antenna tuners, and I'm a little confused at
>> their specs.
>> 
>> The T1 and KXAT2 are listed as having 7L7C networks, while the KX3 is
>> listed as having an 8L8C network, but all three are listed as being able to
>> match up to a 10:1 SWR.
>> 
>> Why doesn't the KXAT3 have a wider matching range from the extra inductor
>> and capacitor?
>> 
>> Is the 10:1 spec conservative and in reality all three can exceed it but
>> the KXAT3 will outperform the other two? Do the eighth inductor and
>> capacitor on the KXAT3 provide *closer* matches instead of a *wider*
>> matching range?
>> 
>> Thanks and 73,
>> 
>> Julie
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft 
>> 
>> Help: http://mailman.qth.net/mmfaq.htm 
>> Post: mailto:Elecraft@mailman.qth.net 
>> 
>> This list hosted by: http://www.qsl.net 
>> Please help support this email list: http://www.qsl.net/donate.html 
>> 
>> Message delivered to wun...@wunderwood.org  
> 
> __
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Re: [Elecraft] KXAT2 vs. KXAT3 vs. T1

2022-10-25 Thread Walter Underwood
The KX3 has extra range so that it covers 160 m and 6 m compared to the KX2, 
which is 80 to 10 m. The T1 is spec’ed to cover 160 to 6 m, so I’m not sure 
about the details of that.

The KX3 might have a wider matching range on just the HF bands. I’ve only had 
it fail to match once.

A few years ago, there was a discussion on this list that gave all the 
component values for all the ATUs. I’m not having any luck finding those posts 
right now.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/  (my blog)

> On Oct 25, 2022, at 9:51 AM, Julia Tuttle  > wrote:
> 
> Hi folks,
> 
> I was looking at Elecraft's antenna tuners, and I'm a little confused at
> their specs.
> 
> The T1 and KXAT2 are listed as having 7L7C networks, while the KX3 is
> listed as having an 8L8C network, but all three are listed as being able to
> match up to a 10:1 SWR.
> 
> Why doesn't the KXAT3 have a wider matching range from the extra inductor
> and capacitor?
> 
> Is the 10:1 spec conservative and in reality all three can exceed it but
> the KXAT3 will outperform the other two? Do the eighth inductor and
> capacitor on the KXAT3 provide *closer* matches instead of a *wider*
> matching range?
> 
> Thanks and 73,
> 
> Julie
> __
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> 
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> Post: mailto:Elecraft@mailman.qth.net 
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> This list hosted by: http://www.qsl.net 
> Please help support this email list: http://www.qsl.net/donate.html 
> 
> Message delivered to wun...@wunderwood.org  

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[Elecraft] KXAT2 vs. KXAT3 vs. T1

2022-10-25 Thread Julia Tuttle
Hi folks,

I was looking at Elecraft's antenna tuners, and I'm a little confused at
their specs.

The T1 and KXAT2 are listed as having 7L7C networks, while the KX3 is
listed as having an 8L8C network, but all three are listed as being able to
match up to a 10:1 SWR.

Why doesn't the KXAT3 have a wider matching range from the extra inductor
and capacitor?

Is the 10:1 spec conservative and in reality all three can exceed it but
the KXAT3 will outperform the other two? Do the eighth inductor and
capacitor on the KXAT3 provide *closer* matches instead of a *wider*
matching range?

Thanks and 73,

Julie
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[Elecraft] KPA500: THANK YOU Elecraft for building a really tough Amp!

2022-10-25 Thread Dave (NK7Z)
I have to thank the folks at Elecraft design...  I was running a full 
500 watts out of my KPA500 this morning, when we took a power hit, 
during transmit!  AC Line dropped, then came back on line, and dropped 
again, then returned again...  Not a clean power fail.  Once the power 
came back on, I was VERY worried that the amp may have been damaged...


Nope, the KPA500 came right back up working just fine!  So THANK YOU for 
the safety's built into the KPA500!  The K3, P3, Icom IC-5100, and both 
computers and monitors were on a UPS, so they never saw the power hit. 
The funny part is that I changed UPS batteries yesterday, because the 
UPS only held for a second or so.  It would not have held during this 
power hit, had I not changed batteries...


In any case, the KPA500 is one well built amp...

--
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
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[Elecraft] K3/0-Mini, XV432, RemoteRig and more for Sale

2022-10-25 Thread Mike Lewis
Moved out of 2nd home with full VHF+ station so no longer need remote access 
and redundant transverters, radios, and amps.  

For sale now:

1. XV432 refitted with a quiet Noctua fan and xtal oven option for $375.
2. DEMI 902/3 Xvtr, 10W 144 IF.  $275.
3. DEMI 1296 Xvtr, 3W, 144 IF. $275.
All Xvtrs above are modified to use a DigiLo PLL via a SMA but can be easily 
flipped back to the crystal if desired.  

4. K7MDL design Multiband LO box.  Band Decode input to select 1 of 6 LO slots. 
 Each slot has programmable DigiLo frequency and programmable step attenuated 
level covering +22dBm to -28dBm I think.  Internal 12-24V DC-DC converter for 
powering a remote coax switch.  Band decode output for ant switch or 
transverter/amp selection.  LCD with encoder for config menu system. 10MHz 
OCXO, can use external 10M or internal DigiLO clock. Also has GPS serial input 
for Grid square and time readout. $250

5. RemoteRig RRC-1258 MkIIs V7 radio Unit #1 with K3 cable set (Dual RX) $250
6. RemoteRig RRC-1258 MkIIs V7 radio Unit #2 with K3 cable set (Dual RX) $250
7. RemoteRig RRC-1258 MkIIs V7 Control Unit (Dual RX) with WiFi option and K3/0 
Mini cable set. $300
8. Elecraft K3/0-Mini-F remote control head.  $700.

- Mike
K7MDL

Mike
K7MDL  EL87sm & CN88sf

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