Re: [Elecraft] K3S Receiver Spurious

Is your K3S connected to a computer (or some other significant piece of electronics), and if so, are they tightly and closely bonded together chassis wise? 73, Dave   AB7E On 12/3/2023 8:11 PM, Michael Tope wrote: Hi All, I noticed when operating the ARRL 160 contest this weekend that

[Elecraft] Elecraft 80M SSB Net Report

3806 kHz (We met on 3810 kHz due to another couple of nets on 3803 and 3807), 9PM ET Sunday (0200Z Monday). Thanks to the following check ins (w) and relays (rel): Call State Radio/Amp Name 1 N8SBE MIK4D/KPA500 Dave (w),(op) 2 WB9JNZ ILFTdx101d/KPA1500

[Elecraft] K3S Receiver Spurious

Hi All, I noticed when operating the ARRL 160 contest this weekend that my K3S has developed a nasty case of what appears to be some sort of LO spurious. When tuning across strong signals, I can now hear a low-level buzz (like phase noise reciprocal mixing) as I tune off them followed by a

[Elecraft] In-shack RFI Precautions was: Re: Elecraft Digest, Vol 236, Issue 2

For whatever it is worth, I use 1" copper tubing, running down the back of my desktop, then connecting by about 8 feet of #8 copper to an 8-foot ground stake.  Everything in my shack handling significant power or RF is bonded to the tubing.  My house system ground is on the diametrically

[Elecraft] Elecraft CW Net Report

Good Evening,    Twenty meters was mostly quiet, with mild QSB.  Forty meters was more noisy, with moderate QSB.  Weather reports were chilly, to cold, to snowy, to rainy, to droughty, to mild and sunny.  I'm trying to arrange a rain swap with Iowa; sunny days in December would be nice.  

Re: [Elecraft] Noise from KAT500?

On 12/3/2023 4:20 PM, David Woolley wrote: small, ferrite toroid. Using a higher frequency allows a less bulky transformer. Yes. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] Noise from KAT500?

Most switch mode supplies have transformers. The weight differences reflects the difference between a large mass of laminated iron, and a, small, ferrite toroid. Using a higher frequency allows a less bulky transformer. -- David Woolley On 03/12/2023 04:54, David Gilbert wrote: The ones I

Re: [Elecraft] KX3 2M amp

Yes, of course. Works fine. On Sun, Dec 3, 2023, 8:37 AM Steve McKee wrote: > Hello, > I’ve have the 2 meter module in my KX3, and am wondering if I can hook a > small VHF amplifier to it, to increase power output?? > I’m planning on purchasing the KXPA 100 for the HF side…. > Course these are

Re: [Elecraft] Elecraft Digest, Vol 236, Issue 2

On 12/3/2023 9:23 AM, Bob McGraw wrote: Jim, K9YC, has very strong merits in that each and every piece of equipment MUST be bonded to a single common point.   I use the station power supply for my single common bonding  point.  I DO NOT use an external dedicated ground as it would be 35 ft in

Re: [Elecraft] K3S VFO B doesn't change sub-RX frequency

Hi Ed, Thanks for the reply. Yes, that was one of the first things I tried. No joy. 73 Jim KY2D From: Ed Parish Sent: Sunday, December 3, 2023 12:08 To: Jim Kutsch KY2D Cc: Elecraft List Subject: Re: [Elecraft] K3S VFO B doesn't change sub-RX frequency Did you try B.SET and

Re: [Elecraft] Noise from KAT500?

To me, it sounds like that when the ATU is inline (& I presume you let it tune to that antenna at some point.  Yes/No?) The antenna is better matched to the transmission line, so more of the on-air "ambient" noise is delivered to the RX. I get the same here, where 60m is quite noisy anyway. 

Re: [Elecraft] Noise from KAT500?

Then purchase a 12V PSU from a reputable Ham Radio dealer, who is unlikely to sell you a noisy one. 73, Alan - G4GNX South Coast UK Elecraft K4D / KPA500 / KAT500 / IC-9700 > On 3 Dec 2023, at 19:16, W2HX wrote: > > ? I don't have any 12v transceivers. This is the only 12 device I have in

Re: [Elecraft] Noise from KAT500?

I remember those days. I still have my Heath SB-303 and SB-401 pair, both of which run from 117VAC. I didn’t have to get a 12V supply until I started upgrading back around 2000. You might want to invest in a small Astron linear supply (or similar). You will slowly start acquiring equipment that

Re: [Elecraft] Noise from KAT500?

? I don't have any 12v transceivers. This is the only 12 device I have in the shack. Thanks Eugene W2HX Sent from Nine From: Bob McGraw Sent: Sunday, December 3, 2023 12:11 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Noise from

[Elecraft] Elecraft 80M SSB Net Announcement

Please join us on 3806kHz (NOTE THE NEW FREQUENCY WHICH MOVES US INTO THE GENERAL CLASS BAND), 9PM ET Sunday (0200Z Monday). Note that the net stays on the same local time, when we switch back and forth to/from Daylight time, so the UTC time changes, but not the local time. Now that we have

Re: [Elecraft] Elecraft Digest, Vol 236, Issue 2

There are many very nice, well filtered, well regulated power supplies on the market.  I see NO REASON for using anything other than the station power supply to power all accessories.    As to plant lights, use a separate power supply and not the piece of junk supplied with them. I have and

[Elecraft] Noise from KAT500?

Just power it from the transceiver power supply and all will be resolved.   There is no point in making life complex. 73 Bob, K4TAX On 12/3/2023 9:52 AM, elecraft-requ...@mailman.qth.net wrote: Message: 8 Date: Sun, 3 Dec 2023 01:48:45 + From: W2HX To: Michael Carter, Elecraft Reflector

Re: [Elecraft] K3S VFO B doesn't change sub-RX frequency

Did you try B.SET and then unlock? On Sun, Dec 3, 2023, 12:06 Jim Kutsch KY2D wrote: > When the K3S sub-RX is turned on, VFO B does nothing. It's as if it's > locked > but unlock doesn't change the situation. Might there be a config setting > that was accidentally changed? I think I've gone

[Elecraft] K3S VFO B doesn't change sub-RX frequency

When the K3S sub-RX is turned on, VFO B does nothing. It's as if it's locked but unlock doesn't change the situation. Might there be a config setting that was accidentally changed? I think I've gone through everything and haven't found a solution. Thank. 73 Jim KY2D

[Elecraft] KX3 2M amp

Hello, I’ve have the 2 meter module in my KX3, and am wondering if I can hook a small VHF amplifier to it, to increase power output?? I’m planning on purchasing the KXPA 100 for the HF side…. Course these are both for in home use, not in the field…QRP in the field… Thank You, 73’s null

Re: [Elecraft] Noise from KAT500?

Oh purleeez, don’t start a political argument on an Amateur Radio forum, especially without changing the subject line. 73, Alan - G4GNX South Coast UK Elecraft K4D / KPA500 / KAT500 / IC-9700 > On 3 Dec 2023, at 15:28, Wes wrote: > > I know you are a fan of government running everything in

Re: [Elecraft] Noise from KAT500?

I know you are a fan of government running everything in our lives, but this "small" government is $33+ trillion in debt. On 12/2/2023 8:25 PM, Jim Brown wrote: 99.9% of stuff that plugs into the wall has a Switch-mode power supply, most of which are varying degrees of noisy. They were

Re: [Elecraft] Noise from KAT500?

FWIW I had this issue with an IC7100/MFJ 1500W tuner. I was finding sprogs in the 40 metre band and they were changing frequency (moving round the band) when I changed the tuning frequency, which I put down to different relays being deployed, varying the load. I replaced the PSU and all

Re: [Elecraft] Noise from KAT500?

Bill, At the risk of going a bit off topic from Elecraft here-- I use a power distribution block, and run 12 volts to every device I can reach from a known good supply. For the items I can get to with that 12V I go to the local thrift stores, and look at the used wall wart power supplies.