Re: [Elecraft] LiIon types, and safety (was: Fire in the house li-ion)

I have found that having a KXBT2 around is very handy in the shop. If I have the K2, K3, KX3 or other 13V rig on the bench and want to power it up for checks, to run an alignment, etc., I just plug in the KXBT2. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net]

Re: [Elecraft] K1 - VFO frequency range

Just as an additional note. I built two K1's last year and even though I wound the turns for L1 so they were really tight as I found from experience its much easier to spread them out a bit than to compress them again. In both K1's I actually had to remove one turn to get the VFO low enough.

[Elecraft] Sub Receiver quits working in Diversity mode

When I put my K3 #3300 FW5.57 into Diversity mode. The sub receiver stops receiving after a few minutes. If I use the sub receiver as a second receiver (no diversity) the sub RX never stops receiving. Any Ideas? Rich K3RWN __

Re: [Elecraft] Diversity and RF/Vol Controls

I think there is an issue with the radio. I have everything set as suggested. The SubRX works fine as a standalone RXer. In diversity mode I get nothing from the subRX (right speaker) Rich On 5/24/2017 19:31 PM, Dale Boresz wrote: Hello Rich, I have been using diversity reception on

Re: [Elecraft] Diversity and RF/Vol Controls

I had forgotten about setting the SUB AF to balance. Thanks for the reminder. Is there a macro command that will adjust the balance? I set the SUB AF to Balance and the knob on the radio controls the balance. My macro to set the SUB AF Gain still sets the gain instead of the balance. 73, Tom

Re: [Elecraft] Diversity and RF/Vol Controls

Hello Rich, I have been using diversity reception on the K3 on 40m for years, and can control both RF gains separately, and the AF Gain controls are set so that the larger one acts as a balance control, and the smaller one acts as a master volume control for both simultaneously (however that can

[Elecraft] K3s, FM T, -, repeater setup on 6m

I think I have this right We have a local 6M repeater. It's 53.05 receive -1kHz for TX. (52.05). Tone set for 186.2 I can hear the station ID And, I can see where my TX is sending the tone (on the P3). But no one is hearing me. Is this because the repeater is using TSql, rather than

Re: [Elecraft] Diversity and RF/Vol Controls

Yes SPKRS is set to 2. I get nothing in my left (sub) speaker during diversity. The left spkr works fine when I use the Sub and Main RXs separately. rich On 5/24/2017 18:42 PM, John Nogatch wrote: ...Diversity mode does the Main RF gain and Main AF take over for both receivers? At

Re: [Elecraft] LiIon types, and safety (was: Fire in the house li-ion)

> On 24 May 2017, at 23:01, Wayne Burdick wrote: > > >> On May 24, 2017, at 1:31 PM, Terje Elde wrote: >> >> There are LiIons out there (18650 and maybe also 14500) that have built-in >> protections against all sorts of things, including both under- and

Re: [Elecraft] Diversity and RF/Vol Controls

> ...Diversity mode does the Main RF gain and Main AF take over for both > receivers? At least that appears to be the case... > > Hence the Sub RF gain and Sub AF have no function at that point? Check that CONFIG: SPKRS is set to 2 otherwise it will behave as you described. Also, you need to

[Elecraft] Diversity and RF/Vol Controls

I am a bit lost when the radio is in diversity mode. Once I engage Diversity mode does the Main RF gain and Main AF take over for both receivers? At least that appears to be the case. Hence the Sub RF gain and Sub AF have no function at that point? Rich K3RWN

Re: [Elecraft] LiIon types, and safety (was: Fire in the house li-ion)

Which is why I've given up on homebrewing an extra pack - albeit for external use - I have bought another KXBT2! I have to say though, that I'm still not finding it totally straightforward getting the two halves of the KX2 back together again after replacing the battery. When I received the KX2,

Re: [Elecraft] LiIon types, and safety (was: Fire in the house li-ion)

> On May 24, 2017, at 1:31 PM, Terje Elde wrote: > > There are LiIons out there (18650 and maybe also 14500) that have built-in > protections against all sorts of things, including both under- and > overvoltage. That can significantly reduce various risks associated with >

[Elecraft] LiIon types, and safety (was: Fire in the house li-ion)

> On 24 May 2017, at 15:20, Richard Fjeld wrote: > > I had bought a balance charger and a voltage monitor, and low voltage alarms, > but I have made battery packs that wouldn’t be practical to attach a monitor > to. Example, I have an old Kenwood hand-held that hasn’t

Re: [Elecraft] Choking KPA500 and testing a box of unknown chokes

Jim, I apologize: I made a typo in my post. It should have said "...the highest choking IMPEDANCE is usually obtained with an air core choke (coax looped with or without some form like PVC)". Maybe this is an over-statement, but of the few chokes I have tested, air core chokes made with just

Re: [Elecraft] Choking KPA500 and testing a box of unknown chokes

Folks - we are now at 10 posts in a storp period on this OT thread. Let's close the thread now in the interest of lowering email overload for our other readers. Please take it to direct email as needed. 73, Eric Moderator /elecraft.com/

Re: [Elecraft] Choking KPA500 and testing a box of unknown chokes

On Wed,5/24/2017 9:39 AM, Bill Leonard N0CU wrote: Two of the main trade offs are bandwidth and choking impedance. The highest choking BW is usually obtain with an air core choke (coax looped with or without some form like PVC). However, this approach is very high Q, which yields relatively low

Re: [Elecraft] Choking KPA500 and testing a box of unknown chokes

Mike, Wes raises one of the many interesting aspects of balun design, and not surprisingly, one that there doesn't appear to be a consensus on. Two of the main trade offs are bandwidth and choking impedance. The highest choking BW is usually obtain with an air core choke (coax looped with or

Re: [Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

Between 2002 and 2014 Elecraft made a four-band filter board KFL1-4 which allowed operation on 40m, 30m, and any two of 20m, 17m, and 15m. It had superior RF performance on each band compared to equivalent two-band filter boards. The unavailability of special temperature-stable trimmer

Re: [Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

Roney, When you change band boards, you will have to enter the menu and change the "b1" and "b2" parameters to match whichever bands you have on the board. b3 and b4 are only for the 4 band board which is no longer available. The 2 band board only allows "b1" and "b2". The K1 does remember

Re: [Elecraft] Clever K3s cooling scheme?

Right, Roy. It's a whole different cooling system. The K2 has an EXTERNAL heat sink. The fan assists by cooling the components inside the KPA100 amp, pushing air in across the components and out through holes around the forward edge of the heat sink. The heat sink fins are on top of the K2 in open

Re: [Elecraft] K1 - VFO frequency range

I assume you have already calibrated the LCD display on each band using the OCF menue function. That makes the LCD indicate the actual transmitter output frequency, This display calibration for each band must be performed before adjustment of where the low end of each band starts. Because

[Elecraft] Feature request

*/I would like to see Band Stacking Register using the Band buttons on the amp's Regards Art ka9zap /* __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

All 4 bands cannot be installed at the same time. If you buy the second 2 band module for 20/40 you will have to remove the 80/15 module to install the 20/40. You will also need to reprogram B1 to 14 and B2 to 7. Every time you remove one band module and install another you should go through the

Re: [Elecraft] Clever K3s cooling scheme?

Thanks for noticing, Roy :) Wayne N6KR > On May 24, 2017, at 5:36 AM, Roy Koeppe wrote: > > Re all the fans postings, it appears my K3s uses convection cooling during > light usage periods, drawing air in at the rear, backwards thru the idle > fans, and out the top. When fans

Re: [Elecraft] K3/K3S with KXV3B Feature request

Hi Mike, Excellent idea. This should be a simple change to the K3/K3S firmware. 73, Wayne N6KR > On May 24, 2017, at 6:22 AM, M Cresap wrote: > > Wayne/Eric > > I'd like to use a lower net gain (on receive) transverter with a K3/K3S. The > transverter IF frequency is

[Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

Hello, now that my Rig is ready, I want to ask something that wasn't clear when I bought it. In Elecraft website, there is a "*KFL1-2 Additional 2 Band Module*"; I did not buy it, because I still don't know if it works. I already have B1 as

[Elecraft] K3/K3S with KXV3B Feature request

Wayne/Eric I'd like to use a lower net gain (on receive) transverter with a K3/K3S.The transverter IF frequency is 28 MHz. Would it be possible to selectively enable Preamp 2 of the KXV3B during transverteroperation? Moving the transverter receive line to "Rx ant. in" andselecting Preamp 2

Re: [Elecraft] K1 - VFO frequency range

Roney, There is no adjustment for individual bands. If you have no other band boards, you can adjust the turns on L1 to bring the lower end of 80 meters up to 3.500 MHz. Normally, the VFO range is adjusted so that all bands will tune a bit below the low frequency limit. This compensates

Re: [Elecraft] Fire in the house li-ion

Just a note to say I’m still thinking about the information from this thread, and I’m glad to learn of fires while a Lithium type battery discharges. I had no idea they would do that, and it takes the fun out of having them. I had bought a balance charger and a voltage monitor, and low voltage

[Elecraft] K1 - VFO frequency range

Hello, I just finished all tests and adjustments in my K1. It works great. I have 2 filter band as 80m and 15m. It's transmitting and receiving very well. I followed all tests in: VFO Range Test (Page 38): VFO knob fully clockwise = 3.007 khz VFO knob fully counterclockwise = 3.091 khz VFO range

[Elecraft] Clever K3s cooling scheme?

Re all the fans postings, it appears my K3s uses convection cooling during light usage periods, drawing air in at the rear, backwards thru the idle fans, and out the top. When fans engage, air flow is reversed...drawn in thru the top and out the back. "Simplicity is ingenuity." 73, Roy

Re: [Elecraft] Elecraft] KX2 Firmware

Oh Boy, a new subject to create endless comments. Things WERE starting to die down a tad. Chas -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred C. Jensen Sent: Wednesday, May 24, 2017 12:42 AM To: Chris Tate ;