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Tuning 40m dipole, QCX+, nanovna, and Multi Z Tuner 22 messages
#qcx40
#40m
#antenna
For the final try without the tuner, I got 1.16:1 @ 7.055MHz, 1.25:1 @7MHz, and 2.01:1 at 7.3Mhz.
For the final try without the tuner, I got 1.16:1 @ 7.055MHz, 1.25:1 @7MHz, and 2.01:1 at 7.3Mhz.
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By
David LaBrie
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Remote antenna switching 12 messages
#antenna
Steve - that looks like a really fun box of tricks, I love stuff like this! Dave, many thanks - I need to do some homework so I properly understand how these antennae work together. Everyday with this
Steve - that looks like a really fun box of tricks, I love stuff like this! Dave, many thanks - I need to do some homework so I properly understand how these antennae work together. Everyday with this
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By
Ted 2E0THH
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#antenna #qrp-dx Gents - a guide for the Perplexed , and what's more Free. ARRL Antenna basics book. 12 messages
#antenna
#qrp-dx
Hans can take it off in a week. or I will .. set your egg timer going. If they had done massive revisions to it then I would not give a monkey's Ar$e about the IP aspect because the Highly revised boo
Hans can take it off in a week. or I will .. set your egg timer going. If they had done massive revisions to it then I would not give a monkey's Ar$e about the IP aspect because the Highly revised boo
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Timothy Fidler
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#antenna #qrp-dx Gents - Rothammel's book
#antenna
#qrp-dx
For information on the Zepp, see sections 9.1.1.1.1 for the Zepp and 9.2.3 for the double-Zepp in the English edition of Rothammel’s Antenna Book (Krischke, DARC Verlag 2019). John F5VLF
For information on the Zepp, see sections 9.1.1.1.1 for the Zepp and 9.2.3 for the double-Zepp in the English edition of Rothammel’s Antenna Book (Krischke, DARC Verlag 2019). John F5VLF
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John Rabson
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External active antenna for GPS 4 messages
#gps
#antenna
Hi, Remember R10 is there for safety, i.e. if your aerial connection develop a short circuit, you may want to limit the current, most GPS aerials only draw 10’s of mA, so you can put in 50-100 Ohms, m
Hi, Remember R10 is there for safety, i.e. if your aerial connection develop a short circuit, you may want to limit the current, most GPS aerials only draw 10’s of mA, so you can put in 50-100 Ohms, m
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By
Andrew Lenton
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QLG1 Startup issue with Ext Antenna 8 messages
#gps
#antenna
Larry sorry it appeared I was shouting ( BTW that would have been all caps). I simply did a copy and paste from the manual and apparently it used the manual formatting. ;>)
Larry sorry it appeared I was shouting ( BTW that would have been all caps). I simply did a copy and paste from the manual and apparently it used the manual formatting. ;>)
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By
N3MNT
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Receive antenna
#antenna
#qcx
#80m
Does anyone use a receive antenna with the QCX? How do you manage T/R switching? Do you have a preamp? Thanks Richard - NS3C
Does anyone use a receive antenna with the QCX? How do you manage T/R switching? Do you have a preamp? Thanks Richard - NS3C
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Richard Hall
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Smeter antenna programs 10 messages
#antenna
I use Dosemu, or wine, a linux user. If need be I have a real 486dx with DOS6.22, win3.11, winxp or Linux (.9 slackware version). And if antique is enough a Northstar Horizon running a 10mhz z80 CP/M
I use Dosemu, or wine, a linux user. If need be I have a real 486dx with DOS6.22, win3.11, winxp or Linux (.9 slackware version). And if antique is enough a Northstar Horizon running a 10mhz z80 CP/M
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By
ajparent1/KB1GMX
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End Fed 1/4 Wave 14 messages
#40m
#antenna
For QRP portable I have used the Emtech ZM2 Z-Match tuner. It is small, light weight and can match most any length of wire. That said my most efficient antenna for SOTA is the resonant end fed half wa
For QRP portable I have used the Emtech ZM2 Z-Match tuner. It is small, light weight and can match most any length of wire. That said my most efficient antenna for SOTA is the resonant end fed half wa
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Dan Pflugrath
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QCX new build resolved transmit issue but I hear only noise when listening across the band 5 messages
#antenna
#qcx
I continue to be amazed at how hot the receiver is. I heard a very strong OK7 near the end of the contest on 40 and thought conditions might allow a QRP contact, but no go. Turned on the IC-7300, hear
I continue to be amazed at how hot the receiver is. I heard a very strong OK7 near the end of the contest on 40 and thought conditions might allow a QRP contact, but no go. Turned on the IC-7300, hear
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By
Steve in Okinawa
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QCX enclosure GPS connector 10 messages
#case
#gps
#antenna
Hi, i am using so called CCTV jacks with 6 pins, they fit exact in the cutting of the Bama case. The jack is a clip on type, the screws are not needed. I mouned them only to cover the holes. Ralf
Hi, i am using so called CCTV jacks with 6 pins, they fit exact in the cutting of the Bama case. The jack is a clip on type, the screws are not needed. I mouned them only to cover the holes. Ralf
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Ralf Rosche
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Will this balun work ok? 14 messages
#40m
#antenna
JohnL. Buying Chinese toroidal is fraught with risk. If your QTH is North America, buy from Diz at Kits and Parts. Or buy from any of the big part suppliers like Mouser or Arrow. Buy more than you nee
JohnL. Buying Chinese toroidal is fraught with risk. If your QTH is North America, buy from Diz at Kits and Parts. Or buy from any of the big part suppliers like Mouser or Arrow. Buy more than you nee
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By
Russ@va3rr
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Antenna 37 messages
#antenna
Hi Arv, Thanks for your testamony regrading the LED and QRPp levels. I am taking your information about lighting the LED with 0.1 watts of rf as your hands-on experience. I would never have tried it.
Hi Arv, Thanks for your testamony regrading the LED and QRPp levels. I am taking your information about lighting the LED with 0.1 watts of rf as your hands-on experience. I would never have tried it.
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Bill Cromwell
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QCX with remote antenna 20 messages
#antenna
#qcx
Ted, the frown-factor is real. Also, if you have VDSL coming in via the copper telephone wires, you can expect a lot of mush in your headphones. A mag-loop might well be your best option. The grass an
Ted, the frown-factor is real. Also, if you have VDSL coming in via the copper telephone wires, you can expect a lot of mush in your headphones. A mag-loop might well be your best option. The grass an
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Michael.2E0IHW
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SWR qsx reboots 7 messages
#antenna
Thanks Jess, It works now but i still gonna do the measurement you described. TU my vy 73 hanz YL3JD
Thanks Jess, It works now but i still gonna do the measurement you described. TU my vy 73 hanz YL3JD
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By
hanz YL3JD
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QCX 40 ~ 1/2 wave NVIS Observations & question 7 messages
#antenna
Steve, One last if you support the wire just off the fence (when you can) it may be less fuzssy in the wet. I'm talking inches away, using say electric fence insulators. I did that using trees and 5"
Steve, One last if you support the wire just off the fence (when you can) it may be less fuzssy in the wet. I'm talking inches away, using say electric fence insulators. I did that using trees and 5"
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ajparent1/KB1GMX
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#antenna #qcx 2 messages
#antenna
#qcx
It would depend on what you wanted to aspect you were wanting to tune- min SWR or Max signal. If you had a good stable signal source to listen to on the QCX, you might find the S-meter would respond a
It would depend on what you wanted to aspect you were wanting to tune- min SWR or Max signal. If you had a good stable signal source to listen to on the QCX, you might find the S-meter would respond a
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By
Wes AE6ZM
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Simple Rig
#40m
#qcx
#antenna
Today, I tried a very simple installation: 13m of thin antenna wire on a Chinese made 1:9 UnUn, grounded with a crocodile patch to the radiator. The wire was running out of the 1st floor window in abo
Today, I tried a very simple installation: 13m of thin antenna wire on a Chinese made 1:9 UnUn, grounded with a crocodile patch to the radiator. The wire was running out of the 1st floor window in abo
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By
DG2FDD
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2nd VHF Super Confernece: Call for Papers/Presentations 12 messages
#antenna
#vhf
#uhf
Didn't feel like showing everyone what a jerk you are, Andy? Nice job, fella.
Didn't feel like showing everyone what a jerk you are, Andy? Nice job, fella.
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By
Michael N6MST
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No audio at BPF adjustment 4 messages
#antenna
#alignment
Hi Fred From all the reports I have heard, and samples we take of stock, and the QCX kits we build here - I believe the failure rate of the audio gain pots to be very low - I think somewhat under 1%.
Hi Fred From all the reports I have heard, and samples we take of stock, and the QCX kits we build here - I believe the failure rate of the audio gain pots to be very low - I think somewhat under 1%.
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By
Hans Summers
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