Re: [Elecraft] Elecraft KX1 - a builder's review
My KX1 has the old 30m board. Its power output is 4,2w on 20m from a 13,8 supply., but approaches 7 watts with the A123 pack. Perhaps the 80m board lowers the output, I have no way of testing. I don't think 80m QRP is as popular on the Left Coast of the U.S as it is elsewhere. I rarely operate there anyway. 73 Eric. WD6DBM Johnny Siu vr2...@yahoo.com.hk wrote: Basic KX1 gives more power. I am not surprised for power output over 4W. However, with the addition of KXB3080 module, the low pass filter LPF1 is a compromise, it will be hard to squeeze power up to 4 watts. 73 Johnny VR2XMCKX1 # 2839 寄件人︰ Eric Norris norrislawfi...@gmail.com 收件人︰ Mike Morrow k...@earthlink.net 副本(CC)︰ elecraft@mailman.qth.net 傳送日期︰ 2014年12月17日 (週三) 2:55 PM 主題︰ Re: [Elecraft] Elecraft KX1 - a builder's review My KX1 puts out over 5 watts when powered with an A123 LiFePO pack, and will run longer than I can from a small.4S1P battery. It fits perfectly into a Pelican 1060 box, which makes it nearly indestructible when using it to soften face plants while xc skiing. It's perfect as is, though a 40-20-15 version would be interesting. I'd like to see a single-band KX0, the size of a Rockmite, a full 1-2 watts out, with attendant Elecraft mojo. THAT would be cool. It could use an outboard T1 for tuning wires. 73 Eric WD6DBM Mike Morrow k...@earthlink.net wrote: Phil wrote: A reasonable assessment, Johnny. Of course the KX1 was designed as the ultimate Trail-Friendly Radio (TFR) and that it is! I always preferred the K1 versus the KX1. I must have 15m, plus the KX1 really needs a four-pole IF filter, IMO. I have a dream of a KX2 that is a KX1 descendant, with four-pole filter, 15m and maybe other bands not on a KX1, back-lit LCD vs LED, noise blanker, and everything required for the band coverage laid out from the start in the design, and not as an after- thought. (As has been often noted, the KX1 is not particularly easy rig to build with all the options.) I'd also like to see 5 watt output on all bands with 14 vdc power. Perhaps it could even be a factory-built SMT design. Finally, that KX2 would need an ATU capable of far more than 254 combinations of reactance insertion. The KAT1's 1022 combinations would be minimum, IMHO. A small, capable, simple-to-operate, very low-power-consumption QRP rig still has great appeal even with availability of the overwhelming capability of the KX3. I'd like to have both. ...and the KX2 slot in the Elecraft line needs filling! :-) Mike / KK5F __ 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 arch...@mail-archive.com
[Elecraft] Elecraft KX1 - a builder's review
Old, yes, the old kxb30 did not need to reconstruct the low pass filter, hence no effect to power output. The newer kxb3080 requires a complete reconstruction of LPF 發自 Yahoo 電子信箱 Android 版 __ 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 arch...@mail-archive.com
Re: [Elecraft] Elecraft KX1 - a builder's review (some impriovements in the manuals required)
A reasonable assessment, Johnny. Of course the KX1 was designed as the ultimate Trail-Friendly Radio (TFR) and that it is! 73, Phil W7OX On 12/15/14 7:48 PM, Johnny Siu wrote: Re-sent in a better text format: I recently built a Elecraft KX1 for a local ham in VR2 who cannot DIY himself dueto some reasons. This KX1 comes with the KXB3080 30/80 module and KXAT1 ATU module. I would like to share with you some of my experience and views during the construction process. The construction of the basic KX1 was straight forward and required less skill than K2. Although the manual of KX1 is well written, it does not clearly take into account the possibly of the future construction of KXB3080 and KXAT1. This is the major deficiency of the manual and I would not expect that from Elecraft after constructing many K2s in the past. The space tolerance with the installation of KXB3080 and KXAT1 is very tight especially near the low pass filters L1 L2 area. Therefore, the construction manual of KX1 should forth warn and draw the builder great attention: 1. - Page 32 of the KX1 manual, C46-C49, C54 should be soldered at the top (i.e.component) side with all the legs cut flush at the bottom side. This will give more space for the future installation of LPF1 (tiny PCB) of KXB3080. 2. - Don W3FPR had kindly sent me one page note of ‘building KXB3080 without unsoldering (almost)’ which was extremely useful. This literature should be included in the KX1 manual. The tiny LPF1 pcb of KXB3080 is to be situated in the tight space formed between the C46-C49 C54 area of KX1 and R3-R4 C10 area of KXAT1. Therefore, Page 3 of KXAT1 manual, R3, R4 C10 should be soldered on the component side and cut flush on the other side. To summarize: 1. - Construction of KXB3080 especially the LPF1 low pass filter required a higher skill level similar to K2 and definitely nothing like beginner’s level; 2. - Don W3FPR literature mentioned above should be included with the KX1 manual as a standard reference. Finally, back to performance, KX1 is a real nice little QRP radio with good RX selectivity and sensitivity. However, the radio is very expensive when you add up the KXB3080 and KXAT1. Try to compare with K1, K2 and KX3 in terms of price Vs performance before making your purchase decision. 73, Johnny VR2XMC __ 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 arch...@mail-archive.com
Re: [Elecraft] Elecraft KX1 - a builder's review
Phil wrote: A reasonable assessment, Johnny. Of course the KX1 was designed as the ultimate Trail-Friendly Radio (TFR) and that it is! I always preferred the K1 versus the KX1. I must have 15m, plus the KX1 really needs a four-pole IF filter, IMO. I have a dream of a KX2 that is a KX1 descendant, with four-pole filter, 15m and maybe other bands not on a KX1, back-lit LCD vs LED, noise blanker, and everything required for the band coverage laid out from the start in the design, and not as an after- thought. (As has been often noted, the KX1 is not particularly easy rig to build with all the options.) I'd also like to see 5 watt output on all bands with 14 vdc power. Perhaps it could even be a factory-built SMT design. Finally, that KX2 would need an ATU capable of far more than 254 combinations of reactance insertion. The KAT1's 1022 combinations would be minimum, IMHO. A small, capable, simple-to-operate, very low-power-consumption QRP rig still has great appeal even with availability of the overwhelming capability of the KX3. I'd like to have both. ...and the KX2 slot in the Elecraft line needs filling! :-) Mike / KK5F __ 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 arch...@mail-archive.com
[Elecraft] Elecraft KX1 - a builder's review
Hello Mike, KX1 is not cheap and I would wonder there is a sizeable market now. So, KX2 will be a big question mark. I spent quite some time building the low pass filter LPF1 of the KXB3080 option. This part is even more difficult than K2. 73 Johnny VR2XMC - 郵件原件 寄件人︰ Mike Morrow k...@earthlink.net 收件人︰ elecraft@mailman.qth.net 副本(CC)︰ 傳送日期︰ 2014年12月17日 (週三) 11:23 AM 主題︰ Re: [Elecraft] Elecraft KX1 - a builder's review Phil wrote: A reasonable assessment, Johnny. Of course the KX1 was designed as the ultimate Trail-Friendly Radio (TFR) and that it is! I always preferred the K1 versus the KX1. I must have 15m, plus the KX1 really needs a four-pole IF filter, IMO. I have a dream of a KX2 that is a KX1 descendant, with four-pole filter, 15m and maybe other bands not on a KX1, back-lit LCD vs LED, noise blanker, and everything required for the band coverage laid out from the start in the design, and not as an after- thought. (As has been often noted, the KX1 is not particularly easy rig to build with all the options.) I'd also like to see 5 watt output on all bands with 14 vdc power. Perhaps it could even be a factory-built SMT design. Finally, that KX2 would need an ATU capable of far more than 254 combinations of reactance insertion. The KAT1's 1022 combinations would be minimum, IMHO. A small, capable, simple-to-operate, very low-power-consumption QRP rig still has great appeal even with availability of the overwhelming capability of the KX3. I'd like to have both. ...and the KX2 slot in the Elecraft line needs filling! :-) Mike / KK5F __ 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 arch...@mail-archive.com
Re: [Elecraft] Elecraft KX1 - a builder's review
My KX1 puts out over 5 watts when powered with an A123 LiFePO pack, and will run longer than I can from a small.4S1P battery. It fits perfectly into a Pelican 1060 box, which makes it nearly indestructible when using it to soften face plants while xc skiing. It's perfect as is, though a 40-20-15 version would be interesting. I'd like to see a single-band KX0, the size of a Rockmite, a full 1-2 watts out, with attendant Elecraft mojo. THAT would be cool. It could use an outboard T1 for tuning wires. 73 Eric WD6DBM Mike Morrow k...@earthlink.net wrote: Phil wrote: A reasonable assessment, Johnny. Of course the KX1 was designed as the ultimate Trail-Friendly Radio (TFR) and that it is! I always preferred the K1 versus the KX1. I must have 15m, plus the KX1 really needs a four-pole IF filter, IMO. I have a dream of a KX2 that is a KX1 descendant, with four-pole filter, 15m and maybe other bands not on a KX1, back-lit LCD vs LED, noise blanker, and everything required for the band coverage laid out from the start in the design, and not as an after- thought. (As has been often noted, the KX1 is not particularly easy rig to build with all the options.) I'd also like to see 5 watt output on all bands with 14 vdc power. Perhaps it could even be a factory-built SMT design. Finally, that KX2 would need an ATU capable of far more than 254 combinations of reactance insertion. The KAT1's 1022 combinations would be minimum, IMHO. A small, capable, simple-to-operate, very low-power-consumption QRP rig still has great appeal even with availability of the overwhelming capability of the KX3. I'd like to have both. ...and the KX2 slot in the Elecraft line needs filling! :-) Mike / KK5F __ 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 norrislawfi...@gmail.com __ 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 arch...@mail-archive.com
[Elecraft] Elecraft KX1 - a builder's review
Basic KX1 gives more power. I am not surprised for power output over 4W. However, with the addition of KXB3080 module, the low pass filter LPF1 is a compromise, it will be hard to squeeze power up to 4 watts. 73 Johnny VR2XMCKX1 # 2839 寄件人︰ Eric Norris norrislawfi...@gmail.com 收件人︰ Mike Morrow k...@earthlink.net 副本(CC)︰ elecraft@mailman.qth.net 傳送日期︰ 2014年12月17日 (週三) 2:55 PM 主題︰ Re: [Elecraft] Elecraft KX1 - a builder's review My KX1 puts out over 5 watts when powered with an A123 LiFePO pack, and will run longer than I can from a small.4S1P battery. It fits perfectly into a Pelican 1060 box, which makes it nearly indestructible when using it to soften face plants while xc skiing. It's perfect as is, though a 40-20-15 version would be interesting. I'd like to see a single-band KX0, the size of a Rockmite, a full 1-2 watts out, with attendant Elecraft mojo. THAT would be cool. It could use an outboard T1 for tuning wires. 73 Eric WD6DBM Mike Morrow k...@earthlink.net wrote: Phil wrote: A reasonable assessment, Johnny. Of course the KX1 was designed as the ultimate Trail-Friendly Radio (TFR) and that it is! I always preferred the K1 versus the KX1. I must have 15m, plus the KX1 really needs a four-pole IF filter, IMO. I have a dream of a KX2 that is a KX1 descendant, with four-pole filter, 15m and maybe other bands not on a KX1, back-lit LCD vs LED, noise blanker, and everything required for the band coverage laid out from the start in the design, and not as an after- thought. (As has been often noted, the KX1 is not particularly easy rig to build with all the options.) I'd also like to see 5 watt output on all bands with 14 vdc power. Perhaps it could even be a factory-built SMT design. Finally, that KX2 would need an ATU capable of far more than 254 combinations of reactance insertion. The KAT1's 1022 combinations would be minimum, IMHO. A small, capable, simple-to-operate, very low-power-consumption QRP rig still has great appeal even with availability of the overwhelming capability of the KX3. I'd like to have both. ...and the KX2 slot in the Elecraft line needs filling! :-) Mike / KK5F __ 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 arch...@mail-archive.com
[Elecraft] Elecraft KX1 - a builder's review (some impriovements in the manuals required)
Irecently built a Elecraft KX1 for a local ham in VR2 who cannot DIY himself dueto some reasons. This KX1 comes with theKXB3080 30/80 module and KXAT1 ATU module. I would like to share with you some of my experience and views duringthe construction process. Theconstruction of the basic KX1 was straight forward and required less skill thanK2. Although the manual of KX1 is wellwritten, it does not clearly take into account the possibly of the futureconstruction of KXB3080 and KXAT1. Thisis the major deficiency of the manual and I would not expect that from Elecraftafter constructing many K2s in the past. Thespace tolerance with the installation of KXB3080 and KXAT1 is very tightespecially near the low pass filters L1 L2 area. Therefore, the construction manual of KX1should forth warn and draw the builder great attention: - Page 32 of the KX1 manual, C46-C49, C54 should be soldered at the top (i.e.component) side with all the legs cut flush at the bottom side. This will give more space for the futureinstallation of LPF1 (tiny PCB) of KXB3080. - Don W3FPR had kindly sent me one page note of ‘building KXB3080 withoutunsoldering (almost)’ which was extremely useful. This literature should be included in the KX1manual. The tinyLPF1 pcb of KXB3080 is to be situated in the tight space formed between the C46-C49 C54 area of KX1 and R3-R4 C10 area of KXAT1. Therefore, Page 3 of KXAT1 manual, R3, R4 C10 should be soldered on the component side and cut flush on the otherside. To summarize: - Construction of KXB3080 especially the LPF1 low pass filter required a higherskill level similar to K2 and definitely nothing like beginner’s level; - Don W3FPR literature mentioned above should be included with the KX1manual as a standard reference. Finally,back to performance, KX1 is a real nice little QRP radio with good RXselectivity and sensitivity. However, the radio is very expensive when you add up the KXB3080 and KXAT1. Try to compare with K1, K2 and KX3 in termsof price Vs performance before making your purchase decision. 73, Johnny VR2XMC __ 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 arch...@mail-archive.com
[Elecraft] Elecraft KX1 - a builder's review (some impriovements in the manuals required)
Re-sent in a better text format: I recently built a Elecraft KX1 for a local ham in VR2 who cannot DIY himself dueto some reasons. This KX1 comes with the KXB3080 30/80 module and KXAT1 ATU module. I would like to share with you some of my experience and views during the construction process. The construction of the basic KX1 was straight forward and required less skill than K2. Although the manual of KX1 is well written, it does not clearly take into account the possibly of the future construction of KXB3080 and KXAT1. This is the major deficiency of the manual and I would not expect that from Elecraft after constructing many K2s in the past. The space tolerance with the installation of KXB3080 and KXAT1 is very tight especially near the low pass filters L1 L2 area. Therefore, the construction manual of KX1 should forth warn and draw the builder great attention: 1. - Page 32 of the KX1 manual, C46-C49, C54 should be soldered at the top (i.e.component) side with all the legs cut flush at the bottom side. This will give more space for the future installation of LPF1 (tiny PCB) of KXB3080. 2. - Don W3FPR had kindly sent me one page note of ‘building KXB3080 without unsoldering (almost)’ which was extremely useful. This literature should be included in the KX1 manual. The tiny LPF1 pcb of KXB3080 is to be situated in the tight space formed between the C46-C49 C54 area of KX1 and R3-R4 C10 area of KXAT1. Therefore, Page 3 of KXAT1 manual, R3, R4 C10 should be soldered on the component side and cut flush on the other side. To summarize: 1. - Construction of KXB3080 especially the LPF1 low pass filter required a higher skill level similar to K2 and definitely nothing like beginner’s level; 2. - Don W3FPR literature mentioned above should be included with the KX1 manual as a standard reference. Finally, back to performance, KX1 is a real nice little QRP radio with good RX selectivity and sensitivity. However, the radio is very expensive when you add up the KXB3080 and KXAT1. Try to compare with K1, K2 and KX3 in terms of price Vs performance before making your purchase decision. 73, Johnny VR2XMC __ 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 arch...@mail-archive.com
