Hi Roger
Well, with a 8m wire earthed at both ends
as an earth electrode antenna I can get S5/6 sigs into G3XIZ who is 3km away,
using his old CW TX with an output of around 60w. No
resonant coils, no HV issues. OK so its not Dx but we manage 8wpm CW QSOs.
You’ve shown what can be done with
500 and QRPp so lets see what can be done on 137.7
I will be QRSS10 on 137.7 later this
evening, though if last night is anything to go by then all I’ll be doing
is drowning in the static!
With best regards
Jim
Dr. James Cowburn G7NKS
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Thank you Gary.
Yes, I hope to give 136kHz a good go considering my small garden and QRP
leanings. Last autumn and winter I surprised myself (and others) by achieving
credible results on 500kHz with an ultra-simple QRP station. It will be tougher
on 136kHz certainly, but I start with low expectations that, with some
perseverance, may be exceeded.
Next on the cards is the transverter design and build. There are plenty of good
circuits to grab ideas from, plus I have some of my own. The efficient small
antenna will be the really big challenge.
73s
Roger G3XBM
On 18 July 2010 18:51, Gary
- G4WGT <[email protected]>
wrote:
Roger,
Congratulations for Txing a 136 kHz signal, however small, don't let
anyone put you off (no names mentioned) we all have to start somewhere. My
first 136 kHz Tx was 5 watts & an 80m inverted V antenna, I didn't have any
QSO's with that but it was a start.
You will make progress & I will look forward to Rxing your signal
in the near future & a possible QSO.
Gary - G4WGT.
On 18 July 2010 17:14, Roger Lapthorn <[email protected]>
wrote:
This is the very
beginning of my journey onto 136kHz....
For anyone very very
close to Burwell, Cambs, JO02DG, I'm putting a QRP 10wpm keyer-generated CW
message (later to be changed to QRSS3) out on 136.96kHz CW into my earth
electrode antenna. Power from the TX is about 500mW, so ERP is just a few
microwatts at most.
I'd appreciate reports, but be amazed to get any until I start to run some more
power into a real antenna.
73s
Roger G3XBM
--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM GQRP 1678 ISWL G11088
--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM GQRP 1678 ISWL G11088
