RE: LF: G3KEV

["James Cowburn" <james.cowburn@virgin.net>]

Do you need a linear with your 706 Mal?   I run WSPR on my 706mk2G barefoot, about 20 watts out the back withclearly only a few milliwatts radiated due to the inefficient vertical here at G7NKS. (7m/30m inv L, with marginal earthing)

 

I still get reports out to 1200km plus and at SNRs not dissimilar to yours

 

My record was Lubos @ some 1600km about 3 years ago!

 

The 706 series are great radios for 475kc wspr

 

73s

 

Jim G7NKS

 

 

 

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From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Mal Hamilton
Sent: 06 January 2016 15:54
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: G3KEV

 

Good guess Stefan 

Small Lin amp after 706

Irfp 450 only12v on Drain for now es works well

73 mal

Sent from my iPhone

On 5 Jan 2016, at 20:29, DK7FC <selberdenken@posteo.de> wrote:

Hi Mal,
15 spots:

Timestamp	Call	MHz	SNR	Drift	Grid	Pwr	Reporter	RGrid	km	az
2016-01-05 19:54	G3KEV	0.475700	-25	0	IO94sh	0.002	DF2JP	JO31hh	581	122
2016-01-05 19:48	G3KEV	0.475702	-14	0	IO94sh	0.002	DL-SWL	JO52hp	756	100
2016-01-05 19:22	G3KEV	0.475699	-18	0	IO94sh	0.002	DJ0ABR	JN68nt	1118	118
2016-01-05 19:22	G3KEV	0.475700	-19	0	IO94sh	0.002	F5WK	JN18hp	665	160
2016-01-05 19:22	G3KEV	0.475701	-26	0	IO94sh	0.002	DK7FC	JN49ik	829	127
2016-01-05 19:02	G3KEV	0.475699	-28	0	IO94sh	0.002	F6GEX	IN97na	811	182
2016-01-05 19:02	G3KEV	0.475700	-23	0	IO94sh	0.002	PI4THT	JO32kf	540	112
2016-01-05 16:52	G3KEV	0.475700	-24	-1	IO94sh	0.002	G0LUJ	IO83ls	179	251
2016-01-05 16:18	G3KEV	0.475702	-17	0	IO94sh	0.002	PA7EY	JO22jj	408	119
2016-01-05 15:42	G3KEV	0.475699	-28	0	IO94sh	0.002	G0VQH	JO02fe	244	165
2016-01-05 15:42	G3KEV	0.475700	-25	0	IO94sh	0.002	DH5RAE	JN68qv	1126	117
2016-01-05 15:42	G3KEV	0.475704	-1	0	IO94sh	0.002	M0LMH	IO93gx	75	241
2016-01-05 15:42	G3KEV	0.475699	-25	0	IO94sh	0.002	PE1RKT	JO22fb	412	125
2016-01-05 15:26	G3KEV	0.475700	-17	0	IO94sh	0.002	OR7T	JO20ix	509	135
2016-01-05 15:26	G3KEV	0.475700	-19	0	IO94sh	0.002	PA3ABK/2	JO21it	443	127

Looks like 17 dB QRO. What have you done? A simple class A amp stage (2N3053 et. al.) behind the IC706 ?

73, Stefan