NO3M

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Sept 2017 Preliminary Sprint Results – NO3M wins

This was my first NA Sprint win!  Conditions and activity were down, but  slugged it out with decent first and third hour rates.  Always an honor to compete with the sharpest group of CW contest ops in the country.

Top Ten Scores
Call	Score	BndChgs	Qs Lost	00Z	01Z	02Z	03Z
NO3M	13,545	148	4	107	73	87	48
N9RV	13,288	132	1	108	62	72	60
K4RO	13,112	142	5	94	73	79	52
N5KO	12,728	94	4	99	70	66	61
N4AF	12,716	132	8	101	73	66	49
W9RE	12,470	118	5	96	69	78	47
N3BB	12,384	88	3	100	66	68	54
K0RF	12,364	76	7	81	71	74	55
AA3B	11,792	121	2	91	61	68	48
N6TV	11,726	72	0	101	69	63	53

Model 28 KSR Teletype

Picked up this nice Model 28 KSR Teletype machine last week from a ham in EPA.  Should be lots of fun operating in future RTTY contests.

Video of the M28 in action (believe it is copying the W1AW RTTY bulletin on 40M):

1930s Transmitter Update

dscf7164-croppedThis year’s Field Day transmitter employed a 59-59 (ECO/Buffer) exciter and Push-Pull 804 amplifier.  While it worked relatively well for the circuit in use, I wanted to get better performance out of the exciter.  Tuning was very critical at each stage due to insufficient isolation (incomplete screening in the 59s), causing chirp and in some cases a raspy note when optimal settings were not used.  A particular “good” setting of the tank tuning at each stage was also only good for 10-15 kc before re-tuning was needed to clean up the signal again.

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