SM6FHZ 1296 MHz EME

The antenna for 1296 MHz EME is my 5.5 m dish with a f/D of 0.37.

I started with using the old W2IMU dual mode feed horn for 23 cm  EME. The dish is heavy under illuminated, but the antenna temperature is good with this feed. The gain is affected by at least 1 dB. Next step will be to look into making a more optimal feed for this dish on 23 cm.

The transmitter chain consists of an IC-756pro3  (I used my old, 1983 vintage, ICOM IC-751 before) driving a UHF-Units (SM6DJH) transverter followed by a NEL-1306 pre-driver to a 8907 driver delivering about 30 watts. The power amplifier is a TH338 (or YD1277) in a OE9PMJ cavity delivering about 400 watts RF. 

TH338 23 cm PA 23 cm TH338 cavity

Who said we were into "wireless"?

23 cm PA in rack The 23 cm TH338 PA in the rack

Feeder loss is about 1.1 dB using 7 m of 1 1/4" foam heliax + 0.3 m of 1/2" super flex heliax + 6 m of 7/8" foam heliax + 1 m of 1/2" super flex heliax. I need to work more on the feeder loss.

The receiver chain starts with a Teledyne CS33S10 SMA-relay for protection. Preamplifier is a NE32584 in a G4DDK design. 

SM6FHZ 23 cm VLNA

About 20 m of RG-213 cable run from the feed mounted pre-amp to a GIGATRONIX 3-pole interdigtal filter (40 MHz BW) into the transverter.

Presently I am getting 7.2 dB ground to cold sky noise with the dish at a -4 degree elevation angle. The ground to cold sky with the feed horn alone measures 7.7 dB, slightly more than with the dish. I interpret these results as my 25 years old W2IMU feed still have some resistive losses and need some more refreshing work done on it. This is good news, as the first round of refreshing actions made good improvement (from 6 dB to 7.7 dB of ground to cold sky noise with the feed horn alone) and when the second round of refreshing work has been done the complete system will hopefully be improved to a level I did not expect to be possible.

Sun to cold sky noise is presently more than 15.3 dB at a SFI of 71.

1296 MHz ground noise   23 cm ground noise on October 21, 2012

The above picture show the ground noise on 1296 MHz going from +40 deg elevation (the -69.5 dB noise value) down to -10 deg back up to +10 deg (noise values around -68 to -68.5 dB) and then moving the dish from Az=120 deg to Az =225 deg and ending with the service position at El=0 deg (noise value of -63.5 dB).

Operating 23 cm EME on October 9th, 2010 documented by SM6CKU.

SM6FHZ 1296 MHz EME initials list (2012-11-05), initials from 1984 to 1988 were worked from JO66EW with my old EME rig:

Initial # Call Date UTC Time UTC Square Square # Field # EME DXCC # State # Mode Distance QSL Remarks
1 OE9XXI 1984-09-22 10:00 JN47UL 1 1 JN 1   CW 1068 OK Eu
2 SM6CKU 1984-09-22 10:40 JO67CK 2 2 JO 2   CW 56 OK  
3 K2UYH 1984-09-23 11:05 FN20OF 3 3 FN 3 1 NJ CW 6222 OK Na
4 PA0SSB 1984-09-23 14:10 JO21AH 4   4   CW 828 Sent  
5 VE7BBG 1984-09-23 14:50 CN88DT 5 4 CN 5   CW 7603 OK  
6 OK1KIR 1984-11-18 07:00 JN79DW 6   6   CW 790 OK  
7 HB9BM 1984-11-18 07:45 JN47JM     7   CW 1075 OK  
8 GW3XYW 1984-11-18 08:00 IO71XR 7 5 IO 8   CW 1210 OK  
9 G3LTF 1984-12-08 21:20 JO01BS 8   9   CW 980 OK  
10 LX1DB 1984-12-08 22:50 JN39CO 9   10   CW 913 OK  
11 F2TU 1985-01-05 21:50 JN38LG 10   11   CW 1032 OK  
12 OE9FKI 1985-01-05 23:20 JN47TG         CW 1091 OK  
13 K4QIF 1985-01-06 00:50 FM16RU 11 6 FM   2 VA CW 6607 OK  
14 SP5CIC/SM0 1985-01-06 01:30 JO99AK 12       CW 434 OK  
15 G4CCH 1985-02-02 20:55 IO93QL 13       CW 910 OK  
16 G3WDG 1985-02-03 01:00 IO92RG 14       CW 980 OK  
17 DJ8QL 1985-02-03 02:00 JN49DX 15   12   CW 820 OK  
18 ZL3AAD 1985-03-02 11:00 RE66HL 16 7 RE 13   CW 17940 OK First SM-ZL
19 VK2AMW 1985-03-02 13:00 QF55KN 17 8 QF 14   CW 16024 OK Oc
20 SM2JCP 1985-03-29 21:30 KP05SF 18 9 KP     CW 1045 OK  
21 DK0UKW 1985-03-29 21:10 JO31OK 19       CW 698 OK  
22 YU1AW 1985-05-04 21:25 KN04IG 20 10 KN 15   CW 1526 OK  
23 VK5MC 1985-05-26 12:10 QF02EJ 21       CW 15672 OK  
24 W7GBI 1985-05-26 22:15 DM43AM 22 11 DM   3 AZ CW 8704 OK  
25 HB9SV 1985-06-23 16:00 JN45LV 23       CW 1251 OK  
26 HB9RM 1985-10-25 23:15 JN36BE 24       CW 1271 OK  
27 SM3AKW 1986-10-26 06:00 JP92AO 25 12 JP     CW 706 OK  
28 OE5JFL 1988-03-26 18:05 JN68RL 26       CW 944 OK  
29 F1HDI 1988-03-26 18:55 JN17CJ 27       CW 1267 OK  
30 DL0SHF 2008-11-15 16:50 JO54BH 28       CW 361 Sent  
31 RA3AQ 2008-11-15 17:14 KO85SR 29 13 KO 16   CW 1574 Sent  
32 UT5JCW 2008-11-15 17:51 KN64SO 30   17   CW 2061 OK  
33 IK3COJ 2008-11-15 18:05 JN65BN 31   18   CW 1316 OK  
34 SP6JLW 2008-11-15 18:12 JO80JK 32   19   CW 832 OK  
35 VK3UM 2008-11-15 18:48 QF22RO 33       CW 15972 OK  
36 VK3NX 2008-12-07 13:11 QF21EX 34       CW 15960 OK  
37 UR5LX 2008-12-13 17:38 KO70WK 35       CW 1739 OK  
38 DF3RU 2008-12-13 18:45 JN59UL 36       CW 881 OK  
39 HB9IZ 2008-12-13 18:55 JN47KF         CW 1150 OK  
40 JA4BLC 2008-12-13 19:57 PM65NM 37 14 PM 20   CW 8336 OK As
41 OH2DG 2008-12-13 20:45 KP30CK 38   21   CW 885 OK  
42 I5MPK 2008-12-13 21:13 JN53JU 39       CW 1508 Sent  
43 SV3AAF 2008-12-13 21:28 KM17KO 40 15 KM 22   CW 2342 Sent  
44 LA9NEA 2008-12-13 21:50 JO59DX 41   23   CW 303 OK  
45 W5LUA 2008-12-14 02:39 EM13QC 42 16 EM   4 TX CW 7976 OK  
46 N2UO 2008-12-14 02:58 FN20QF         CW 6171 Sent  
47 WA6PY 2008-12-14 03:08 DM13LA 43     5 CA CW 8909 OK  
48 WW2R 2008-12-14 03:35 EM13QD         CW 7972 OK  
49 W9IIX 2008-12-14 03:50 EN61DR 44 17 EN   6 IL CW 6740 OK  
50 SM4DHN 2009-01-10 15:17 JP60VD 45       CW 324 Sent  
51 SP7DCS 2009-01-10 17:15 JO91MN 46       CW 794 OK  
52 IW2FZR 2009-01-10 17:54 JN56BE 47       CW 1253 Sent  
53 HB9BBD 2009-01-10 20:12 JN47EE         CW 1161 Sent  
54 PA3FXB 2009-03-01 15:53 JO33KC 48       CW 576 OK  
55 VE6TA 2009-03-01 16:40 DO33GS 49 18 DO     CW 6731 OK  
56 VK4AFL 2009-03-07 14:12 QG62OJ 50 19 QG     CW 15515 OK  
57 OZ4MM 2009-03-07 17:32 JO55GH 51   24   CW 247 OK  
58 SM2CEW 2009-03-07 19:53 KP15CR 52       CW 1073 Sent  
59 K2DH 2009-03-07 20:12 FN12FO 53     7 NY CW 6132 Sent  
60 NA4N 2009-03-07 22:07 FM18AQ 54       CW 6486 OK  
61 G3LTF 2009-04-04 13:45 IO91GG 55       CW 1104 OK  
62 DF1SR 2009-04-04 18:07 JN48JQ 56       CW 991 OK  
63 ON4BCB 2009-04-04 20:18 JO21HC     25   CW 846 OK  
64 VE3KRP 2009-04-04 21:50 EN58IJ 57       CW 6239 OK  
65 OK3RM 2009-04-04 21:58 JN69MS 58       CW 851 Sent  
66 IZ1BPN 2009-05-01 13:29 JN34OT 59       CW 1438 Sent  
67 DL1YMK 2009-05-01 16:00 JO31QX         CW 671 OK  
68 HB0/DF1SR 2009-05-01 18:44 JN47SD     26   CW 1152 OK  
69 K1RQG 2009-05-02 19:22 FN54PP 60     8 ME SSB 5480 Sent  
70 K5AZU 2009-05-02 20:17 EM40SN 61     9 LA CW 7891 Sent  
71 RW6AG 2009-05-02 21:21 KN95NA 62       CW 2319 OK  
72 K3JNZ 2009-05-02 21:47 EN41FK 63     10 IA CW 6958 Sent  
73 OK1CA 2009-05-30 10:53 JO70GM         CW 783 OK  
74 ES5PC 2009-05-30 11:14 KO38HJ 64   27   CW 875 OK  
75 F5JWF 2009-05-30 12:20 JN26WE 65       CW 1314 OK  
76 PA3CSG 2009-05-30 12:36 JO21WD         CW 799 OK  
77 LZ2US 2009-05-30 12:51 KN13RJ 66   28   CW 1753 OK First SM-LZ
78 PI9CAM 2009-05-30 13:33 JO32ET         CW 621 OK  
79 MI/DL1YMK 2009-05-30 13:52 IO74DU 67   29   CW 1131 OK  
80 RK3WWF 2009-05-30 14:37 KO72QI 68       CW 1594 Sent  
81 IQ4DF 2009-05-30 16:41 JN54VJ 69       CW 1446 Sent  
82 OK1DFC 2009-05-30 18:01 JN79GW         CW 847 Sent  
83 K5JL 2009-05-30 19:16 EM15CP 70     11 OK CW 7796 Sent  
84 ON7UN 2009-05-30 19:25 JO21NG         CW 813 OK  
85 NY2Z 2009-05-30 20:00 FN02LA 71       CW 6262 OK  
86 K5SO 2009-05-30 20:34 DM66XA 72     12 NM CW 8148 Sent  
87 JA6CZD 2009-05-31 12:26 PM53FM 73       CW 8412 Sent  
88 JA6AHB 2009-05-31 12:45 PM53CP         CW 8388 OK  
89 DL4MEA 2009-05-31 15:36 JN58RI 74       CW 1006 Sent  
90 IK3MMB 2009-05-31 17:00 JN45PQ         CW 1315 Sent  
91 DL3EBJ 2009-05-31 18:08 JO31CD         CW 789 Sent  
92 OE9ERC 2009-06-27 18:02 JN47UL         SSB 1113 Sent  
93 K0C 2009-06-27 18:24 DM67ED 75     13 CO SSB 8109 OK K0YW
94 LZ1DX 2009-07-18 08:14 KN22TK 76       CW 1923 Sent  
95 DF9QX 2009-07-18 08:53 JO42HD 77       CW 622 Sent  
96 SK6OSO 2009-07-19 05:38 JO57XJ 78       CW 2 OK  
97 SM3JQU 2009-08-15 09:32 JP82QM 79       CW 645 Sent  
98 OZ6OL 2009-08-15 10:45 JO65DJ 80       CW 223 Sent  
99 K8EB 2009-08-16 09:12 EN73CB 81     14 MI CW 6526 OK  
100 SV1BTR 2009-09-12 06:15 KM18NO 82       CW 2242 Sent  
101 VA7MM 2009-09-12 10:26 CN89OG 83       CW 7473 OK  
102 EA2LU 2009-09-13 08:19 IN92ET 84 20 IN 30   CW 1883 OK  
103 W4OP 2009-09-13 09:45 EM85JE 85     15 NC CW 7081 Sent  
104 G4RGK 2009-09-13 10:20 IO91ON         CW 1048 OK  
105 N0OY 2009-10-10 06:44 EM18CT 86     16 KS CW 7502 Sent  
106 OH0/DL1YMK 2009-10-10 09:18 JP90SF 87   31 CW 539 OK  
107 W6YX 2009-10-10 10:30 CM87VK 88 21 CM     CW 8656 Sent  
108 UA3PTW 2009-10-11 06:54 KO93BS 89     CW 1687 OK  
109 OK2DL 2010-05-22 13:59 JN79WL         CW 918    
110 SM4IVE 2010-05-22 17:16 JO79SD 90       CW 286 OK  
111 R2/DL1YMK 2010-05-22 19:26 KO04FV 91   32   CW 596 OK  
112 LA8LF 2010-10-02 07:27 JO59BR         CW 280    
113 K5GW 2010-10-02 08:52 EM12QX 92       CW 7988 OK  
114 N4PZ 2010-10-02 09:20 EN52GA 93       CW 6803 OK  
115 DL6SH 2010-10-02 10:04 JN48SW         CW 954 OK  
116 PA0BAT 2010-10-02 10:35 JO31FX         CW 699    
117 AL7RT 2010-10-02 12:31 BP64BV 94 22 BP 33 17 AK CW 6333    
118 HB9Q 2010-10-03 06:35 JN47CG         CW 1154 OK  
119 UT2EG 2010-10-03 07:12 KN67PW 95       CW 1773 OK  
120 S59DCD 2010-10-03 07:55 JN76NL 96   34   CW 1233    
121 IK2RTI 2010-10-09 11:09 JN55AD 97       CW 1369 OK  
122 YO8BCF 2010-10-09 11:23 KN36KN 98   35   CW 1575 OK  
123 F5KUG 2010-10-09 12:03 JN03PO 99       CW 1705 OK  
124 LY/DL1YMK 2011-06-04 08:48 KO06MB 100   36   CW 575 OK  
125 RA3AUB 2011-06-04 09:16 KO84QP 101       CW 1604 OK  
126 F5SE/p 2011-06-05 13:18 JN29HA 102       CW 1051 OK  
127 9A5AA 2011-06-05 15:08 JN75XT 103   37   CW 1317    
128 PY2BS 2011-06-05 16:05 GG66PJ 104 23 GG 38   CW 10498 OK Sa
129 SM7FWZ 2011-07-27 13:32 JO77EQ 105       CW 148 OK  
130 SM6CSO 2011-07-29 08:09 JO67CE         CW 27    
131 VK2JDS 2011-07-30 04:38 QF46PV 106       CW 15822    
132 VK4CDI 2011-07-30 05:09 QG52XH 107       CW 15470 OK  
133 JA1WQF 2011-07-30 07:34 QM05AV 108 24 QM     CW 8585 OK  
134 IK1MTZ 2011-09-25 09:54 JN35UB 109       CW 1403    
135 I1NDP 2011-10-22 08:02 JN45AL         CW 1352 OK  
136 PA3DZL 2011-10-22 11:38 JO21HM         CW 807 OK  
137 HB9BCD 2011-10-23 07:22 JN45LV         CW 1295    
138 IS0/OK5EME 2011-10-23 08:38 JN41SA 110   39   CW 1829 OK  
139 EA3UM 2011-10-23 08:59 JN01XG 111       CW 1930    
140 PA7JB 2011-11-20 07:58 JO22MD         CW 733 OK  
141 SP7JSG 2011-11-20 08:29 KO01BW 112       CW 803    
142 CT1DMK 2011-11-20 09:47 IN50RO 113   40   CW 2375    
143 TK/DL1YMK 2012-05-20 11:58 JN41LQ     41   CW 1760 OK  
144 UA4AAV 2012-05-26 12:45 LO21FC 114 25 LO     CW 2206    
145 OH0/OH3TR 2012-05-26 15:03 JP90SF         CW 539    
146 OK1CS 2012-05-26 16:14 JO70FD         CW 823 OK  
147 WD5AGO 2012-05-26 18:41 EM26CB 115       CW 7659    

http://www.2ingandlin.se/FHZ_EME.htm

The background sound on this page is a recording made by IW2FZR, Dario,  in March 2009 on 23 cm EME. Thank you Dario.


Updated November 5th, 2012.              http://www.2ingandlin.se/SM6FHZ.htm