Author Archives: RARC Advisor

November 21st meeting

Our November meeting is coming quick. We will be talking about antennas and the basics. Please feel free to bring your antenna wows & questions. Herman & Don our club advisor will show different types of antennas with an explanation of what, where, & why.

Again, this will be interactive meeting from a rubber duck to a many element beam discussion forum.

Don’t be a dummy load and miss the gain of knowledge.

A sad day

Sept. 11th, 2018

It’s Time to Retire.

It’s been a wonderful 36 years for us at Radio City and we have decided to retire and close Radio City. We are so thankful for the many years of support and we have enjoyed working you, our customers. The technical, intelligent and polite conversations plus advice have been invigorating, thus making this decision extremely difficult for us.

We appreciate all the teachers, Elmers, VE examiners, ham and astronomy clubs efforts in growing new ham radio operators and amateur astronomers into our special community.

We will also miss going to and supporting amateur radio and astronomy clubs all over MN and IA at their events. We will greatly miss all the friendships we have been privileged to maintain with many of our customers.

We plan to exit by this year’s end or a bit sooner as we empty our shelves of new and used materials.

Upcoming Events:

Sidewalk Sale:

Our final sidewalk sale is this Saturday Sept 15th. We are digging deep for this event. It will be held rain or shine. Currently forecasts are calling for a mild 85F with just a 20% chance of showers.

Final Goodbye Tour:

We will be at Smartfest in Cologne, MN on Saturday September 22nd. We will also be in Carlton MN for their Fallfest on Saturday September 29th.

Goodbye Party:

Please come on by on Saturday October 6thfor our good bye party. We will of course have cake and coffee for everybody.

Other Necessary Details:

Service:

We will complete servicing items we currently have in the service dept. We will not be accepting any additional ‘Out of warranty’ items. ‘In warranty’ items will be still be processed by Radio City per normal until about October 31st, 2018.

Consignment :

We will no longer accept more items for consignment. All items that have NOT been sold need to be picked up the week of Oct 13th, 2018. We will consider all items not picked up by then to be abandoned.

In closing we will very much miss all of you and perhaps there is someone out there interested in running the store under New Management.

Thanks again for all your support,

Dan and Maline Fish

 

Basic operations

Basic Ham Radio Operations…

Simplex…

      Communications method to talk directly to another station with no additional aides. 

 

Equipment need:

Is each person needs a transmitter & receiver on the same frequency.

 

(KA∅AAA) TX & RX <————-> 146.520

(KB∅BBB) TX & RX <————-> 146.520

 

Advantages: more private, more local, can be used anywhere, & simple programming

Disadvantages: needs high power, not used a lot, & limited range

 

 

Half Duplex… 

     A common repeater system. This has one common TX frequency & one common RX frequency. 

 

Equipment needed:

Everyone transmits on one frequency & everyone receives on second frequency with another source to receive everyone’s transmitted signals on one frequency and send it back out to another set frequency. 

 

(KA∅AAA) TX ———–> 449.475 (Repeater input)

(KA∅AAA) RX <———- 444.475 (Repeater output)

(KB∅BBB) TX ———–> 449.475 (Repeater input)

(KB∅BBB) RX <——— 444.475 (Repeater output)

 

Advantages: If you able to hit the repeater you can use all the repeaters resources allowing an extended ranges to a weak signals or unheard directly, have more likely to have another person on, & less power needed to talk.

Disadvantages: Repeater must be in a good location, can be busy, doesn’t work everywhere, & may have restricted access.

 

 

Full Duplex… 

     This is most common with telephone calls. You can talk & listen and the other person talk & listen at the same time.

 

Equipment needed:

A low powered transmitter on one band and a receiver another band. with everything reversed on the second station.

 

(KA∅AAA) TX ——–> 147.555

(KA∅AAA) RX <——– 446.000

(KB∅BBB) TX ——–> 446.000

(KB∅BBB) RX <——– 147.555 

 

 Advantages: Have real time updates, may be more exclusive, you can throw off the other persons concentration, send multiple information simultaneously, & kind of fun.

Disadvantages: each person needs 2 radios on 2 different bands, your location needs to be close to the other station, you can get possible feedback, This is harder on the radios & takes a bit of skill.

 

 

Hope this helps everyone. If you want a topic to have posted please email us at: W0RRC.RARC@Gmail.com

2 Meters repeater pairs and simplex

VHF 2 meters FM Repeater Pairs

Repeater pairs 145MHz

Pair #

RX Freq

TX Freq

1

145.1100

144.5100

2

145.1300

144.5300

3

145.1500

144.5500

4

145.1700

144.5700

5

145.1900

144.5900

6

145.2100

144.6100

7

145.2300

144.6300

8

145.2500

144.6500

9

145.2700

144.6700

10

145.2900

144.6900

11

145.3100

144.7100

12

145.3300

144.7300

13

145.3500

144.7500

14

145.3700

144.7700

15

145.3900

144.7900

16

145.4100

144.8100

17

145.4300

144.8300

18

145.4500

144.8500

19

145.4700

144.8700

20

145.4900

144.8900

20KHz spacing

Repeater pairs 146MHz – 147MHz

Pair#

RX Freq

TX Freq

Pair #

RX Freq

TX Freq

21

146.6100

146.0100

47

147.0000

147.6000

22

146.6250

146.0250

48

147.0150

147.6150

23

146.6400

146.0400

49

147.0300

147.6300

24

146.6550

146.0550

50

147.0450

147.6450

25

146.6700

146.0700

51

147.0600

147.6600

26

146.6850

146.0850

52

147.0750

147.6750

27

146.7000

146.1000

53

147.0900

147.6900

28

146.7150

146.1150

54

147.1050

147.7050

29

146.7300

146.1300

55

147.1200

147.7200

30

146.7450

146.1450

56

147.1350

147.7350

31

146.7600

146.1600

57

147.1500

147.7500

32

146.7750

146.1750

58

147.1650

147.7650

33

146.7900

146.1900

59

147.1800

147.7800

34

146.8050

146.2050

60

147.1950

147.7950

35

146.8200

146.2200

61

147.2100

147.8100

36

146.8350

146.2350

62

147.2250

147.8250

37

146.8500

146.2500

63

147.2400

147.8400

38

146.8650

146.2650

64

147.2550

147.8550

39

146.8800

146.2800

65

147.2700

147.8700

40

146.8950

146.2950

66

147.2850

147.8850

41

146.9100

146.3100

67

147.3000

147.9000

42

146.9250

146.3250

68

147.3150

147.9150

43

146.9400

146.3400

69

147.3300

147.9300

44

146.9550

146.3550

70

147.3450

147.9450

45

146.9700

146.3700

71

147.3600

147.9600

46

146.9850

146.3850

72

147.3750

147.9750

73

147.3900

147.9900

15KHz spacing

440 Repeater pairs

440MHz Repeater Pairs

Pair#
RX Freq
TX Freq
.
Pair #
RX Freq
TX Freq
.
Pair #
RX Freq
TX Freq
1
442.0000
447.0000
41
443.0000
448.0000
81
444.0000
449.0000
2
442.0250
447.0250
42
443.0250
448.0250
82
444.0250
449.0250
3
442.0500
447.0500
43
443.0500
448.0500
83
444.0500
449.0500
4
442.0750
447.0750
44
443.0750
448.0750
84
444.0750
449.0750
5
442.1000
447.1000
45
443.1000
448.1000
85
444.1000
449.1000
6
442.1250
447.1250
46
443.1250
448.1250
86
444.1250
449.1250
7
442.1500
447.1500
47
443.1500
448.1500
87
444.1500
449.1500
8
442.1750
447.1750
48
443.1750
448.1750
88
444.1750
449.1750
9
442.2000
447.2000
49
443.2000
448.2000
89
444.2000
449.2000
10
442.2250
447.2250
50
443.2250
448.2250
90
444.2250
449.2250
11
442.2500
447.2500
51
443.2500
448.2500
91
444.2500
449.2500
12
442.2750
447.2750
52
443.2750
448.2750
92
444.2750
449.2750
13
442.3000
447.3000
53
443.3000
448.3000
93
444.3000
449.3000
14
442.3250
447.3250
54
443.3250
448.3250
94
444.3250
449.3250
15
442.3500
447.3500
55
443.3500
448.3500
95
444.3500
449.3500
16
442.3750
447.3750
56
443.3750
448.3750
96
444.3750
449.3750
17
442.4000
447.4000
57
443.4000
448.4000
97
444.4000
449.4000
18
442.4250
447.4250
58
443.4250
448.4250
98
444.4250
449.4250
19
442.4500
447.4500
59
443.4500
448.4500
99
444.4500
449.4500
20
442.4750
447.4750
60
443.4750
448.4750
100
444.4750
449.4750
21
442.5000
447.5000
61
443.5000
448.5000
101
444.5000
449.5000
22
442.5250
447.5250
62
443.5250
448.5250
102
444.5250
449.5250
23
442.5500
447.5500
63
443.5500
448.5500
103
444.5500
449.5500
24
442.5750
447.5750
64
443.5750
448.5750
104
444.5750
449.5750
25
442.6000
447.6000
65
443.6000
448.6000
105
444.6000
449.6000
26
442.6250
447.6250
66
443.6250
448.6250
106
444.6250
449.6250
27
442.6500
447.6500
67
443.6500
448.6500
107
444.6500
449.6500
28
442.6750
447.6750
68
443.6750
448.6750
108
444.6750
449.6750
29
442.7000
447.7000
69
443.7000
448.7000
109
444.7000
449.7000
30
442.7250
447.7250
70
443.7250
448.7250
110
444.7250
449.7250
31
442.7500
447.7500
71
443.7500
448.7500
111
444.7500
449.7500
32
442.7750
447.7750
72
443.7750
448.7750
112
444.7750
449.7750
33
442.8000
447.8000
73
443.8000
448.8000
113
444.8000
449.8000
34
442.8250
447.8250
74
443.8250
448.8250
114
444.8250
449.8250
35
442.8500
447.8500
75
443.8500
448.8500
115
444.8500
449.8500
36
442.8750
447.8750
76
443.8750
448.8750
116
444.8750
449.8750
37
442.9000
447.9000
77
443.9000
448.9000
117
444.9000
449.9000
38
442.9250
447.9250
78
443.9250
448.9250
118
444.9250
449.9250
39
442.9500
447.9500
79
443.9500
448.9500
119
444.9500
449.9500
40
442.9750
447.9750
80
443.9750
448.9750
120
444.9750
449.9750

25KHz spacing

July

Hello from the Richfield Amateur Radio Club (RARC)

Please join us for our July monthly meeting

(3rd Wed. each month)

 

Wednesday, July 18, 2018  7-9 pm

Richfield Community Center

7000 Nicollet Ave So.

Richfield, MN

 

 

If you’re a current member, or just someone with an interest in amateur radio, join us for an hour or two. We’ll be discussing our recent Field Day event, held June 23-24, 2018 –identifying what went well, and how we can improve next year’s Field Day event.  Tell us what you think.
Do you have any special radio-related interests?
Do you have any ideas on how to make amateur radio more fun?  
Need help getting your radio programmed, getting your first FCC license, or getting your current license upgraded? We can help.
It’s what we do!  😉

 

~~~~~

iss

ISS RXed by KC0TJ early Sunday!

I was scanning on a big VHF band opening early Sunday and I jumped out of my half a sleep slumber when some strange tones came from my radio.  I realized this was SSTV signal (Wow!) I haven’t heard that on radio for a long time. I went to check the freq and it was 145.800? I had thought it might be from out of space? I also went to turn on my other radio to see if I could decode this message. When I was more alert I quickly turned on my MMSSTV program and the sound was set to the wrong radio. (Crap!) I changed that when I was getting nothing on my PC and half the picture was already done. (Crap!) I saw mode was pd140 and then picture stopped. I had no cw ID or other encrypted info. (Crap!) I then try screen copied the partial image in hopes to figure out what I had. Then it started again and I was ready for it all. I had to keep adjusting my squelch to RX.  I went to my cell phone app to find the ISS and it was already starting over Lake Superior. I also tried to Googled what frequencies they used and mode and everything was checked to what I had everything set to. I realized afterwards that I left my antenna aimed North East and it was an extra bonus to get the whole picture see below. This was also one of the ones used by them per the website link below, and I did log it on that website.

 

73 Don KC0TJ

 

http://spaceflightsoftware.com/ARISS_SSTV/index.php

 

Some Contest fun after FD

After Field Day fun!

I, KCoTJ had fun working many contests that was around the forth and all was easy to do. The one I really liked was 13 Colonies and can’t believe it has been going for 10 Years. I did the contest right after my dad passed away. It was my way to learn how to do HF without my Dad’s help and I was better than I thought back then. I worked every station easily I aimed the antenna and tuned up the stations. I was learning that even with a pile-up I was the strong one. I found my dad had a great tuned antennas and made me a quick study. http://www.13colonies.net   However this year I mixed it up a little. I decided that all my cantacts would be 5watts I was very good at that, but the bonus was Great Britain and he was doing a lot of non-phone or voice calls. So I struggled and tried to hear him there no success. He finally near the end went back on voice and I could hear him. I had a phone app that WEBSDR I scanned one that I could hear him and it work fine, but I was noticing that there was no delays from the stations I could hear on both. So my great idea was to see if I could hear myself nope, but he was able to hear me with a 59 report. I RXed him on my cell 57 to 59 and conform my info. Yep-pi a clean sweep, I no longer was qrp but I made all my Qs. So in my haste I found that he was on D-Star earlier, I sent a DXcluster that I was on D-Star REF063B which he was on 10 mins prior. Next thing there he was. I set my radio to 5watts and QRP status was back. Below is a clip of the next station working him. remember this contest is always during the week of 4th of July for 1 weeks time.

 

I wanted to give a shout out all that make this a fun contest….

K2A, K2B, K2C, K2D, K2E, K2F, K2G, K2H, K2I, K2J, K2K, K2L, K2M, & BONUSES WM3PEN, GB13COL.

13 Colonies Contest

Some of the other things  was…

Calgary Stampede, Battle of Gettysburg Anniversary special event, & THE WORLD BANK GROUP STAFF AMATEUR RADIO CLUB, WHISKEY REBELLION FESTIVAL.

I also tried a different modes that I haven’t done while trying to get GB13COL to my log.

FT-8, D-Star, *PSK31, & *CW

* Never done it before, but watched my Dad do it.