Title: 2 Meter AM Calling Frequency Post by: WB1GCM on February 15, 2013, 04:55:23 PM Hi Folks.
I'd really like to get on 2 Meter AM, but I see that there is no coordinated AM Calling Frequency. The ARRL Repeater Directory has a 6 Meter Calling Frequency, 50.4 MHz, which I've enjoyed on and off for the past 25 years. (I use a Gonset G-50 & 3L these days). I like to ask for the advice from fellow AM'ers here for their opinions on what should be the AM Calling Frequency. I'm asking this as a Ham and in no way am I asking in behalf of the ARRL. With that said, after gathering information and a general consensus, I will do what I can to pass along the need to add "AM Calling Frequency" to the list. I know that operating anywhere on AM between 144.1 and 148 MHz is legal. It's in (at least) my own personal best interest to start activity on a frequency that I have a good chance of getting others interested in, with this mode, without causing confusion to the users of other modes. I'd rather stay away the FM part of the band. The upper portion of the SSB section seems possible at my QTH in Eastern CT. I've done a lot of weak signal work in that part of the band, so I will suggest 144.500 to 144.700 MHz as a start of this discussion; so maybe 144.600 MHz for a calling frequency? I would choose to use H polarity. There are many, many 2 Meter Lunchboxes, Gooney Boxes, and Cleggs sold on eBay. If they are in such demand, where are they? It would be a shame to have them sit on a shelf, or, am I missing something? Thanks, Bob Allison WB1GCM ARRL LaboratoryTest Engineer Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on February 15, 2013, 05:55:21 PM Bob:
I would suggest somewhere between 144.25 and 144.275 MHz. Even during contests almost all SSB activity is below 144.25. And, AM and SSB are considered "phone". 144.275 to 144.3 you have beacons. 144.6 to 144.9 are designated as FM repeater inputs. With D-Star activity expanding and conventional FM, stay away from repeater inputs/outputs. Quote ARRL's 2 Meter Band Plan 144.00-144.05 EME (CW) 144.05-144.10 General CW and weak signals 144.10-144.20 EME and weak-signal SSB 144.200 National calling frequency 144.200-144.275 General SSB operation 144.275-144.300 Propagation beacons 144.30-144.50 New OSCAR subband 144.50-144.60 Linear translator inputs 144.60-144.90 FM repeater inputs 144.90-145.10 Weak signal and FM simplex (145.01,03,05,07,09 are widely used for packet) 145.10-145.20 Linear translator outputs 145.20-145.50 FM repeater outputs 145.50-145.80 Miscellaneous and experimental modes 145.80-146.00 OSCAR subband 146.01-146.37 Repeater inputs 146.40-146.58 Simplex 146.52 National Simplex Calling Frequency 146.61-146.97 Repeater outputs 147.00-147.39 Repeater outputs 147.42-147.57 Simplex 147.60-147.99 Repeater inputs Title: Re: 2 Meter AM Calling Frequency Post by: W4EWH on February 16, 2013, 04:00:35 PM I'd really like to get on 2 Meter AM, but I see that there is no coordinated AM Calling Frequency. As far as I'm concerned, we should have stayed on 145.8. Don't tell me about OSCAR. AM came first! Bill, W1AC Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on February 16, 2013, 04:25:36 PM An 8015 KHz crystal will put you on 144.27. 8015 crystals seem to have been popular back in the "good old days". They pop up at flea markets from time to time.
Title: Re: 2 Meter AM Calling Frequency Post by: kb3ouk on February 16, 2013, 05:33:37 PM I always thought 144.3 was the 2 meter AM calling frequency?
Title: Re: 2 Meter AM Calling Frequency Post by: kc9pcp on February 18, 2013, 01:07:16 AM Most older rigs that ran AM used crystals, so we would need to pick a frequency where crystals are available to all. 8192 kilohertz crystals are the only ones within range that can be ordered from mouser or digi-key. Would have to adapt the socket though.
They would give a frequency of 147.456 in the FM simplex range. My HW-17 came with 8060 crystal for a frequency of 145.08 don't know if this was a standard or had something to do with alignment of the unit. Does anyone know what crystal the two-ers came with? There should be a lot of these crystals around. Title: Re: 2 Meter AM Calling Frequency Post by: AF4K on February 18, 2013, 10:11:51 AM THE standard AM calling frequency on 2m AM is 144.450 MHz, using a 8025 kHz crystal for those so inclined.
It has been that way in moist areas of the USA for at least the past 15 years. There are still a number of nets around the country that operate on 144.450 MHz. It is a great pity that ARRL is not better informed about this and is not sharing the information through their various media including the worldwide web sites etc. YMMV 73 de AF4K Bry Title: Re: 2 Meter AM Calling Frequency Post by: Steve - K4HX on February 18, 2013, 11:29:14 AM Have you ever contacted the ARRL and let them know?
Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on February 18, 2013, 02:07:31 PM For years, 144.4 MHz was also touted as the 2M AM calling frequency.
And, over on the AMWindow NET page, we have these listings: 144.260 ROAM* Wednesday 8:00 PM ET Midwest Ludington, MI * Royal Order of Ancient Modulators 144.28 2 Meter NY City-Long Island Net Daily 7:30 PM ET Northeast Except Sunday 144.4 Northwest AM Net Tuesday, Thursday 8:00 PM PT Northwest 144.425 New England 2 Meter AM Net Daily 7:30 PM ET Northeast 144.450 Buffalo NY AM Group Sunday 8:00 PM ET Northeast 144.450 Phoenix VHF AM Net Tuesday 7:30 PM MT Southwest 145.65 St. Clair County Illinois Radio Club 2 Meter AM Net Tuesday 7:30 PM CT Midwest Belleville IL about 15 miles east of St. Louis Mo. 145.8 The East of Scotland AM Group Saturday 7 PM Local Scotland Edinburg, Scotland area. Also random times during the week. And, on another list where possibly you could find AM operating: 2 Meters: 144.4 (Northwest) 144.425 (Massachusetts) 144.28 (NYC-Long Island) 144.45 (California) 144.265 (Los Angeles, CA) And then there is the widely circulated ARRL 2 meter band plan which I showed in an earlier post. Anything above 144.6 MHz is getting into established FM repeaters (inputs/outputs) What's not clear to me, is if "144.30-144.50 New OSCAR subband" and "144.50-144.60 Linear translator inputs" are actively being used as described. Personally, since AM is phone and similar to SSB, keeping AM operation below 144.275 MHz in the long run, would be more in line with "good operating practices". However, a written pitch needs to be formulated to the ARRL VHF/UHF Advisory Committee to get them thinking , and maybe acting, on a defined 2 meter AM "Calling Frequency". Obviously, band plans are merely "thoughtful" suggestions on where to typically operate for a specific mode. In highly populated metro areas where there can be many repeaters (voice, data, digital stuff), the band plan can be very useful in not causing interference to other operators. In less populated areas, band plans may not make any difference. Title: Re: 2 Meter AM Calling Frequency Post by: WB1GCM on February 19, 2013, 12:24:04 PM >>>>>>"It is a great pity that ARRL is not better informed about this
and is not sharing the information through their various media including the worldwide web sites etc." Well, I'm trying to figure this out, with everyone's help. I'd like to move forward, for the benefit of keeping our old VHF equipment up and running and sharing Amateur Radio History with the newcomers. We need someone to pass along our stuff to. This is all good information being shared here. If we do come up with a calling frequency to operate on, we, as a group, should be united in what ever decision we make. Thank you for your feedback. Bob Allison WB1GCM ARRL Test Engineer Title: Re: 2 Meter AM Calling Frequency Post by: WB1GCM on February 22, 2013, 05:53:01 PM OK. I have two considerations:
144.270 144.500 What say you OM? Bob Title: Re: 2 Meter AM Calling Frequency Post by: KK4YY on February 23, 2013, 06:07:11 AM Bob,
In my experience with 2M SSB the activity ran from 144.200 (national calling freq) and spread upward, growing less, toward 144.275. So, if there was AM on 144.270 it would mostly be left alone, perhaps even unnoticed, by SSB ops and could spread downward from there, if need be. It looks like a stable place for AM on 2M as SSB has been squeezed in pretty tight already. There are a lot of fine ops sitting on 144.200 waiting for the slightest weak signal peep to be heard and they need it to be kept clear there. 144.270 should be far enough away so as to never be in their way except during the most vigorus 2M SSB contest. That's the only time I ever heard SSB spread up to 144.270. That area of the band is also used (in SSB) for coordination of mircowave communications during contests at the nosebleed frequencies. AM on 144.270 should be no issue with them either. Another thing that should promote peace between modes would be the use of vertical polarization on 2M AM as the SSB use there is horizontally polarized. This would make 2M AM mobile easy to do just like FM on 2M. And vertical antennas are already out there for it. (I once had a small 2M yagi mounted on my Ford van horizontally polarized for SSB. I armstrong rotated it from inside while driving. It was fun but I wouldn't recommend it!) 144.500 looks like it's between a rock and a hard place satellite-wise. I don't see much of a future there. But selecting a frequency is the easy part. Generating an interest in 2M AM is another story. 2M AM mobile might be the hook. Just my two cents. Thanks for asking!!! Don, KK4YY Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on February 23, 2013, 01:04:16 PM I also believe that if a 2 meter calling frequency was established and publicized at 144.27 MHz there would little to no backlash from other modes. As Don points out, trying to establish a calling frequency further up the band probably has no future and success. Depending on the area of the country, there has been some renewed interest in repeater pairs for D-STAR and other digital modes. It's probably best to stay out of their cross-hairs.
As far as antenna polarization, I have mixed feelings. Although most FM operators use vertical polarization, the majority of the transmissions go through repeaters so high power generally is not required. Given that most of the boatanchor 2 meter rigs only ran low power (5 to 25 or 30 watts), with vertical polarization (i.e. ground plane, simple vertical dipole, etc.), the receive/transmit range is going to rather limited. Unless the antenna is extremely high or you opt for a rotatable vertical beam, you're only going to be able to work other 2 meter AM stations in your back yard even if you live in a metro area. Back in the 70's I built a simple 2 meter turnstile antenna that fit perfectly on the top of my AMC Pacer. It was horizontally polarized; worked in all directions; and with 10 watts SSB, making contacts 50 to 75 miles away was not a problem. Probably not all AM operators are going to embrace any 2 meter AM operating, so the ability to "reach out" as far as you can, needs to be considered for it to succeed. A pitch needs to be made to the ARRL VHF/UHF Advisory Committee (VUAC). Since the January 2013 Committee Reports have not been posted yet, here is the July 2012 Report with the list of VUAC members in the various ARRL Divisions: http://www.arrl.org/files/file/About%20ARRL/Committee%20Reports/2012/July/Doc_30-VHF-UHF.pdf Simple 2 meter Turnstile antenna: (http://www.west.net/~jay/images/turnstile.jpg) Title: Re: 2 Meter AM Calling Frequency Post by: WB1GCM on February 25, 2013, 11:58:30 AM Gentlemen,
Thank you all for your input. With the forum's blessing, I will write to all ARRL VUAC members and suggest 144.270 MHz. I think we have the best shot at that frequency as a National Calling Frequency. Remember, this would be a starting place. You can operate on any other open frequency on 2 meters once a contact has been established I will wait one week for any final comments here before contacting the VUAC. Bob Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on February 25, 2013, 01:34:09 PM Bob:
Although I can't speak for all the forum members, you definitely have my support and if there is any way I (or others) can help this along, please keep us in mind. Having a publicized 2 meter AM calling frequency on the ARRL band plan may go a long way in getting an unified acceptance from many U. S. amateurs. There are probably many boatanchor 2 meter AM rigs that have only found use as iconic shelf queens and this may go a long way in getting them up and running on a regular basis. Probably for another day and thread, but, now, who is going to pick up the charge for getting the publicized ARRL band plan to include a 15 meter AM calling frequency. It should be fairly obvious now to the ARRL Board and Committee members, after all these years, that the AM mode is an active part of amateur radio and is blessed with many active, technically oriented, and enthusiastic users. Title: Re: 2 Meter AM Calling Frequency Post by: W2VW on February 26, 2013, 02:18:48 PM Bob: Although I can't speak for all the forum members, you definitely have my support and if there is any way I (or others) can help this along, please keep us in mind. Having a publicized 2 meter AM calling frequency on the ARRL band plan may go a long way in getting an unified acceptance from many U. S. amateurs. There are probably many boatanchor 2 meter AM rigs that have only found use as iconic shelf queens and this may go a long way in getting them up and running on a regular basis. Probably for another day and thread, but, now, who is going to pick up the charge for getting the publicized ARRL band plan to include a 15 meter AM calling frequency. It should be fairly obvious now to the ARRL Board and Committee members, after all these years, that the AM mode is an active part of amateur radio and is blessed with many active, technically oriented, and enthusiastic users. Another consideration for 2 meter AM gear being relegated to the display shelf would be the front ends of many. Helical resonators made the difference for mine. There used to be a lot of pager activity line of sight. Not sure if that was the main problem. Title: Re: 2 Meter AM Calling Frequency Post by: Art on March 06, 2013, 05:46:29 PM There is a 2M SSB net on 144.2 every day at 0800 mountain time. And a weekly net on 144.22. During contests the band can be full through and into the 144.3 area. The last time I used 2M AM it was on 144.2 to an aeronautical mobile. However, I still give a call on 144.45 AM every once in a while. I agree with Pete (though I never thought I would say those words. . . ) that a frequency around 144.27 would work well. My sense is most AM activity being in the low end of the band horizontal polarization would be most practical as the FM verticals may be well out of their resonant area.
Art W0BA Title: Re: 2 Meter AM Calling Frequency Post by: W2VW on March 06, 2013, 11:06:58 PM Where do the beaacons used by ssb ops reside. Been a while but I thought they went up to .300 .
Title: Re: 2 Meter AM Calling Frequency Post by: WA2ONK on March 07, 2013, 06:11:23 AM The lists I've seen run from 144.273 to 144.400mhz. A Philly beacon that I hear quite well is on 144.282mhz, give or take a few hundred hertz.
Chuck...wa2onk Title: Re: 2 Meter AM Calling Frequency Post by: W2VW on March 07, 2013, 10:53:26 AM The lists I've seen run from 144.273 to 144.400mhz. A Philly beacon that I hear quite well is on 144.282mhz, give or take a few hundred hertz. Chuck...wa2onk Thanks Chuck. BTW my 2 meter antenna is on vacation right now. Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on March 07, 2013, 01:39:34 PM Reported 2 meter Beacons:
Mhz Call Locator State Prov City Comment 144.275 VA7SIX CN89 BC Coquitlam 50W to squalo @ 600'. 144.275 W6TOD DM15dx CA Ridgecrest 30 watts pair loops 2400' asl. 144.275 N0EC DN70lf CO 50W to pair Big Wheels. 144.275 W4CHA EL88 FL 30W to halo on broadcast tower. 144.276 W2RTB FN12ar NY Victor 3W+Eggbeater @450' asl de K2ERG, heard Feb 2008 144.277 K4HRS EL98 FL Melbourne horizontal loop. 144.277 KA0EWQ EN15 MN Johnson 10W+3el yagi aimed SE. 144.277 K5PJR EM37ka MO Sparta 144.277 W4CRZ EM93tw SC Sumter 5W to KB6KQ loop @ 20'. 144.278 N8PUM EN66dl MI Ishpeming 10W to 13 el. north for aurora. 144.278 K7XC DM09nm NV Fallon 10W to HO Loop. 144.278 N2GHR FN30ku NY Long Island 20W to 5 el. pointed 210 deg, 300' asl. 144.279 K0UO EM07sa KS Kiowa 10W 1810' AGL. 144.279 VA3MBB EN93 ON 10W to turnstile omni. 144.279 N3FTI FN20aj PA Reading 4W discone. 144.280 K0RZ DM79jx CO Boulder 5W 8dBi N and 5W 8dBi SE. 144.280 W0ETT DM79ch CO Como 30W to bigwheel 9500' asl. 144.280 VE4VHF EN19gu MB Winnepeg 15W to vertical. 144.280 VE3ZAP EN94vc ON Shelburne 144.280 VE2FUT FN25wg QC Rigeau 15W+Turnstile 550'ASL. 144.280 W5HN EM13sj TX Desert 1.5W to halo @ 180' 144.280 N4MW FM17kn VA New Kent 10W+Sqloop@90'. 144.281 VE4ARM EN09mw MB Austin 30W to 5el yagi @ 53' to SE 144.282 WR9L EN61bd IL Bradley 10W to turnstile @ 45'. 144.283 WD4KTY EM62xu AL Alexandria 25 W - Pair of loops at 800 feet ASL 144.283 KJ6KO CM88ws CA Bald Mtn 40W stacked HO loops 1700'ASL 144.283 VE3LPL EN92kx ON London 5W to halo @ 22' 144.283 W3CCX FM29jw PA Philadelphia 4W to single loop @ 435' 144.284 VE1CBC FN63 NS Yarmouth heard 4/22/08 144.284 N8LGL EM89lc OH Lake White 10W to omni. 144.285 WA4IOB EM73 GA Snellville 2W squalo 144.285 WA1ZMS FM07fm VA 1400W ERP at 4200' asl. 144.286 VE6EMU DO33ng AB 40W to pair HO loops @ 160' 144.286 N0UD DN87sh ND 30W to stacked big wheels. 144.286 WD4GSM EM86qv VA Wise 4200' asl. 144.287 W0VD EM27 144.288 N0YK DM98mg KS Friend 30W to pair M2 Ho loop @100' 144.288 VE1SMU/H FN84 NS Halifax 15W 7el Yagi SW, heard 9/25/08 144.289 KA6LSL/7 DM22tp AZ Yuma 20W to 6 el yagi pointed WNW 144.289 WA2UMX FN23xc NY Providence 20W + 2 Big Wheels 1620'ASL 144.290 WB7VVD DM32 AZ 0.5W to vert. 800' Elevation 144.290 K7PO DM32 AZ Gila Bend 15W to vertical @ 900'. 144.290 K4DOS EL96we FL Ft Lauderdal 20 watts H. Loop @ 30' 144.290 VA3SJS FN15wg ON Carp 5watts into a loop @40' 144.290 WA9HCZ EN43ju WI La Crosse 6 watts pair wheels 1170' asl. 144.291 N7BHC FM15pa NC Oriental 50W to 16 el pointed at 70 deg. 144.291 K7UV DN31xm UT Brigham City 20W to phased M2 Horiz Loops. 144.292 VE8BY FP53rs NU Iqaluit 23W to 8 bay dipole array 144.292 WA4HFN EM55ab TN Memphis 10 watts m2 loop 35' 144.293 N6NB DM05sb CA Tehachapi 144.294 N0LL EM09ow KS Smith 13W to stacked PAR omnis @ 35' 144.295 W3APL FM19ne MD Laurel 10W+loop @ 60' 144.295 VE1SMU/G FN74os NS Lake George 10W yagi pointed WSW 144.297 W1XR FN64fo ME 144.297 VE3WCC FN15wg ON Carp 3W to KU4AB horiz. omni. 144.298 WD9BGA EN53ba WI 7W to a halo 1500' asl. 144.298 K7KMT DN64ve WY 25w to a loop. 144.299 W5CFI/B EM42bl LA Start 2 w to omni at approx 30ft 144.299 K4MHZ FM25 NC Hatteras 100W to 12 el pointed 65 deg to Europe - heard 10/30/08 144.299 WA7X DM49ho UT 100W to cycloid dipole 144.300 KD4NMI FM05rt NC Knightdale 10W vertical omni @ 575'. 144.300 WA3TTS EN90xn PA Pittsburgh 10W to pair PAR loops at 44' 1200'asl. 144.300 W0BLK DN84 SD Rapid City 35 watts big wheel at 50'. 144.300 K4IDC EM76ma TN Mt. Juliet 700mw to omni loop 144.400 VO1ZA GN37js NF Carbonear 250W 11 el yagi to Europe. Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on March 07, 2013, 01:41:14 PM I agree with Pete (though I never thought I would say those words. . . ) that a frequency around 144.27 would work well. My sense is most AM activity being in the low end of the band horizontal polarization would be most practical as the FM verticals may be well out of their resonant area. Art W0BA I'm going to save this post ;D Title: Re: 2 Meter AM Calling Frequency Post by: W8ASI on August 02, 2013, 08:20:35 AM WB1GCM,
Did you ever write to the ARRL members regarding 144.270 as the suggested AM calling/simplex frequency? I am very interested in 2 meters AM, as I am on 50.400 AM every single day with a plate modulated Lafayette ha-460. Title: Re: 2 Meter AM Calling Frequency Post by: VE3LYX on February 01, 2014, 11:20:32 AM my Ebay Heathkit "twoer" is being delivered today. My pal in Trenton also has one so we are going to try working each other , about 5 miles atcf. Hopefully we have the same crystals.
Probably I should have sixer and even a tener as well. We were wondering this exact subject. Thanks for the postings Don VE3LYX Title: Re: 2 Meter AM Calling Frequency Post by: Pete, WA2CWA on February 01, 2014, 12:58:25 PM my Ebay Heathkit "twoer" is being delivered today. My pal in Trenton also has one so we are going to try working each other , about 5 miles atcf. Hopefully we have the same crystals. Probably I should have sixer and even a tener as well. We were wondering this exact subject. Thanks for the postings Don VE3LYX Given the wide wide bandwidth of the "tunable" receiver in the "twoer", same transmit crystal frequency isn't really of high importance. Title: Re: 2 Meter AM Calling Frequency Post by: Dan Yoder SWL on July 03, 2014, 07:01:28 AM Hi Guys,
My name is Dan and I just got my Tech ticket a few weeks ago, KC3DAG. I live in Butler PA and have a boat load of anchors. I might need some help getting my 6N2 Johnson up and running. Looking for some AM friends. Happy 4th Title: Re: 2 Meter AM Calling Frequency Post by: N1WVQ on March 07, 2019, 07:32:34 PM I was thinking of using 145.62, since my HW-17 is somewhat crystal & 145.62/18=8.09. Also, because it looks like the FM calling frequency of 146.52. Here, in NESMC territory, it sits between 2 FM simplex/packet frequencies (packet was displaced from 144.9-145 for more repeaters, mostly DMR).
An alternate frequency I’ve considered is 144.9. 73, Jay, N1WVQ Title: Re: 2 Meter AM Calling Frequency Post by: n4joy on March 17, 2019, 04:45:40 PM I am compiled a list of potential frequencies for 2 meter AM based on feedback from this forum and old posts on other sites. I also hope to make some 2 meter AM contacts; however, given the overall lack of interest in 6 meter AM, I am not sure how successful our efforts will be! I can count on my two hands the number of 6 meter AM contacts I have made over the past two years and it is certainly not from trying or a poor setup! :-[
2 Meters: 144.247 144.250 144.260 144.265 144.28 (NYC-Long Island) 144.350 144.4 (Northwest) 144.425 (Massachusetts) 144.45 (California) 145.50 145.65 Title: Re: 2 Meter AM Calling Frequency Post by: Steve - K4HX on March 24, 2019, 09:16:11 AM Some info at the link below (may be dated in some cases):
http://amfone.net/Amforum/index.php?topic=33062.0 Title: Re: 2 Meter AM Calling Frequency Post by: W4EWH on March 24, 2019, 10:12:38 PM I am compiled a list of potential frequencies for 2 meter AM based on feedback from this forum and old posts on other sites. I also hope to make some 2 meter AM contacts; however, given the overall lack of interest in 6 meter AM, I am not sure how successful our efforts will be! I can count on my two hands the number of 6 meter AM contacts I have made over the past two years and it is certainly not from trying or a poor setup! :-[ 2 Meters: 144.247 144.250 144.260 144.265 144.28 (NYC-Long Island) 144.350 144.4 (Northwest) 144.425 (Massachusetts) 144.45 (California) 145.50 145.65 Here's the ARRL list, from http://www.arrl.org/am-frequencies (http://www.arrl.org/am-frequencies) 2 Meters: 144.4 (Northwest) 144.425 (Massachusetts) 144.28 (NYC-Long Island) 144.45 (California) But of course I stand by my original statement from years ago: 145.8 should be sacrosanct! W4EWH Title: Re: 2 Meter AM Calling Frequency Post by: Steve - K4HX on March 26, 2019, 09:59:35 PM LOL. We're getting circular here. Those "ARRL" frees came from me. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
I am compiled a list of potential frequencies for 2 meter AM based on feedback from this forum and old posts on other sites. I also hope to make some 2 meter AM contacts; however, given the overall lack of interest in 6 meter AM, I am not sure how successful our efforts will be! I can count on my two hands the number of 6 meter AM contacts I have made over the past two years and it is certainly not from trying or a poor setup! :-[ 2 Meters: 144.247 144.250 144.260 144.265 144.28 (NYC-Long Island) 144.350 144.4 (Northwest) 144.425 (Massachusetts) 144.45 (California) 145.50 145.65 Here's the ARRL list, from http://www.arrl.org/am-frequencies (http://www.arrl.org/am-frequencies) 2 Meters: 144.4 (Northwest) 144.425 (Massachusetts) 144.28 (NYC-Long Island) 144.45 (California) But of course I stand by my original statement from years ago: 145.8 should be sacrosanct! W4EWH |