ad: AbAuRe-1

NEW 2 Bands in USA: 630meters (472-479 kHz) and 2200 meters (135.7-137.8 kHz )

Discussion in 'Amateur Radio News' started by IW2BSF, Mar 31, 2017.

ad: L-HROutlet
ad: l-rl
ad: L-MFJ
ad: Left-3
ad: Left-2
ad: abrind-2
ad: Radclub22-2
  1. KM1H

    KM1H Ham Member QRZ Page

    That hasnt stopped you from begging on the website


    You dont have the balls to do that, Id just lug it to the senile citizen center where it might be useful with all the old ladies:eek:

    I operate AM, SSB, CW on all HF bands plus 160 on MF. Now getting geared up for CW and digital on 630M MF.
     
    Last edited: Apr 26, 2017
  2. N1BCG

    N1BCG Ham Member QRZ Page

    There's an opportunity here for the high road to be taken.

    Now, about making the most of this new frontier...
     
    K1FBI likes this.
  3. KL7L

    KL7L Ham Member QRZ Page

    For the naysayers :) So heres a little history - from a reasonable Oklahoma lot say 120 x 80ft with a couple of 50ft tall trees in it, and a slung over branches a low rf loss conductor loop ( 2 loops of Homedepot #6 tffn) and an EIRP of around 2W made it to New Zealand on numerous occasions; trans America contracts on digital/visual modes were commonplace and nightly - just don't expect to plug your microphone in! WH2XND in Arizona is received about 95% of nights here in Alaska at over 4000Kms on 2200m. And Yes, its technically a little more effort, and Yes higher voltages, with more DX in winter -but Trans Atlantic and Trans Pacific paths are open just about year round but very subject to Solar and Geogmag - Salt water paths really help too - KL7 to KH6 signal levels on 630m for some of the night are at a good 2 way CW levels - but its a superb technical challenge and very rewarding - sort of reverse engineering early days EME.

    On 630m its a little easier (!) to get to 5W limit for back yarders; Im using 100W to get to 5W EIRP into an inverted top cap loaded L in the garden here - and for those naysayers just take a look at one mode possible mode in use - and the WSPR2 decodes and number of part 5 and ham operators on every night - reception station numbers and distances can exceed 160m/80m, although its a tadge noiser in the lower 48 with summer storms - VK>Eu and VK even to East coast USA (a couple of days back) on WSPR2 is possible.

    Ive been active on 2200m (WD2XDW and WE2XPQ part 5) since 2003 and 630m a few years later and its a load of fun, technical challenging but very rewarding (presently writing a QSL card to VK3GJZ who received my WE2XPQ signals a couple of weeks back) - so, when we finally get the band don't pooh pooh it as a dead loss because of the power limitations - getting to 1W on 137kHz is for many going to be a real challenge in any case and has been proven in the rest of the world who have had the band for many years not really a restriction on what can be done. There are visual modes such as qrss dfcw, Aurtal such as cw, and digital such as opera, wolf, jt9, wsp2 and 15, and many more - the experimental sky is the limit - we just work closer to the noise....

    Goto WSPR.org and type in 630m and 2200m for last night and just see whats done -even with 1 or 5W EIRP - it may open your eyes.

    My 630/2200m rx antennae is a small 1m long white vertical high impedance probe with 12 components in it stuck up a small tree - no mega towers here - everything is nested in trees because of of HOA and im at the end of a runway -- regards Laurence KL7L
     
    N1BCG and W0GSQ like this.

Share This Page

ad: Schulman-1