Magellan ProMark3 RTK Instrukcja Użytkownika Strona 1

1Extending ProMark 3 RTK Radio Range

10 7 -open-(cts) 8 -open- (tx+) 9 -open- (tx1) 10 Red (+12 to PM3) (rx+ used as placeholder) 11 (right) -open- (rx-) Pins 2 and 3 ar

11 I used glue filled heat shrink over the end of the cable to insure that it can’t be pulled through the strain relief instead of wire-tying the ca

12 Note the 1,500 uF electrolytic capacitor which must be installed inside the modem enclosure. You MUST add this capacitor near the modem or the

13 Here is a picture of how I made the connections on the battery/PM3 end of the cable with glue filled heat shrink: If you are going to be spen

2Extending ProMark 3 RTK Radio Range By: Mark Silver, KD7NKY Igage Mapping Corporation [email protected] Date: November 2009 Thesis: A simple modif

3We (Igage) sell an excellent Pacific Crest radio alternative that provides long range and TrimTalk compatibility. The price is nearly $5,600! You ca

4 Web Page: http://www.adeunis-rf.com/en/products/2-data-modem/27-arf53.html Manual: http://www.adeunis-rf.com/files/produit/ARF53/EN/ARF53-Modem-da

5possibly overpowering transmissions. You can read more about FHSS at http://en.wikipedia.org/wiki/Frequency-hopping_spread_spectrum. One consequence

6 From experience, I have found that most radio problems are due to the DGPS setting being set to NONE instead of UHF. If your radios are not work

7 S 2 3 2 = 0 ^M ^J S232=0.. S 2 5 2 = 0 0 0 0 ^M ^J

8Because the receivers in the RF53’s are quite sensitive, they work with less than optimum Fresnel Zone clearance. But we can not over emphasize the

9 We have to add a decoupling capacitor near the radio to supply burst power at the end of the long extension cable (a 1,500 uF 35V electrolytic cap